10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

_________________________________

FORM 10-Q

_________________________________

(MARK ONE)

☒    QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

        For the quarterly period ended March 31, 2022

OR

☐    TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE TRANSITION PERIOD FROM              TO             

Commission file number 001-34717

__________________________

Alpha and Omega Semiconductor Limited

(Exact name of Registrant as Specified in its Charter)

Bermuda	77-0553536
(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification Number)

Clarendon House, 2 Church Street

Hamilton HM 11, Bermuda

(Address of Principal Registered

Offices including Zip Code)

(408) 830-9742

(Registrant's Telephone Number, Including Area Code)

__________________________________________

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months, (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ☒    No  ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  ☒     No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company or an emerging growth company. See definitions of “large accelerated filer,” “accelerated filer”, “smaller reporting company”, and "emerging growth company" in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer	☐	Accelerated filer	☒	Non-accelerated filer	☐
				(Do not check if a smaller reporting company)
Smaller reporting company	☐	Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Shares	AOSL	The NASDAQ Global Select Market

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ☐    No  ☒

Number of common shares outstanding as of April 28, 2022: 27,068,51625,770,998

Alpha and Omega Semiconductor Limited

Form 10-Q

Fiscal Second Quarter Ended March 31, 2022

TABLE OF CONTENTS

		Page
Part I.	FINANCIAL INFORMATION
Item 1.	Financial Statements:	1
	Condensed Consolidated Balance Sheets as of March 31, 2022 and June 30, 2021 (Unaudited)	1
	Condensed Consolidated Statements of Income for the Three and Nine Months Ended March 31, 2022 and 2021 (Unaudited)	2
	Condensed Consolidated Statements of Comprehensive Income for the Three and Nine Months Ended March 31, 2022 and 2021 (Unaudited)	3
	Condensed Consolidated Statements of Changes in Equity for the Three and Nine Months Ended March 31, 2022 and 2021 (Unaudited)	4
	Condensed Consolidated Statements of Cash Flows for the Nine Months Ended March 31, 2022 and 2021 (Unaudited)	6
	Notes to Condensed Consolidated Financial Statements (Unaudited)	7
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	33
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	48
Item 4.	Controls and Procedures	48
Part II.	OTHER INFORMATION
Item 1.	Legal Proceedings	49
Item 1A.	Risk Factors	49
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	52
Item 3.	Defaults Upon Senior Securities	53
Item 4.	Mine Safety Disclosures	53
Item 5.	Other Information	53
Item 6.	Exhibits	54
	Signatures	55

PART I. FINANCIAL INFORMATION

ALPHA AND OMEGA SEMICONDUCTOR LIMITED
CONDENSED CONSOLIDATED BALANCE SHEETS
(Unaudited, in thousands except par value per share)
	March 31, 2022		June 30, 2021
ASSETS
Current assets:
Cash and cash equivalents	$	323,134	$	202,412
Restricted cash	236		233
Accounts receivable, net	39,207		35,789
Inventories	143,538		154,293
Other current assets	11,698		14,595
Total current assets	517,813		407,322
Property, plant and equipment, net	245,770		436,977
Operating lease right-of-use assets, net	24,971		34,660
Intangible assets, net	10,890		13,410
Equity method investment	379,824		—
Deferred income tax assets	436		5,167
Restricted cash - long-term	—		2,168
Other long-term assets	29,465		18,869
Total assets	$	1,209,169	$	918,573
LIABILITIES AND EQUITY
Current liabilities:
Accounts payable	$	69,758	$	80,699
Accrued liabilities	91,333		69,494
Payable related to equity investee, net	15,171		—
Income taxes payable	6,733		2,604
Short-term debt	11,332		58,030
Finance lease liabilities	862		16,724
Operating lease liabilities	4,303		5,679
Total current liabilities	199,492		233,230
Long-term debt	53,887		77,990
Income taxes payable - long-term	1,359		1,319
Deferred income tax liabilities	29,192		2,448
Finance lease liabilities - long-term	3,834		12,698
Operating lease liabilities - long-term	22,120		30,440
Other long-term liabilities	72,384		44,123
Total liabilities	382,268		402,248
Commitments and contingencies (Note 12)
Equity:
Preferred shares, par value $0.002 per share:
Authorized: 10,000 shares; issued and outstanding: none at March 31, 2022 and June 30, 2021	—		—
Common shares, par value $0.002 per share:
Authorized: 100,000 shares; issued and outstanding: 33,681 shares and 27,063 shares, respectively at March 31, 2022 and 32,975 shares and 26,350 shares, respectively at June 30, 2021	67		66
Treasury shares at cost: 6,618 shares at March 31, 2022 and 6,625 shares at June 30, 2021	(66,006)		(66,064)
Additional paid-in capital	276,509		259,993
Accumulated other comprehensive income	1,422		2,315
Retained earnings	614,909		176,895
Total Alpha and Omega Semiconductor Limited shareholder's equity	826,901		373,205
Noncontrolling interest	—		143,120
Total equity	826,901		516,325
Total liabilities and equity	$	1,209,169	$	918,573

See accompanying notes to these condensed consolidated financial statements.

1

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

(Unaudited, in thousands except per share data)

	Three Months Ended March 31,				Nine Months Ended March 31,
	2022		2021		2022		2021
Revenue	$	203,239	$	169,212	$	583,593	$	479,593
Cost of goods sold	130,837		116,521		378,259		335,630
Gross profit	72,402		52,691		205,334		143,963
Operating expenses
Research and development	16,545		15,557		50,873		45,671
Selling, general and administrative	24,625		19,338		70,563		56,579
Total operating expenses	41,170		34,895		121,436		102,250
Operating income	31,232		17,796		83,898		41,713
Other income (loss), net	263		(253)		720		2,087
Interest income (expense), net	(308)		(1,562)		(3,025)		(4,832)
Gain on deconsolidation of the JV Company	—		—		399,093		—
Gain (loss) on changes of equity interest in the JV Company, net	4,501		—		(3,140)		—
Net income before income taxes	35,688		15,981		477,546		38,968
Income tax expense	2,902		1,014		38,318		2,694
Net income before loss from equity method investment	32,786		14,967		439,228		36,274
Equity method investment loss from equity investee	1,136		—		1,136		—
Net income	31,650		14,967		438,092		36,274
Net gain (loss) attributable to noncontrolling interest	—		(1,133)		20		(2,303)
Net income attributable to Alpha and Omega Semiconductor Limited	$	31,650	$	16,100	$	438,072	$	38,577
Net income per common share attributable to Alpha and Omega Semiconductor Limited
Basic	$	1.18	$	0.62	$	16.47	$	1.51
Diluted	$	1.11	$	0.58	$	15.58	$	1.42
Weighted average number of common shares attributable to Alpha and Omega Semiconductor Limited used to compute net income per share
Basic	26,829		25,882		26,596		25,631
Diluted	28,423		27,716		28,116		27,128

See accompanying notes to these condensed consolidated financial statements.

2

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited, in thousands)

	Three Months Ended March 31,				Nine Months Ended March 31,
	2022		2021		2022		2021
Net income including noncontrolling interest	$	31,650	$	14,967	$	438,092	$	36,274
Other comprehensive income, net of tax
Foreign currency translation adjustment	162		(799)		1,649		11,718
Cumulative translation adjustment removal due to deconsolidation of the JV Company	—		—		(3,642)		—
Comprehensive income	31,812		14,168		436,099		47,992
Less: Noncontrolling interest	—		(1,447)		(1,080)		3,292
Comprehensive income attributable to Alpha and Omega Semiconductor Limited	$	31,812	$	15,615	$	437,179	$	44,700

See accompanying notes to these condensed consolidated financial statements.

3

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY

(Unaudited, in thousands)

	Common Shares		Treasury Stock		Additional Paid-In Capital		Accumulated Other Comprehensive Income (Loss)		Retained Earnings		Total AOS Shareholders' Equity		Noncontrolling Interest		Total Equity
Balance, December 31, 2020	$	65	$	(66,097)	$	254,980	$	1,481	$	141,289	$	331,718	$	142,938	$	474,656
Exercise of common stock options and release of restricted stock units	—		—		129		—		—		129		—		129
Reissuance of treasury stock upon exercise of common stock options and release of restricted stock units	—		33		—		—		(33)		—		—		—
Withholding tax on restricted stock units	—		—		(5,200)		—		—		(5,200)		—		(5,200)
Share-based compensation	—		—		3,025		—		—		3,025		—		3,025
Net income (loss) including noncontrolling interest	—		—		—		—		16,100		16,100		(1,133)		14,967
Foreign currency translation adjustment	—		—		—		(485)		—		(485)		(314)		(799)
Balance, March 31, 2021	$	65	$	(66,064)	$	252,934	$	996	$	157,356	$	345,287	$	141,491	$	486,778
	Common Shares		Treasury Stock		Additional Paid-In Capital		Accumulated Other Comprehensive Income (Loss)		Retained Earnings		Total AOS Shareholders' Equity		Noncontrolling Interest		Total Equity
Balance, June 30, 2020	$	64	$	(66,184)	$	246,103	$	(5,127)	$	118,833	$	293,689	$	138,199	$	431,888
Exercise of common stock options and release of restricted stock units	—		—		1,624		—		—		1,624		—		1,624
Reissuance of treasury stock upon exercise of common stock options and release of restricted stock units	—		120		—		—		(54)		66		—		66
Withholding tax on restricted stock units	—		—		(6,153)		—		—		(6,153)		—		(6,153)
Issuance of shares under ESPP	1		—		1,635		—		—		1,636		—		1,636
Share-based compensation	—		—		7,725		—		—		7,725		—		7,725
Restricted stock units settlement in connection with service	—		—		2,000		—		—		2,000		—		2,000
Net income (loss) including noncontrolling interest	—		—		—		—		38,577		38,577		(2,303)		36,274
Foreign currency translation adjustment	—		—		—		6,123		—		6,123		5,595		11,718
Balance, March 31, 2021	$	65	$	(66,064)	$	252,934	$	996	$	157,356	$	345,287	$	141,491	$	486,778

4

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY

(Unaudited, in thousands)

	Common Shares		Treasury Stock		Additional Paid-In Capital		Accumulated Other Comprehensive Income (Loss)		Retained Earnings		Total AOS Shareholders' Equity		Noncontrolling Interest		Total Equity
Balance, December 31, 2021	$	67	$	(66,046)	$	275,410	$	1,260	$	583,299	$	793,990	$	—	$	793,990
Exercise of common stock options and release of restricted stock units	—		—		558		—		—		558		—		558
Reissuance of treasury stock upon exercise of common stock options and release of RSUs	—		40		—		—		(40)		—		—		—
Withholding tax on restricted stock units	—		—		(7,732)		—		—		(7,732)		—		(7,732)
Share-based compensation	—		—		8,273		—		—		8,273		—		8,273
Net income including noncontrolling interest	—		—		—		—		31,650		31,650		—		31,650
Foreign currency translation adjustment	—		—		—		162		—		162		—		162
Balance, March 31, 2022	$	67	$	(66,006)	$	276,509	$	1,422	$	614,909	$	826,901	$	—	$	826,901
	Common Shares		Treasury Stock		Additional Paid-In Capital		Accumulated Other Comprehensive Income (Loss)		Retained Earnings		Total AOS Shareholders' Equity		Noncontrolling Interest		Total Equity
Balance, June 30, 2021	$	66	$	(66,064)	$	259,993	$	2,315	$	176,895	$	373,205	$	143,120	$	516,325
Exercise of common stock options and release of restricted stock units	—		—		859		—		—		859		—		859
Reissuance of treasury stock upon exercise of common stock options and release of RSUs	—		58		—		—		(58)		—		—		—
Withholding tax on restricted stock units	—		—		(8,354)		—		—		(8,354)		—		(8,354)
Issuance of shares under ESPP	1		—		2,422		—		—		2,423		—		2,423
Share-based compensation	—		—		21,189		—		—		21,189		—		21,189
Restricted stock units settlement in connection with service	—		—		400		—		—		400		—		400
Net income including noncontrolling interest through December 1, 2021	—		—		—		—		438,072		438,072		20		438,092
Foreign currency translation adjustment	—		—		—		900		—		900		749		1,649
Deconsolidation of noncontrolling interest	—		—		—		(1,793)		—		(1,793)		(143,889)		(145,682)
Balance, March 31, 2022	$	67	$	(66,006)	$	276,509	$	1,422	$	614,909	$	826,901	$	—	$	826,901

See accompanying notes to these condensed consolidated financial statements.

5

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited, in thousands)

	Nine Months Ended March 31,
	2022		2021
Cash flows from operating activities
Net income including noncontrolling interest through December 1, 2021	$	438,092	$	36,274
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on deconsolidation of the JV Company	(399,093)		—
Loss on changes of equity interest in the JV Company, net	3,140		—
Deferred income tax on deconsolidation and changes of equity interest in the JV Company	29,973		—
Depreciation and amortization	34,263		39,434
Loss on equity investment	1,136		—
Share-based compensation expense	21,454		9,925
Deferred income taxes, net	2,182		732
Loss on disposal of property and equipment	57		40
Changes in operating assets and liabilities, net of effects of a divestiture
Accounts receivable	(3,610)		(20,448)
Inventories	(42,914)		(9,582)
Other current and long-term assets	(10,078)		(2,297)
Other payable, equity investee	34,375		—
Accounts payable	15,608		(224)
Income taxes payable	(1)		1,097
Income taxes payable on deconsolidation and changes of equity interest in the JV Company	3,490		—
Accrued and other liabilities	65,122		29,573
Net cash provided by operating activities	193,196		84,524
Cash flows from investing activities
Proceeds from sale of equity interest in the JV Company	26,347		—
Deconsolidation of cash and cash equivalents of the JV Company	(20,734)		—
Purchases of property and equipment excluding the JV Company	(82,980)		(24,913)
Purchases of property and equipment in JV Company	(15,026)		(15,628)
Proceeds from sale of property and equipment	9		10
Government grant related to equipment	1,242		119
Net cash used in investing activities	(91,142)		(40,412)
Cash flows from financing activities
Withholding tax on restricted stock units	(8,354)		(6,153)
Proceeds from exercise of stock options and ESPP	3,282		3,326
Proceeds from borrowings	59,262		42,858
Repayments of borrowings	(33,663)		(44,087)
Principal payments on finance leases	(4,176)		(12,267)
Net cash provided by (used in) financing activities	16,351		(16,323)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	152		3,982
Net increase in cash, cash equivalents and restricted cash	118,557		31,771
Cash, cash equivalents and restricted cash at beginning of period	204,813		162,704
Cash, cash equivalents and restricted cash at end of period	$	323,370	$	194,475
Supplemental disclosures of non-cash investing and financing information:
Property and equipment purchased but not yet paid	$	25,565	$	16,912

See accompanying notes to these condensed consolidated financial statements.

6

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

1. The Company and Significant Accounting Policies

The Company

Alpha and Omega Semiconductor Limited and its subsidiaries (the “Company”, “AOS”, “we” or “us”) design, develop and supply a broad range of power semiconductors. The Company's portfolio of products targets high-volume applications, including personal and portable computers, graphic cards, flat panel TVs, home appliances, smart phones, battery packs, quick chargers, home appliances, consumer and industrial motor controls and power supplies for TVs, computers, servers and telecommunications equipment. The Company conducts its operations primarily in the United States of America (“USA”), Hong Kong, China, and South Korea.

Basis of Preparation

The accompanying unaudited Condensed Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) for interim financial information and with the instructions to Article 10 of Securities and Exchange Commission Regulation S-X, as amended. They do not include all information and footnotes necessary for a fair presentation of financial position, results of operations and cash flows in conformity with U.S. GAAP for complete financial statements. These Condensed Consolidated Financial Statements should be read in conjunction with the consolidated financial statements and related notes contained in the Company’s Annual Report on Form 10-K for the fiscal year ended June 30, 2021. All significant intercompany balances and transactions have been eliminated in consolidation. In the opinion of management, all adjustments (consisting of normal recurring adjustments and accruals) considered necessary for a fair presentation of the results of operations for the periods presented have been included in the interim periods. Operating results for the nine months ended March 31, 2022 are not necessarily indicative of the results that may be expected for the fiscal year ending June 30, 2022 or any other interim period. The consolidated balance sheet at June 30, 2021 is derived from the audited financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended June 30, 2021.

Reclassification

The Company has reclassified certain amounts previously reported in its financial statements to conform to the current presentation. These reclassifications did not have a material impact on our Condensed Consolidated Financial Statements. See Note 11.

Joint Venture and Deconsolidation

On March 29, 2016, the Company entered into a joint venture contract (the “JV Agreement”) with two investment funds owned by the Municipality of Chongqing (the “Chongqing Funds”), pursuant to which the Company and the Chongqing Funds formed a joint venture, (the “JV Company”), for the purpose of constructing and operating a power semiconductor packaging, testing and 12-inch wafer fabrication facility (“Fab”) in the LiangJiang New Area of Chongqing, China (the “JV Transaction”). The Fab is being built in phases.  As of December 1, 2021, the Company owned 50.9%, and the Chongqing Funds owned 49.1% of the equity interest in the JV Company. The Joint Venture was accounted under the provisions of the consolidation guidance since the Company had controlling financial interest until December 1, 2021.

Effective December 1, 2021, the Company entered into a share transfer agreement (the “STA”) with a third-party investor (the “Investor”), pursuant to which the Company sold to the Investor approximately 2.1% of outstanding equity interest held by the Company in the JV Company for an aggregate purchase price of RMB 108 million or approximately $16.9 million (the “Transaction”). The Transaction was closed on December 2, 2021 (the “Closing Date”). As a result of the Transaction, as of the Closing Date, the Company’s equity interest in the JV Company decreased from 50.9% to 48.8%. Also, the Company’s right to designate directors on the board of JV Company was reduced to three (3) out of seven (7) directors from four (4) directors prior to the Transaction. As a result of the Transaction, AOS no longer had a controlling financial interest in the JV Company under generally accepted accounting principles. Loss of control is deemed to have occurred when, among other things, a parent company owns less than a majority of the outstanding equity interest in the subsidiary, lacks a controlling financial interest in the subsidiary and, is unable to unilaterally control the subsidiary through other means such as having, or the ability to obtain or represent, a majority of the subsidiary’s Board of Directors. Because of these factors, as of December 2, 2021, the Company ceased having control over the JV Company. Therefore, the Company deconsolidated the financial

7

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

statements of the JV Company as of that date. Subsequently, the Company has accounted for its investment in the JV Company using the equity method of accounting.

On December 24, 2021, the Company entered into a share transfer agreement with another third-party investor, pursuant to which the Company sold to this investor 1.1% of outstanding equity interest held by the Company in the JV Company for an aggregate purchase price of RMB 60 million, or approximately $9.4 million. In addition, the JV Company adopted an employee equity incentive plan and issued an equity interest equivalent to 3.99% of the JV Company in exchange for cash. As a result, the Company owned 45.8% of the equity interest in the JV Company as of December 31, 2021.

On January 26, 2022, the JV Company completed a financing transaction pursuant to a corporate financing agreement (the “Financing Agreement”) between the JV Company and certain third-party investors (the “New Investors”). Under the Financing Agreement, the New Investors purchased newly issued equity interest of JV for a total purchase price of RMB 509 million (or approximately $80 million based on the currency exchange rate as of January 26, 2022) (the “Investment”). Immediately following the closing of the Investment, the percentage of outstanding JV equity interest beneficially owned by the Company was further reduced to 42.2%.

Certain Significant Risks and Uncertainties Related to Outbreak of Coronavirus Disease 2019 (“COVID-19”)

The COVID-19 pandemic has had and continues to have a negative impact on business and economic activities across the globe. As a result of the COVID-19 pandemic and the global economic downturn and changing consumer behaviors due to various restrictions imposed by governments, the Company has experienced shifting market trends, including an increasing demand in the markets for notebooks, PCs and gaming devices and decreasing demand for mobile phone and industrial products, as more consumers are staying at and working from home. While the Company has recently benefited from the increasing demand of consumer electronics and PC related products, there is no guarantee that this trend will continue, and such increasing demand may discontinue or decline as government authorities relax and terminate COVID-19 related restrictions and consumer behaviors change. Furthermore, as the COVID-19 pandemic continues and global economic downturn and high unemployment persists, consumer spending may slow down substantially, in which case the Company may experience a significant decline of customer orders for its products, including those designed for PC-related applications, and such decline will adversely affect its financial conditions and results of operations. The full extent of the future impact of the COVID-19 pandemic on the Company’s operational and financial performance is uncertain and will depend on many factors outside the Company’s control, including, without limitation, the timing, extent, trajectory and duration of the pandemic; the availability, distribution and effectiveness of vaccines; the spread of new variants of COVID-19; the continued or renewed imposition of protective public safety measures and government mandates; the continuing disruption of global supply chain affecting the semiconductor industry; and the impact of the pandemic on the global economy and demand for consumer products.

In April 2022, the operations of our two packaging and testing facilities in Shanghai, China were suspended due to a strict lockdown of the city imposed by the local government in response to surging COVID cases. Our facilities in Shanghai were required to shut down and production was halted beginning in mid-April. Transportation suspension in and out of Shanghai also interrupted the shipping of raw materials and finished parts to and from our facilities. We have been working closely with factory management to separate non-infected employees from infected employees, perform regular COVID-19 testing, and secure food, water, and other necessary supplies to support employees who have been affected. In addition, we have been working with local authorities to obtain permission to reopen the facilities, and as of the date of this Form 10-Q, we have received permission to reopen our facilities partially under a “closed-loop” arrangement. Under this arrangement, some of our employees are allowed to live and work on the premises. However, the pace at which we can resume full operations remains challenging due to difficulties in bringing back our workforce to the facilities, procuring certain raw materials and resolving logistical bottlenecks. Currently we intend to gradually ramp up production at these facilities in May and return to normal operation in June 2022, assuming no additional restriction and lockdown are imposed by the government. Furthermore, while we seek to secure alternative sources of packaging capacity from third-party providers to mitigate the loss of in-house packaging capacity, there is no guarantee that such sources are available. Even if alternative sources are available, it will be difficult to complete the transition to a new supplier efficiently and timely, and we currently do not expect to secure sufficient third-party sources to substitute or replace fully our in-house packaging and testing capacity. The suspension of our Shanghai facilities, and the subsequent partial resumption of production, reduces our ability to complete orders from our customers in a timely manner, or at all, which is expected to adversely affect our revenue and results of operation for the three months ending June 30, 2022. It is uncertain how long the Shanghai government intends to impose a shutdown, and even when lifted, the government may reimpose strict zero-positive-case requirements and lockdown. It is not possible to predict at this time the ultimate duration of these restrictions or the impact on financial results in the near-term.

Use of Estimates

8

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

The preparation of the Condensed Consolidated Financial Statements in conformity with U.S. GAAP requires the Company to make estimates, judgments and assumptions that affect the reported amounts of assets, liabilities, revenue and expenses. To the extent there are material differences between these estimates and actual results, the Company's Condensed Consolidated Financial Statements will be affected. On an ongoing basis, the Company evaluates the estimates, judgments and assumptions including those related to stock rotation returns, price adjustments, allowance for doubtful accounts, inventory reserves, warranty accrual, income taxes, leases, share-based compensation, recoverability of and useful lives for property, plant and equipment and intangible assets, as well as the economic implications of the COVID-19 pandemic.

Leases

The Company determines if an arrangement is a lease at inception. Operating leases are included in operating lease right-of-use (“ROU”) assets, current operating lease liabilities and long-term operating lease liabilities on the Company's Condensed Consolidated Balance Sheets. Finance leases are included in property, plant and equipment, finance lease liabilities and long-term finance leases liabilities on the Condensed Consolidated Balance Sheets.

Operating lease ROU assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. The Company uses an estimate of its incremental borrowing rate based on the information available at the lease commencement date. The operating lease ROU assets also include any lease payments made and exclude lease incentives. Lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise such options. Operating lease expense is generally recognized on a straight-line basis over the lease term. Variable lease payments are expensed as incurred and are not included within the operating lease ROU asset and lease liability calculation. The Company does not record leases on the Condensed Consolidated Balance Sheet with a term of one year or less. The Company elected to combine its lease and non-lease components as a single lease component for all asset classes.

Revenue recognition

The Company determines revenue recognition through the following steps: (1) identification of the contract with a customer; (2) identification of the performance obligations in the contract; (3) determination of the transaction price; (4) allocation of the transaction price to the performance obligations in the contract; and (5) recognition of revenue when, or as, a performance obligation is satisfied. The Company recognizes product revenue at a point in time when product is shipped to the customer, net of estimated stock rotation returns and price adjustments that it expects to provide to certain distributors. The Company presents revenue net of sales taxes and any similar assessments. Our standard payment terms range from 30 to 60 days.

The Company sells its products primarily to distributors, who in turn sell the products globally to various end customers. The Company allows stock rotation returns from certain distributors. Stock rotation returns are governed by contract and are limited to a specified percentage of the monetary value of products purchased by distributors during a specified period. The Company records an allowance for stock rotation returns based on historical returns and individual distributor agreements. The Company also provides special pricing to certain distributors, primarily based on volume, to encourage resale of the Company’s products. Allowance for price adjustments is recorded against accounts receivable and the provision for stock rotation rights is included in accrued liabilities on the Condensed Consolidated Balance Sheets.

The Company’s performance obligations relate to contracts with a duration of less than one year. The Company elected to apply the practical expedient provided in ASC 606, “Revenue from Contracts with Customers”. Therefore, the Company is not required to disclose the aggregate amount of transaction price allocated to performance obligations that are unsatisfied or partially unsatisfied at the end of the reporting period.

The Company recognizes the incremental direct costs of obtaining a contract, which consist of sales commissions, when control over the products they relate to transfers to the customer. Applying the practical expedient, the Company recognizes commissions as expense when incurred, as the amortization period of the commission asset the Company would have otherwise recognized is less than one year.

Packaging and testing services revenue is recognized at a point in time upon shipment of serviced products to the customer.

Share-based Compensation Expense

9

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

The Company maintains an equity-settled, share-based compensation plan to grant restricted share units and stock options. The Company recognizes expense related to share-based compensation awards that are ultimately expected to vest based on estimated fair values on the date of grant. The fair value of restricted share units is based on the fair value of the Company's common share on the date of grant. For restricted stock awards subject to market conditions, the fair value of each restricted stock award is estimated at the date of grant using the Monte-Carlo pricing model. The fair value of stock options is estimated on the date of grant using the Black-Scholes option valuation model. Share-based compensation expense is recognized on the accelerated attribution basis over the requisite service period of the award, which generally equals the vesting period. The Employee Share Purchase Plan (the “ESPP”) is accounted for at fair value on the date of grant using the Black-Scholes option valuation model.

Restricted Cash

The Company maintains restricted cash in connection with cash balances temporarily restricted for regular business operations, including the possibility of a dispute with a vendor. In addition, as a condition of certain loan agreement, the Company was required to keep a compensating balance at the issuing bank. These balances have been excluded from the Company’s cash and cash equivalents balance and are classified as restricted cash in the Company’s Condensed Consolidated Balance Sheets. As of March 31, 2022 and June 30, 2021, the amount of restricted cash was $0.2 million and $2.4 million, respectively.

Equity method investment

The Company uses the equity method of accounting when it has the ability to exercise significant influence, but not control, as determined in accordance with general accepted accounting principles, over the operating and financial policies of the investee. Effective December 2, 2021, the Company reduced its equity interest in the JV Company and experienced a loss of control of the JV Company. As a result, beginning December 2, 2021, the Company records its investment under equity method of accounting. Since the Company is unable to obtain accurate financial information from the JV Company in a timely manner, the Company records its share of earnings or losses of such affiliate on a one quarter lag. Therefore, the Company’s share of losses of the JV Company for the period from December 2, 2021 to December 31, 2021 was recorded in the Company’s Consolidated Statement of Operations for the three and nine months ended March 31, 2022. The Company discloses and recognizes intervening events at the JV Company in the lag period that could materially affect our consolidated financial statements, if applicable.

The Company records its interest in the net earnings of its equity method investees, along with adjustments for unrealized profits or losses on intra-entity transactions and amortization of basis differences, within earnings or loss from equity interests in the Consolidated Statements of Income. Profits or losses related to intra-entity sales with its equity method investees are eliminated until realized by the investor and investee. Basis differences represent differences between the cost of the investment and the underlying equity in net assets of the investment and are generally amortized over the lives of the related assets that gave rise to them. Equity method goodwill is not amortized or tested for impairment; instead the equity method investment is tested for impairment. The Company reviews for impairment whenever factors indicate that the carrying amount of the investment might not be recoverable. In such a case, the decrease in value is recognized in the period the impairment occurs in the Condensed Consolidated Statements of Income.

Fair Value of Financial Instruments

The fair value of cash equivalents is categorized in Level 1 in the fair value hierarchy. Cash equivalents consist primarily of short-term bank deposits. The carrying values of financial instruments such as cash and cash equivalents, accounts receivable and accounts payable approximate their carrying values due to their short-term maturities. The carrying value of the Company's debt is considered a reasonable estimate of fair value which is estimated by considering the current rates available to the Company for debt of the same remaining maturities, structure, credit risk and terms of the debts.

Government Grants

The Company occasionally receives government grants that provide financial assistance for certain eligible expenditures in China. These grants include reimbursements on interest expense on bank borrowings, payroll tax credits, credit for property, plant and equipment in a particular geographical location, employment credits, as well as business expansion credits. Government grants are not recognized until there is reasonable assurance that the Company will comply with the conditions

10

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

attaching to it, and that the grant will be received. The Company records such grants either as a reduction of the related expense, a reduction of the cost of the related asset, or as other income depending upon the nature of the grant. As a result of such grants, during the three and nine months ended March 31, 2022, the Company reduced interest expense by nil and $0.9 million, property, plant and equipment by nil and $1.2 million, and operating expenses by $0.0 million and $0.2 million, respectively. During the three and the nine months ended March 31, 2021, the Company reduced interest expense by $0.7 million and $2.2 million, property, plant and equipment by nil and $0.1 million and operating expenses by $0.1 million and $3.7 million, respectively.

Long-lived Assets

The Company evaluates its long-lived assets for impairment whenever events or changes indicate that the carrying amount of such assets may not be recoverable. Due to the COVID-19 pandemic, the Company assessed the changes in circumstances that occurred during the March and June 2020 quarters. These factors included continued operating losses, a decrease in the Company's share price in February and March of 2020, which reduced its market capitalization, expectation of lower business growth for the coming quarters, increased and prolonged economic and regulatory uncertainty in the global economies, and the expectation of higher supply chain costs and increased competition. Therefore, the Company performed a recoverability test by comparing the sum of the estimated undiscounted future cash flows of its long-lived assets to their carrying amount as of June 30, 2020. Some of the more significant assumptions used in the estimated future cash flows involve net sales, cost of goods sold, operating expenses, working capital, capital expenditures, income tax rates, long-term growth rates that appropriately reflect the risks inherent in the future cash flow stream and terminal value. The Company selected the assumptions used in the financial forecasts by referencing to historical data, supplemented by current and anticipated market conditions, estimated product growth rates and management's plans. These estimated future cash flows were consistent with those the Company uses in its internal planning. The result of the recoverability test indicated that the sum of the expected future cash flows (undiscounted and without interest charges) was greater than the carrying amount of the long-lived assets. Since this recoverability test was performed during fiscal 2020, circumstances have improved such that there are no indicators that the Company’s long-lived assets may not be recoverable.

Comprehensive Income

Comprehensive income is defined as the change in equity of a business enterprise during a period from transactions and other events and circumstances from non-owner sources. The Company's accumulated other comprehensive income consists of cumulative foreign currency translation adjustments. Total comprehensive income is presented in the Condensed Consolidated Statements of Comprehensive Income.

Recent Accounting Pronouncements

Recently Issued Accounting Standards not yet adopted

In November 2021, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2021-10, Government Assistance (Topic 832): Disclosures by Business Entities about Government Assistance. This ASU requires business entities to make annual disclosures about transactions with a government they account for by analogizing to a grant or contribution accounting model under ASC 958-605. The ASU is effective for all entities within their scope for

financial statements issued for annual periods beginning after December 15, 2021. The Company does not expect the adoption of this guidance will have a material impact on its consolidated financial position, results of operations or cash flows.

In August 2020, the FASB issued ASU No. 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity, which, among other things, provides guidance on how to account for contracts on an entity’s own equity. This ASU simplifies the accounting for certain financial instruments with characteristics of liabilities and equity. Specifically, the ASU eliminated the need for the Company to assess whether a contract on the entity’s own equity (1) permits settlement in unregistered shares, (2) whether counterparty rights rank higher than shareholder’s rights, and (3) whether collateral is required. In addition, the ASU requires incremental disclosure related to contracts on the entity’s own equity and clarifies the treatment of certain financial instruments accounted for under this ASU on earnings per share. For public business entities, the ASU is effective for fiscal years beginning after December 15, 2021, and interim periods within those fiscal years. The Company does not expect the adoption of this guidance will have a material impact on its consolidated financial position, results of operations or cash flows.

Recently Adopted Accounting Standards

11

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

In January 2020, the FASB issued ASU No. 2020-01, “Investments - Equity Securities (Topic 321), Investments - Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815) - Clarifying the Interactions between Topic 321, Topic 323, and Topic 815.” The ASU is based on a consensus of the Emerging Issues Task Force and is expected to increase comparability in accounting for these transactions. ASU 2016-01 made targeted improvements to accounting for financial instruments, including providing an entity the ability to measure certain equity securities without a readily determinable fair value at cost, less any impairment, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer. Among other topics, the amendments clarify that an entity should consider observable transactions that require it to either apply or discontinue the equity method of accounting. The adoption of ASU 2020-01 had no material impact on the Company's Consolidated Financial Statements.

In December 2019, the FASB issued ASU No. 2019-12 “Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes ("ASU 2019-12") by removing certain exceptions to the general principles. The Company adopted ASU 2019-12 as of July 1, 2021. ASU 2019-12 had no material impact on the Company's Consolidated Financial Statements.

12

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

2. Equity Method Investment in Equity Investee

On December 1, 2021 (the “Effective Date”), Alpha & Omega Semiconductor (Shanghai) Ltd. (“AOS SH”) and Agape Package Manufacturing (Shanghai) Limited (“APM SH” and, together with AOS SH, the “Sellers”), each a wholly-owned subsidiary of the Company, entered into a share transfer agreement ("STA") with a third-party investor to sell a portion of the Company's equity interest in the JV Company which consists of a power semiconductor packaging, testing and 12-inch wafer fabrication facility in Chongqing, China (the “Transaction”). The Transaction closed on December 2, 2021 (the “Closing Date”), which reduced the Company’s equity interest in the JV Company from 50.9% to 48.8%. Also, the Company’s right to designate directors on the board of JV Company was reduced to three (3) out of seven (7) directors, from four (4) directors prior to the Transaction. As a result of the Transaction and other factors, the Company no longer has a controlling financial interest in the JV Company and has determined that the JV Company was deconsolidated from the Company’s Consolidated Financial Statements effective as of the Closing Date. In connection with the deconsolidation and in accordance with ASC 810-10-40-5, the Company recorded a gain on deconsolidation of nil and $399.1 million during the three and nine months ended March 31, 2022 in the Condensed Consolidated Statements of Income. The gain on deconsolidation of the JV Company was calculated as follows:

	(in thousands)
Cash received for sales of shares in the JV Company	$	16,924
Fair value of retained equity method investment	393,124
Carrying amount of non-controlling interest	143,889
Cumulative translation adjustment removal	1,793
Carrying amount of net assets of the JV Company at December 1, 2021	(156,637)
Gain on deconsolidation of the JV Company	$	399,093

The Company retained significant influence over the operating and financial policies of the JV Company and measured the fair value of the retained investment based on their share of the fair value of the JV Company, which was calculated using the market approach based on the Transaction.

On December 24, 2021, the Company entered into a share transfer agreement with another third-party investor, pursuant to which the Company sold to this investor 1.1% of outstanding equity interest held by the Company in the JV Company. In addition, the JV Company adopted an employee equity incentive plan and issued an equity interest equivalent to 3.99% of the JV Company in exchange to cash. As a result of these two transactions, the Company owned 45.8% of the equity interest in the JV Company as of December 31, 2021.

On January 26, 2022, the JV Company completed a financing transaction pursuant to a corporate investment agreement (the “Investment Agreement”) between the JV and certain third-party investors (the “New Investors”). Under the Investment Agreement, the New Investors purchased newly issued equity interest of JV, representing approximately 7.82% of post-transaction outstanding equity interests of the JV, for a total purchase price of RMB 509 million (or approximately USD 80 million based on the currency exchange rate as of January 26, 2022) (the “Investment”). Following the closing of the Investment and as of March 31, 2022, the percentage of outstanding JV equity interest beneficially owned by the Company was reduced to 42.2%.

13

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

The Company recorded the gain of $4.5 million on changes on equity interest of the JV Company during the three months ended March 31, 2022 and the loss of $3.1 million on changes on equity interest of the JV Company during the nine months of March 31, 2022. The net loss associated with these sales of JV Company equity interest held by the Company were recorded in the nine months ended March 31, 2022 as follows:

	(in thousands)
Gain on 1.1% equity interest sold	$	475
Loss on diluted equity interest from issuance of shares under the employee equity incentive plan	(8,116)
Gain on 7.82% equity interest sold	4,501
Loss on changes on equity interest of the JV Company, net	$	(3,140)

The Company accounts for its investment in the JV Company as an equity method investment and reports its equity in earnings or loss of the JV Company on a three-month lag due to an inability to timely obtain financial information of the JV Company. During the three and nine months ended March 31, 2022, the Company recorded $1.1 million of its equity in loss of the JV Company, using lag reporting.

14

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

3. Related Party Transactions

As of March 31, 2022, the Company owned 42.2% equity interest in the JV Company, which, by definition, is a related party to the Company. The JV Company supplies 12-inch wafers and provides assembly and testing services to AOS. AOS also sells 8-inch wafers to the JV Company for further assembly and testing services. Due to the right of offset of receivables and payables with the JV Company, as of March 31, 2022, AOS recorded the net amount of $15.2 million presented as other payable, equity investee, in the Condensed Consolidated Balance Sheet. Since the December 2, 2021 deconsolidation of the JV Company, the purchases by AOS for the three and nine months ended March 31, 2022 were $45.8 million and $61.4 million respectively, and the sales by AOS for the three and nine months ended March 31, 2022 were $14.2 million and $18.4 million, respectively.

15

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

4. Net Income Per Common Share Attributable to Alpha and Omega Semiconductor Limited

The following table presents the calculation of basic and diluted net income per share attributable to common shareholders:

	Three Months Ended March 31,				Nine Months Ended March 31,
	2022		2021		2022		2021
	(in thousands, except per share data)
Numerator:
Net income attributable to Alpha and Omega Semiconductor Limited	$	31,650	$	16,100	$	438,072	$	38,577
Denominator:
Basic:
Weighted average number of common shares used to compute basic net income per share	26,829		25,882		26,596		25,631
Diluted:
Weighted average number of common shares used to compute basic net income per share	26,829		25,882		26,596		25,631
Effect of potentially dilutive securities:
Stock options, RSUs and ESPP shares	1,594		1,834		1,520		1,497
Weighted average number of common shares used to compute diluted net income per share	28,423		27,716		28,116		27,128
Net income per share attributable to Alpha and Omega Semiconductor Limited:
Basic	$	1.18	$	0.62	$	16.47	$	1.51
Diluted	$	1.11	$	0.58	$	15.58	$	1.42

The following potential dilutive securities were excluded from the computation of diluted net income per share as their effect would have been anti-dilutive:

	Three Months Ended March 31,		Nine Months Ended March 31,
	2022	2021	2022	2021
	(in thousands)		(in thousands)
Employee stock options and RSUs	2	107	171	80
ESPP	19	—	27	89
Total potential dilutive securities	21	107	198	169

16

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

5. Concentration of Credit Risk and Significant Customers

The Company manages its credit risk associated with exposure to distributors and direct customers on outstanding accounts receivable through the application and review of credit approvals, credit ratings and other monitoring procedures. In some instances, the Company also obtains letters of credit from certain customers.

Credit sales, which are mainly on credit terms of 30 to 60 days, are only made to customers who meet the Company's credit requirements, while sales to new customers or customers with low credit ratings are usually made on an advance payment basis. The Company considers its trade accounts receivable to be of good credit quality because its key distributors and direct customers have long-standing business relationships with the Company and the Company has not experienced any significant bad debt write-offs of accounts receivable in the past. The Company closely monitors the aging of accounts receivable from its distributors and direct customers, and regularly reviews their financial positions, where available.

Summarized below are individual customers whose revenue or accounts receivable balances were 10% or higher than the respective total consolidated amounts:

	Three Months Ended March 31,				Nine Months Ended March 31,
Percentage of revenue	2022		2021		2022		2021
Customer A	24.2	%	30.2	%	24.8	%	29.1	%
Customer B	38.8	%	35.2	%	38.7	%	34.9	%

	March 31, 2022		June 30, 2021
Percentage of accounts receivable
Customer A	21.2	%	12.4	%
Customer B	20.4	%	22.1	%
Customer C	13.7	%	21.9	%
Customer D	12.8	%	*
Customer E	15.0	%	*

*Less than 10%

17

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

6. Balance Sheet Components

The Company’s audited consolidated balance sheet at June 30, 2021, as reported, included the JV Company’s assets and liabilities, after intercompany eliminations. However, the JV Company's assets and liabilities were not included in the Company’s unaudited Condensed Consolidated Balance Sheet at March 31, 2022 due to the deconsolidation of the JV Company on December 2, 2021 as discussed in more detail in Note 1 above.

Accounts receivable, net:

	March 31, 2022		June 30, 2021
	(in thousands)
Accounts receivable	$	52,362	$	48,234
Less: Allowance for price adjustments	(13,125)		(12,415)
Less: Allowance for doubtful accounts	(30)		(30)
Accounts receivable, net	$	39,207	$	35,789

Inventories:

	March 31, 2022		June 30, 2021
	(in thousands)
Raw materials	$	54,435	$	68,900
Work in-process	67,132		68,824
Finished goods	21,971		16,569
	$	143,538	$	154,293

Other current assets:

	March 31, 2022		June 30, 2021
	(in thousands)
VAT receivable	$	550	$	1,539
Other prepaid expenses	4,098		1,465
Prepaid insurance	1,291		2,615
Prepaid maintenance	774		1,670
Prepayment to supplier	1,295		2,540
Prepaid income tax	3,052		2,221
Interest receivable	—		2,207
Customs deposit	—		270
Other receivables	638		68
	$	11,698	$	14,595

18

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Property, plant and equipment, net:

	March 31, 2022		June 30, 2021
	(in thousands)
Land	$	4,877	$	4,877
Building	15,867		71,454
Manufacturing machinery and equipment	266,135		515,320
Equipment and tooling	26,113		27,017
Computer equipment and software	35,199		41,518
Office furniture and equipment	2,778		3,814
Leasehold improvements	35,226		74,733
Land use rights	—		9,319
	386,195		748,052
Less: accumulated depreciation	(228,437)		(348,749)
	157,758		399,303
Equipment and construction in progress	88,012		37,674
Property, plant and equipment, net	$	245,770	$	436,977

Intangible assets, net:

	March 31, 2022		June 30, 2021
	(in thousands)
Patents and technology rights	$	18,037	$	18,037
Trade name	268		268
Customer relationships	1,150		1,150
	19,455		19,455
Less: accumulated amortization	(8,834)		(6,314)
	10,621		13,141
Goodwill	269		269
Intangible assets, net	$	10,890	$	13,410

Estimated future minimum amortization expense of intangible assets is as follows (in thousands):

Year ending June 30,
2022 (Remaining)	$	840
2023	3,286
2024	3,249
2025	3,246
	$	10,621

19

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Other long-term assets:

	March 31, 2022		June 30, 2021
	(in thousands)
Prepayments for property and equipment	$	18,500	$	14,882
Investment in a privately held company	100		100
Customs deposit	1,824		1,120
Deposit with supplier	6,396		—
Other long-term deposits	20		927
Office leases deposits	964		1,100
Other	1,661		740
	$	29,465	$	18,869

Accrued liabilities:

	March 31, 2022		June 30, 2021
	(in thousands)
Accrued compensation and benefits	$	25,550	$	32,756
Warranty accrual	2,483		2,795
Stock rotation accrual	4,207		3,917
Accrued professional fees	3,009		3,017
Accrued inventory	1,150		1,138
Accrued facilities related expenses	2,689		2,536
Accrued property, plant and equipment	8,664		8,688
Other accrued expenses	5,864		6,793
Customer deposit	35,111		7,139
ESPP payable	2,606		715
	$	91,333	$	69,494

The activities in the warranty accrual, included in accrued liabilities, are as follows:

	Nine Months Ended March 31,
	2022		2021
	(in thousands)
Beginning balance	$	2,795	$	709
Additions	949		338
Utilization	(1,261)		(211)
Ending balance	$	2,483	$	836

20

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

The activities in the stock rotation accrual, included in accrued liabilities, are as follows:

	Nine Months Ended March 31,
	2022		2021
	(in thousands)
Beginning balance	$	3,917	$	3,358
Additions	3,030		4,498
Utilization	(2,740)		(3,771)
Ending balance	$	4,207	$	4,085

Other long-term liabilities:

	March 31, 2022		June 30, 2021
	(in thousands)
Deferred payroll taxes	$	—	$	1,219
Customer deposits	72,384		42,000
Other	—		904
Other long-term liabilities	$	72,384	$	44,123

Customer deposits are payments received from customers for securing future product shipments. As of March 31, 2022, $62.4 million were from Customer A and Customer B, and $10.0 million were from other customers. As of June 30, 2021, $42.0 million were from Customer A and Customer B.

21

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

7. Bank Borrowings

Short-term borrowings

In October 2019, the Company's subsidiary in China entered into a line of credit facility with Bank of Communications Limited in China. This line of credit matures on February 14, 2021 and is based on the China Base Rate multiplied by 1.05, or 4.99% on October 31, 2019. The purpose of the credit facility is to provide short-term borrowings. The Company could borrow up to approximately RMB 60.0 million or $8.5 million based on the currency exchange rate between the RMB and the U.S. Dollar on October 31, 2019. In September 2021, this line of credit was renewed with maximum borrowings up to RMB 140.0 million with the same terms and a maturity date of September 18, 2022. During the three months ended December 31, 2021, the Company borrowed RMB 11.0 million, or $1.7 million, at an interest rate of 3.85% per annum, with principal due on November 18, 2022. As of March 31, 2022, the total outstanding balance of this loan was $1.7 million.

On November 16, 2018, the Company's subsidiary in China entered into a line of credit facility with Industrial and Commercial Bank of China. The purpose of the credit facility was to provide short-term borrowings. The Company could borrow up to approximately RMB 72.0 million or $10.3 million based on currency exchange rate between RMB and U.S. Dollar on November 16, 2018. The RMB 72.0 million consists of RMB 27.0 million for trade borrowings with a maturity date of December 31, 2021, and RMB 45.0 million for working capital borrowings or trade borrowings with a maturity date of September 13, 2022. During the three months ended December 31, 2021, the Company borrowed RMB 5.0 million, or $0.8 million, at an interest rate of 3.7% per annum, with principal due on September 12, 2022. As of March 31, 2022, the total outstanding balance of this loan was $0.6 million.

Accounts Receivable Factoring Agreement

On August 9, 2019, one of the Company's wholly-owned subsidiaries (the “Borrower”) entered into a factoring agreement with the Hongkong and Shanghai Banking Corporation Limited (“HSBC”), whereby the Borrower assigns certain of its accounts receivable with recourse. This factoring agreement allows the Borrower to borrow up to 70% of the net amount of its eligible accounts receivable of the Borrower with a maximum amount of $30.0 million. The interest rate is based on one month London Interbank Offered Rate (“LIBOR”) plus 1.75% per annum. The Company is the guarantor for this agreement. The Company is accounting for this transaction as a secured borrowing under the Transfers and Servicing of Financial Assets guidance. In addition, any cash held in the restricted bank account controlled by HSBC has a legal right of offset against the borrowing. This agreement, with certain financial covenants required, has no expiration date. On August 11, 2021, the Borrower signed an agreement with HSBC to decrease the borrowing maximum amount to $8.0 million with certain financial covenants required. Other terms remain the same. As of March 31, 2022, the Borrower was in compliance with these covenants. As of March 31, 2022, there was no outstanding balance and the Company had unused credit of approximately $8.0 million.

Long-term debt

On August 18, 2021, Jireh Semiconductor Incorporated (“Jireh”) entered into a term loan agreement with a financial institution (the "Bank") in an amount up to $45.0 million for the purpose of expanding and upgrading the Company’s fabrication facility located in Oregon. The obligation under the loan agreement is secured by substantially all assets of Jireh and guaranteed by the Company. The agreement has a 5.5 year term and matures on February 16, 2027. Jireh is required to make consecutive quarterly payments of principal and interest. The loan accrues interest based on adjusted LIBOR plus the applicable margin based on the outstanding balance of the loan. This agreement contains customary restrictive covenants and includes certain financial covenants that the Company is required to maintain. Jireh drew down $45.0 million on February 16, 2022. As of March 31, 2022, Jireh was in compliance with these covenants and the outstanding balance of this loan was $45.0 million.

On May 1, 2018, Jireh entered into a loan agreement with the Bank that provided a term loan in the amount of $17.8 million. The obligation under the loan agreement is secured by certain real estate assets of Jireh and guaranteed by the Company.  The loan has a five-year term and matures on June 1, 2023. Beginning June 1, 2018, Jireh made consecutive monthly payments of principal and interest to the Bank. The outstanding principal accrues interest at a fixed rate of 5.04% per annum on the basis of a 360-day year. The loan agreement contains customary restrictive covenants and includes certain financial covenants that require the Company to maintain, on a consolidated basis, specified financial ratios. In August 2021, Jireh signed an amendment of this loan with the Bank to modify the financial covenants requirement to align with the new term loan agreement entered into on August 18, 2021 discussed above. The amendment was accounted for as a debt modification and no gain or loss was recognized. The Company was in compliance with these covenants as of March 31, 2022. As of March 31, 2022, the outstanding balance of the term loan was $14.4 million.

22

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

On August 15, 2017, Jireh entered into a credit agreement with the Bank that provided a term loan in an amount up to $30.0 million for the purpose of purchasing certain equipment for the Company’s fabrication facility located in Oregon.  The obligation under the credit agreement is secured by substantially all assets of Jireh and guaranteed by the Company.  The credit agreement has a five-year term and matures on August 15, 2022. In January 2018 and July 2018, Jireh drew down the loan in the amount of $13.2 million and $16.7 million, respectively. Beginning in October 2018, Jireh is required to pay to the Bank on each payment date, the outstanding principal amount of the loan in monthly installments.  The loan accrues interest based on an adjusted LIBOR as defined in the credit agreement, plus a specified applicable margin in the range of 1.75% to 2.25%, based on the outstanding balance of the loan.  The credit agreement contains customary restrictive covenants and includes certain financial covenants that require the Company to maintain, on a consolidated basis, specified financial ratios and fixed charge coverage ratio. In August 2021, Jireh signed an amendment of this loan with the Bank to modify the financial covenants requirement to align with the new term loan agreement entered into on August 18, 2021, discussed above. The amendment was accounted for as a debt modification and no gain or loss was recognized. The Company was in compliance with these covenants as of March 31, 2022. As of March 31, 2022, the outstanding balance of the term loan was $3.7 million.

Maturities of short-term debt and long-term debt were as follows (in thousands):

Year ending June 30,
2022 (Remaining)					$	2,085
2023					25,067
2024					9,000
2025					9,000
2026					9,000
Thereafter					11,250
Total principal					65,402
Less: debt issuance costs					(183)
Total principal, less debt issuance costs					$	65,219
	Short-term Debt		Long-term Debt		Total
Principal amount	$	11,403	$	53,999	$	65,402
Less: debt issuance costs	(71)		(112)		(183)
Total debt, less debt issuance costs	$	11,332	$	53,887	$	65,219

23

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

8. Leases

The Company evaluates contracts for lease accounting at contract inception and assesses lease classification at the lease commencement date. Operating leases are included in operating lease right-of-use (“ROU”) assets, operating lease liabilities and operating lease liabilities - long-term on the Company's Condensed Consolidated Balance Sheets. Finance leases are included in property, plant and equipment, finance lease liabilities and finance lease liabilities-long-term on the Condensed Consolidated Balance Sheets. The Company recognizes a ROU asset and corresponding lease obligation liability at the lease commencement date where the lease obligation liability is measured at the present value of the minimum lease payments. As most of the leases do not provide an implicit rate, the Company uses its incremental borrowing rate at lease commencement. The Company uses an interest rate commensurate with the interest rate to borrow on a collateralized basis over a similar term with an amount equal to the lease payments. Operating leases are primarily related to offices, research and development facilities, sales and marketing facilities, and manufacturing facilities. In addition, long-term supply agreements to lease gas tank equipment and purchase industrial gases are accounted for as operating leases. Lease agreements frequently include renewal provisions and require the Company to pay real estate taxes, insurance and maintenance costs. For operating leases, the amortization of the ROU asset and the accretion of its lease obligation liability result in a single straight-line expense recognized over the lease term. The finance lease is related to the $4.8 million of a machinery lease financing with a vendor. In addition, the finance lease related to the RMB 400.0 million of lease financing of the JV Company with YinHai Leasing Company and The Export-Import Bank of China was not included in the Company’s unaudited Condensed Consolidated Balance Sheet at March 31, 2022 due to the deconsolidation of the JV Company on December 2, 2021. The Company does not record leases on the Condensed Consolidated Balance Sheets with a term of one year or less.

The Company’s unaudited Condensed Consolidated Statements of Income for the three and nine months ended March 31, 2022 include the JV Company's results for the period through December 1, 2021, the day immediately preceding the deconsolidation. The components of the Company’s operating and finance lease expenses are as follows for the periods presented (in thousands):

	Nine Months Ended March 31,
	2022		2021
Operating leases:
Fixed rent expense	$	4,955	$	5,089
Variable rent expense	741		599
Finance lease:
Amortization of equipment	787		1,682
Interest	692		1,699
Short-term leases
Short-term lease expenses	144		164
Total lease expenses	$	7,319	$	9,233

24

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Supplemental balance sheets information related to the Company’s operating and finance leases is as follows (in thousands, except lease term and discount rate):

	March 31, 2022			June 30, 2021
Operating Leases:
ROU assets associated with operating leases	$	24,971		$	34,660
Finance Lease:
Property, plant and equipment, gross	$	4,831		$	114,404
Accumulated depreciation	(15)			(96,470)
Property, plant and equipment, net	$	4,816		$	17,934
Weighted average remaining lease term (in years)
Operating leases	7.48			8.44
Finance lease	4.96			1.72
Weighted average discount rate
Operating leases	4.24		%	4.67		%
Finance lease	4.50		%	5.46		%

Supplemental cash flow information related to the Company’s operating and finance lease is as follows (in thousands):

	Nine Months Ended March 31,
	2022		2021
Cash paid from amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	4,965	$	4,721
Operating cash flows from finance lease	$	421	$	1,699
Financing cash flows from finance lease	$	4,176	$	12,267
Non-cash investing and financing information:
Operating lease right-of-use assets obtained in exchange for lease obligations	$	5,901	$	2,843

Future minimum lease payments are as follows as of March 31, 2022 (in thousands):

Year ending June 30,	Operating Leases		Finance Leases
The remainder of fiscal 2022	$	1,550	$	163
2023	5,382		1,074
2024	4,123		1,083
2025	3,254		1,083
2026	3,207		1,083
Thereafter	13,658		754
Total minimum lease payments	31,174		5,240
Less amount representing interest	(4,751)		(544)
Total lease liabilities	$	26,423	$	4,696

25

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

9. Shareholders' Equity and Share-based Compensation

Share Repurchase

In September 2017, the Board of Directors approved a repurchase program (the “Repurchase Program”) that allowed the Company to repurchase its common shares from the open market pursuant to a pre-established Rule 10b5-1 trading plan or through privately negotiated transactions up to an aggregate of $30.0 million. The amount and timing of any repurchases under the Repurchase Program depend on a number of factors, including but not limited to, the trading price, volume and availability of the Company’s common shares. Shares repurchased under this program are accounted for as treasury shares and the total cost of shares repurchased is recorded as a reduction of shareholders' equity. From time to time, treasury shares may be reissued as part of the Company’s share-based compensation programs. Gains on re-issuance of treasury stock are credited to additional paid-in capital; losses are charged to additional paid-in capital to offset the net gains, if any, from previous sales or re-issuance of treasury stock. Any remaining balance of the losses is charged to retained earnings.

During the nine months ended March 31, 2022, the Company did not repurchase any shares pursuant to the Repurchase Program. Since the inception of the program, the Company repurchased an aggregate of 6,784,648 shares for a total cost of $67.3 million, at an average price of $9.92 per share, excluding fees and related expenses.  No repurchased shares have been retired. Of the 6,784,648 repurchased shares, 166,645 shares with a weighted average repurchase price of $10.07 per share, were reissued at an average price of $5.02 per share pursuant to option exercises and vested restricted share units (“RSU”). As of March 31, 2022, approximately $13.4 million remained available under the Repurchase Program.

Time-based Restricted Stock Units (“TRSU”)

The following table summarizes the Company's TRSU activities for the nine months ended March 31, 2022:

	Number of Restricted Stock Units	Weighted Average Grant Date Fair Value Per Share		Weighted Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value
Nonvested at June 30, 2021	1,053,524	$	21.60	1.73	$	32,016,594
Granted	563,681	$	46.10
Vested	(380,029)	$	20.01
Forfeited	(46,251)	$	23.14
Nonvested at March 31, 2022	1,190,925	$	33.64	1.92	$	65,084,051

Market-based Restricted Stock Units (“MSU”)

In December 2021, the Company granted 1.0 million market-based restricted stock units ("MSUs") to its certain personnel. The number of shares to be earned at the end of performance period is determined based on the Company’s achievement of specified stock prices and revenue thresholds during the performance period from January 1, 2022 to December 31, 2024 as well as the recipients remaining in continuous service with the Company through such period. The MSU vests in four equal annual installments after the end of performance period. The Company estimated the grant date fair values of its MSU with derived service periods of 4.1 to 7.1 years using a Monte-Carlo simulation model with the following assumptions: Risk-free interest rate of 1.0%, expected term of 3.1 years, expected volatility of 62.8% and dividend yield of 0%. The Company recorded approximately $2.0 million and $2.5 million of expenses for these MSUs during the three and nine months ended March 31, 2022, respectively.

During the quarter ended September 30, 2018, the Company granted 1.3 million MSUs to certain personnel. The number of shares to be earned at the end of performance period is determined based on the Company’s achievement of specified stock prices and revenue thresholds during the performance period from January 1, 2019 to December 31, 2021 as well as the recipients remaining in continuous service with the Company through such period. The MSUs vest in four equal annual installments after the end of the performance period. The Company estimated the grant date fair values of its MSUs using a Monte-Carlo simulation model. On August 31, 2020, the Compensation Committee of the Board approved a modification of the terms of MSU to (i) extend the performance period through December 31, 2022 and (ii) change the commencement date for the four-year time-based service period to January 1, 2023. The fair value of these MSUs was recalculated to reflect the change as of August 31, 2020 and the unrecognized compensation amount was adjusted to reflect the increase in fair value. The Company recorded approximately $0.4 million and

26

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

$1.2 million of expenses for MSUs during the three and nine months ended March 31, 2022, respectively, and approximately $0.3 million and $0.9 million during the three and the nine months ended March 31, 2021, respectively.

Performance-based Restricted Stock Units (“PRSUs”)

In March each year since year 2017, the Company granted PRSUs to certain personnel. The number of shares to be earned under the PRSUs is determined based on the level of attainment of predetermined financial goals. The PRSUs vest in four equal annual installments from the first anniversary date after the grant date if certain predetermined financial goals were met. The Company recorded approximately $1.0 million and $3.0 million of expense for these PRSUs during the three and nine months ended March 31, 2022, respectively and approximately $0.5 million and $1.3 million during the three and nine months ended March 31, 2021.

During the three months ended June 30, 2019, the Company announced an incentive program. Under this program, each participant’s award is denominated in stock and subject to achievement of certain objective goals within certain timelines. In June 2020, the Company believed it was most likely that predetermined goal measures would be met. Therefore, the Company reported such expenses in the other current liabilities line on the Condensed Consolidated Balance Sheets as the amount of bonus is to be settled in variable number of RSU’s at the completion of the objective goals. Such non-cash compensation expense was recorded as part of share-based compensation expense in the Condensed Consolidated Statements of Income. As of March 31, 2022 and June 30, 2021, the Company recorded nil and $0.1 million such expenses in the other current liabilities, respectively. The Company recorded nil and $0.3 million such non-cash compensation expense during the three and nine months ended March 31, 2022, respectively, and $0.8 million and $2.2 million during the three and nine months ended March 31, 2021, respectively. As of March 31, 2022, the Company granted RSUs valued at $4.0 million to participants, which were fully vested due to achievement of certain objective measures.

The following table summarizes the Company’s PRSUs activities for the nine months ended March 31, 2022:

	Number of Performance-based Restricted Stock Units	Weighted Average Grant Date Fair Value Per Share		Weighted Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value
Nonvested at June 30, 2021	353,824	$	22.69	1.74	$	10,752,711
Granted	194,000	$	48.65
Vested	(151,199)	$	19.44
Forfeited	(1,000)	$	16.22
Nonvested at March 31, 2022	395,625	$	36.68	2.11	$	21,620,906

Stock Options

The Company did not grant any stock options during the three and nine months ended March 31, 2022 and 2021. The following table summarizes the Company's stock option activities for the nine months ended March 31, 2022:

				Weighted
		Weighted		Average
		Average		Remaining
	Number of	Exercise Price		Contractual	Aggregate
	Shares	Per Share		Term (in years)	Intrinsic Value
Outstanding at June 30, 2021	487,875	$	7.99	2.32	$	10,928,653
Exercised	(93,000)	$	9.24
Outstanding at March 31, 2022	394,875	$	7.70	1.78	$	18,541,050
Options vested and expected to vest	394,875	$	7.70	1.78	$	18,541,050
Exercisable at March 31, 2022	394,875	$	7.70	1.78	$	18,541,050

27

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Employee Share Purchase Plan (“ESPP”)

The assumptions used to estimate the fair values of common shares issued under the ESPP were as follows:

	Nine Months End March 31,
	2022
Volatility rate	66.4%
Risk-free interest rate	0.3%
Expected term	1.3 years
Dividend yield	0%

Share-based Compensation Expense

The total share-based compensation expense recognized in the Condensed Consolidated Statements of Income for the periods presented was as follows:

	Three Months Ended March 31,				Nine Months Ended March 31,
	2022		2021		2022		2021
	(in thousands)				(in thousands)
Cost of goods sold	$	1,282	$	427	$	3,560	$	1,195
Research and development	1,814		1,316		4,769		3,639
Selling, general and administrative	5,177		2,082		13,125		5,091
	$	8,273	$	3,825	$	21,454	$	9,925

As of March 31, 2022, total unrecognized compensation cost under the Company's equity plans was $86.2 million, which is expected to be recognized over a weighted-average period of 3.5 years.

10. Income Taxes

The Company recognized income tax expense of approximately $2.9 million and $1.0 million for the three months ended March 31, 2022 and 2021, respectively. The income tax expense of $2.9 million for the three months ended March 31, 2022 included a $0.7 million discrete tax expense related to the Company’s $4.5 million of gain related to the revaluation of the Company’s equity interest in a joint venture. The income tax expense of $1.0 million for the three months ended March 31, 2021 included immaterial discrete tax. Excluding the $4.5 million revaluation gain and the $0.7 million of discrete income tax items, the effective tax rate for the three months ended March 31, 2022 and 2021 was 7.4% and 6.3%, respectively. The changes in the tax expense and effective tax rate between the periods resulted primarily from the Company reporting pretax book income of $34.5 million ($30.0 million of pretax book income excluding the $4.5 million of gain related to the revaluation of the Company’s equity interest in a joint venture) for the three months ended March 31, 2022 as compared to a pretax book income of $16.0 million for the three months ended March 31, 2021 as well as changes in the mix of earnings in various geographic jurisdictions between the current year and the same period of last year.

The Company recognized income tax expense of approximately $38.3 million and $2.7 million for the nine months ended March 31, 2022 and 2021, respectively. The income tax expense of $38.3 million for the nine months ended March 31, 2022 included a $33.5 million discrete tax expense related to the Company’s $396.0 million of income from the sale of equity interest in a joint venture and the related deconsolidation gain as the Company switches from the consolidation method of accounting to the equity method of accounting related to this investment and no longer asserts permanent reinvestment related to the Company’s investment in the joint venture as well as $0.1 million of other discrete income tax items. The income tax expense of $2.7 million for the nine months ended March 31, 2021 included a $0.04 million discrete tax benefit. Excluding the discrete income tax items ($396.0 million of income from the sale of equity interest in a joint venture and the related deconsolidation gain as well as other discrete items), the effective tax rate for the nine months ended March 31, 2022 and 2021 was 6.0% and 7.0%, respectively. The changes in the tax expense and effective tax rate between the periods resulted primarily from the Company reporting pretax book income of $476.4 million ($80.4 million of pretax book income excluding the $396.0 million of income from the sale of equity interest in a joint venture and the related deconsolidation gain) for the nine months ended March 31, 2022 as compared to a pretax book income of $39.0 million for the nine months ended March 31, 2021 as well as changes in the mix of earnings in various geographic jurisdictions between the current year and the same period of last year.

28

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

The Company files its income tax returns in the United States and in various foreign jurisdictions. The tax years 2001 to 2021 remain open to examination by U.S. federal and state tax authorities. The tax years 2013 to 2021 remain open to examination by foreign tax authorities.

The Company's income tax returns are subject to examinations by the Internal Revenue Service and other tax authorities in various jurisdictions. In accordance with the guidance on the accounting for uncertainty in income taxes, the Company regularly assesses the likelihood of adverse outcomes resulting from these examinations to determine the adequacy of its provision for income taxes. These assessments can require considerable estimates and judgments. As of March 31, 2022, the gross amount of unrecognized tax benefits was approximately $7.8 million, of which $4.8 million, if recognized, would reduce the effective income tax rate in future periods. If the Company's estimate of income tax liabilities proves to be less than the ultimate assessment, then a further charge to expense would be required. If events occur and the payment of these amounts ultimately proves to be unnecessary, the reversal of the liabilities would result in tax benefits being recognized in the period when the Company determines the liabilities are no longer necessary. The Company does not anticipate any material changes to its uncertain tax positions during the next twelve months.

“U.S. Consolidated Appropriations Act, 2021” (“CAA 2021”), Enacted December 27, 2020

On December 27, 2020, the United States enacted the Consolidated Appropriations Act, 2021, which made changes to existing U.S. tax laws. There was no material impact of the tax law changes included in the Consolidated Appropriations Act, 2021 to the Company.

“The American Rescue Plan Act of 2021”, Enacted March 11, 2021

On March 11, 2021, the United States enacted the American Rescue Plan Act of 2021, which made changes to existing U.S. tax laws. There was no material impact of the tax law changes included in the American Rescue Plan Act of 2021 to the Company.

On July 27, 2015, in Altera Corp. v. Commissioner, the U.S. Tax Court issued an opinion related to the treatment of stock-based compensation expense in an intercompany cost-sharing arrangement. In the July 2015 ruling, the Tax Court concluded that the sharing of the cost of employee stock compensation in a company’s cost-sharing arrangement was invalid under the U.S. Administrative Procedures Act. In June 2019, a panel of the Ninth Circuit of the U.S. Court of Appeals reversed this decision. In July 2019, Altera petitioned U.S. Court of Appeals for the Ninth Circuit to hold an en banc rehearing of the case. The petition was subsequently denied by the Ninth Circuit. Altera appealed the case to the U.S. Supreme Court in February 2020, but the U.S. Supreme Court declined to hear the case in June 2020, leaving intact the U.S. Court of Appeals for the Ninth Circuit’s decision. AOS has not recorded any benefit related to the Altera Corporation Tax Court decision in any period through March 2022. The Company will continue to monitor ongoing developments and potential impact to its financial statements

29

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

11. Segment and Geographic Information

The Company is organized as, and operates in, one operating segment: the design, development and supply of power semiconductor products for computing, consumer electronics, communication and industrial applications. The chief operating decision-maker is the Chief Executive Officer. The financial information presented to the Company’s Chief Executive Officer is on a consolidated basis, accompanied by information about revenue by customer and geographic region, for purposes of evaluating financial performance and allocating resources. The Company has one business segment, and there are no segment managers who are held accountable for operations, operating results and plans for products or components below the consolidated unit level. Accordingly, the Company reports as a single operating segment.

The Company sells its products primarily to distributors in the Asia Pacific region, who in turn sell these products to end customers. Because the Company’s distributors sell their products to end customers which may have a global presence, revenue by geographical location is not necessarily representative of the geographical distribution of sales to end user markets.

The revenue by geographical location in the following tables is based on the country or region in which the products were shipped to:

	Three Months Ended March 31,				Nine Months Ended March 31,
	2022		2021		2022		2021
	(in thousands)				(in thousands)
Hong Kong	$	164,555	$	139,167	$	472,399	$	396,879
China	31,883		28,110		91,958		74,250
South Korea	2,745		473		8,862		4,069
United States	3,534		1,088		9,004		3,683
Other countries	522		374		1,370		712
	$	203,239	$	169,212	$	583,593	$	479,593

During the three months ended March 31, 2022, the Company corrected an immaterial error to reduce revenues in Hong Kong by $0.5 million, and to increase the revenues in China and South Korea by $0.1 million and $0.4 million, respectively, for the three months ended March 31, 2021. During the nine months ended March 31, 2022, the Company corrected an immaterial error to reduce revenues in Hong Kong by $3.9 million, as well as to increase the revenues in China and South Korea by $0.2 million and $3.7 million, respectively, for the nine months ended March 31, 2021.

The following is a summary of revenue by product type:

	Three Months Ended March 31,				Nine Months Ended March 31,
	2022		2021		2022		2021
	(in thousands)				(in thousands)
Power discrete	$	140,572	$	122,615	$	406,235	$	355,487
Power IC	60,359		43,385		167,782		115,224
Packaging and testing services	2,308		3,212		9,576		8,882
	$	203,239	$	169,212	$	583,593	$	479,593

30

ALPHA AND OMEGA SEMICONDUCTOR LIMITED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Long-lived assets, net consisting of property, plant and equipment and land use rights, net, as well as operating lease right-of-use assets, net by geographical area are as follows:

	March 31, 2022		June 30, 2021
	(in thousands)
China	$	96,679	$	350,387
United States	170,213		118,756
Other countries	3,849		2,494
	$	270,741	$	471,637

12. Commitments and Contingencies

Purchase Commitments

As of March 31, 2022 and June 30, 2021, the Company had approximately $106.6 million and $81.8 million, respectively, of outstanding purchase commitments primarily for purchases of semiconductor raw materials, wafers, spare parts, packaging and testing services and others.

As of March 31, 2022 and June 30, 2021, the Company had approximately $102.7 million and $90.0 million, respectively, of capital commitments for the purchase of property and equipment.

Other Commitments

        See Note 7 and Note 8 of the Notes to the Condensed Consolidated Financial Statements contained in this Quarterly Report on Form 10-Q for descriptions of commitments including bank borrowings and leases.

Contingencies and Indemnities

The Company has in the past, and may from time to time in the future, become involved in legal proceedings arising from the normal course of business activities.  The semiconductor industry is characterized by frequent claims and litigation, including claims regarding patent and other intellectual property rights as well as improper hiring practices. Irrespective of the validity of such claims, the Company could incur significant costs in the defense of such claims and suffer adverse effects on its operations.

In December 2019, the U.S. Department of Justice (“DOJ”) commenced an investigation into the Company's compliance with export control regulations relating to its business transactions with Huawei and its affiliates (“Huawei”), which were added to the “Entity List” maintained by the Department of Commerce (“DOC”) on May 16, 2019.  The Company is cooperating fully with federal authorities in the investigation, including responding to requests for documents, information and interviews from DOJ in connection with the investigation. The Company has maintained an export control compliance program and has been committed to comply fully with all applicable laws and regulations.  In connection with this investigation, DOC requested the Company to suspend shipments of its products to Huawei, and the Company complied with such request, and the Company has not shipped any product to Huawei after December 31, 2019.  The Company is currently working with DOC to resolve this issue.  Given the case is in still ongoing and neither DOJ nor DOC have provided the Company with any clear indication of the timing and schedule for the investigation, the Company cannot estimate the reasonably possible loss or range of loss that may occur.  Also, the Company is unable to predict the duration, scope, result or related costs of the investigation, although the Company expects to incur additional professional fees as a result of this matter.  In addition, the Company is unable to predict what, if any, further action that may be taken by the government in connection with the investigation, or what, if any, penalties, sanctions or remedial actions may be sought.

The Company is a party to a variety of agreements that it has contracted with various third parties. Pursuant to these agreements, the Company may be obligated to indemnify another party to such an agreement with respect to certain matters. Typically, these obligations arise in the context of contracts entered into by the Company, under which the Company customarily agrees to hold the other party harmless against losses arising from a breach of representations and covenants related to such matters as title to assets sold, certain intellectual property rights, specified environmental matters and certain income taxes. In these circumstances, payment by the Company is customarily conditioned on the other party making a claim pursuant

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ALPHA AND OMEGA SEMICONDUCTOR LIMITED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

to the procedures specified in the particular contract, which procedures typically allow the Company to challenge the other party's claim. Further, the Company's obligations under these agreements may be limited in time and/or amount, and in some instances, the Company may have recourse against third parties for certain payments made by it under these agreements. The Company has not historically paid or recorded any material indemnifications, and no accrual was made at March 31, 2022 and June 30, 2021.

The Company has agreed to indemnify its directors and certain employees as permitted by law and pursuant to its Bye-laws, and has entered into indemnification agreements with its directors and executive officers. The Company has not recorded a liability associated with these indemnification arrangements, as it historically has not incurred any material costs associated with such indemnification obligations. Costs associated with such indemnification obligations may be mitigated by insurance coverage that the Company maintains. However, such insurance may not cover any, or may cover only a portion of, the amounts the Company may be required to pay. In addition, the Company may not be able to acquire, maintain or renew such insurance coverage in the future under favorable terms or at all.

13. Cybersecurity Incident

In April 2022, the Company became aware of a cybersecurity incident involving unauthorized access to one email account at the Company, which caused the Company to make payments to unauthorized bank accounts. As a result, the Company recorded a loss of $1.5 million due to the incident for the three months ended March 31, 2022. The financial impact of this incident is not material, and the Company expects there will be no changes to previously released financial results or financial statements. Immediately following the discovery, the Company commenced an investigation, contained the incident and implemented additional protective measures and internal control policies and procedures. The Company has also retained a leading professional cybersecurity investigation firm to conduct a full forensic analysis of the incident, and expects to take further protective measures as warranted. The Company has alerted law enforcement authorities and banking institutions in an effort to recover the lost amount. While this incident appears to be isolated and its financial impact identified to date is not material, we cannot be certain that we have not incurred other damages and losses until a full investigation is concluded.

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ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Except for the historical information contained herein, the matters addressed in this Item 2 constitute “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. These forward looking statements include, but are not limited to, statements regarding future financial performance of the Company; the expected ramp up timeline of the 12-inch fab at the JV Company; the impact of government investigation and coronavirus on our financial performance; and other statements and information set forth under the heading “Factors Affecting Our Performance”. Such forward-looking statements are subject to a variety of risks and uncertainties, including those discussed below under the heading “Risk Factors” and elsewhere in this Quarterly Report on Form 10-Q, that could cause actual results to differ materially from those anticipated by the Company’s management. The Private Securities Litigation Reform Act of 1995 (the “Act”) provides certain “safe harbor” provisions for forward-looking statements. All forward-looking statements made in this Quarterly Report on Form 10-Q are made pursuant to the Act. The Company undertakes no obligation to publicly release the results of any revisions to its forward-looking statements that may be made to reflect events or circumstances after the date hereof or to reflect the occurrence of unexpected events. Unless the context otherwise requires, the words “AOS,” the “Company,” “we,” “us” and “our” refer to Alpha and Omega Semiconductor Limited and its subsidiaries.

This management’s discussion should be read in conjunction with the management’s discussion included in the Company’s Annual Report on Form 10-K for the fiscal year ended June 30, 2021, filed with the Securities and Exchange Commission on August 30, 2021.

Overview

We are a designer, developer and global supplier of a broad portfolio of power semiconductors. Our portfolio of power semiconductors includes approximately 2,400 products, and has grown significantly with the introduction of over 160 new products in each of the fiscal years ended June 30, 2021 and 2020, respectively, and 200 new products in the fiscal year ended June 30, 2019. During the nine months ended March 31, 2022, we introduced an additional 116 new products. Our teams of scientists and engineers have developed extensive intellectual property and technical knowledge that encompass major aspects of power semiconductors, which we believe enables us to introduce and develop innovative products to address the increasingly complex power requirements of advanced electronics. We have an extensive patent portfolio that consists of 883 patents and 55 patent applications in the United States as of March 31, 2022. We also have a total of 927 foreign patents, which were based primarily on our research and development efforts through March 31, 2022. We differentiate ourselves by integrating our expertise in technology, design and advanced manufacturing and packaging to optimize product performance and cost. Our portfolio of products targets high-volume applications, including personal and portable computers, graphic cards, flat panel TVs, home appliances, smart phones, battery packs, game consoles, consumer and industrial motor controls and power supplies for TVs, computers, servers and telecommunications equipment.

Our business model leverages global resources, including research and development and manufacturing in the United States and Asia. Our sales and technical support teams are localized in several growing markets. We operate an 8-inch wafer fabrication facility located in Hillsboro, Oregon, or the Oregon fab, which is critical for us to accelerate proprietary technology development, new product introduction and improve our financial performance. To meet the market demand for the more mature high volume products, we also utilize the wafer manufacturing capacity of selected third party foundries. For assembly and test, we primarily rely upon our in-house facilities in China. In addition, we utilize subcontracting partners for industry standard packages. We believe our in-house packaging and testing capability provides us with a competitive advantage in proprietary packaging technology, product quality, cost and sales cycle time.

During the fiscal quarter ended March 31, 2022, we continued our product diversification program by developing new silicon and packaging platforms to expand our serviceable available market, or SAM and offer higher performance products. Our metal-oxide-semiconductor field-effect transistors, or MOSFET, and power IC product portfolio expanded significantly. Our high performance products and deepened customer relationships with our OEM and ODM customers have contributed to the achievement of our record high quarterly revenue of $203.2 million for the three months ended March 31, 2022, a 20.1% growth compared to the same quarter last year.

On March 29, 2016, we formed a joint venture (the “JV Company”) with two investment funds owned by the Municipality of Chongqing (the “Chongqing Funds”), for the purpose of constructing and operating a power semiconductor packaging, testing and 12-inch wafer fabrication facility (“Fab”) in the LiangJiang New Area of Chongqing, China. The Fab is being built in phases.  As of December 1, 2021, we owned 50.9%, and the Chongqing Funds owned 49.1% of the equity interest in the JV Company. The Joint Venture was accounted under the provisions of the consolidation guidance since we had controlling financial interest until December 1, 2021.

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Effective December 1, 2021, we entered into a share transfer agreement (the “STA”) with a third-party investor (the “Investor”), pursuant to which we sold to the Investor approximately 2.1% of outstanding equity interest held by us in the JV Company for an aggregate purchase price of RMB 108 million or approximately $16.9 million (the “Transaction”). The STA contained customary representations, warranties and covenants. The Transaction was closed on December 2, 2021 (the “Closing Date”). As a result of the Transaction, as of the Closing Date, our equity interest in the JV Company decreased from 50.9% to 48.8%. Also, our right to designate directors on the board of JV Company was reduced to three (3) out of seven (7) directors, from four (4) directors prior to the Transaction. As of December 2, 2021, we no longer have a controlling financial interest in the JV Company under generally accepted accounting principles. Loss of control is deemed to have occurred when, among other things, a parent company owns less than a majority of the outstanding common stock in the subsidiary, lacks a controlling financial interest in the subsidiary and, is unable to unilaterally control the subsidiary through other means such as having, or the ability to obtain or represent, a majority of the subsidiary’s Board of Directors. All of these loss of control factors were present for us as of December 2, 2021. Accordingly, since December 2, 2021, we have deconsolidated the JV Company in our Consolidated Financial Statements and accounted for our investment in the JV Company using the equity method of accounting.

On December 24, 2021, we entered into a share transfer agreement with another third-party investor, pursuant to which we sold to this investor 1.1% of outstanding equity interest held by us in the JV Company for an aggregate purchase price of RMB 60 million or approximately $9.4 million based on the currency exchange rate as of December 24, 2021. In addition, the JV Company adopted an employee equity incentive plan and issued an equity interest equivalent to 3.99% of the JV Company to exchange in cash. As a result, we owned 45.8% of the equity interest in the JV Company as of December 31, 2021.

On January 26, 2022, the JV Company completed a financing transaction pursuant to a corporate financing agreement (the “Financing Agreement”) between the JV Company and certain third-party investors (the “New Investors”). Under the Financing Agreement, the New Investors purchased newly issued equity interest of JV for a total purchase price of RMB 509 million (or approximately $80 million based on the currency exchange rate as of January 26, 2022) (the “Investment”). Following the closing of the Investment, the percentage of outstanding JV equity interest beneficially owned by the Company was reduced to 42.2%.

We reduced our ownership of the JV Company to below 50% to increase the flexibility of the JV Company to raise capital to fund its future expansion. Following the Transaction and the successful ramp up to its Phase I target run rate in the September quarter of 2021, as planned, the JV Company intends to raise up to $200 million, including the $80 million funding on January 26, 2022, through private funding rounds for its Phase II expansion. In addition to immediate private funding rounds, the JV Company is also contemplating an eventual listing on the Science and Technology innovAtion boaRd, or STAR Market, of the Shanghai Stock Exchange. The Transaction assists the JV Company in meeting certain regulatory listing requirements. A potential STAR Market listing may take several years to consummate and there is no guarantee that such listing by the JV Company will be successful or will be completed in a timely manner, or at all. In addition, the JV Company will continue to provide us with significant level of foundry capacity to enable us to develop and manufacture our products.

Impact of COVID-19 Pandemic to our Business

Our business operations have been impacted by the global COVID-19 pandemic and the resulting economic downturn. Numerous governmental jurisdictions, including the States of California, Oregon and Texas in the U.S. and countries throughout the Asia Pacific region have imposed various restrictions on commercial activities, resulting in business closures, work stoppages, labor shortage, disruptions to ports, vaccine mandates and other shipping infrastructure, border closures, thereby negatively impacting our customers, suppliers, distributors, employees, offices, and the entire semiconductor ecosystem.

As a result of the COVID-19 pandemic and changing consumer behaviors due to various government restrictions and the growing trend to provide remote-working options by employers, , we have experienced shifting market trends, including an increasing demand in markets for notebooks, PCs, gaming devices and other products. While we have benefited from the increasing demand for PC related products, there is no guarantee that this trend will continue, and such increasing demand may discontinue or decline if government authorities relax or terminate COVID-19 related restrictions and consumer behaviors change in response to the reopening of certain economic activities. In an effort to protect the health and safety of our employees and to comply with various government and regulatory guidelines, we also took proactive actions to adopt policies and protocols at our locations around the world, including social distancing guidelines, vaccine and testing protocols,

Since the start of the second quarter of calendar year 2021, there have been increasing availability and administration of vaccines against COVID-19, as well as an easing of restrictions on social, business, travel, and government activities and functions, and a gradual resumption of economic activities and consumer spending in our industries. However, infection rates continued to fluctuate in various regions and new strains of the virus remain a risk, including a surge of COVID-19 cases and hospitalization due to the spread of Omicron variants in late 2021 and early 2022. During the first calendar quarter of 2022,

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COVID-19 cases and hospitalization rate continued to decline and governments in various jurisdictions, including the U.S. and Europe, have lifted various restrictions and limitations on economic activities. However, there are ongoing global impacts resulting from the pandemic, including disruption of the product supply chains, shortages of semiconductor components, and delays in shipments, product development, and product launches and rising inflation rates.

In April 2022, the operations of our two packaging and testing facilities in Shanghai, China were suspended due to a strict lockdown of the city imposed by the local government in response to surging COVID cases. Our facilities in Shanghai were required to shut down and production was halted beginning in mid-April. Transportation suspension in and out of Shanghai also interrupted the shipping of raw materials and finished parts to and from our facilities. We have been working closely with factory management to separate non-infected employees from infected employees, perform regular COVID-19 testing, and secure food, water, and other necessary supplies to support employees who have been affected. In addition, we have been working with local authorities to obtain permission to reopen the facilities, and as of the date of this Form 10-Q, we have received permission to reopen our facilities partially under a “closed-loop” arrangement. Under this arrangement, some of our employees are allowed to live and work on the premises. However, the pace at which we can resume full operations remains challenging due to difficulties in bringing back our workforce to the facilities, procuring certain raw materials and resolving logistical bottlenecks, and we also expect to incur additional costs to implement and maintain public health safety measures and protocols at our factories as required by the Shanghai authorities. Currently we intend to gradually ramp up production at these facilities in May and return to normal operation in June 2022, assuming no additional restriction and lockdown are imposed by the government. Furthermore, while we seek to secure alternative sources of packaging capacity from third-party providers to mitigate the loss of in-house packaging capacity, there is no guarantee that such sources are available. Even if alternative sources are available, it will be difficult to complete the transition to a new supplier efficiently and timely, and we currently do not expect to secure sufficient third-party sources to substitute or replace fully our in-house packaging and testing capacity. The suspension of our Shanghai facilities, and the subsequent partial resumption of production, reduces our ability to complete orders from our customers in a timely manner, or at all, which is expected to adversely affect our revenue and results of operation for the three months ending June 30, 2022. It is uncertain how long the Shanghai government intends to impose a shutdown, and even when lifted, the government may reimpose strict zero-positive-case requirements and lockdown. It is not possible to predict at this time the ultimate duration of these restrictions or the impact on financial results in the near-term.

The full extent of the longer-term impact of the COVID-19 pandemic on our operational and financial performance is uncertain and will depend on many factors outside our control, including, without limitation, the timing, extent, trajectory and duration of the pandemic; the availability, distribution and effectiveness of vaccines; the spread of new variants of COVID-19; the continued and renewed imposition of protective public safety measures, including local and regional lockdown and quarantines; the disruption of global supply chain; and the impact of the pandemic on the global economy and demand for consumer products. Although we are unable to predict the full impact and duration of the COVID-19 pandemic on our business, we are actively managing our business operations and financial expenditures in response to continued uncertainty.

Other Factors affecting our performance

In addition to the COVID-19 pandemic and related events as described above, our performance is affected by several key factors, including the following:

The global, regional economic and PC market conditions: Because our products primarily serve consumer electronic applications, any significant change in global and regional economic conditions could materially affect our revenue and results of operations. A significant amount of our revenue is derived from sales of products in the personal computing (“PC”) markets, such as notebooks, motherboards and notebook battery packs, therefore a substantial decline or downturn in the PC market could have a material adverse effect on our revenue and results of operations. The PC markets have experienced a modest global decline in recent years due to continued growth of demand in tablets and smart phones, worldwide economic conditions and the industry inventory correction which had and may continue to have a material impact on the demand for our products. However, we recently have experienced a significant increase of demand in PC market due to the impact of the COVID-19 pandemic and resulting shift in market trend and consumer behaviors. We cannot predict whether and how long this trend will continue due to the uncertainty and unpredictability of COVID-19 pandemic. A decline of the PC market may have a negative impact on our revenue, factory utilization, gross margin, our ability to resell excess inventory, and other performance measures. We have executed and continue to execute strategies to diversify our product portfolio, penetrate other market segments, including the consumer, communications and industrial markets, and improve gross margins and profit by implementing cost control measures. While making efforts to reduce our reliance on the computing market, we continue to support our computing business and capitalize on the opportunities in this market with a more focused and competitive PC product strategy to gain market share.

Manufacturing costs and capacity availability:  Our gross margin is affected by a number of factors including our manufacturing costs, utilization of our manufacturing facilities, the product mixes of our sales, pricing of wafers from third party foundries and pricing of semiconductor raw materials. Capacity utilization affects our gross margin because we have

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certain fixed costs at our Shanghai facilities and our Oregon fab. If we are unable to utilize our manufacturing facilities at a desired level, our gross margin may be adversely affected. In addition, from time to time, we may experience wafer capacity constraints, particularly at third party foundries, that may prevent us from meeting fully the demand of our customers. For example, the recent global shortage of semiconductor manufacturing capacity has provided us with both challenges and opportunities in the market, and highlighted the importance of maintaining sufficient and independent in-house manufacturing capabilities to meet increasing customer demands. While we can mitigate these constraints by increasing and re-allocating capacity at our own fab, we may not be able to do so quickly or at sufficient level, which could adversely affect our financial conditions and results of operations. In addition, we recently commenced a plan to enhance the manufacturing capability and capacity of our Oregon fab by investing in new equipment and expanding our factory facilities, which we expect will have a positive impact on our future new product development and revenue, particularly during the period of global shortage of capacity. We also rely substantially on the JV Company to provide foundry capacity to manufacture our products, therefore it is critical that we maintain continuous access to such capacity, which may not be available at sufficient level or at a pricing terms favorable to us because of lack of control over the JV Company’s operation. As a result of sales of our JV equity interests and issuance of additional equity interests by the JV Company to third-party investors in financing transactions, our equity interest in the JV Company was reduced to 42.2%, which reduced our control and influence over the JV Company. While we continue to maintain a business relationship with the JV Company to ensure uninterrupted supply of manufacturing capacity, and we are currently negotiating a foundry agreement for the JV Company to provide guarantee level of capacity, the JV Company may take actions or make decisions that adversely impact our ability to access required capacity, and our lack of control and influence may prevent us from eliminating or mitigating such risk.

Erosion and fluctuation of average selling price: Erosion of average selling prices of established products is typical in our industry. Consistent with this historical trend, we expect our average selling prices of existing products to decline in the future. However, in the normal course of business, we seek to offset the effect of declining average selling price by introducing new and higher value products, expanding existing products for new applications and new customers and reducing the manufacturing cost of existing products. These strategies may cause the average selling price of our products to fluctuate significantly from time to time, thereby affecting our financial performance and profitability.

Product introductions and customers’ product requirements: Our success depends on our ability to introduce products on a timely basis that meet or are compatible with our customers' specifications and performance requirements. Both factors, timeliness of product introductions and conformance to customers' requirements, are equally important in securing design wins with our customers. As we accelerate the development of new technology platforms, we expect to increase the pace at which we introduce new products and seek and acquire design wins. If we were to fail to introduce new products on a timely basis that meet customers’ specifications and performance requirements, particularly those products with major OEM customers, and continue to expand our serviceable markets, then we would lose market share and our financial performance would be adversely affected.

Distributor ordering patterns, customer demand and seasonality: Our distributors place purchase orders with us based on their forecasts of end customer demand, and this demand may vary significantly depending on the sales outlook and market and economic conditions of end customers. Because these forecasts may not be accurate, channel inventory held at our distributors may fluctuate significantly, which in turn may prompt distributors to make significant adjustments to their purchase orders placed with us. As a result, our revenue and operating results may fluctuate significantly from quarter to quarter. In addition, because our products are used in consumer electronics products, our revenue is subject to seasonality. Our sales seasonality is affected by numerous factors, including global and regional economic conditions as well as the PC market conditions, revenue generated from new products, changes in distributor ordering patterns in response to channel inventory adjustments and end customer demand for our products and fluctuations in consumer purchase patterns prior to major holiday seasons. In recent periods, broad fluctuations in the semiconductor markets and the global and regional economic conditions, in particular the decline of the PC market conditions, have had a more significant impact on our results of operations than seasonality. Furthermore, our revenue may be impacted by the level of demand from our major customers due to factors outside of our control. If these major customers experience significant decline in the demand of their products, encounter difficulties or defects in their products, or otherwise fail to execute their sales and marketing strategies successfully, it may adversely affect our revenue and results of operations.

Principal line items of statements of income

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The following describes the principal line items set forth in our Condensed Consolidated Statements of Income:

Revenue

We generate revenue primarily from the sale of power semiconductors, consisting of power discretes and power ICs. Historically, a majority of our revenue has been derived from power discrete products. Because our products typically have three-year to five-year life cycles, the rate of new product introduction is an important driver of revenue growth over time. We believe that expanding the breadth of our product portfolio is important to our business prospects, because it provides us with an opportunity to increase our total bill-of-materials within an electronic system and to address the power requirements of additional electronic systems. In addition, a small percentage of our total revenue is generated by providing packaging and testing services to third parties through one of our subsidiaries.

Our product revenue is reported net of the effect of the estimated stock rotation returns and price adjustments that we expect to provide to our distributors. Stock rotation returns are governed by contract and are limited to a specified percentage of the monetary value of products purchased by the distributor during a specified period. At our discretion or upon our direct negotiations with the original design manufacturers (“ODMs”) or original equipment manufacturers (“OEMs”), we may elect to grant special pricing that is below the prices at which we sold our products to the distributors. In these situations, we will grant price adjustments to the distributors reflecting such special pricing. We estimate the price adjustments for inventory at the distributors based on factors such as distributor inventory levels, pre-approved future distributor selling prices, distributor margins and demand for our products.

Cost of goods sold

Our cost of goods sold primarily consists of costs associated with semiconductor wafers, packaging and testing, personnel, including share-based compensation expense, overhead attributable to manufacturing, operations and procurement, and costs associated with yield improvements, capacity utilization, warranty and valuation of inventories. As the volume of sales increases, we expect cost of goods sold to increase. While our utilization rates cannot be immune to the market conditions, our goal is to make them less vulnerable to market fluctuations. We believe our market diversification strategy and product growth will drive higher volume of manufacturing which will improve our factory utilization rates and gross margin in the long run.

Operating expenses

Our operating expenses consist of research and development, selling, general and administrative expenses and impairment of long-lived assets. We expect our operating expenses as a percentage of revenue to fluctuate from period to period as we continue to exercise cost control measures in response to the declining PC market as well as align our operating expenses to the revenue level.

Research and development expenses.  Our research and development expenses consist primarily of salaries, bonuses, benefits, share-based compensation expense, expenses associated with new product prototypes, travel expenses, fees for engineering services provided by outside contractors and consultants, amortization of software and design tools, depreciation of equipment and overhead costs. We continue to invest in developing new technologies and products utilizing our own fabrication and packaging facilities as it is critical to our long-term success. We also evaluate appropriate investment levels and stay focused on new product introductions to improve our competitiveness. We expect that our research and development expenses will fluctuate from time to time.

Selling, general and administrative expenses.  Our selling, general and administrative expenses consist primarily of salaries, bonuses, benefits, share-based compensation expense, product promotion costs, occupancy costs, travel expenses, expenses related to sales and marketing activities, amortization of software, depreciation of equipment, maintenance costs and other expenses for general and administrative functions as well as costs for outside professional services, including legal, audit and accounting services. We expect our selling, general and administrative expenses to fluctuate in the near future as we continue to exercise cost control measures.

Income tax expense

We are subject to income taxes in various jurisdictions. Significant judgment and estimates are required in determining our worldwide income tax expense. The calculation of tax liabilities involves dealing with uncertainties in the application of complex tax regulations of different jurisdictions globally. We establish accruals for potential liabilities and contingencies based on a more likely than not threshold to the recognition and de-recognition of uncertain tax positions. If the recognition threshold is met, the applicable accounting guidance permits us to recognize a tax benefit measured at the largest amount of tax benefit that is more likely than not to be realized upon settlement with a taxing authority. If the actual tax outcome of such

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exposures is different from the amounts that were initially recorded, the differences will impact the income tax and deferred tax provisions in the period in which such determination is made. Changes in the location of taxable income (loss) could result in significant changes in our income tax expense.

We record a valuation allowance against deferred tax assets if it is more likely than not that a portion of the deferred tax assets will not be realized, based on historical profitability and our estimate of future taxable income in a particular jurisdiction. Our judgments regarding future taxable income may change due to changes in market conditions, changes in tax laws, tax planning strategies or other factors. If our assumptions and consequently our estimates change in the future, the deferred tax assets may increase or decrease, resulting in corresponding changes in income tax expense. Our effective tax rate is highly dependent upon the geographic distribution of our worldwide profits or losses, the tax laws and regulations in each geographical region where we have operations, the availability of tax credits and carry-forwards and the effectiveness of our tax planning strategies.

U.S. Tax Cuts and Jobs Act, Enacted December 22, 2017

On December 22, 2017, the United States enacted tax reform legislation through the Tax Cuts and Jobs Act (“the Tax Act”), which significantly changes the existing U.S. tax laws, including, but not limited to, (1) a reduction in the corporate tax rate from 35% to 21%, (2) a shift from a worldwide tax system to a territorial system, (3) eliminating the corporate alternative minimum tax (AMT) and changing how existing AMT credits can be realized, (4) bonus depreciation that will allow for full expensing of qualified property, (5) creating a new limitation on deductible interest expense and (6) changing rules related to uses and limitations of net operating loss carryforwards created in tax years beginning after December 31, 2017.

The company is not currently subject to the Base Erosion and Anti-Abuse (BEAT) tax , which is a tax imposed on certain entities who make payments to their non US affiliates, where such payments reduce the US tax base . The BEAT tax is imposed at a rate of 10% on Adjusted Taxable Income, excluding certain payments to foreign related entities. It is an incremental tax over and above the corporate income tax and is recorded as a period cost. It is

possible that this tax could be applicable in future periods, which would cause an increase to the effective tax rate and cash taxes.

“U.S. Consolidated Appropriations Act, 2021” (“CAA 2021”), Enacted December 27, 2020

On December 27, 2020, the United States enacted the Consolidated Appropriations Act, 2021, which made changes to existing U.S. tax laws. There was no material impact of the tax law changes included in the Consolidated Appropriations Act, 2021 to the Company.

“The American Rescue Plan Act of 2021”, Enacted March 11, 2021

On March 11, 2021, the United States enacted the American Rescue Plan Act of 2021, which made changes to existing U.S. tax laws. There was no material impact of the tax law changes included in the American Rescue Plan Act of 2021 to the Company.

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Equity method investment gain/loss from equity investee

We use the equity method of accounting when we have the ability to exercise significant influence, but not control, as determined in accordance with general accepted accounting principles, over the operating and financial policies of the company. Effective December 2, 2021, we reduced our equity interest in the JV Company below 50% of outstanding equity ownership and experienced a loss of control of the JV Company. As a result, we record our investment under equity method of accounting. Since we are unable to obtain accurate financial information from the JV Company in a timely manner, we record our share of earnings or losses of such affiliate on a one quarter lag.

We record our interest in the net earnings of its equity method investees, along with adjustments for unrealized profits or losses on intra-entity transactions and amortization of basis differences, within earnings or loss from equity interests in the Consolidated Statements of Income. Profits or losses related to intra-entity sales with its equity method investees are eliminated until realized by the investor or investee. Basis differences represent differences between the cost of the investment and the underlying equity in net assets of the investment and are generally amortized over the lives of the related assets that gave rise to them. Equity method goodwill is not amortized or tested for impairment; instead the equity method investment is tested for impairment. We review for impairment whenever factors indicate that the carrying amount of the investment might not be recoverable. In such a case, the decrease in value is recognized in the period the impairment occurs in the Consolidated Statement of Operations.

Results of Operations

The following tables set forth statements of income, also expressed as a percentage of revenue, for the three and nine months ended March 31, 2022 and 2021. Our historical results of operations are not necessarily indicative of the results for any future period.

	Three Months Ended March 31,								Nine Months Ended March 31,
	2022		2021		2022		2021		2022		2021		2022		2021
	(in thousands)				(% of revenue)				(in thousands)				(% of revenue)
Revenue	$	203,239	$	169,212	100.0	%	100.0	%	$	583,593	$	479,593	100.0	%	100.0	%
Cost of goods sold	130,837		116,521		64.4	%	68.9	%	378,259		335,630		64.8	%	70.0	%
Gross profit	72,402		52,691		35.6	%	31.1	%	205,334		143,963		35.2	%	30.0	%
Operating expenses
Research and development	16,545		15,557		8.1	%	9.2	%	50,873		45,671		8.7	%	9.5	%
Selling, general and administrative	24,625		19,338		12.1	%	11.4	%	70,563		56,579		12.1	%	11.8	%
Total operating expenses	41,170		34,895		20.2	%	20.6	%	121,436		102,250		20.8	%	21.3	%
Operating income	31,232		17,796		15.4	%	10.5	%	83,898		41,713		14.4	%	8.7	%
Other income (loss), net	263		(253)		0.2	%	(0.1)	%	720		2,087		0.1	%	0.4	%
Interest income (expense), net	(308)		(1,562)		(0.2)	%	(1.1)	%	(3,025)		(4,832)		(0.5)	%	(1.0)	%
Gain on deconsolidation of the JV Company	—		—		—	%	—	%	399,093		—		68.4	%	—	%
Gain (loss) on changes of equity interest in the JV Company, net	4,501		—		2.2	%	—	%	(3,140)		—		(0.5)	%	—	%
Net income before income taxes	35,688		15,981		17.6	%	9.3	%	477,546		38,968		81.9	%	8.1	%
Income tax expense	2,902		1,014		1.4	%	0.6	%	38,318		2,694		6.6	%	0.6	%
Net income before loss from equity method investment	32,786		14,967		16.2	%	8.7	%	439,228		36,274		75.3	%	7.5	%
Equity method investment loss from equity investee	1,136		—		0.6	%	—	%	1,136		—		0.2	%	—	%
Net income	31,650		14,967		15.6	%	8.7	%	438,092		36,274		75.1	%	7.5	%
Net gain (loss) attributable to noncontrolling interest	—		(1,133)		—	%	(0.7)	%	20		(2,303)		—	%	(0.5)	%
Net income attributable to Alpha and Omega Semiconductor Limited	$	31,650	$	16,100	15.6	%	9.4	%	$	438,072	$	38,577	75.1	%	8.0	%

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Share-based compensation expense was recorded as follows:

	Three Months Ended March 31,								Nine Months Ended March 31,
	2022		2021		2022		2021		2022		2021		2022		2021
	(in thousands)				(% of revenue)				(in thousands)				(% of revenue)
Cost of goods sold	$	1,282	$	427	0.6	%	0.3	%	$	3,560	$	1,195	0.6	%	0.2	%
Research and development	1,814		1,316		0.9	%	0.8	%	4,769		3,639		0.8	%	0.8	%
Selling, general and administrative	5,177		2,082		2.5	%	1.2	%	13,125		5,091		2.2	%	1.1	%
Total	$	8,273	$	3,825	4.0	%	2.3	%	$	21,454	$	9,925	3.6	%	2.1	%

Three and Nine Months Ended March 31, 2022 and 2021

Revenue

The following is a summary of revenue by product type:

	Three Months Ended March 31,								Nine Months Ended March 31,
	2022		2021		Change				2022		2021		Change
	(in thousands)				(in thousands)		(in percentage)		(in thousands)				(in thousands)		(in percentage)
Power discrete	$	140,572	$	122,615	$	17,957	14.6	%	$	406,235	$	355,487	$	50,748	14.3	%
Power IC	60,359		43,385		16,974		39.1	%	167,782		115,224		52,558		45.6	%
Packaging and testing services	2,308		3,212		(904)		(28.1)	%	9,576		8,882		694		7.8	%
	$	203,239	$	169,212	$	34,027	20.1	%	$	583,593	$	479,593	$	104,000	21.7	%

Total revenue was $203.2 million for the three months ended March 31, 2022, an increase of $34.0 million, or 20.1%, as compared to $169.2 million for the same quarter last year. The increase was primarily due to an increase of $18.0 million and $17.0 million in sales of power discrete products and sales of power IC products, respectively. The increase in power discrete and power IC product sales was primarily due to an 24.1% increase in average selling price, offset by an 2.4% decrease in unit shipments as compared to same quarter last year due to a shift in product mix. The decrease in revenue of packaging and testing services for the three months ended March 31, 2022, as compared to same quarter last year, was primarily due to decreased demand.

Total revenue was $583.6 million for the nine months ended March 31, 2022 an increase of $104.0 million, or 21.7%, as compared to $479.6 million for the same period last year. The increase was primarily due to an increase of $50.7 million and $52.6 million in sales of power discrete products and sales of power IC products, respectively. The increase in power discrete and power IC product sales was primarily due to an 25.3% increase in average selling price, partially offset by a 2.9% decrease in unit shipments as compared to same period last year due to a shift in product mix. The increase in revenue of packaging and testing services for the nine months ended March 31, 2022, as compared to same period last year, was primarily due to increased demand.

Cost of goods sold and gross profit

	Three Months Ended March 31,										Nine Months Ended March 31,
	2022			2021			Change				2022			2021			Change
	(in thousands)						(in thousands)		(in percentage)		(in thousands)						(in thousands)		(in percentage)
Cost of goods sold	$	130,837		$	116,521		$	14,316	12.3	%	$	378,259		$	335,630		$	42,629	12.7	%
Percentage of revenue	64.4		%	68.9		%					64.8		%	70.0		%
Gross profit	$	72,402		$	52,691		$	19,711	37.4	%	$	205,334		$	143,963		$	61,371	42.6	%
Percentage of revenue	35.6		%	31.1		%					35.2		%	30.0		%

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Cost of goods sold was $130.8 million for the three months ended March 31, 2022, an increase of $14.3 million, or 12.3%, as compared to $116.5 million for the same quarter last year. The increase was primarily due to 20.1% increase in revenue. Gross margin increased by 4.5 percentage points to 35.6% for the three months ended March 31, 2022, as compared to 31.1% for the same quarter last year. The increase in gross margin was primarily due to better product mix during the three months ended March 31, 2022.

Cost of goods sold was $378.3 million for the nine months ended March 31, 2022, an increase of $42.6 million, or 12.7%, as compared to $335.6 million for the same period last year. The increase was primarily due to 21.7% increase in revenue. Gross margin increased by 5.2 percentage points to 35.2% for the nine months ended March 31, 2022, as compared to 30.0% for the same period last year. The increase in gross margin was primarily due to better product mix during the nine months ended March 31, 2022.

Research and development expenses

	Three Months Ended March 31,								Nine Months Ended March 31,
	2022		2021		Change				2022		2021		Change
	(in thousands)				(in thousands)		(in percentage)		(in thousands)				(in thousands)		(in percentage)
Research and development expenses	$	16,545	$	15,557	$	988	6.4	%	$	50,873	$	45,671	$	5,202	11.4	%

Research and development expenses were $16.5 million for the three months ended March 31, 2022, an increase of $1.0 million, or 6.4%, as compared to $15.6 million for the same quarter last year. The increase was primarily attributable to a $1.6 million increase in employee compensation and benefits expense mainly due to higher salary related expenses and higher bonuses accrual, a $0.5 million increase in share-based compensation expense due to an increase in stock awards granted and $0.3 million in allocation, partially offset by $1.3 million decrease in product prototyping engineering expense as a result of decreased engineering activities during the current quarter.

Research and development expenses were $50.9 million for the nine months ended March 31, 2022, an increase of $5.2 million, or 11.4%, as compared to $45.7 million for the same period last year. The increase was primarily attributable to a $4.8 million increase in employee compensation and benefits expense mainly due to higher salary related expenses and higher bonuses, a $1.1 million increase in share-based compensation expense due to an increase in stock awards granted, a $0.2 million increase in depreciation expense and $0.6 million in allocation, partially offset by a $1.7 million decrease in product prototyping engineering expense as a result of decreased engineering activities during the current period.

Selling, general and administrative expenses

	Three Months Ended March 31,								Nine Months Ended March 31,
	2022		2021		Change				2022		2021		Change
	(in thousands)				(in thousands)		(in percentage)		(in thousands)				(in thousands)		(in percentage)
Selling, general and administrative	$	24,625	$	19,338	$	5,287	27.3	%	$	70,563	$	56,579	$	13,984	24.7	%

Selling, general and administrative expenses were $24.6 million for the three months ended March 31, 2022, an increase of $5.3 million, or 27.3%, as compared to $19.3 million for the same quarter last year. The increase was primarily attributable to a $0.9 million increase in employee compensation and benefits expenses mainly due to higher salary related expenses, higher bonus expenses accrual and increased business insurance expenses, a $3.1 million increase in share-based compensation expense due to an increase in stock award granted, and a $1.5 million in loss of a cybersecurity incident, partially offset by a $0.4 million decrease in legal expense related to the government investigation during the current quarter.

Selling, general and administrative expenses were $70.6 million for the nine months ended March 31, 2022, an increase of $14.0 million, or 24.7%, as compared to $56.6 million for the same period last year. The increase was primarily attributable to a $7.0 million increase in employee compensation and benefits expenses mainly due to higher salary related expenses, higher bonus expenses and business insurance expenses, a $8.0 million increase in share-based compensation expense due to an increase in stock award granted as well as $1.5 million in loss of a cybersecurity incident, partially offset by a $1.8 million decrease in legal expenses related to the government investigation, a $0.3 million decrease in marketing demo and trade shows costs as a result of the COVID-19 pandemic, and a $0.4 million decrease in depreciation during the current period.

Other income (loss), net

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	Three Months Ended March 31,								Nine Months Ended March 31,
	2022		2021		Change				2022		2021		Change
	(in thousands)				(in thousands)		(in percentage)		(in thousands)				(in thousands)		(in percentage)
Other income (loss), net	$	263	$	(253)	$	516	(204.0)	%	$	720	$	2,087	$	(1,367)	(65.5)	%

Other income (loss), net increased by $0.5 million during the three months ended March 31, 2022 as compared to the same quarter last year was primarily due to decrease in foreign currency exchange loss as a result of the appreciation of RMB against USD.

Other income (loss), net decreased by $1.4 million during the nine months ended March 31, 2022 as compared to the same quarter last year was primarily due to increase in foreign currency exchange loss as a result of the depreciation of RMB against USD.

Interest income (expense), net

	Three Months Ended March 31,								Nine Months Ended March 31,
	2022		2021		Change				2022		2021		Change
	(in thousands)				(in thousands)		(in percentage)		(in thousands)				(in thousands)		(in percentage)
Interest income (expense), net	$	(308)	$	(1,562)	$	1,254	(80.3)	%	$	(3,025)	$	(4,832)	$	1,807	(37.4)	%

Interest income (expense), net decreased by $1.3 million during the three months ended March 31, 2022 as compared to the same quarter last year was primarily due to a $1.2 million decrease in interest expenses as a result of the JV Company being deconsolidated in December 2021.

Interest income (expense), net decreased by $1.8 million during the nine months ended March 31, 2022 as compared to the same period last year was primarily due to a $1.6 million decrease in interest expenses as a result of the JV Company being deconsolidated in December 2021.

Gain on deconsolidation of the JV Company and Gain/loss on changes of equity interest in the JV Company

Effective December 1, 2021, we entered into a share transfer agreement (the “STA”) with a third-party investor (the “Investor”), pursuant to which we sold to the Investor approximately 2.1% of outstanding equity interest held by us in the JV Company for an aggregate purchase price of RMB 108 million or approximately $16.9 million (the “Transaction”). The STA contained customary representations, warranties and covenants. The Transaction was closed on December 2, 2021 (the “Closing Date”). As a result of the Transaction, as of the Closing Date, our equity interest in the JV Company decreased from 50.9% to 48.8%, Also, our right to designate directors on the board of JV Company was reduced to three (3) out of seven (7) directors, from four (4) directors prior to the Transaction. We no longer have a controlling financial interest in the JV Company under generally accepted accounting principles. Loss of control is deemed to have occurred when, among other things, a parent company owns less than a majority of the outstanding common stock in the subsidiary, lacks a controlling financial interest in the subsidiary and, is unable to unilaterally control the subsidiary through other means such as having, or the ability to obtain, a majority of the subsidiary’s Board of Directors. All of these loss of control factors were present for us as of December 2, 2021. Accordingly, since December 2, 2021, AOS has accounted for its investment in the JV Company using the equity method of accounting. On December 24, 2021, we entered into a STA with another third-party investor, pursuant to which we sold to this investor 1.1% of outstanding equity interest held by us in the JV Company for an aggregate purchase price of RMB 60 million or approximately $9.4 million. In addition, the JV Company adopted an employee equity incentive plan and issued an equity interest equivalent to 3.99% of the JV Company to exchange in cash. As a result, the Company owned 45.8% of the equity interest in the JV Company as of December 31, 2021. On January 26, 2022, the JV Company completed a financing transaction pursuant to a corporate financing agreement (the “Financing Agreement”) between the JV Company and certain third-party investors (the “New Investors”). Under the Financing Agreement, the New Investors purchased newly issued equity interest of JV for a total purchase price of RMB 509 million (or approximately $80 million based on the currency exchange rate as of January 26, 2022) (the “Investment”). Following the closing of the Investment, the percentage of outstanding JV equity interest beneficially owned by us was reduced to 42.2%.

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During the nine months ended March 31, 2022, we recorded a $399.1 million of gain on deconsolidation of the JV Company. During the three and nine months ended March 31, 2022, we recorded a $4.5 million of gain on changes of equity interest in the JV Company and $3.1 million of loss on changes of equity interest in the JV Company.

We account for our investment in the JV Company as an equity method investment and reports its equity in earnings or loss of the JV Company on a three-month lag due to an inability to timely obtain financial information of the JV Company. During the three and nine months ended March 31, 2022, we recorded $1.1 million of its equity in loss of the JV Company, net of tax, using lag reporting.

Income tax expense

	Three Months Ended March 31,								Nine Months Ended March 31,
	2022		2021		Change				2022		2021		Change
	(in thousands)				(in thousands)		(in percentage)		(in thousands)				(in thousands)		(in percentage)
Income tax expense	$	2,902	$	1,014	$	1,888	186.2	%	$	38,318	$	2,694	$	35,624	1,322.3	%

The Company recognized income tax expense of approximately $2.9 million and $1.0 million for the three months ended March 31, 2022 and 2021, respectively. The income tax expense of $2.9 million for the three months ended March 31, 2022 included a $0.7 million discrete tax expense related to the Company’s $4.5 million of gain related to the revaluation of the Company’s equity interest in a joint venture. The income tax expense of $1.0 million for the three months ended March 31, 2021 included immaterial discrete tax. Excluding the $4.5 million revaluation gain and the $0.7 million of discrete income tax items, the effective tax rate for the three months ended March 31, 2022 and 2021 was 7.4% and 6.3%, respectively. The changes in the tax expense and effective tax rate between the periods resulted primarily from the Company reporting pretax book income of $34.5 million ($30.0 million of pretax book income excluding the $4.5 million of gain related to the revaluation of the Company’s equity interest in a joint venture) for the three months ended March 31, 2022 as compared to a pretax book income of $16.0 million for the three months ended March 31, 2021 as well as changes in the mix of earnings in various geographic jurisdictions between the current year and the same period of last year.

The Company recognized income tax expense of approximately $38.3 million and $2.7 million for the nine months ended March 31, 2022 and 2021, respectively. The income tax expense of $38.3 million for the nine months ended March 31, 2022 iincluded a $33.5 million discrete tax expense related to the Company’s $396.0 million of income from the sale of equity interest in a joint venture and the related deconsolidation gain as the Company switches from the consolidation method of accounting to the equity method of accounting related to this investment and no longer asserts permanent reinvestment related to the Company’s investment in the joint venture as well as $0.1 million of other discrete income tax items. The income tax expense of $2.7 million for the nine months ended March 31, 2021 included a $0.04 million discrete tax benefit. Excluding the discrete income tax items ($396.0 million of income from the sale of equity interest in a joint venture and the related deconsolidation gain as well as other discrete items), the effective tax rate for the nine months ended March 31, 2022 and 2021 was 6.0% and 7.0%, respectively. The changes in the tax expense and effective tax rate between the periods resulted primarily from the Company reporting pretax book income of $476.4 million ($80.4 million of pretax book income excluding the $396.0 million of income from the sale of equity interest in a joint venture and the related deconsolidation gain) for the nine months ended March 31, 2022 as compared to a pretax book income of $39.0 million for the nine months ended March 31, 2021 as well as changes in the mix of earnings in various geographic jurisdictions between the current year and the same period of last year.

The Company files its income tax returns in the United States and in various foreign jurisdictions. The tax years 2001 to 2021 remain open to examination by U.S. federal and state tax authorities. The tax years 2013 to 2021 remain open to examination by foreign tax authorities.

The Company's income tax returns are subject to examinations by the Internal Revenue Service and other tax authorities in various jurisdictions. In accordance with the guidance on the accounting for uncertainty in income taxes, the Company regularly assesses the likelihood of adverse outcomes resulting from these examinations to determine the adequacy of its provision for income taxes. These assessments can require considerable estimates and judgments. As of March 31, 2022, the gross amount of unrecognized tax benefits was approximately $7.8 million, of which $4.8 million, if recognized, would reduce the effective income tax rate in future periods. If the Company's estimate of income tax liabilities proves to be less than the ultimate assessment, then a further charge to expense would be required. If events occur and the payment of these amounts ultimately proves to be unnecessary, the reversal of the liabilities would result in tax benefits being recognized in the period when the Company determines the liabilities are no longer necessary. The Company does not anticipate any material changes to its uncertain tax positions during the next twelve months.

Liquidity and Capital Resources

43

Our principal need for liquidity and capital resources is to maintain sufficient working capital to support our operations and to invest adequate capital expenditures to grow our business. To date, we finance our operations and capital expenditures primarily through funds generated from operations and borrowings under our term loans, financing lease and other debt agreements.

On August 18, 2021, Jireh entered into a term loan agreement with a financial institution (the "Bank") in an amount up to $45.0 million for the purpose of expanding and upgrading the Company’s fabrication facility located in Oregon. The obligation under the loan agreement is secured by substantially all assets of Jireh and guaranteed by the Company. The agreement has a 5.5 year term and matures on February 16, 2027. Jireh is required to make consecutive quarterly payments of principal and interest. The loan accrues interest based on adjusted LIBOR plus the applicable margin based on the outstanding balance of the loan. This agreement contains customary restrictive covenants and includes certain financial covenants that the Company is required to maintain. Jireh drew down $45.0 million on February 16, 2022. As of March 31, 2022, there was $45.0 million outstanding balance under the loan.

On October 2019, the Company's subsidiary in China entered into a line of credit facility with Bank of Communications Limited in China. This line of credit matures on February 14, 2021 and is based on the China Base Rate multiplied by 1.05, or 4.99% on October 31, 2019. The purpose of the credit facility is to provide short-term borrowings. The Company could borrow up to approximately RMB 60.0 million or $8.5 million based on the currency exchange rate between the RMB and the U.S. Dollar on October 31, 2019. In September 2021, this line of credit was renewed with maximum borrowings up to RMB 140.0 million with the same terms and a maturity date of September 18, 2022. During the three months ended December 31, 2021, the Company borrowed RMB 11.0 million, or $1.7 million, at an interest rate of 3.85% per annum, with principal due on November 18, 2022. As of March 31, 2022, the total outstanding balance of this loan was $1.7 million.

On November 16, 2018, the Company's subsidiary in China entered into a line of credit facility with Industrial and Commercial Bank of China. The purpose of the credit facility was to provide short-term borrowings. The Company could borrow up to approximately RMB 72.0 million or $10.3 million based on currency exchange rate between RMB and U.S. Dollar on November 16, 2018. The RMB 72.0 million consists of RMB 27.0 million for trade borrowings with a maturity date of December 31, 2021, and RMB 45.0 million for working capital borrowings or trade borrowings with a maturity date of September 13, 2022. During the three months ended December 31, 2021, the Company borrowed RMB 5.0 million, or $0.8 million, at an interest rate of 3.7% per annum, with principal due on September 12, 2022. As of March 31, 2022, the total outstanding balance of this loan was $0.6 million.

On August 9, 2019, one of the Company's wholly-owned subsidiaries (the “Borrower”) entered into a factoring agreement with the Hongkong and Shanghai Banking Corporation Limited (“HSBC”), whereby the Borrower assigns certain of its accounts receivable with recourse. This factoring agreement allows the Borrower to borrow up to 70% of the net amount of its eligible accounts receivable of the Borrower with a maximum amount of $30.0 million. The interest rate is based on one month London Interbank Offered Rate (“LIBOR”) plus 1.75% per annum. The Company is the guarantor for this agreement. The Company is accounting for this transaction as a secured borrowing under the Transfers and Servicing of Financial Assets guidance. In addition, any cash held in the restricted bank account controlled by HSBC has a legal right of offset against the borrowing. This agreement, with certain financial covenants required, has no expiration date. On August 11, 2021, the Borrower signed an agreement with HSBC to decrease the borrowing maximum amount to $8.0 million with certain financial covenants required. Other terms remain the same. As of March 31, 2022, the Borrower was in compliance with these covenants. As of March 31, 2022, there was no outstanding balance and the Company had unused credit of approximately $8.0 million.

On May 1, 2018, Jireh entered into a loan agreement with the Bank that provided a term loan in the amount of $17.8 million. The obligation under the loan agreement is secured by certain real estate assets of Jireh and guaranteed by the Company.  The loan has a five-year term and matures on June 1, 2023. Beginning June 1, 2018, Jireh made consecutive monthly payments of principal and interest to the Bank. The outstanding principal accrues interest at a fixed rate of 5.04% per annum on the basis of a 360-day year. The loan agreement contains customary restrictive covenants and includes certain financial covenants that require the Company to maintain, on a consolidated basis, specified financial ratios. In August 2021, Jireh signed an amendment of this loan with the Bank to modify the financial covenants requirement to align with the new term loan agreement entered into on August 18, 2021 discussed above. The amendment was accounted for as a debt modification and no gain or loss was recognized. The Company was in compliance with these covenants as of March 31, 2022. As of March 31, 2022, the outstanding balance of the term loan was $14.4 million.

On August 15, 2017, Jireh entered into a credit agreement with the Bank that provided a term loan in an amount up to $30.0 million for the purpose of purchasing certain equipment for the Company’s fabrication facility located in Oregon.  The obligation under the credit agreement is secured by substantially all assets of Jireh and guaranteed by the Company.  The credit agreement has a five-year term and matures on August 15, 2022. In January 2018 and July 2018, Jireh drew down the loan in the amount of $13.2 million and $16.7 million, respectively. Beginning in October 2018, Jireh is required to pay to the Bank on each payment date, the outstanding principal amount of the loan in monthly installments.  The loan accrues interest based on an adjusted LIBOR as defined in the credit agreement, plus a specified applicable margin in the range of 1.75% to 2.25%, based on

44

the outstanding balance of the loan.  The credit agreement contains customary restrictive covenants and includes certain financial covenants that require the Company to maintain, on a consolidated basis, specified financial ratios and fixed charge coverage ratio. In August 2021, Jireh signed an amendment of this loan with the Bank to modify the financial covenants requirement to align with the new term loan agreement entered into on August 18, 2021 discussed above. The amendment was accounted for as a debt modification and no gain or loss was recognized. The Company was in compliance with these covenants as of March 31, 2022. As of March 31, 2022, the outstanding balance of the term loan was $3.7 million.

In September 2017, the Board of Directors approved a repurchase program (the “Repurchase Program”) that allowed us to repurchase our common shares from the open market pursuant to a pre-established Rule 10b5-1 trading plan or through privately negotiated transactions up to an aggregate of $30.0 million. The amount and timing of any repurchases under the Repurchase Program depend on a number of factors, including but not limited to, the trading price, volume and availability of our common shares. Shares repurchased under this program are accounted for as treasury shares and the total cost of shares repurchased is recorded as a reduction of shareholders’ equity. We did not repurchase any shares pursuant to the Repurchase Plan during the nine months ended March 31, 2022. Since the inception of the program, we repurchased an aggregate of 6,784,648 shares for a total cost of $67.3 million, at an average price of $9.92 per share, excluding fees and related expenses.  As of March 31, 2022, of the 6,784,648 repurchased shares, 166,645 shares with a weighted average repurchase price of $10.07 per share, were reissued at an average price of $5.02 per share pursuant to option exercises and vested restricted share units. We had $13.4 million remained available under the Repurchase Program as of March 31, 2022.

We believe that our current cash and cash equivalents and cash flows from operations will be sufficient to meet our anticipated cash needs, including working capital and capital expenditures, for at least the next twelve months. In the long-term, we may require additional capital due to changing business conditions or other future developments, including any investments or acquisitions we may decide to pursue. If our cash is insufficient to meet our needs, we may seek to raise capital through equity or debt financing. The sale of additional equity securities could result in dilution to our shareholders. The incurrence of indebtedness would result in increased debt service obligations and may include operating and financial covenants that would restrict our operations. We cannot be certain that any financing will be available in the amounts we need or on terms acceptable to us, if at all.

Cash, cash equivalents and restricted cash

As of March 31, 2022 and June 30, 2021, we had $323.4 million and $204.8 million of cash, cash equivalents and restricted cash, respectively. Our cash, cash equivalents and restricted cash primarily consist of cash on hand, restricted cash, and short-term bank deposits with original maturities of three months or less. Of the $323.4 million and $204.8 million cash, cash equivalents and restricted cash, $277.0 million and $134.6 million, respectively, are deposited with financial institutions outside the United States.

The following table shows our cash flows from operating, investing and financing activities for the periods indicated:

	Nine Months Ended March 31,
	2022		2021
	(in thousands)
Net cash provided by operating activities	$	193,196	$	84,524
Net cash used in investing activities	(91,142)		(40,412)
Net cash provided by (used in) financing activities	16,351		(16,323)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	152		3,982
Net increase in cash, cash equivalents and restricted cash	$	118,557	$	31,771

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Cash flows from operating activities

Net cash provided by operating activities of $193.2 million for the nine months ended March 31, 2022 resulted primarily from net income of $438.1 million and net changes in assets and liabilities using cash of $62.0 million, partially offset by non-cash expenses of $306.9 million. The non-cash expenses of $306.9 million primarily included $399.1 million of gain on deconsolidation of the JV Company, partially offset by $3.1 million of loss on changes of equity interest in the JV Company, $30.0 million of deferred income tax on deconsolidation and changes of equity interest in the JV Company, $34.3 million of depreciation and amortization expenses, $1.1 million of loss on equity investment, $21.5 million of share-based compensation expense, and $2.2 million of deferred income taxes. The net changes in assets and liabilities of $62.0 million were primarily due to a $65.1 million increase in accrued and other liabilities, a $3.5 million increase in income taxes payable on deconsolidation and changes of equity interest in the JV Company, a $15.6 million increase in accounts payable due to timing of payments, and a $34.4 million increase in other payable from equity investee, partially offset by a $3.6 million increase in accounts receivable as a result of timing of the shipments and payments collected, a $42.9 million increase in inventories as a result of our inventories built up for preparation of uncertainty of supply chains, a $10.1 million increase in other current and long-term assets due to increase in advance payments to vendors.

Net cash provided by operating activities of $84.5 million for the nine months ended March 31, 2021 resulted primarily from net income of $36.3 million and non-cash expenses of $50.1 million, partially offset by net changes in assets and liabilities using cash of $1.9 million. The non-cash expenses of $50.1 million primarily included $39.4 million of depreciation and amortization expenses, $9.9 million of share-based compensation expense and $0.7 million of deferred income taxes. The net changes in assets and liabilities of $1.9 million were primarily due to a $20.4 million increase in accounts receivable as a result of higher revenue, a $9.6 million increase in inventories due to a continued ramp of the JV Company, a $2.3 million increase in other current and long-term assets due to increase in advance payments to vendors, and a $0.2 million decrease in accounts payable due to timing of payments, partially offset by a $29.6 million increase in accrued and other liabilities and a $1.1 million increase in income taxes payable.

Cash flows from investing activities    

Net cash used in investing activities of $91.1 million for the nine months ended March 31, 2022 was primarily attributable to cash disposed upon deconsolidation of the JV Company of $20.7 million, purchases of property and equipment of $15.0 million for the JV Company, and purchases of property and equipment of $83.0 million for other than the JV Company, partially offset by proceeds from the sale of equity interest in the JV Company of $26.3 million and government grants related to fixed assets of $1.2 million.

Net cash used in investing activities of $40.4 million for the nine months ended March 31, 2021 was primarily attributable to $40.5 million purchases of property and equipment, including $15.6 million purchased by the JV Company.

Cash flows from financing activities

Net cash used in financing activities of $16.4 million for the nine months ended March 31, 2022 was primarily attributable to $59.3 million proceeds from borrowings, and $3.3 million of proceeds from exercise of stock options and ESPP, partially offset by $33.7 million in repayments of borrowings, $4.2 million in payment of finance lease obligations, and $8.4 million in common shares acquired to settle withholding tax related to vesting of restricted stock units.

Net cash used in financing activities of $16.3 million for the nine months ended March 31, 2021 was primarily attributable to $44.1 million in repayments of borrowings, $12.3 million in payment of finance lease obligations, and $6.2 million in common shares acquired to settle withholding tax related to vesting of restricted stock units, partially offset by $42.9 million proceeds from borrowings and $3.3 million of proceeds from exercise of stock options and ESPP.

Commitments

See Note 12 of the Notes to the Condensed Consolidated Financial Statements contained in this Quarterly Report on Form 10-Q for a description of commitments.

Off-Balance Sheet Arrangements

As of March 31, 2022, we had no material off-balance sheet arrangements as defined in Regulation S-K 303(a)(4)(ii) arrangements.

Contractual Obligations

46

There were no material changes outside of our ordinary course of business in our contractual obligations from those disclosed in our Annual Report on Form 10-K for the fiscal year ended June 30, 2021.

Recent Accounting Pronouncements

See Note 1 of the Notes to the Condensed Consolidated Financial Statements contained in this Quarterly Report on Form 10-Q for a description of recent accounting pronouncements, including the expected dates of adoption and estimated effects on results of operations and financial condition, which is incorporated herein by reference.

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ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

There have been no material changes in the market risks previously disclosed in Part II, Item 7A, "Quantitative and Qualitative Disclosures About Market Risk," of our Annual Report on Form 10-K for the year ended June 30, 2021, filed with the SEC on August 30, 2021.

ITEM 4. CONTROLS AND PROCEDURES

Management's Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended, (the “Exchange Act”)), as of the end of the period covered by this report. Based on that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures as of March 31, 2022 have been designed and are functioning effectively to provide reasonable assurance that the information required to be disclosed in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, or persons performing similar functions, as appropriate to allow timely decisions regarding required disclosure.

Changes in Internal Control over Financial Reporting

There were no changes in our internal control over financial reporting during the nine months ended March 31, 2022 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Limitation on Effectiveness of Controls

While our disclosure controls and procedures and internal control over financial reporting are designed to provide reasonable assurance that their respective objectives will be met, we do not expect that our disclosure controls and procedures or our internal control over financial reporting are or will be capable of preventing or detecting all errors and all fraud. Any control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that the control system's objectives will be met.

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PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

As previously disclosed, the DOJ commenced an investigation into the Company’s compliance with export control regulations relating to its business transactions with Huawei and its affiliates (“Huawei”), which were added to the “Entity List” by the DOC in May 2019. The Company is cooperating fully with federal authorities in the investigation. The Company has continued to respond to inquiries and requests from DOJ for documents and information relating to the investigation, and the matter is currently pending at DOJ, and DOJ has not provided the Company with any specific timeline or indication as to when the investigation will be concluded or resolved. In connection with this investigation, DOC previously requested the Company to suspend shipments of its products to Huawei. The Company complied with such request, and the Company has not shipped any product to Huawei after December 31, 2019. The Company continues to work with DOC to resolve this issue and requested DOC to grant permission to reinstate the Company’s shipments to Huawei. As part of this process and in response to DOC’s request, the Company provided certain documents and materials relating to the Company’s supply chain and shipment process to DOC, and DOC is currently reviewing this matter. DOC has not informed the Company of any specific timeline or schedule under which DOC will provide a response to the Company’s request.

We have in the past, and may from time to time in the future, become involved in legal proceedings arising from the normal course of business activities. The semiconductor industry is characterized by frequent claims and litigation, including claims regarding patent and other intellectual property rights as well as improper hiring practices. Irrespective of the validity of such claims, we could incur significant costs in the defense thereof or could suffer adverse effects on its operations.

ITEM 1A. RISK FACTORS

Item 1A of Part I of our Annual Report on Form 10-K for the year ended June 30, 2020, filed with the SEC on August 30, 2021, contains risk factors identified by the Company. Except as noted below, there have been no material changes to the risk factors we previously disclosed in our filings with the SEC. Our operations could also be affected by additional factors that are not presently known to us or by factors that we currently consider immaterial to our business.

Our business operations and financial performance may be adversely affected by the COVID-19 pandemic and related events.

Our business operations have been impacted by the global COVID-19 pandemic and the resulting economic downturn. Numerous governmental jurisdictions, including the States of California, Oregon and Texas in the U.S. and countries throughout the Asia Pacific region have imposed various restrictions on commercial activities, resulting in business closures, work stoppages, labor shortage, disruptions to ports, vaccine mandates and other shipping infrastructure, border closures, thereby negatively impacting our customers, suppliers, distributors, employees, offices, and the entire semiconductor ecosystem.

As a result of the COVID-19 pandemic and changing consumer behaviors due to various government restrictions and the growing trend to provide remote-working options by employers, we have experienced shifting market trends, including an increasing demand in markets for notebooks, PCs, gaming devices and other products. While we have benefited from the increasing demand for PC related products, there is no guarantee that this trend will continue, and such increasing demand may discontinue or decline if government authorities relax or terminate COVID-19 related restrictions and consumer behaviors change in response to the reopening of certain economic activities.

Since the start of the second quarter of calendar year 2021, there have been increasing availability and administration of vaccines against COVID-19, as well as an easing of restrictions on social, business, travel, and government activities and functions, and a gradual resumption of economic activities and consumer spending in our industries. However, infection rates continued to fluctuate in various regions and new strains of the virus remain a risk, including a surge of COVID-19 cases and hospitalization due to the spread of Omicron variants in late 2021 and early 2022. During the first calendar quarter of 2022, COVID-19 cases and hospitalization rate continued to decline and governments in various jurisdictions, including the U.S. and Europe, have lifted various restrictions and limitations on economic activities. However, there are ongoing global impacts resulting from the pandemic, including disruption of the product supply chains, shortages of semiconductor components and raw materials, and delays in shipments, product development, and product launches and rising inflation rates, any of which may adversely affect our operations. In addition, actions by United States federal, state and local governments, as well as by foreign governments, to address the COVID-19 pandemic, including travel bans, stay-at-home orders and school, business and entertainment venue closures, also had a significant adverse effect on the markets in which we conduct our businesses.

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COVID-19 poses the risk that our workforce, suppliers, and other partners may be prevented from conducting normal business activities for an extended period of time, including due to shutdowns or stay-at-home orders that may be requested or mandated by governmental authorities.

In April, 2022, the city of Shanghai, China entered into a strict lockdown due to surging COVID-19 cases and the local government’s imposition of the “Zero Covid” policy. Our packaging and assembly facilities in Shanghai were shut down and production has been halted beginning in mid-April. Transportation suspension in and out of Shanghai also interrupted the shipping of raw materials and finished parts to and from our Songjiang factory. While we have recently received permission to reopen our facilities partially, the pace at which we can resume full operations remains challenging due to difficulties in bringing back our workforce to the facilities, procuring certain raw materials and resolving logistical bottlenecks, and we also expect to incur additional costs to implement and maintain public health safety measures and protocols at our factories as required by the Shanghai authorities. Currently we intend to gradually ramp up production at these facilities in May and return to normal operation in June 2022, assuming no additional restriction and lockdown are imposed by the government. However, there is no guarantee that additional restrictions and lockdown will not be reimposed by the government, which is outside of our control, and any extension of the lockdown will continue to have a negative impact on our results of operations and financial conditions.

We also expect to incur additional incremental costs to comply with various public health and safety requirements imposed by the Shanghai government, which may continue for an extended period of time even after city-wide lockdown is lifted. Furthermore, while we intend to secure alternative sources of packaging capacity from third-party providers to mitigate the impact of the shutdown, there is no guarantee that such source will be available or on terms that are reasonable to us. Even if alternative sources are available, it will be difficult to complete the transition to such sources efficiently and timely, and we currently do not expect that we will be able to secure sufficient third-party packaging sources to substitute or replace fully our in-house capacity. The suspension of our Shanghai facilities, and the subsequent partial resumption of production, are reducing our ability to complete orders from our customers in a timely manner or at all, which is expected to adversely affect our revenue and results of operation for the three months ending June 30, 2022. It is uncertain how long the Shanghai government intends to impose and extend the lockdown, and even when lifted, the government may reimpose strict zero-positive-case requirements in the future that will negatively impact our business operations.

The full extent of the future impact of the COVID-19 pandemic on our operational and financial performance is uncertain and will depend on many factors beyond our control, including, without limitation, the timing, extent, trajectory and duration of the pandemic; the availability, distribution and effectiveness of vaccines; the spread of new variants of COVID-19; the continued and renewed imposition of protective public safety measures such as lockdowns and quarantines; the continuing global disruption in supply chains in our industries and the impact of the pandemic on the global economy, inflation and demand for consumer products. Even after the pandemic has subsided and economic activities gradually increase, we may continue to experience material and adverse impacts to our business, operating results, and financial condition as a result of the pandemic’s lasting global economic impact, including any recession that may occur in the future in our industries, as well as possible continuing inflationary impacts resulting from these factors.

Our operation of two wholly-owned packaging and testing facilities are subject to risks that could adversely affect our business and financial results.

We have two wholly-owned packaging and testing facilities located in Shanghai, China that handle most of our packaging and testing requirements. The operation of high-volume packaging and testing facilities and implementation of our advanced packaging technology are complex and demand a high degree of precision and may require modification to improve yields and product performance. We have committed substantial resources to ensure that our packaging and testing facilities operate efficiently and successfully, including the acquisition of equipment and raw materials, and training and management of a large number of technical personnel and employees. Due to the fixed costs associated with operating our own packaging and testing facilities, if we are unable to utilize our in-house facilities at a desirable level of production, our gross margin and results of operations may be adversely affected. For example, a significant decline in our market share or sales orders may negatively impact our factory utilization and reduce our ability to achieve profitability.

In April 2022, the operations of our packaging and testing facilities in Shanghai, China were suspended due to a strict lockdown of the city imposed by the local government in response to surging COVID cases. The facilities were required to shut down and production was halted since mid-April. Transportation suspension in and out of Shanghai also interrupted the shipping of raw materials and finished parts to and from our facilities. While we have recently received permission to reopen our facilities partially, the pace at which we can resume full operations remains challenging due to difficulties in bringing back our workforce to the facilities, procuring certain raw materials and resolving logistical bottlenecks, and we also expect to incur additional costs to implement and maintain public health safety measures and protocols at our factories as required by the Shanghai authorities. Currently we intend to gradually ramp up production at these facilities in May and return to normal operation in June 2022, assuming no additional restriction and lockdown are imposed by the government. However, there is no guarantee that additional restrictions and lockdown will not be reimposed by the government, which is outside of our control,

50

and any extension of the lockdown will continue to have a negative impact on our results of operation and financial condition. Furthermore, while we intend to secure alternative sources of packaging capacity from third-party providers, there is no guarantee that such sources are available, and even if available, it will be difficult to complete the transition efficiently and timely, and such alternative source of capacity is not expected to be sufficient to substitute or replace fully our in-house capacity. The suspension of our Shanghai facilities had a negative impact on our production and is expected to adversely affect our revenue and results of operation for the three months ending June 30, 2022. It is uncertain how long the city-wide shutdown will last, and even when lifted, the government may impose strict zero-positive-case requirements before allowing our factory to reopen and our production to resume. It is not possible to predict at this time the ultimate duration of these restrictions or the impact on financial results in the near-term.

In addition, the operation of our packaging and testing facilities is subject to a number of risks, including the following:

•unavailability of equipment, whether new or previously owned, at acceptable terms and prices;

•facility equipment failure, power outages or other disruptions;

•shortage of raw materials, including packaging substrates, copper, gold and molding compound;

•failure to maintain quality assurance and remedy defects and impurities;

•changes in the packaging requirements of customers;

•our limited experience in operating a high-volume packaging and testing facility; and

•operation stoppage due to the city-wide COVID-19 lockdown.

Any of the foregoing risks could adversely affect our capacity to package and test our products, which could delay shipment of our products, result in higher expenses, reduce revenue, damage our relationships with customers and otherwise adversely affect our business, results of operations, financial condition and prospects.

Our business operations and financial conditions may be adversely affected by any disruption in our information technology systems, including any cyberattacks and breaches.

Our operations are dependent upon our information technology systems, which encompass all of our major business functions across offices internationally. We rely upon such information technology systems to manage and replenish inventory, complete and track customer orders, coordinate sales activities across all of our products and services, maintain vital data and information, perform financial and accounting tasks and manage and perform various administrative and human resources functions. A substantial disruption in our information technology systems for any extended time period (arising from, for example, system capacity limits from unexpected increases in our volume of business, outages or delays in our service) could result in delays in receiving inventory and supplies or filling customer orders and adversely affect our customer service and relationships. Our systems might be damaged or interrupted by natural or man−made events or by computer viruses, physical or electronic break−ins, cyber-attacks and similar disruptions affecting the global Internet.

In addition, recent widespread ransomware attacks and cybersecurity breaches in the U.S. and elsewhere have affected many companies, including the cybersecurity incident involving SolarWinds Orion in December 2020. In the past, we also experienced ransomware attacks on our information technology system. In April, 2022, we became aware of a cybersecurity incident involving unauthorized access to one email account at the Company, which caused us to make payments to unauthorized bank accounts. We recorded a loss of $1.5 million due to the incident for the three months ended March 31, 2022. Immediately following the discovery, we commenced an investigation, contained the incident and implemented additional protective measures and internal control policies and procedures. We also alerted law enforcement authorities and banking institutions in an effort to recover the lost amount. While this incident appears to be isolated and its financial impact identified to date is not material, we cannot be certain that we have not incurred other damages and losses until a full investigation is concluded, and there is no guarantee that we will be able to recover the lost amount.

While these attacks did not have a material adverse effect on our business operation or results of operations, they caused temporary disruptions and interfered with our operations. Any cybersecurity breach and financial loss may also have a negative impact on our internal control over financial reporting. While we have implemented additional measures to enhance our security protocol to protect our system and intend to do so in response to any threats, there is no guarantee that future attacks would be thwarted or prevented. We also expect to incur additional costs and expenses to upgrade our information technology system and establish additional protective measures to prevent future breaches. Furthermore, despite our efforts to investigate, improve and remediate the capability and performance of our information technology system, we may not be able to discover all weaknesses, breaches and vulnerabilities, and failure to do so may expose us to higher risk of data loss and adversely affect our business operations and results of operations.

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ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

In September 2017, the Board of Directors approved a repurchase program (the “Repurchase Program”) that allowed us to repurchase our common shares from the open market pursuant to a pre-established Rule 10b5-1 trading plan or through privately negotiated transactions up to an aggregate of $30.0 million. The amount and timing of any repurchases under the Repurchase Program depend on a number of factors, including but not limited to, the trading price, volume and availability of our common shares. There is no guarantee that such repurchases under the Repurchase Program will enhance the value of our shares. Shares repurchased under this program are accounted for as treasury shares and the total cost of shares repurchased is recorded as a reduction of shareholders' equity. During the three months ended March 31, 2022, we did not repurchase any shares under the Repurchase Program. As of March 31, 2022, approximately $13.4 million remained available under the Repurchase Program.

52

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

Not applicable.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5. OTHER INFORMATION

Not applicable.

53

ITEM 6. EXHIBITS

10.1	Fourth Addendum to Foundry Agreement dated as of July 28, 2005 between the Registrant and Shanghai Hua Hong NEC Electronics Company, Limited
10.2	Fifth Addendum to Foundry Agreement dated as of July 28, 2005 between the Registrant and Shanghai Hua Hong NEC Electronics Company, Limited
31.1	Certification of Chief Executive Officer pursuant to Securities Exchange Act Rules 13a-14(a) and 15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	Certification of Chief Financial Officer pursuant to Securities Exchange Act Rules 13a-14(a) and 15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1	Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2	Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS	Inline XBRL Instance
101.SCH	Inline XBRL Taxonomy Extension Schema
101.CAL	Inline XBRL Taxonomy Extension Calculation
101.DEF	Inline XBRL Taxonomy Extension Definition
101.LAB	Inline XBRL Taxonomy Extension Labels
101.PRE	Inline XBRL Taxonomy Extension Presentation
104	Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

54

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

May 10, 2022

ALPHA AND OMEGA SEMICONDUCTOR LIMITED
By:	/s/  YIFAN LIANG
	Yifan Liang
	Chief Financial Officer and Corporate Secretary
	(Principal Financial Officer)

55

EX-10.1

EX-10.2

EX-31.1

Exhibit 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO

SECURITIES EXCHANGE ACT RULES 13a-14(a) and 15d-14(a), AS ADOPTED PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Mike F. Chang, certify that:

1.    I have reviewed this Quarterly Report on Form 10-Q of Alpha and Omega Semiconductor Limited (the "registrant");

2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.    The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.    Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.    Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.    Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.    Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.    The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a.    All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b.    Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: May 10, 2022

/s/    Mike F. Chang   

Mike F. Chang

Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO

SECURITIES EXCHANGE ACT RULES 13a-14(a) and 15d-14(a), AS ADOPTED PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Yifan Liang, certify that:

1.    I have reviewed this Quarterly Report on Form 10-Q of Alpha and Omega Semiconductor Limited (the "registrant");

2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.    The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.    Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.    Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.    Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.    Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.    The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a.    All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b.    Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: May 10, 2022

/s/    Yifan Liang

Yifan Liang

Chief Financial Officer and Corporate Secretary

EX-32.1

Exhibit 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Mike F. Chang, chief executive officer of Alpha and Omega Semiconductor Limited (the "Company"), certify for the purposes of 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge,

a.the Quarterly Report of the Company on Form 10-Q for the fiscal quarter ended March 31, 2022 (the "Report"), fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

b.the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: May 10, 2022

/s/    Mike F. Chang    

Mike F. Chang

Chief Executive Officer

EX-32.2

Exhibit 32.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Yifan Liang, chief financial officer of Alpha and Omega Semiconductor Limited (the "Company"), certify for the purposes of 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge,

a.the Quarterly Report of the Company on Form 10-Q for the fiscal quarter ended March 31, 2022 (the "Report"), fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

b.the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: May 10, 2022

/s/    Yifan Liang

Yifan Liang

Chief Financial Officer and Corporate Secretary

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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2022	Jun. 30, 2021
Current assets:
Cash and cash equivalents	$ 323,134	$ 202,412
Restricted cash	236	233
Accounts receivable, net	39,207	35,789
Due from Related Parties, Current	15,171	0
Inventories	143,538	154,293
Other current assets	11,698	14,595
Total current assets	517,813	407,322
Property, plant and equipment, net	245,770	436,977
Operating lease right-of-use assets, net	24,971	34,660
Intangible assets, net	10,890	13,410
Equity Method Investments	379,824	0
Deferred income tax assets	436	5,167
Restricted cash - long-term	0	2,168
Other long-term assets	29,465	18,869
Total assets	1,209,169	918,573
Current liabilities:
Accounts payable	69,758	80,699
Accrued liabilities	91,333	69,494
Income taxes payable	6,733	2,604
Short-term debt	11,332	58,030
Finance lease liabilities	862	16,724
Operating lease liabilities	4,303	5,679
Total current liabilities	199,492	233,230
Long-term debt	53,887	77,990
Income taxes payable - long-term	1,359	1,319
Deferred income tax liabilities	29,192	2,448
Finance lease liabilities - long-term	3,834	12,698
Operating lease liabilities - long-term	22,120	30,440
Other long-term liabilities	72,384	44,123
Total liabilities	382,268	402,248
Commitments and contingencies (Note 12)
Preferred shares, par value $0.002 per share:
Authorized: 10,000 shares; issued and outstanding: none at March 31, 2022 and June 30, 2021	0	0
Common shares, par value $0.002 per share:
Authorized: 100,000 shares; issued and outstanding: 33,681 shares and 27,063 shares, respectively at March 31, 2022 and 32,975 shares and 26,350 shares, respectively at June 30, 2021	67	66
Treasury shares at cost: 6,618 shares at March 31, 2022 and 6,625 shares at June 30, 2021	(66,006)	(66,064)
Additional paid-in capital	276,509	259,993
Accumulated other comprehensive income	1,422	2,315
Retained earnings	614,909	176,895
Total Alpha and Omega Semiconductor Limited shareholder's equity	826,901	373,205
Noncontrolling interest	0	143,120
Total equity	826,901	516,325
Total liabilities and equity	$ 1,209,169	$ 918,573

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CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Mar. 31, 2022	Jun. 30, 2021
Preferred stock, par value (in dollars per share)	$ 0.002	$ 0.002
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common shares, par value (in dollars per share)	$ 0.002	$ 0.002
Common shares, authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	33,681,000	32,975,000
Common stock, shares outstanding (in shares)	27,063,000	26,350,000
Treasury shares (in shares)	6,618,000	6,625,000

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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Revenue	$ 203,239	$ 169,212	$ 583,593	$ 479,593
Cost of goods sold	130,837	116,521	378,259	335,630
Gross profit	72,402	52,691	205,334	143,963
Operating expenses
Research and development	16,545	15,557	50,873	45,671
Selling, general and administrative	24,625	19,338	70,563	56,579
Total operating expenses	41,170	34,895	121,436	102,250
Operating income	31,232	17,796	83,898	41,713
Other income (loss), net	263	(253)	720	2,087
Interest income (expense), net	(308)	(1,562)	(3,025)	(4,832)
Gain on deconsolidation of the JV Company	0	0	399,093	0
Gain (loss) on changes of equity interest in the JV Company, net	4,501	0	(3,140)	0
Income (loss) before income taxes	35,688	15,981	477,546	38,968
Income tax expense	2,902	1,014	38,318	2,694
Net income including noncontrolling interest	32,786	14,967	439,228	36,274
Loss on equity investment	1,136	0	1,136	0
Net income	31,650	14,967	438,092	36,274
Net gain (loss) attributable to noncontrolling interest	0	(1,133)	20	(2,303)
Net income attributable to Alpha and Omega Semiconductor Limited	$ 31,650	$ 16,100	$ 438,072	$ 38,577
Net income per common share attributable to Alpha and Omega Semiconductor Limited
Basic (in dollars per share)	$ 1.18	$ 0.62	$ 16.47	$ 1.51
Diluted (in dollars per share)	$ 1.11	$ 0.58	$ 15.58	$ 1.42
Weighted average number of common shares attributable to Alpha and Omega Semiconductor Limited used to compute net income per share
Basic (in shares)	26,829	25,882	26,596	25,631
Diluted (in shares)	28,423	27,716	28,116	27,128

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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income including noncontrolling interest through December 1, 2021	$ 31,650	$ 14,967	$ 438,092	$ 36,274
Other comprehensive income, net of tax
Foreign currency translation adjustment	162	(799)	1,649	11,718
Cumulative translation adjustment removal due to deconsolidation of the JV Company	0	0	(3,642)	0
Comprehensive income	31,812	14,168	436,099	47,992
Less: Noncontrolling interest	0	(1,447)	(1,080)	3,292
Comprehensive income attributable to Alpha and Omega Semiconductor Limited	31,812	15,615	437,179	44,700
Net income including noncontrolling interest	$ 32,786	$ 14,967	$ 439,228	$ 36,274

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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Total AOS Shareholders' Equity	Common Shares	Treasury Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Noncontrolling Interest
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance, including portion attributable to noncontrolling interest	$ 431,888
Beginning balance at Jun. 30, 2020		$ 293,689	$ 64	$ (66,184)	$ 246,103	$ (5,127)	$ 118,833
Beginning balance, noncontrolling interest at Jun. 30, 2020								$ 138,199
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of common stock options and release of restricted stock units (in shares)			0
Exercise of common stock options and release of restricted stock units	1,624	1,624			1,624
Reissuance of treasury stock upon exercise of common stock options and release of RSUs	66	66		120			(54)
Withholding tax on restricted stock units	(6,153)	(6,153)			(6,153)
Issuance of shares under ESPP (in shares)			1
Issuance of shares under ESPP	1,636	1,636			1,635
Share-based compensation	7,725	7,725			7,725
Restricted stock units settlement in connection with service	2,000	2,000			2,000
Net loss	38,577	38,577					38,577
Net gain (loss) attributable to noncontrolling interest	(2,303)							(2,303)
Net income including noncontrolling interest	36,274
Cumulative translation adjustment		6,123				6,123
Cumulative translation adjustment, attributable to noncontrolling interest								5,595
Foreign currency translation adjustment	11,718
Ending balance at Mar. 31, 2021		345,287	$ 65	(66,064)	252,934	996	157,356
Ending balance, noncontrolling interest at Mar. 31, 2021								141,491
Ending balance, including portion attributable to noncontrolling interest at Mar. 31, 2021	486,778
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income including noncontrolling interest through December 1, 2021	36,274
Beginning balance, including portion attributable to noncontrolling interest	474,656
Beginning balance at Dec. 31, 2020		331,718	$ 65	(66,097)	254,980	1,481	141,289
Beginning balance, noncontrolling interest at Dec. 31, 2020								142,938
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of common stock options and release of restricted stock units (in shares)			0
Exercise of common stock options and release of restricted stock units	129	129			129
Reissuance of treasury stock upon exercise of common stock options and release of RSUs	0	0		33			(33)
Withholding tax on restricted stock units	(5,200)	(5,200)			(5,200)
Share-based compensation	3,025	3,025			3,025
Net loss	16,100	16,100					16,100
Net gain (loss) attributable to noncontrolling interest	(1,133)							(1,133)
Net income including noncontrolling interest	14,967
Cumulative translation adjustment		(485)				(485)
Cumulative translation adjustment, attributable to noncontrolling interest								(314)
Foreign currency translation adjustment	(799)
Ending balance at Mar. 31, 2021		345,287	$ 65	(66,064)	252,934	996	157,356
Ending balance, noncontrolling interest at Mar. 31, 2021								141,491
Ending balance, including portion attributable to noncontrolling interest at Mar. 31, 2021	486,778
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income including noncontrolling interest through December 1, 2021	14,967
Beginning balance, including portion attributable to noncontrolling interest	486,778
Beginning balance, including portion attributable to noncontrolling interest	516,325
Beginning balance at Jun. 30, 2021	373,205	373,205	$ 66	(66,064)	259,993	2,315	176,895
Beginning balance, noncontrolling interest at Jun. 30, 2021	143,120							143,120
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of common stock options and release of restricted stock units (in shares)			0
Exercise of common stock options and release of restricted stock units	859	859			859
Reissuance of treasury stock upon exercise of common stock options and release of RSUs	0	0		58			(58)
Withholding tax on restricted stock units	(8,354)	(8,354)			(8,354)
Issuance of shares under ESPP (in shares)			1
Issuance of shares under ESPP	2,423	2,423			2,422
Share-based compensation	21,189	21,189			21,189
Restricted stock units settlement in connection with service	400	400			400
Net loss	438,072	438,072					438,072
Net gain (loss) attributable to noncontrolling interest	20							20
Net income including noncontrolling interest	439,228
Cumulative translation adjustment		900				900
Cumulative translation adjustment, attributable to noncontrolling interest								749
Foreign currency translation adjustment	1,649
Deconsolidation of noncontrolling interest	(145,682)	(1,793)				(1,793)		(143,889)
Ending balance at Mar. 31, 2022	826,901	826,901	$ 67	(66,006)	276,509	1,422	614,909
Ending balance, noncontrolling interest at Mar. 31, 2022	0							0
Ending balance, including portion attributable to noncontrolling interest at Mar. 31, 2022	826,901
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income including noncontrolling interest through December 1, 2021	438,092
Beginning balance, including portion attributable to noncontrolling interest	793,990
Beginning balance at Dec. 31, 2021		793,990	$ 67	(66,046)	275,410	1,260	583,299
Beginning balance, noncontrolling interest at Dec. 31, 2021								0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of common stock options and release of restricted stock units (in shares)			0
Exercise of common stock options and release of restricted stock units	558	558			558
Reissuance of treasury stock upon exercise of common stock options and release of RSUs	0	0		40			(40)
Withholding tax on restricted stock units	(7,732)	(7,732)			(7,732)
Share-based compensation	8,273	8,273			8,273
Net loss	31,650	31,650					31,650
Net gain (loss) attributable to noncontrolling interest	0
Net income including noncontrolling interest	32,786
Cumulative translation adjustment		162				162
Foreign currency translation adjustment	162
Ending balance at Mar. 31, 2022	826,901	$ 826,901	$ 67	$ (66,006)	$ 276,509	$ 1,422	$ 614,909
Ending balance, noncontrolling interest at Mar. 31, 2022	0							$ 0
Ending balance, including portion attributable to noncontrolling interest at Mar. 31, 2022	826,901
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income including noncontrolling interest through December 1, 2021	31,650
Beginning balance, including portion attributable to noncontrolling interest	$ 826,901

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities
Net income including noncontrolling interest through December 1, 2021	$ 438,092	$ 36,274
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on deconsolidation of the JV Company	(399,093)	0
Loss on changes of equity interest in the JV Company, net	3,140	0
Deferred income tax on deconsolidation and changes of equity interest in the JV Company	29,973	0
Depreciation and amortization	34,263	39,434
Loss on equity investment	1,136	0
Share-based compensation expense	21,454	9,925
Deferred income taxes, net	2,182	732
Loss on disposal of property and equipment	57	40
Changes in operating assets and liabilities, net of effects of a divestiture
Accounts receivable	(3,610)	(20,448)
Inventories	(42,914)	(9,582)
Other current and long-term assets	(10,078)	(2,297)
Other payable, equity investee	34,375	0
Accounts payable	15,608	(224)
Income taxes payable	(1)	1,097
Income taxes payable on deconsolidation and changes of equity interest in the JV Company	3,490	0
Accrued and other liabilities	65,122	29,573
Net cash provided by operating activities	193,196	84,524
Cash flows from investing activities
Proceeds from sale of equity interest in the JV Company	26,347	0
Deconsolidation of cash and cash equivalents of the JV Company	(20,734)	0
Purchases of property and equipment excluding the JV Company	(82,980)	(24,913)
Purchases of property and equipment in JV Company	(15,026)	(15,628)
Proceeds from sale of property and equipment	9	10
Government grant related to equipment	1,242	119
Net cash used in investing activities	(91,142)	(40,412)
Cash flows from financing activities
Withholding tax on restricted stock units	(8,354)	(6,153)
Proceeds from exercise of stock options and ESPP	3,282	3,326
Proceeds from borrowings	59,262	42,858
Repayments of borrowings	(33,663)	(44,087)
Principal payments on finance leases	(4,176)	(12,267)
Net cash provided by (used in) financing activities	16,351	(16,323)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	152	3,982
Net increase in cash, cash equivalents and restricted cash	118,557	31,771
Cash, cash equivalents and restricted cash at beginning of period	204,813	162,704
Cash, cash equivalents and restricted cash at end of period	323,370	194,475
Supplemental disclosures of non-cash investing and financing information:
Property and equipment purchased but not yet paid	$ 25,565	$ 16,912

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The Company and Significant Accounting Policies

Jan. 26, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

The Company and Significant Accounting Policies

The Company and Significant Accounting Policies

The Company

Alpha and Omega Semiconductor Limited and its subsidiaries (the “Company”, “AOS”, “we” or “us”) design, develop and supply a broad range of power semiconductors. The Company's portfolio of products targets high-volume applications, including personal and portable computers, graphic cards, flat panel TVs, home appliances, smart phones, battery packs, quick chargers, home appliances, consumer and industrial motor controls and power supplies for TVs, computers, servers and telecommunications equipment. The Company conducts its operations primarily in the United States of America (“USA”), Hong Kong, China, and South Korea.

Basis of Preparation

The accompanying unaudited Condensed Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) for interim financial information and with the instructions to Article 10 of Securities and Exchange Commission Regulation S-X, as amended. They do not include all information and footnotes necessary for a fair presentation of financial position, results of operations and cash flows in conformity with U.S. GAAP for complete financial statements. These Condensed Consolidated Financial Statements should be read in conjunction with the consolidated financial statements and related notes contained in the Company’s Annual Report on Form 10-K for the fiscal year ended June 30, 2021. All significant intercompany balances and transactions have been eliminated in consolidation. In the opinion of management, all adjustments (consisting of normal recurring adjustments and accruals) considered necessary for a fair presentation of the results of operations for the periods presented have been included in the interim periods. Operating results for the nine months ended March 31, 2022 are not necessarily indicative of the results that may be expected for the fiscal year ending June 30, 2022 or any other interim period. The consolidated balance sheet at June 30, 2021 is derived from the audited financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended June 30, 2021.

Reclassification

The Company has reclassified certain amounts previously reported in its financial statements to conform to the current presentation. These reclassifications did not have a material impact on our Condensed Consolidated Financial Statements. See Note 11.

Joint Venture and Deconsolidation

On March 29, 2016, the Company entered into a joint venture contract (the “JV Agreement”) with two investment funds owned by the Municipality of Chongqing (the “Chongqing Funds”), pursuant to which the Company and the Chongqing Funds formed a joint venture, (the “JV Company”), for the purpose of constructing and operating a power semiconductor packaging, testing and 12-inch wafer fabrication facility (“Fab”) in the LiangJiang New Area of Chongqing, China (the “JV Transaction”). The Fab is being built in phases.  As of December 1, 2021, the Company owned 50.9%, and the Chongqing Funds owned 49.1% of the equity interest in the JV Company. The Joint Venture was accounted under the provisions of the consolidation guidance since the Company had controlling financial interest until December 1, 2021.

Effective December 1, 2021, the Company entered into a share transfer agreement (the “STA”) with a third-party investor (the “Investor”), pursuant to which the Company sold to the Investor approximately 2.1% of outstanding equity interest held by the Company in the JV Company for an aggregate purchase price of RMB 108 million or approximately $16.9 million (the “Transaction”). The Transaction was closed on December 2, 2021 (the “Closing Date”). As a result of the Transaction, as of the Closing Date, the Company’s equity interest in the JV Company decreased from 50.9% to 48.8%. Also, the Company’s right to designate directors on the board of JV Company was reduced to three (3) out of seven (7) directors from four (4) directors prior to the Transaction. As a result of the Transaction, AOS no longer had a controlling financial interest in the JV Company under generally accepted accounting principles. Loss of control is deemed to have occurred when, among other things, a parent company owns less than a majority of the outstanding equity interest in the subsidiary, lacks a controlling financial interest in the subsidiary and, is unable to unilaterally control the subsidiary through other means such as having, or the ability to obtain or represent, a majority of the subsidiary’s Board of Directors. Because of these factors, as of December 2, 2021, the Company ceased having control over the JV Company. Therefore, the Company deconsolidated the financial

statements of the JV Company as of that date. Subsequently, the Company has accounted for its investment in the JV Company using the equity method of accounting.

On December 24, 2021, the Company entered into a share transfer agreement with another third-party investor, pursuant to which the Company sold to this investor 1.1% of outstanding equity interest held by the Company in the JV Company for an aggregate purchase price of RMB 60 million, or approximately $9.4 million. In addition, the JV Company adopted an employee equity incentive plan and issued an equity interest equivalent to 3.99% of the JV Company in exchange for cash. As a result, the Company owned 45.8% of the equity interest in the JV Company as of December 31, 2021.

On January 26, 2022, the JV Company completed a financing transaction pursuant to a corporate financing agreement (the “Financing Agreement”) between the JV Company and certain third-party investors (the “New Investors”). Under the Financing Agreement, the New Investors purchased newly issued equity interest of JV for a total purchase price of RMB 509 million (or approximately $80 million based on the currency exchange rate as of January 26, 2022) (the “Investment”). Immediately following the closing of the Investment, the percentage of outstanding JV equity interest beneficially owned by the Company was further reduced to 42.2%.

Certain Significant Risks and Uncertainties Related to Outbreak of Coronavirus Disease 2019 (“COVID-19”)

The COVID-19 pandemic has had and continues to have a negative impact on business and economic activities across the globe. As a result of the COVID-19 pandemic and the global economic downturn and changing consumer behaviors due to various restrictions imposed by governments, the Company has experienced shifting market trends, including an increasing demand in the markets for notebooks, PCs and gaming devices and decreasing demand for mobile phone and industrial products, as more consumers are staying at and working from home. While the Company has recently benefited from the increasing demand of consumer electronics and PC related products, there is no guarantee that this trend will continue, and such increasing demand may discontinue or decline as government authorities relax and terminate COVID-19 related restrictions and consumer behaviors change. Furthermore, as the COVID-19 pandemic continues and global economic downturn and high unemployment persists, consumer spending may slow down substantially, in which case the Company may experience a significant decline of customer orders for its products, including those designed for PC-related applications, and such decline will adversely affect its financial conditions and results of operations. The full extent of the future impact of the COVID-19 pandemic on the Company’s operational and financial performance is uncertain and will depend on many factors outside the Company’s control, including, without limitation, the timing, extent, trajectory and duration of the pandemic; the availability, distribution and effectiveness of vaccines; the spread of new variants of COVID-19; the continued or renewed imposition of protective public safety measures and government mandates; the continuing disruption of global supply chain affecting the semiconductor industry; and the impact of the pandemic on the global economy and demand for consumer products.

In April 2022, the operations of our two packaging and testing facilities in Shanghai, China were suspended due to a strict lockdown of the city imposed by the local government in response to surging COVID cases. Our facilities in Shanghai were required to shut down and production was halted beginning in mid-April. Transportation suspension in and out of Shanghai also interrupted the shipping of raw materials and finished parts to and from our facilities. We have been working closely with factory management to separate non-infected employees from infected employees, perform regular COVID-19 testing, and secure food, water, and other necessary supplies to support employees who have been affected. In addition, we have been working with local authorities to obtain permission to reopen the facilities, and as of the date of this Form 10-Q, we have received permission to reopen our facilities partially under a “closed-loop” arrangement. Under this arrangement, some of our employees are allowed to live and work on the premises. However, the pace at which we can resume full operations remains challenging due to difficulties in bringing back our workforce to the facilities, procuring certain raw materials and resolving logistical bottlenecks. Currently we intend to gradually ramp up production at these facilities in May and return to normal operation in June 2022, assuming no additional restriction and lockdown are imposed by the government. Furthermore, while we seek to secure alternative sources of packaging capacity from third-party providers to mitigate the loss of in-house packaging capacity, there is no guarantee that such sources are available. Even if alternative sources are available, it will be difficult to complete the transition to a new supplier efficiently and timely, and we currently do not expect to secure sufficient third-party sources to substitute or replace fully our in-house packaging and testing capacity. The suspension of our Shanghai facilities, and the subsequent partial resumption of production, reduces our ability to complete orders from our customers in a timely manner, or at all, which is expected to adversely affect our revenue and results of operation for the three months ending June 30, 2022. It is uncertain how long the Shanghai government intends to impose a shutdown, and even when lifted, the government may reimpose strict zero-positive-case requirements and lockdown. It is not possible to predict at this time the ultimate duration of these restrictions or the impact on financial results in the near-term.

Use of Estimates

The preparation of the Condensed Consolidated Financial Statements in conformity with U.S. GAAP requires the Company to make estimates, judgments and assumptions that affect the reported amounts of assets, liabilities, revenue and expenses. To the extent there are material differences between these estimates and actual results, the Company's Condensed Consolidated Financial Statements will be affected. On an ongoing basis, the Company evaluates the estimates, judgments and assumptions including those related to stock rotation returns, price adjustments, allowance for doubtful accounts, inventory reserves, warranty accrual, income taxes, leases, share-based compensation, recoverability of and useful lives for property, plant and equipment and intangible assets, as well as the economic implications of the COVID-19 pandemic.

Leases

The Company determines if an arrangement is a lease at inception. Operating leases are included in operating lease right-of-use (“ROU”) assets, current operating lease liabilities and long-term operating lease liabilities on the Company's Condensed Consolidated Balance Sheets. Finance leases are included in property, plant and equipment, finance lease liabilities and long-term finance leases liabilities on the Condensed Consolidated Balance Sheets.

Operating lease ROU assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. The Company uses an estimate of its incremental borrowing rate based on the information available at the lease commencement date. The operating lease ROU assets also include any lease payments made and exclude lease incentives. Lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise such options. Operating lease expense is generally recognized on a straight-line basis over the lease term. Variable lease payments are expensed as incurred and are not included within the operating lease ROU asset and lease liability calculation. The Company does not record leases on the Condensed Consolidated Balance Sheet with a term of one year or less. The Company elected to combine its lease and non-lease components as a single lease component for all asset classes.

Revenue recognition

The Company determines revenue recognition through the following steps: (1) identification of the contract with a customer; (2) identification of the performance obligations in the contract; (3) determination of the transaction price; (4) allocation of the transaction price to the performance obligations in the contract; and (5) recognition of revenue when, or as, a performance obligation is satisfied. The Company recognizes product revenue at a point in time when product is shipped to the customer, net of estimated stock rotation returns and price adjustments that it expects to provide to certain distributors. The Company presents revenue net of sales taxes and any similar assessments. Our standard payment terms range from 30 to 60 days.

The Company sells its products primarily to distributors, who in turn sell the products globally to various end customers. The Company allows stock rotation returns from certain distributors. Stock rotation returns are governed by contract and are limited to a specified percentage of the monetary value of products purchased by distributors during a specified period. The Company records an allowance for stock rotation returns based on historical returns and individual distributor agreements. The Company also provides special pricing to certain distributors, primarily based on volume, to encourage resale of the Company’s products. Allowance for price adjustments is recorded against accounts receivable and the provision for stock rotation rights is included in accrued liabilities on the Condensed Consolidated Balance Sheets.

The Company’s performance obligations relate to contracts with a duration of less than one year. The Company elected to apply the practical expedient provided in ASC 606, “Revenue from Contracts with Customers”. Therefore, the Company is not required to disclose the aggregate amount of transaction price allocated to performance obligations that are unsatisfied or partially unsatisfied at the end of the reporting period.

The Company recognizes the incremental direct costs of obtaining a contract, which consist of sales commissions, when control over the products they relate to transfers to the customer. Applying the practical expedient, the Company recognizes commissions as expense when incurred, as the amortization period of the commission asset the Company would have otherwise recognized is less than one year.

Packaging and testing services revenue is recognized at a point in time upon shipment of serviced products to the customer.

Share-based Compensation Expense

The Company maintains an equity-settled, share-based compensation plan to grant restricted share units and stock options. The Company recognizes expense related to share-based compensation awards that are ultimately expected to vest based on estimated fair values on the date of grant. The fair value of restricted share units is based on the fair value of the Company's common share on the date of grant. For restricted stock awards subject to market conditions, the fair value of each restricted stock award is estimated at the date of grant using the Monte-Carlo pricing model. The fair value of stock options is estimated on the date of grant using the Black-Scholes option valuation model. Share-based compensation expense is recognized on the accelerated attribution basis over the requisite service period of the award, which generally equals the vesting period. The Employee Share Purchase Plan (the “ESPP”) is accounted for at fair value on the date of grant using the Black-Scholes option valuation model.

Restricted Cash

The Company maintains restricted cash in connection with cash balances temporarily restricted for regular business operations, including the possibility of a dispute with a vendor. In addition, as a condition of certain loan agreement, the Company was required to keep a compensating balance at the issuing bank. These balances have been excluded from the Company’s cash and cash equivalents balance and are classified as restricted cash in the Company’s Condensed Consolidated Balance Sheets. As of March 31, 2022 and June 30, 2021, the amount of restricted cash was $0.2 million and $2.4 million, respectively.

Equity method investment

The Company uses the equity method of accounting when it has the ability to exercise significant influence, but not control, as determined in accordance with general accepted accounting principles, over the operating and financial policies of the investee. Effective December 2, 2021, the Company reduced its equity interest in the JV Company and experienced a loss of control of the JV Company. As a result, beginning December 2, 2021, the Company records its investment under equity method of accounting. Since the Company is unable to obtain accurate financial information from the JV Company in a timely manner, the Company records its share of earnings or losses of such affiliate on a one quarter lag. Therefore, the Company’s share of losses of the JV Company for the period from December 2, 2021 to December 31, 2021 was recorded in the Company’s Consolidated Statement of Operations for the three and nine months ended March 31, 2022. The Company discloses and recognizes intervening events at the JV Company in the lag period that could materially affect our consolidated financial statements, if applicable.

The Company records its interest in the net earnings of its equity method investees, along with adjustments for unrealized profits or losses on intra-entity transactions and amortization of basis differences, within earnings or loss from equity interests in the Consolidated Statements of Income. Profits or losses related to intra-entity sales with its equity method investees are eliminated until realized by the investor and investee. Basis differences represent differences between the cost of the investment and the underlying equity in net assets of the investment and are generally amortized over the lives of the related assets that gave rise to them. Equity method goodwill is not amortized or tested for impairment; instead the equity method investment is tested for impairment. The Company reviews for impairment whenever factors indicate that the carrying amount of the investment might not be recoverable. In such a case, the decrease in value is recognized in the period the impairment occurs in the Condensed Consolidated Statements of Income.

Fair Value of Financial Instruments

The fair value of cash equivalents is categorized in Level 1 in the fair value hierarchy. Cash equivalents consist primarily of short-term bank deposits. The carrying values of financial instruments such as cash and cash equivalents, accounts receivable and accounts payable approximate their carrying values due to their short-term maturities. The carrying value of the Company's debt is considered a reasonable estimate of fair value which is estimated by considering the current rates available to the Company for debt of the same remaining maturities, structure, credit risk and terms of the debts.

Government Grants

The Company occasionally receives government grants that provide financial assistance for certain eligible expenditures in China. These grants include reimbursements on interest expense on bank borrowings, payroll tax credits, credit for property, plant and equipment in a particular geographical location, employment credits, as well as business expansion credits. Government grants are not recognized until there is reasonable assurance that the Company will comply with the conditions

attaching to it, and that the grant will be received. The Company records such grants either as a reduction of the related expense, a reduction of the cost of the related asset, or as other income depending upon the nature of the grant. As a result of such grants, during the three and nine months ended March 31, 2022, the Company reduced interest expense by nil and $0.9 million, property, plant and equipment by nil and $1.2 million, and operating expenses by $0.0 million and $0.2 million, respectively. During the three and the nine months ended March 31, 2021, the Company reduced interest expense by $0.7 million and $2.2 million, property, plant and equipment by nil and $0.1 million and operating expenses by $0.1 million and $3.7 million, respectively.

Long-lived Assets

The Company evaluates its long-lived assets for impairment whenever events or changes indicate that the carrying amount of such assets may not be recoverable. Due to the COVID-19 pandemic, the Company assessed the changes in circumstances that occurred during the March and June 2020 quarters. These factors included continued operating losses, a decrease in the Company's share price in February and March of 2020, which reduced its market capitalization, expectation of lower business growth for the coming quarters, increased and prolonged economic and regulatory uncertainty in the global economies, and the expectation of higher supply chain costs and increased competition. Therefore, the Company performed a recoverability test by comparing the sum of the estimated undiscounted future cash flows of its long-lived assets to their carrying amount as of June 30, 2020. Some of the more significant assumptions used in the estimated future cash flows involve net sales, cost of goods sold, operating expenses, working capital, capital expenditures, income tax rates, long-term growth rates that appropriately reflect the risks inherent in the future cash flow stream and terminal value. The Company selected the assumptions used in the financial forecasts by referencing to historical data, supplemented by current and anticipated market conditions, estimated product growth rates and management's plans. These estimated future cash flows were consistent with those the Company uses in its internal planning. The result of the recoverability test indicated that the sum of the expected future cash flows (undiscounted and without interest charges) was greater than the carrying amount of the long-lived assets. Since this recoverability test was performed during fiscal 2020, circumstances have improved such that there are no indicators that the Company’s long-lived assets may not be recoverable.

Comprehensive Income

Comprehensive income is defined as the change in equity of a business enterprise during a period from transactions and other events and circumstances from non-owner sources. The Company's accumulated other comprehensive income consists of cumulative foreign currency translation adjustments. Total comprehensive income is presented in the Condensed Consolidated Statements of Comprehensive Income.

Recent Accounting Pronouncements

Recently Issued Accounting Standards not yet adopted

In November 2021, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2021-10, Government Assistance (Topic 832): Disclosures by Business Entities about Government Assistance. This ASU requires business entities to make annual disclosures about transactions with a government they account for by analogizing to a grant or contribution accounting model under ASC 958-605. The ASU is effective for all entities within their scope for

financial statements issued for annual periods beginning after December 15, 2021. The Company does not expect the adoption of this guidance will have a material impact on its consolidated financial position, results of operations or cash flows.

In August 2020, the FASB issued ASU No. 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity, which, among other things, provides guidance on how to account for contracts on an entity’s own equity. This ASU simplifies the accounting for certain financial instruments with characteristics of liabilities and equity. Specifically, the ASU eliminated the need for the Company to assess whether a contract on the entity’s own equity (1) permits settlement in unregistered shares, (2) whether counterparty rights rank higher than shareholder’s rights, and (3) whether collateral is required. In addition, the ASU requires incremental disclosure related to contracts on the entity’s own equity and clarifies the treatment of certain financial instruments accounted for under this ASU on earnings per share. For public business entities, the ASU is effective for fiscal years beginning after December 15, 2021, and interim periods within those fiscal years. The Company does not expect the adoption of this guidance will have a material impact on its consolidated financial position, results of operations or cash flows.

Recently Adopted Accounting Standards

In January 2020, the FASB issued ASU No. 2020-01, “Investments - Equity Securities (Topic 321), Investments - Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815) - Clarifying the Interactions between Topic 321, Topic 323, and Topic 815.” The ASU is based on a consensus of the Emerging Issues Task Force and is expected to increase comparability in accounting for these transactions. ASU 2016-01 made targeted improvements to accounting for financial instruments, including providing an entity the ability to measure certain equity securities without a readily determinable fair value at cost, less any impairment, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer. Among other topics, the amendments clarify that an entity should consider observable transactions that require it to either apply or discontinue the equity method of accounting. The adoption of ASU 2020-01 had no material impact on the Company's Consolidated Financial Statements.

In December 2019, the FASB issued ASU No. 2019-12 “Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes ("ASU 2019-12") by removing certain exceptions to the general principles. The Company adopted ASU 2019-12 as of July 1, 2021. ASU 2019-12 had no material impact on the Company's Consolidated Financial Statements.

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Equity Method Investment in Equity Investee

9 Months Ended

Mar. 31, 2022

Discontinued Operations and Disposal Groups [Abstract]

Equity Method Investment in Equity Investee

Equity Method Investment in Equity Investee

On December 1, 2021 (the “Effective Date”), Alpha & Omega Semiconductor (Shanghai) Ltd. (“AOS SH”) and Agape Package Manufacturing (Shanghai) Limited (“APM SH” and, together with AOS SH, the “Sellers”), each a wholly-owned subsidiary of the Company, entered into a share transfer agreement ("STA") with a third-party investor to sell a portion of the Company's equity interest in the JV Company which consists of a power semiconductor packaging, testing and 12-inch wafer fabrication facility in Chongqing, China (the “Transaction”). The Transaction closed on December 2, 2021 (the “Closing Date”), which reduced the Company’s equity interest in the JV Company from 50.9% to 48.8%. Also, the Company’s right to designate directors on the board of JV Company was reduced to three (3) out of seven (7) directors, from four (4) directors prior to the Transaction. As a result of the Transaction and other factors, the Company no longer has a controlling financial interest in the JV Company and has determined that the JV Company was deconsolidated from the Company’s Consolidated Financial Statements effective as of the Closing Date. In connection with the deconsolidation and in accordance with ASC 810-10-40-5, the Company recorded a gain on deconsolidation of nil and $399.1 million during the three and nine months ended March 31, 2022 in the Condensed Consolidated Statements of Income. The gain on deconsolidation of the JV Company was calculated as follows:

	(in thousands)
Cash received for sales of shares in the JV Company	$	16,924
Fair value of retained equity method investment	393,124
Carrying amount of non-controlling interest	143,889
Cumulative translation adjustment removal	1,793
Carrying amount of net assets of the JV Company at December 1, 2021	(156,637)
Gain on deconsolidation of the JV Company	$	399,093

The Company retained significant influence over the operating and financial policies of the JV Company and measured the fair value of the retained investment based on their share of the fair value of the JV Company, which was calculated using the market approach based on the Transaction.

On December 24, 2021, the Company entered into a share transfer agreement with another third-party investor, pursuant to which the Company sold to this investor 1.1% of outstanding equity interest held by the Company in the JV Company. In addition, the JV Company adopted an employee equity incentive plan and issued an equity interest equivalent to 3.99% of the JV Company in exchange to cash. As a result of these two transactions, the Company owned 45.8% of the equity interest in the JV Company as of December 31, 2021.

On January 26, 2022, the JV Company completed a financing transaction pursuant to a corporate investment agreement (the “Investment Agreement”) between the JV and certain third-party investors (the “New Investors”). Under the Investment Agreement, the New Investors purchased newly issued equity interest of JV, representing approximately 7.82% of post-transaction outstanding equity interests of the JV, for a total purchase price of RMB 509 million (or approximately USD 80 million based on the currency exchange rate as of January 26, 2022) (the “Investment”). Following the closing of the Investment and as of March 31, 2022, the percentage of outstanding JV equity interest beneficially owned by the Company was reduced to 42.2%.

The Company recorded the gain of $4.5 million on changes on equity interest of the JV Company during the three months ended March 31, 2022 and the loss of $3.1 million on changes on equity interest of the JV Company during the nine months of March 31, 2022. The net loss associated with these sales of JV Company equity interest held by the Company were recorded in the nine months ended March 31, 2022 as follows:

	(in thousands)
Gain on 1.1% equity interest sold	$	475
Loss on diluted equity interest from issuance of shares under the employee equity incentive plan	(8,116)
Gain on 7.82% equity interest sold	4,501
Loss on changes on equity interest of the JV Company, net	$	(3,140)

The Company accounts for its investment in the JV Company as an equity method investment and reports its equity in earnings or loss of the JV Company on a three-month lag due to an inability to timely obtain financial information of the JV Company. During the three and nine months ended March 31, 2022, the Company recorded $1.1 million of its equity in loss of the JV Company, using lag reporting.

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Related Party Transactions	Mar. 31, 2022
Related Party Transactions [Abstract]
Related Party Transactions	Related Party TransactionsAs of March 31, 2022, the Company owned 42.2% equity interest in the JV Company, which, by definition, is a related party to the Company. The JV Company supplies 12-inch wafers and provides assembly and testing services to AOS. AOS also sells 8-inch wafers to the JV Company for further assembly and testing services. Due to the right of offset of receivables and payables with the JV Company, as of March 31, 2022, AOS recorded the net amount of $15.2 million presented as other payable, equity investee, in the Condensed Consolidated Balance Sheet. Since the December 2, 2021 deconsolidation of the JV Company, the purchases by AOS for the three and nine months ended March 31, 2022 were $45.8 million and $61.4 million respectively, and the sales by AOS for the three and nine months ended March 31, 2022 were $14.2 million and $18.4 million, respectively.

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Net Income Per Common Share Attributable to Alpha and Omega Semiconductor Limited

9 Months Ended

Mar. 31, 2022

Earnings Per Share [Abstract]

Net Income (Loss) Per Share

Net Income Per Common Share Attributable to Alpha and Omega Semiconductor Limited

The following table presents the calculation of basic and diluted net income per share attributable to common shareholders:

	Three Months Ended March 31,				Nine Months Ended March 31,
	2022		2021		2022		2021
	(in thousands, except per share data)
Numerator:
Net income attributable to Alpha and Omega Semiconductor Limited	$	31,650	$	16,100	$	438,072	$	38,577
Denominator:
Basic:
Weighted average number of common shares used to compute basic net income per share	26,829		25,882		26,596		25,631
Diluted:
Weighted average number of common shares used to compute basic net income per share	26,829		25,882		26,596		25,631
Effect of potentially dilutive securities:
Stock options, RSUs and ESPP shares	1,594		1,834		1,520		1,497
Weighted average number of common shares used to compute diluted net income per share	28,423		27,716		28,116		27,128
Net income per share attributable to Alpha and Omega Semiconductor Limited:
Basic	$	1.18	$	0.62	$	16.47	$	1.51
Diluted	$	1.11	$	0.58	$	15.58	$	1.42

The following potential dilutive securities were excluded from the computation of diluted net income per share as their effect would have been anti-dilutive:

	Three Months Ended March 31,		Nine Months Ended March 31,
	2022	2021	2022	2021
	(in thousands)		(in thousands)
Employee stock options and RSUs	2	107	171	80
ESPP	19	—	27	89
Total potential dilutive securities	21	107	198	169

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Concentration of Credit Risk and Significant Customers

9 Months Ended

Mar. 31, 2022

Risks and Uncertainties [Abstract]

Concentration of Credit Risk and Significant Customers

Concentration of Credit Risk and Significant Customers

The Company manages its credit risk associated with exposure to distributors and direct customers on outstanding accounts receivable through the application and review of credit approvals, credit ratings and other monitoring procedures. In some instances, the Company also obtains letters of credit from certain customers.

Credit sales, which are mainly on credit terms of 30 to 60 days, are only made to customers who meet the Company's credit requirements, while sales to new customers or customers with low credit ratings are usually made on an advance payment basis. The Company considers its trade accounts receivable to be of good credit quality because its key distributors and direct customers have long-standing business relationships with the Company and the Company has not experienced any significant bad debt write-offs of accounts receivable in the past. The Company closely monitors the aging of accounts receivable from its distributors and direct customers, and regularly reviews their financial positions, where available.

Summarized below are individual customers whose revenue or accounts receivable balances were 10% or higher than the respective total consolidated amounts:

	Three Months Ended March 31,				Nine Months Ended March 31,
Percentage of revenue	2022		2021		2022		2021
Customer A	24.2	%	30.2	%	24.8	%	29.1	%
Customer B	38.8	%	35.2	%	38.7	%	34.9	%

	March 31, 2022		June 30, 2021
Percentage of accounts receivable
Customer A	21.2	%	12.4	%
Customer B	20.4	%	22.1	%
Customer C	13.7	%	21.9	%
Customer D	12.8	%	*
Customer E	15.0	%	*

*Less than 10%

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Balance Sheet Components

9 Months Ended

Mar. 31, 2022

Balance Sheet Related Disclosures [Abstract]

Balance Sheet Components

Balance Sheet Components

The Company’s audited consolidated balance sheet at June 30, 2021, as reported, included the JV Company’s assets and liabilities, after intercompany eliminations. However, the JV Company's assets and liabilities were not included in the Company’s unaudited Condensed Consolidated Balance Sheet at March 31, 2022 due to the deconsolidation of the JV Company on December 2, 2021 as discussed in more detail in Note 1 above.

Accounts receivable, net:

	March 31, 2022		June 30, 2021
	(in thousands)
Accounts receivable	$	52,362	$	48,234
Less: Allowance for price adjustments	(13,125)		(12,415)
Less: Allowance for doubtful accounts	(30)		(30)
Accounts receivable, net	$	39,207	$	35,789

Inventories:

	March 31, 2022		June 30, 2021
	(in thousands)
Raw materials	$	54,435	$	68,900
Work in-process	67,132		68,824
Finished goods	21,971		16,569
	$	143,538	$	154,293

Other current assets:

	March 31, 2022		June 30, 2021
	(in thousands)
VAT receivable	$	550	$	1,539
Other prepaid expenses	4,098		1,465
Prepaid insurance	1,291		2,615
Prepaid maintenance	774		1,670
Prepayment to supplier	1,295		2,540
Prepaid income tax	3,052		2,221
Interest receivable	—		2,207
Customs deposit	—		270
Other receivables	638		68
	$	11,698	$	14,595

Property, plant and equipment, net:

	March 31, 2022		June 30, 2021
	(in thousands)
Land	$	4,877	$	4,877
Building	15,867		71,454
Manufacturing machinery and equipment	266,135		515,320
Equipment and tooling	26,113		27,017
Computer equipment and software	35,199		41,518
Office furniture and equipment	2,778		3,814
Leasehold improvements	35,226		74,733
Land use rights	—		9,319
	386,195		748,052
Less: accumulated depreciation	(228,437)		(348,749)
	157,758		399,303
Equipment and construction in progress	88,012		37,674
Property, plant and equipment, net	$	245,770	$	436,977

Intangible assets, net:

	March 31, 2022		June 30, 2021
	(in thousands)
Patents and technology rights	$	18,037	$	18,037
Trade name	268		268
Customer relationships	1,150		1,150
	19,455		19,455
Less: accumulated amortization	(8,834)		(6,314)
	10,621		13,141
Goodwill	269		269
Intangible assets, net	$	10,890	$	13,410

Estimated future minimum amortization expense of intangible assets is as follows (in thousands):

Year ending June 30,
2022 (Remaining)	$	840
2023	3,286
2024	3,249
2025	3,246
	$	10,621

Other long-term assets:

	March 31, 2022		June 30, 2021
	(in thousands)
Prepayments for property and equipment	$	18,500	$	14,882
Investment in a privately held company	100		100
Customs deposit	1,824		1,120
Deposit with supplier	6,396		—
Other long-term deposits	20		927
Office leases deposits	964		1,100
Other	1,661		740
	$	29,465	$	18,869

Accrued liabilities:

	March 31, 2022		June 30, 2021
	(in thousands)
Accrued compensation and benefits	$	25,550	$	32,756
Warranty accrual	2,483		2,795
Stock rotation accrual	4,207		3,917
Accrued professional fees	3,009		3,017
Accrued inventory	1,150		1,138
Accrued facilities related expenses	2,689		2,536
Accrued property, plant and equipment	8,664		8,688
Other accrued expenses	5,864		6,793
Customer deposit	35,111		7,139
ESPP payable	2,606		715
	$	91,333	$	69,494

The activities in the warranty accrual, included in accrued liabilities, are as follows:

	Nine Months Ended March 31,
	2022		2021
	(in thousands)
Beginning balance	$	2,795	$	709
Additions	949		338
Utilization	(1,261)		(211)
Ending balance	$	2,483	$	836

The activities in the stock rotation accrual, included in accrued liabilities, are as follows:

	Nine Months Ended March 31,
	2022		2021
	(in thousands)
Beginning balance	$	3,917	$	3,358
Additions	3,030		4,498
Utilization	(2,740)		(3,771)
Ending balance	$	4,207	$	4,085

Other long-term liabilities:

	March 31, 2022		June 30, 2021
	(in thousands)
Deferred payroll taxes	$	—	$	1,219
Customer deposits	72,384		42,000
Other	—		904
Other long-term liabilities	$	72,384	$	44,123

Customer deposits are payments received from customers for securing future product shipments. As of March 31, 2022, $62.4 million were from Customer A and Customer B, and $10.0 million were from other customers. As of June 30, 2021, $42.0 million were from Customer A and Customer B.

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Bank Borrowing Bank Borrowing

9 Months Ended

Mar. 31, 2022

Debt Disclosure [Abstract]

Bank Borrowing

Bank Borrowings

Short-term borrowings

In October 2019, the Company's subsidiary in China entered into a line of credit facility with Bank of Communications Limited in China. This line of credit matures on February 14, 2021 and is based on the China Base Rate multiplied by 1.05, or 4.99% on October 31, 2019. The purpose of the credit facility is to provide short-term borrowings. The Company could borrow up to approximately RMB 60.0 million or $8.5 million based on the currency exchange rate between the RMB and the U.S. Dollar on October 31, 2019. In September 2021, this line of credit was renewed with maximum borrowings up to RMB 140.0 million with the same terms and a maturity date of September 18, 2022. During the three months ended December 31, 2021, the Company borrowed RMB 11.0 million, or $1.7 million, at an interest rate of 3.85% per annum, with principal due on November 18, 2022. As of March 31, 2022, the total outstanding balance of this loan was $1.7 million.

On November 16, 2018, the Company's subsidiary in China entered into a line of credit facility with Industrial and Commercial Bank of China. The purpose of the credit facility was to provide short-term borrowings. The Company could borrow up to approximately RMB 72.0 million or $10.3 million based on currency exchange rate between RMB and U.S. Dollar on November 16, 2018. The RMB 72.0 million consists of RMB 27.0 million for trade borrowings with a maturity date of December 31, 2021, and RMB 45.0 million for working capital borrowings or trade borrowings with a maturity date of September 13, 2022. During the three months ended December 31, 2021, the Company borrowed RMB 5.0 million, or $0.8 million, at an interest rate of 3.7% per annum, with principal due on September 12, 2022. As of March 31, 2022, the total outstanding balance of this loan was $0.6 million.

Accounts Receivable Factoring Agreement

On August 9, 2019, one of the Company's wholly-owned subsidiaries (the “Borrower”) entered into a factoring agreement with the Hongkong and Shanghai Banking Corporation Limited (“HSBC”), whereby the Borrower assigns certain of its accounts receivable with recourse. This factoring agreement allows the Borrower to borrow up to 70% of the net amount of its eligible accounts receivable of the Borrower with a maximum amount of $30.0 million. The interest rate is based on one month London Interbank Offered Rate (“LIBOR”) plus 1.75% per annum. The Company is the guarantor for this agreement. The Company is accounting for this transaction as a secured borrowing under the Transfers and Servicing of Financial Assets guidance. In addition, any cash held in the restricted bank account controlled by HSBC has a legal right of offset against the borrowing. This agreement, with certain financial covenants required, has no expiration date. On August 11, 2021, the Borrower signed an agreement with HSBC to decrease the borrowing maximum amount to $8.0 million with certain financial covenants required. Other terms remain the same. As of March 31, 2022, the Borrower was in compliance with these covenants. As of March 31, 2022, there was no outstanding balance and the Company had unused credit of approximately $8.0 million.

Long-term debt

On August 18, 2021, Jireh Semiconductor Incorporated (“Jireh”) entered into a term loan agreement with a financial institution (the "Bank") in an amount up to $45.0 million for the purpose of expanding and upgrading the Company’s fabrication facility located in Oregon. The obligation under the loan agreement is secured by substantially all assets of Jireh and guaranteed by the Company. The agreement has a 5.5 year term and matures on February 16, 2027. Jireh is required to make consecutive quarterly payments of principal and interest. The loan accrues interest based on adjusted LIBOR plus the applicable margin based on the outstanding balance of the loan. This agreement contains customary restrictive covenants and includes certain financial covenants that the Company is required to maintain. Jireh drew down $45.0 million on February 16, 2022. As of March 31, 2022, Jireh was in compliance with these covenants and the outstanding balance of this loan was $45.0 million.

On May 1, 2018, Jireh entered into a loan agreement with the Bank that provided a term loan in the amount of $17.8 million. The obligation under the loan agreement is secured by certain real estate assets of Jireh and guaranteed by the Company.  The loan has a five-year term and matures on June 1, 2023. Beginning June 1, 2018, Jireh made consecutive monthly payments of principal and interest to the Bank. The outstanding principal accrues interest at a fixed rate of 5.04% per annum on the basis of a 360-day year. The loan agreement contains customary restrictive covenants and includes certain financial covenants that require the Company to maintain, on a consolidated basis, specified financial ratios. In August 2021, Jireh signed an amendment of this loan with the Bank to modify the financial covenants requirement to align with the new term loan agreement entered into on August 18, 2021 discussed above. The amendment was accounted for as a debt modification and no gain or loss was recognized. The Company was in compliance with these covenants as of March 31, 2022. As of March 31, 2022, the outstanding balance of the term loan was $14.4 million.

On August 15, 2017, Jireh entered into a credit agreement with the Bank that provided a term loan in an amount up to $30.0 million for the purpose of purchasing certain equipment for the Company’s fabrication facility located in Oregon.  The obligation under the credit agreement is secured by substantially all assets of Jireh and guaranteed by the Company.  The credit agreement has a five-year term and matures on August 15, 2022. In January 2018 and July 2018, Jireh drew down the loan in the amount of $13.2 million and $16.7 million, respectively. Beginning in October 2018, Jireh is required to pay to the Bank on each payment date, the outstanding principal amount of the loan in monthly installments.  The loan accrues interest based on an adjusted LIBOR as defined in the credit agreement, plus a specified applicable margin in the range of 1.75% to 2.25%, based on the outstanding balance of the loan.  The credit agreement contains customary restrictive covenants and includes certain financial covenants that require the Company to maintain, on a consolidated basis, specified financial ratios and fixed charge coverage ratio. In August 2021, Jireh signed an amendment of this loan with the Bank to modify the financial covenants requirement to align with the new term loan agreement entered into on August 18, 2021, discussed above. The amendment was accounted for as a debt modification and no gain or loss was recognized. The Company was in compliance with these covenants as of March 31, 2022. As of March 31, 2022, the outstanding balance of the term loan was $3.7 million.

Maturities of short-term debt and long-term debt were as follows (in thousands):

Year ending June 30,
2022 (Remaining)					$	2,085
2023					25,067
2024					9,000
2025					9,000
2026					9,000
Thereafter					11,250
Total principal					65,402
Less: debt issuance costs					(183)
Total principal, less debt issuance costs					$	65,219
	Short-term Debt		Long-term Debt		Total
Principal amount	$	11,403	$	53,999	$	65,402
Less: debt issuance costs	(71)		(112)		(183)
Total debt, less debt issuance costs	$	11,332	$	53,887	$	65,219

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Leases

9 Months Ended

Mar. 31, 2022

Leases [Abstract]

Leases

Leases

The Company evaluates contracts for lease accounting at contract inception and assesses lease classification at the lease commencement date. Operating leases are included in operating lease right-of-use (“ROU”) assets, operating lease liabilities and operating lease liabilities - long-term on the Company's Condensed Consolidated Balance Sheets. Finance leases are included in property, plant and equipment, finance lease liabilities and finance lease liabilities-long-term on the Condensed Consolidated Balance Sheets. The Company recognizes a ROU asset and corresponding lease obligation liability at the lease commencement date where the lease obligation liability is measured at the present value of the minimum lease payments. As most of the leases do not provide an implicit rate, the Company uses its incremental borrowing rate at lease commencement. The Company uses an interest rate commensurate with the interest rate to borrow on a collateralized basis over a similar term with an amount equal to the lease payments. Operating leases are primarily related to offices, research and development facilities, sales and marketing facilities, and manufacturing facilities. In addition, long-term supply agreements to lease gas tank equipment and purchase industrial gases are accounted for as operating leases. Lease agreements frequently include renewal provisions and require the Company to pay real estate taxes, insurance and maintenance costs. For operating leases, the amortization of the ROU asset and the accretion of its lease obligation liability result in a single straight-line expense recognized over the lease term. The finance lease is related to the $4.8 million of a machinery lease financing with a vendor. In addition, the finance lease related to the RMB 400.0 million of lease financing of the JV Company with YinHai Leasing Company and The Export-Import Bank of China was not included in the Company’s unaudited Condensed Consolidated Balance Sheet at March 31, 2022 due to the deconsolidation of the JV Company on December 2, 2021. The Company does not record leases on the Condensed Consolidated Balance Sheets with a term of one year or less.

The Company’s unaudited Condensed Consolidated Statements of Income for the three and nine months ended March 31, 2022 include the JV Company's results for the period through December 1, 2021, the day immediately preceding the deconsolidation. The components of the Company’s operating and finance lease expenses are as follows for the periods presented (in thousands):

	Nine Months Ended March 31,
	2022		2021
Operating leases:
Fixed rent expense	$	4,955	$	5,089
Variable rent expense	741		599
Finance lease:
Amortization of equipment	787		1,682
Interest	692		1,699
Short-term leases
Short-term lease expenses	144		164
Total lease expenses	$	7,319	$	9,233

Supplemental balance sheets information related to the Company’s operating and finance leases is as follows (in thousands, except lease term and discount rate):

	March 31, 2022			June 30, 2021
Operating Leases:
ROU assets associated with operating leases	$	24,971		$	34,660
Finance Lease:
Property, plant and equipment, gross	$	4,831		$	114,404
Accumulated depreciation	(15)			(96,470)
Property, plant and equipment, net	$	4,816		$	17,934
Weighted average remaining lease term (in years)
Operating leases	7.48			8.44
Finance lease	4.96			1.72
Weighted average discount rate
Operating leases	4.24		%	4.67		%
Finance lease	4.50		%	5.46		%

Supplemental cash flow information related to the Company’s operating and finance lease is as follows (in thousands):

	Nine Months Ended March 31,
	2022		2021
Cash paid from amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	4,965	$	4,721
Operating cash flows from finance lease	$	421	$	1,699
Financing cash flows from finance lease	$	4,176	$	12,267
Non-cash investing and financing information:
Operating lease right-of-use assets obtained in exchange for lease obligations	$	5,901	$	2,843

Future minimum lease payments are as follows as of March 31, 2022 (in thousands):

Year ending June 30,	Operating Leases		Finance Leases
The remainder of fiscal 2022	$	1,550	$	163
2023	5,382		1,074
2024	4,123		1,083
2025	3,254		1,083
2026	3,207		1,083
Thereafter	13,658		754
Total minimum lease payments	31,174		5,240
Less amount representing interest	(4,751)		(544)
Total lease liabilities	$	26,423	$	4,696

Leases

Leases

The Company evaluates contracts for lease accounting at contract inception and assesses lease classification at the lease commencement date. Operating leases are included in operating lease right-of-use (“ROU”) assets, operating lease liabilities and operating lease liabilities - long-term on the Company's Condensed Consolidated Balance Sheets. Finance leases are included in property, plant and equipment, finance lease liabilities and finance lease liabilities-long-term on the Condensed Consolidated Balance Sheets. The Company recognizes a ROU asset and corresponding lease obligation liability at the lease commencement date where the lease obligation liability is measured at the present value of the minimum lease payments. As most of the leases do not provide an implicit rate, the Company uses its incremental borrowing rate at lease commencement. The Company uses an interest rate commensurate with the interest rate to borrow on a collateralized basis over a similar term with an amount equal to the lease payments. Operating leases are primarily related to offices, research and development facilities, sales and marketing facilities, and manufacturing facilities. In addition, long-term supply agreements to lease gas tank equipment and purchase industrial gases are accounted for as operating leases. Lease agreements frequently include renewal provisions and require the Company to pay real estate taxes, insurance and maintenance costs. For operating leases, the amortization of the ROU asset and the accretion of its lease obligation liability result in a single straight-line expense recognized over the lease term. The finance lease is related to the $4.8 million of a machinery lease financing with a vendor. In addition, the finance lease related to the RMB 400.0 million of lease financing of the JV Company with YinHai Leasing Company and The Export-Import Bank of China was not included in the Company’s unaudited Condensed Consolidated Balance Sheet at March 31, 2022 due to the deconsolidation of the JV Company on December 2, 2021. The Company does not record leases on the Condensed Consolidated Balance Sheets with a term of one year or less.

The Company’s unaudited Condensed Consolidated Statements of Income for the three and nine months ended March 31, 2022 include the JV Company's results for the period through December 1, 2021, the day immediately preceding the deconsolidation. The components of the Company’s operating and finance lease expenses are as follows for the periods presented (in thousands):

	Nine Months Ended March 31,
	2022		2021
Operating leases:
Fixed rent expense	$	4,955	$	5,089
Variable rent expense	741		599
Finance lease:
Amortization of equipment	787		1,682
Interest	692		1,699
Short-term leases
Short-term lease expenses	144		164
Total lease expenses	$	7,319	$	9,233

Supplemental balance sheets information related to the Company’s operating and finance leases is as follows (in thousands, except lease term and discount rate):

	March 31, 2022			June 30, 2021
Operating Leases:
ROU assets associated with operating leases	$	24,971		$	34,660
Finance Lease:
Property, plant and equipment, gross	$	4,831		$	114,404
Accumulated depreciation	(15)			(96,470)
Property, plant and equipment, net	$	4,816		$	17,934
Weighted average remaining lease term (in years)
Operating leases	7.48			8.44
Finance lease	4.96			1.72
Weighted average discount rate
Operating leases	4.24		%	4.67		%
Finance lease	4.50		%	5.46		%

Supplemental cash flow information related to the Company’s operating and finance lease is as follows (in thousands):

	Nine Months Ended March 31,
	2022		2021
Cash paid from amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	4,965	$	4,721
Operating cash flows from finance lease	$	421	$	1,699
Financing cash flows from finance lease	$	4,176	$	12,267
Non-cash investing and financing information:
Operating lease right-of-use assets obtained in exchange for lease obligations	$	5,901	$	2,843

Future minimum lease payments are as follows as of March 31, 2022 (in thousands):

Year ending June 30,	Operating Leases		Finance Leases
The remainder of fiscal 2022	$	1,550	$	163
2023	5,382		1,074
2024	4,123		1,083
2025	3,254		1,083
2026	3,207		1,083
Thereafter	13,658		754
Total minimum lease payments	31,174		5,240
Less amount representing interest	(4,751)		(544)
Total lease liabilities	$	26,423	$	4,696

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Shareholders' Equity and Share-based Compensation

9 Months Ended

Mar. 31, 2022

Share-based Payment Arrangement, Noncash Expense [Abstract]

Shareholders' Equity and Share-based Compensation

Shareholders' Equity and Share-based Compensation

Share Repurchase

In September 2017, the Board of Directors approved a repurchase program (the “Repurchase Program”) that allowed the Company to repurchase its common shares from the open market pursuant to a pre-established Rule 10b5-1 trading plan or through privately negotiated transactions up to an aggregate of $30.0 million. The amount and timing of any repurchases under the Repurchase Program depend on a number of factors, including but not limited to, the trading price, volume and availability of the Company’s common shares. Shares repurchased under this program are accounted for as treasury shares and the total cost of shares repurchased is recorded as a reduction of shareholders' equity. From time to time, treasury shares may be reissued as part of the Company’s share-based compensation programs. Gains on re-issuance of treasury stock are credited to additional paid-in capital; losses are charged to additional paid-in capital to offset the net gains, if any, from previous sales or re-issuance of treasury stock. Any remaining balance of the losses is charged to retained earnings.

During the nine months ended March 31, 2022, the Company did not repurchase any shares pursuant to the Repurchase Program. Since the inception of the program, the Company repurchased an aggregate of 6,784,648 shares for a total cost of $67.3 million, at an average price of $9.92 per share, excluding fees and related expenses.  No repurchased shares have been retired. Of the 6,784,648 repurchased shares, 166,645 shares with a weighted average repurchase price of $10.07 per share, were reissued at an average price of $5.02 per share pursuant to option exercises and vested restricted share units (“RSU”). As of March 31, 2022, approximately $13.4 million remained available under the Repurchase Program.

Time-based Restricted Stock Units (“TRSU”)

The following table summarizes the Company's TRSU activities for the nine months ended March 31, 2022:

	Number of Restricted Stock Units	Weighted Average Grant Date Fair Value Per Share		Weighted Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value
Nonvested at June 30, 2021	1,053,524	$	21.60	1.73	$	32,016,594
Granted	563,681	$	46.10
Vested	(380,029)	$	20.01
Forfeited	(46,251)	$	23.14
Nonvested at March 31, 2022	1,190,925	$	33.64	1.92	$	65,084,051

Market-based Restricted Stock Units (“MSU”)

In December 2021, the Company granted 1.0 million market-based restricted stock units ("MSUs") to its certain personnel. The number of shares to be earned at the end of performance period is determined based on the Company’s achievement of specified stock prices and revenue thresholds during the performance period from January 1, 2022 to December 31, 2024 as well as the recipients remaining in continuous service with the Company through such period. The MSU vests in four equal annual installments after the end of performance period. The Company estimated the grant date fair values of its MSU with derived service periods of 4.1 to 7.1 years using a Monte-Carlo simulation model with the following assumptions: Risk-free interest rate of 1.0%, expected term of 3.1 years, expected volatility of 62.8% and dividend yield of 0%. The Company recorded approximately $2.0 million and $2.5 million of expenses for these MSUs during the three and nine months ended March 31, 2022, respectively.

During the quarter ended September 30, 2018, the Company granted 1.3 million MSUs to certain personnel. The number of shares to be earned at the end of performance period is determined based on the Company’s achievement of specified stock prices and revenue thresholds during the performance period from January 1, 2019 to December 31, 2021 as well as the recipients remaining in continuous service with the Company through such period. The MSUs vest in four equal annual installments after the end of the performance period. The Company estimated the grant date fair values of its MSUs using a Monte-Carlo simulation model. On August 31, 2020, the Compensation Committee of the Board approved a modification of the terms of MSU to (i) extend the performance period through December 31, 2022 and (ii) change the commencement date for the four-year time-based service period to January 1, 2023. The fair value of these MSUs was recalculated to reflect the change as of August 31, 2020 and the unrecognized compensation amount was adjusted to reflect the increase in fair value. The Company recorded approximately $0.4 million and

$1.2 million of expenses for MSUs during the three and nine months ended March 31, 2022, respectively, and approximately $0.3 million and $0.9 million during the three and the nine months ended March 31, 2021, respectively.

Performance-based Restricted Stock Units (“PRSUs”)

In March each year since year 2017, the Company granted PRSUs to certain personnel. The number of shares to be earned under the PRSUs is determined based on the level of attainment of predetermined financial goals. The PRSUs vest in four equal annual installments from the first anniversary date after the grant date if certain predetermined financial goals were met. The Company recorded approximately $1.0 million and $3.0 million of expense for these PRSUs during the three and nine months ended March 31, 2022, respectively and approximately $0.5 million and $1.3 million during the three and nine months ended March 31, 2021.

During the three months ended June 30, 2019, the Company announced an incentive program. Under this program, each participant’s award is denominated in stock and subject to achievement of certain objective goals within certain timelines. In June 2020, the Company believed it was most likely that predetermined goal measures would be met. Therefore, the Company reported such expenses in the other current liabilities line on the Condensed Consolidated Balance Sheets as the amount of bonus is to be settled in variable number of RSU’s at the completion of the objective goals. Such non-cash compensation expense was recorded as part of share-based compensation expense in the Condensed Consolidated Statements of Income. As of March 31, 2022 and June 30, 2021, the Company recorded nil and $0.1 million such expenses in the other current liabilities, respectively. The Company recorded nil and $0.3 million such non-cash compensation expense during the three and nine months ended March 31, 2022, respectively, and $0.8 million and $2.2 million during the three and nine months ended March 31, 2021, respectively. As of March 31, 2022, the Company granted RSUs valued at $4.0 million to participants, which were fully vested due to achievement of certain objective measures.

The following table summarizes the Company’s PRSUs activities for the nine months ended March 31, 2022:

	Number of Performance-based Restricted Stock Units	Weighted Average Grant Date Fair Value Per Share		Weighted Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value
Nonvested at June 30, 2021	353,824	$	22.69	1.74	$	10,752,711
Granted	194,000	$	48.65
Vested	(151,199)	$	19.44
Forfeited	(1,000)	$	16.22
Nonvested at March 31, 2022	395,625	$	36.68	2.11	$	21,620,906

Stock Options

The Company did not grant any stock options during the three and nine months ended March 31, 2022 and 2021. The following table summarizes the Company's stock option activities for the nine months ended March 31, 2022:

				Weighted
		Weighted		Average
		Average		Remaining
	Number of	Exercise Price		Contractual	Aggregate
	Shares	Per Share		Term (in years)	Intrinsic Value
Outstanding at June 30, 2021	487,875	$	7.99	2.32	$	10,928,653
Exercised	(93,000)	$	9.24
Outstanding at March 31, 2022	394,875	$	7.70	1.78	$	18,541,050
Options vested and expected to vest	394,875	$	7.70	1.78	$	18,541,050
Exercisable at March 31, 2022	394,875	$	7.70	1.78	$	18,541,050

Employee Share Purchase Plan (“ESPP”)

The assumptions used to estimate the fair values of common shares issued under the ESPP were as follows:

	Nine Months End March 31,
	2022
Volatility rate	66.4%
Risk-free interest rate	0.3%
Expected term	1.3 years
Dividend yield	0%

Share-based Compensation Expense

The total share-based compensation expense recognized in the Condensed Consolidated Statements of Income for the periods presented was as follows:

	Three Months Ended March 31,				Nine Months Ended March 31,
	2022		2021		2022		2021
	(in thousands)				(in thousands)
Cost of goods sold	$	1,282	$	427	$	3,560	$	1,195
Research and development	1,814		1,316		4,769		3,639
Selling, general and administrative	5,177		2,082		13,125		5,091
	$	8,273	$	3,825	$	21,454	$	9,925

As of March 31, 2022, total unrecognized compensation cost under the Company's equity plans was $86.2 million, which is expected to be recognized over a weighted-average period of 3.5 years.

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Income Taxes

9 Months Ended

Mar. 31, 2022

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The Company recognized income tax expense of approximately $2.9 million and $1.0 million for the three months ended March 31, 2022 and 2021, respectively. The income tax expense of $2.9 million for the three months ended March 31, 2022 included a $0.7 million discrete tax expense related to the Company’s $4.5 million of gain related to the revaluation of the Company’s equity interest in a joint venture. The income tax expense of $1.0 million for the three months ended March 31, 2021 included immaterial discrete tax. Excluding the $4.5 million revaluation gain and the $0.7 million of discrete income tax items, the effective tax rate for the three months ended March 31, 2022 and 2021 was 7.4% and 6.3%, respectively. The changes in the tax expense and effective tax rate between the periods resulted primarily from the Company reporting pretax book income of $34.5 million ($30.0 million of pretax book income excluding the $4.5 million of gain related to the revaluation of the Company’s equity interest in a joint venture) for the three months ended March 31, 2022 as compared to a pretax book income of $16.0 million for the three months ended March 31, 2021 as well as changes in the mix of earnings in various geographic jurisdictions between the current year and the same period of last year.

The Company recognized income tax expense of approximately $38.3 million and $2.7 million for the nine months ended March 31, 2022 and 2021, respectively. The income tax expense of $38.3 million for the nine months ended March 31, 2022 included a $33.5 million discrete tax expense related to the Company’s $396.0 million of income from the sale of equity interest in a joint venture and the related deconsolidation gain as the Company switches from the consolidation method of accounting to the equity method of accounting related to this investment and no longer asserts permanent reinvestment related to the Company’s investment in the joint venture as well as $0.1 million of other discrete income tax items. The income tax expense of $2.7 million for the nine months ended March 31, 2021 included a $0.04 million discrete tax benefit. Excluding the discrete income tax items ($396.0 million of income from the sale of equity interest in a joint venture and the related deconsolidation gain as well as other discrete items), the effective tax rate for the nine months ended March 31, 2022 and 2021 was 6.0% and 7.0%, respectively. The changes in the tax expense and effective tax rate between the periods resulted primarily from the Company reporting pretax book income of $476.4 million ($80.4 million of pretax book income excluding the $396.0 million of income from the sale of equity interest in a joint venture and the related deconsolidation gain) for the nine months ended March 31, 2022 as compared to a pretax book income of $39.0 million for the nine months ended March 31, 2021 as well as changes in the mix of earnings in various geographic jurisdictions between the current year and the same period of last year.

The Company files its income tax returns in the United States and in various foreign jurisdictions. The tax years 2001 to 2021 remain open to examination by U.S. federal and state tax authorities. The tax years 2013 to 2021 remain open to examination by foreign tax authorities.

The Company's income tax returns are subject to examinations by the Internal Revenue Service and other tax authorities in various jurisdictions. In accordance with the guidance on the accounting for uncertainty in income taxes, the Company regularly assesses the likelihood of adverse outcomes resulting from these examinations to determine the adequacy of its provision for income taxes. These assessments can require considerable estimates and judgments. As of March 31, 2022, the gross amount of unrecognized tax benefits was approximately $7.8 million, of which $4.8 million, if recognized, would reduce the effective income tax rate in future periods. If the Company's estimate of income tax liabilities proves to be less than the ultimate assessment, then a further charge to expense would be required. If events occur and the payment of these amounts ultimately proves to be unnecessary, the reversal of the liabilities would result in tax benefits being recognized in the period when the Company determines the liabilities are no longer necessary. The Company does not anticipate any material changes to its uncertain tax positions during the next twelve months.

“U.S. Consolidated Appropriations Act, 2021” (“CAA 2021”), Enacted December 27, 2020

On December 27, 2020, the United States enacted the Consolidated Appropriations Act, 2021, which made changes to existing U.S. tax laws. There was no material impact of the tax law changes included in the Consolidated Appropriations Act, 2021 to the Company.

“The American Rescue Plan Act of 2021”, Enacted March 11, 2021

On March 11, 2021, the United States enacted the American Rescue Plan Act of 2021, which made changes to existing U.S. tax laws. There was no material impact of the tax law changes included in the American Rescue Plan Act of 2021 to the Company.

On July 27, 2015, in Altera Corp. v. Commissioner, the U.S. Tax Court issued an opinion related to the treatment of stock-based compensation expense in an intercompany cost-sharing arrangement. In the July 2015 ruling, the Tax Court concluded that the sharing of the cost of employee stock compensation in a company’s cost-sharing arrangement was invalid under the U.S. Administrative Procedures Act. In June 2019, a panel of the Ninth Circuit of the U.S. Court of Appeals reversed this decision. In July 2019, Altera petitioned U.S. Court of Appeals for the Ninth Circuit to hold an en banc rehearing of the case. The petition was subsequently denied by the Ninth Circuit. Altera appealed the case to the U.S. Supreme Court in February 2020, but the U.S. Supreme Court declined to hear the case in June 2020, leaving intact the U.S. Court of Appeals for the Ninth Circuit’s decision. AOS has not recorded any benefit related to the Altera Corporation Tax Court decision in any period through March 2022. The Company will continue to monitor ongoing developments and potential impact to its financial statements

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Segment and Geographic Information

9 Months Ended

Mar. 31, 2022

Segment Reporting [Abstract]

Segment and Geographic Information

Segment and Geographic Information

The Company is organized as, and operates in, one operating segment: the design, development and supply of power semiconductor products for computing, consumer electronics, communication and industrial applications. The chief operating decision-maker is the Chief Executive Officer. The financial information presented to the Company’s Chief Executive Officer is on a consolidated basis, accompanied by information about revenue by customer and geographic region, for purposes of evaluating financial performance and allocating resources. The Company has one business segment, and there are no segment managers who are held accountable for operations, operating results and plans for products or components below the consolidated unit level. Accordingly, the Company reports as a single operating segment.

The Company sells its products primarily to distributors in the Asia Pacific region, who in turn sell these products to end customers. Because the Company’s distributors sell their products to end customers which may have a global presence, revenue by geographical location is not necessarily representative of the geographical distribution of sales to end user markets.

The revenue by geographical location in the following tables is based on the country or region in which the products were shipped to:

	Three Months Ended March 31,				Nine Months Ended March 31,
	2022		2021		2022		2021
	(in thousands)				(in thousands)
Hong Kong	$	164,555	$	139,167	$	472,399	$	396,879
China	31,883		28,110		91,958		74,250
South Korea	2,745		473		8,862		4,069
United States	3,534		1,088		9,004		3,683
Other countries	522		374		1,370		712
	$	203,239	$	169,212	$	583,593	$	479,593

During the three months ended March 31, 2022, the Company corrected an immaterial error to reduce revenues in Hong Kong by $0.5 million, and to increase the revenues in China and South Korea by $0.1 million and $0.4 million, respectively, for the three months ended March 31, 2021. During the nine months ended March 31, 2022, the Company corrected an immaterial error to reduce revenues in Hong Kong by $3.9 million, as well as to increase the revenues in China and South Korea by $0.2 million and $3.7 million, respectively, for the nine months ended March 31, 2021.

The following is a summary of revenue by product type:

	Three Months Ended March 31,				Nine Months Ended March 31,
	2022		2021		2022		2021
	(in thousands)				(in thousands)
Power discrete	$	140,572	$	122,615	$	406,235	$	355,487
Power IC	60,359		43,385		167,782		115,224
Packaging and testing services	2,308		3,212		9,576		8,882
	$	203,239	$	169,212	$	583,593	$	479,593

Long-lived assets, net consisting of property, plant and equipment and land use rights, net, as well as operating lease right-of-use assets, net by geographical area are as follows:

	March 31, 2022		June 30, 2021
	(in thousands)
China	$	96,679	$	350,387
United States	170,213		118,756
Other countries	3,849		2,494
	$	270,741	$	471,637

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Commitments and Contingencies

9 Months Ended

Mar. 31, 2022

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

Purchase Commitments

As of March 31, 2022 and June 30, 2021, the Company had approximately $106.6 million and $81.8 million, respectively, of outstanding purchase commitments primarily for purchases of semiconductor raw materials, wafers, spare parts, packaging and testing services and others.

As of March 31, 2022 and June 30, 2021, the Company had approximately $102.7 million and $90.0 million, respectively, of capital commitments for the purchase of property and equipment.

Other Commitments

        See Note 7 and Note 8 of the Notes to the Condensed Consolidated Financial Statements contained in this Quarterly Report on Form 10-Q for descriptions of commitments including bank borrowings and leases.

Contingencies and Indemnities

The Company has in the past, and may from time to time in the future, become involved in legal proceedings arising from the normal course of business activities.  The semiconductor industry is characterized by frequent claims and litigation, including claims regarding patent and other intellectual property rights as well as improper hiring practices. Irrespective of the validity of such claims, the Company could incur significant costs in the defense of such claims and suffer adverse effects on its operations.

In December 2019, the U.S. Department of Justice (“DOJ”) commenced an investigation into the Company's compliance with export control regulations relating to its business transactions with Huawei and its affiliates (“Huawei”), which were added to the “Entity List” maintained by the Department of Commerce (“DOC”) on May 16, 2019.  The Company is cooperating fully with federal authorities in the investigation, including responding to requests for documents, information and interviews from DOJ in connection with the investigation. The Company has maintained an export control compliance program and has been committed to comply fully with all applicable laws and regulations.  In connection with this investigation, DOC requested the Company to suspend shipments of its products to Huawei, and the Company complied with such request, and the Company has not shipped any product to Huawei after December 31, 2019.  The Company is currently working with DOC to resolve this issue.  Given the case is in still ongoing and neither DOJ nor DOC have provided the Company with any clear indication of the timing and schedule for the investigation, the Company cannot estimate the reasonably possible loss or range of loss that may occur.  Also, the Company is unable to predict the duration, scope, result or related costs of the investigation, although the Company expects to incur additional professional fees as a result of this matter.  In addition, the Company is unable to predict what, if any, further action that may be taken by the government in connection with the investigation, or what, if any, penalties, sanctions or remedial actions may be sought.

The Company is a party to a variety of agreements that it has contracted with various third parties. Pursuant to these agreements, the Company may be obligated to indemnify another party to such an agreement with respect to certain matters. Typically, these obligations arise in the context of contracts entered into by the Company, under which the Company customarily agrees to hold the other party harmless against losses arising from a breach of representations and covenants related to such matters as title to assets sold, certain intellectual property rights, specified environmental matters and certain income taxes. In these circumstances, payment by the Company is customarily conditioned on the other party making a claim pursuant

to the procedures specified in the particular contract, which procedures typically allow the Company to challenge the other party's claim. Further, the Company's obligations under these agreements may be limited in time and/or amount, and in some instances, the Company may have recourse against third parties for certain payments made by it under these agreements. The Company has not historically paid or recorded any material indemnifications, and no accrual was made at March 31, 2022 and June 30, 2021.

The Company has agreed to indemnify its directors and certain employees as permitted by law and pursuant to its Bye-laws, and has entered into indemnification agreements with its directors and executive officers. The Company has not recorded a liability associated with these indemnification arrangements, as it historically has not incurred any material costs associated with such indemnification obligations. Costs associated with such indemnification obligations may be mitigated by insurance coverage that the Company maintains. However, such insurance may not cover any, or may cover only a portion of, the amounts the Company may be required to pay. In addition, the Company may not be able to acquire, maintain or renew such insurance coverage in the future under favorable terms or at all.

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Cybersecutiy Incident	9 Months Ended
	Mar. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Cybersecurity Incident	Cybersecurity Incident In April 2022, the Company became aware of a cybersecurity incident involving unauthorized access to one email account at the Company, which caused the Company to make payments to unauthorized bank accounts. As a result, the Company recorded a loss of $1.5 million due to the incident for the three months ended March 31, 2022.

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The Company and Significant Accounting Policies (Policies)

9 Months Ended

Mar. 31, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Preparation

Basis of Preparation

The accompanying unaudited Condensed Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) for interim financial information and with the instructions to Article 10 of Securities and Exchange Commission Regulation S-X, as amended. They do not include all information and footnotes necessary for a fair presentation of financial position, results of operations and cash flows in conformity with U.S. GAAP for complete financial statements. These Condensed Consolidated Financial Statements should be read in conjunction with the consolidated financial statements and related notes contained in the Company’s Annual Report on Form 10-K for the fiscal year ended June 30, 2021. All significant intercompany balances and transactions have been eliminated in consolidation. In the opinion of management, all adjustments (consisting of normal recurring adjustments and accruals) considered necessary for a fair presentation of the results of operations for the periods presented have been included in the interim periods. Operating results for the nine months ended March 31, 2022 are not necessarily indicative of the results that may be expected for the fiscal year ending June 30, 2022 or any other interim period. The consolidated balance sheet at June 30, 2021 is derived from the audited financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended June 30, 2021.

Reclassification

The Company has reclassified certain amounts previously reported in its financial statements to conform to the current presentation. These reclassifications did not have a material impact on our Condensed Consolidated Financial Statements. See Note 11.

Joint Venture

The Joint Venture was accounted under the provisions of the consolidation guidance since the Company had controlling financial interest until December 1, 2021.

Risks and Uncertainties

Certain Significant Risks and Uncertainties Related to Outbreak of Coronavirus Disease 2019 (“COVID-19”)

The COVID-19 pandemic has had and continues to have a negative impact on business and economic activities across the globe. As a result of the COVID-19 pandemic and the global economic downturn and changing consumer behaviors due to various restrictions imposed by governments, the Company has experienced shifting market trends, including an increasing demand in the markets for notebooks, PCs and gaming devices and decreasing demand for mobile phone and industrial products, as more consumers are staying at and working from home. While the Company has recently benefited from the increasing demand of consumer electronics and PC related products, there is no guarantee that this trend will continue, and such increasing demand may discontinue or decline as government authorities relax and terminate COVID-19 related restrictions and consumer behaviors change. Furthermore, as the COVID-19 pandemic continues and global economic downturn and high unemployment persists, consumer spending may slow down substantially, in which case the Company may experience a significant decline of customer orders for its products, including those designed for PC-related applications, and such decline will adversely affect its financial conditions and results of operations. The full extent of the future impact of the COVID-19 pandemic on the Company’s operational and financial performance is uncertain and will depend on many factors outside the Company’s control, including, without limitation, the timing, extent, trajectory and duration of the pandemic; the availability, distribution and effectiveness of vaccines; the spread of new variants of COVID-19; the continued or renewed imposition of protective public safety measures and government mandates; the continuing disruption of global supply chain affecting the semiconductor industry; and the impact of the pandemic on the global economy and demand for consumer products.

In April 2022, the operations of our two packaging and testing facilities in Shanghai, China were suspended due to a strict lockdown of the city imposed by the local government in response to surging COVID cases. Our facilities in Shanghai were required to shut down and production was halted beginning in mid-April. Transportation suspension in and out of Shanghai also interrupted the shipping of raw materials and finished parts to and from our facilities. We have been working closely with factory management to separate non-infected employees from infected employees, perform regular COVID-19 testing, and secure food, water, and other necessary supplies to support employees who have been affected. In addition, we have been working with local authorities to obtain permission to reopen the facilities, and as of the date of this Form 10-Q, we have received permission to reopen our facilities partially under a “closed-loop” arrangement. Under this arrangement, some of our employees are allowed to live and work on the premises. However, the pace at which we can resume full operations remains challenging due to difficulties in bringing back our workforce to the facilities, procuring certain raw materials and resolving logistical bottlenecks. Currently we intend to gradually ramp up production at these facilities in May and return to normal operation in June 2022, assuming no additional restriction and lockdown are imposed by the government. Furthermore, while we seek to secure alternative sources of packaging capacity from third-party providers to mitigate the loss of in-house packaging capacity, there is no guarantee that such sources are available. Even if alternative sources are available, it will be difficult to complete the transition to a new supplier efficiently and timely, and we currently do not expect to secure sufficient third-party sources to substitute or replace fully our in-house packaging and testing capacity. The suspension of our Shanghai facilities, and the subsequent partial resumption of production, reduces our ability to complete orders from our customers in a timely manner, or at all, which is expected to adversely affect our revenue and results of operation for the three months ending June 30, 2022. It is uncertain how long the Shanghai government intends to impose a shutdown, and even when lifted, the government may reimpose strict zero-positive-case requirements and lockdown. It is not possible to predict at this time the ultimate duration of these restrictions or the impact on financial results in the near-term.

Use of Estimates

Use of EstimatesThe preparation of the Condensed Consolidated Financial Statements in conformity with U.S. GAAP requires the Company to make estimates, judgments and assumptions that affect the reported amounts of assets, liabilities, revenue and expenses. To the extent there are material differences between these estimates and actual results, the Company's Condensed Consolidated Financial Statements will be affected. On an ongoing basis, the Company evaluates the estimates, judgments and assumptions including those related to stock rotation returns, price adjustments, allowance for doubtful accounts, inventory reserves, warranty accrual, income taxes, leases, share-based compensation, recoverability of and useful lives for property, plant and equipment and intangible assets, as well as the economic implications of the COVID-19 pandemic.

Leases

Leases

The Company determines if an arrangement is a lease at inception. Operating leases are included in operating lease right-of-use (“ROU”) assets, current operating lease liabilities and long-term operating lease liabilities on the Company's Condensed Consolidated Balance Sheets. Finance leases are included in property, plant and equipment, finance lease liabilities and long-term finance leases liabilities on the Condensed Consolidated Balance Sheets.

Operating lease ROU assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. The Company uses an estimate of its incremental borrowing rate based on the information available at the lease commencement date. The operating lease ROU assets also include any lease payments made and exclude lease incentives. Lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise such options. Operating lease expense is generally recognized on a straight-line basis over the lease term. Variable lease payments are expensed as incurred and are not included within the operating lease ROU asset and lease liability calculation. The Company does not record leases on the Condensed Consolidated Balance Sheet with a term of one year or less. The Company elected to combine its lease and non-lease components as a single lease component for all asset classes.

Revenue recognition

Revenue recognition

The Company determines revenue recognition through the following steps: (1) identification of the contract with a customer; (2) identification of the performance obligations in the contract; (3) determination of the transaction price; (4) allocation of the transaction price to the performance obligations in the contract; and (5) recognition of revenue when, or as, a performance obligation is satisfied. The Company recognizes product revenue at a point in time when product is shipped to the customer, net of estimated stock rotation returns and price adjustments that it expects to provide to certain distributors. The Company presents revenue net of sales taxes and any similar assessments. Our standard payment terms range from 30 to 60 days.

The Company sells its products primarily to distributors, who in turn sell the products globally to various end customers. The Company allows stock rotation returns from certain distributors. Stock rotation returns are governed by contract and are limited to a specified percentage of the monetary value of products purchased by distributors during a specified period. The Company records an allowance for stock rotation returns based on historical returns and individual distributor agreements. The Company also provides special pricing to certain distributors, primarily based on volume, to encourage resale of the Company’s products. Allowance for price adjustments is recorded against accounts receivable and the provision for stock rotation rights is included in accrued liabilities on the Condensed Consolidated Balance Sheets.

The Company’s performance obligations relate to contracts with a duration of less than one year. The Company elected to apply the practical expedient provided in ASC 606, “Revenue from Contracts with Customers”. Therefore, the Company is not required to disclose the aggregate amount of transaction price allocated to performance obligations that are unsatisfied or partially unsatisfied at the end of the reporting period.

The Company recognizes the incremental direct costs of obtaining a contract, which consist of sales commissions, when control over the products they relate to transfers to the customer. Applying the practical expedient, the Company recognizes commissions as expense when incurred, as the amortization period of the commission asset the Company would have otherwise recognized is less than one year.

Packaging and testing services revenue is recognized at a point in time upon shipment of serviced products to the customer.

Share-based Compensation Expense

Share-based Compensation ExpenseThe Company maintains an equity-settled, share-based compensation plan to grant restricted share units and stock options. The Company recognizes expense related to share-based compensation awards that are ultimately expected to vest based on estimated fair values on the date of grant. The fair value of restricted share units is based on the fair value of the Company's common share on the date of grant. For restricted stock awards subject to market conditions, the fair value of each restricted stock award is estimated at the date of grant using the Monte-Carlo pricing model. The fair value of stock options is estimated on the date of grant using the Black-Scholes option valuation model. Share-based compensation expense is recognized on the accelerated attribution basis over the requisite service period of the award, which generally equals the vesting period. The Employee Share Purchase Plan (the “ESPP”) is accounted for at fair value on the date of grant using the Black-Scholes option valuation model.

Restricted Cash

Restricted CashThe Company maintains restricted cash in connection with cash balances temporarily restricted for regular business operations, including the possibility of a dispute with a vendor. In addition, as a condition of certain loan agreement, the Company was required to keep a compensating balance at the issuing bank. These balances have been excluded from the Company’s cash and cash equivalents balance and are classified as restricted cash in the Company’s Condensed Consolidated Balance Sheets.

Fair Value of Financial Instruments

Fair Value of Financial Instruments

The fair value of cash equivalents is categorized in Level 1 in the fair value hierarchy. Cash equivalents consist primarily of short-term bank deposits. The carrying values of financial instruments such as cash and cash equivalents, accounts receivable and accounts payable approximate their carrying values due to their short-term maturities. The carrying value of the Company's debt is considered a reasonable estimate of fair value which is estimated by considering the current rates available to the Company for debt of the same remaining maturities, structure, credit risk and terms of the debts.

Government Grants

Government Grants

The Company occasionally receives government grants that provide financial assistance for certain eligible expenditures in China. These grants include reimbursements on interest expense on bank borrowings, payroll tax credits, credit for property, plant and equipment in a particular geographical location, employment credits, as well as business expansion credits. Government grants are not recognized until there is reasonable assurance that the Company will comply with the conditions

attaching to it, and that the grant will be received. The Company records such grants either as a reduction of the related expense, a reduction of the cost of the related asset, or as other income depending upon the nature of the grant.

Long-lived Assets

Long-lived AssetsThe Company evaluates its long-lived assets for impairment whenever events or changes indicate that the carrying amount of such assets may not be recoverable. Due to the COVID-19 pandemic, the Company assessed the changes in circumstances that occurred during the March and June 2020 quarters. These factors included continued operating losses, a decrease in the Company's share price in February and March of 2020, which reduced its market capitalization, expectation of lower business growth for the coming quarters, increased and prolonged economic and regulatory uncertainty in the global economies, and the expectation of higher supply chain costs and increased competition. Therefore, the Company performed a recoverability test by comparing the sum of the estimated undiscounted future cash flows of its long-lived assets to their carrying amount as of June 30, 2020. Some of the more significant assumptions used in the estimated future cash flows involve net sales, cost of goods sold, operating expenses, working capital, capital expenditures, income tax rates, long-term growth rates that appropriately reflect the risks inherent in the future cash flow stream and terminal value. The Company selected the assumptions used in the financial forecasts by referencing to historical data, supplemented by current and anticipated market conditions, estimated product growth rates and management's plans. These estimated future cash flows were consistent with those the Company uses in its internal planning. The result of the recoverability test indicated that the sum of the expected future cash flows (undiscounted and without interest charges) was greater than the carrying amount of the long-lived assets. Since this recoverability test was performed during fiscal 2020, circumstances have improved such that there are no indicators that the Company’s long-lived assets may not be recoverable.

Comprehensive Income (Loss)

Comprehensive Income Comprehensive income is defined as the change in equity of a business enterprise during a period from transactions and other events and circumstances from non-owner sources. The Company's accumulated other comprehensive income consists of cumulative foreign currency translation adjustments. Total comprehensive income is presented in the Condensed Consolidated Statements of Comprehensive Income.

Recent Accounting Pronouncements

Recent Accounting Pronouncements

Recently Issued Accounting Standards not yet adopted

In November 2021, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2021-10, Government Assistance (Topic 832): Disclosures by Business Entities about Government Assistance. This ASU requires business entities to make annual disclosures about transactions with a government they account for by analogizing to a grant or contribution accounting model under ASC 958-605. The ASU is effective for all entities within their scope for

financial statements issued for annual periods beginning after December 15, 2021. The Company does not expect the adoption of this guidance will have a material impact on its consolidated financial position, results of operations or cash flows.

In August 2020, the FASB issued ASU No. 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity, which, among other things, provides guidance on how to account for contracts on an entity’s own equity. This ASU simplifies the accounting for certain financial instruments with characteristics of liabilities and equity. Specifically, the ASU eliminated the need for the Company to assess whether a contract on the entity’s own equity (1) permits settlement in unregistered shares, (2) whether counterparty rights rank higher than shareholder’s rights, and (3) whether collateral is required. In addition, the ASU requires incremental disclosure related to contracts on the entity’s own equity and clarifies the treatment of certain financial instruments accounted for under this ASU on earnings per share. For public business entities, the ASU is effective for fiscal years beginning after December 15, 2021, and interim periods within those fiscal years. The Company does not expect the adoption of this guidance will have a material impact on its consolidated financial position, results of operations or cash flows.

Recently Adopted Accounting Standards

In January 2020, the FASB issued ASU No. 2020-01, “Investments - Equity Securities (Topic 321), Investments - Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815) - Clarifying the Interactions between Topic 321, Topic 323, and Topic 815.” The ASU is based on a consensus of the Emerging Issues Task Force and is expected to increase comparability in accounting for these transactions. ASU 2016-01 made targeted improvements to accounting for financial instruments, including providing an entity the ability to measure certain equity securities without a readily determinable fair value at cost, less any impairment, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer. Among other topics, the amendments clarify that an entity should consider observable transactions that require it to either apply or discontinue the equity method of accounting. The adoption of ASU 2020-01 had no material impact on the Company's Consolidated Financial Statements.

In December 2019, the FASB issued ASU No. 2019-12 “Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes ("ASU 2019-12") by removing certain exceptions to the general principles. The Company adopted ASU 2019-12 as of July 1, 2021. ASU 2019-12 had no material impact on the Company's Consolidated Financial Statements.

Concentration of Credit Risk

The Company manages its credit risk associated with exposure to distributors and direct customers on outstanding accounts receivable through the application and review of credit approvals, credit ratings and other monitoring procedures. In some instances, the Company also obtains letters of credit from certain customers.

Credit sales, which are mainly on credit terms of 30 to 60 days, are only made to customers who meet the Company's credit requirements, while sales to new customers or customers with low credit ratings are usually made on an advance payment basis. The Company considers its trade accounts receivable to be of good credit quality because its key distributors and direct customers have long-standing business relationships with the Company and the Company has not experienced any significant bad debt write-offs of accounts receivable in the past. The Company closely monitors the aging of accounts receivable from its distributors and direct customers, and regularly reviews their financial positions, where available.

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Equity Method Investment in Equity Investee (Tables)

9 Months Ended

Mar. 31, 2022

Discontinued Operations and Disposal Groups [Abstract]

Schedule of deconsolidation

The gain on deconsolidation of the JV Company was calculated as follows:

	(in thousands)
Cash received for sales of shares in the JV Company	$	16,924
Fair value of retained equity method investment	393,124
Carrying amount of non-controlling interest	143,889
Cumulative translation adjustment removal	1,793
Carrying amount of net assets of the JV Company at December 1, 2021	(156,637)
Gain on deconsolidation of the JV Company	$	399,093

The net loss associated with these sales of JV Company equity interest held by the Company were recorded in the nine months ended March 31, 2022 as follows:

	(in thousands)
Gain on 1.1% equity interest sold	$	475
Loss on diluted equity interest from issuance of shares under the employee equity incentive plan	(8,116)
Gain on 7.82% equity interest sold	4,501
Loss on changes on equity interest of the JV Company, net	$	(3,140)

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Net Income Per Common Share Attributable to Alpha and Omega Semiconductor Limited - (Tables)

9 Months Ended

Mar. 31, 2022

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following table presents the calculation of basic and diluted net income per share attributable to common shareholders:

	Three Months Ended March 31,				Nine Months Ended March 31,
	2022		2021		2022		2021
	(in thousands, except per share data)
Numerator:
Net income attributable to Alpha and Omega Semiconductor Limited	$	31,650	$	16,100	$	438,072	$	38,577
Denominator:
Basic:
Weighted average number of common shares used to compute basic net income per share	26,829		25,882		26,596		25,631
Diluted:
Weighted average number of common shares used to compute basic net income per share	26,829		25,882		26,596		25,631
Effect of potentially dilutive securities:
Stock options, RSUs and ESPP shares	1,594		1,834		1,520		1,497
Weighted average number of common shares used to compute diluted net income per share	28,423		27,716		28,116		27,128
Net income per share attributable to Alpha and Omega Semiconductor Limited:
Basic	$	1.18	$	0.62	$	16.47	$	1.51
Diluted	$	1.11	$	0.58	$	15.58	$	1.42

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following potential dilutive securities were excluded from the computation of diluted net income per share as their effect would have been anti-dilutive:

	Three Months Ended March 31,		Nine Months Ended March 31,
	2022	2021	2022	2021
	(in thousands)		(in thousands)
Employee stock options and RSUs	2	107	171	80
ESPP	19	—	27	89
Total potential dilutive securities	21	107	198	169

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Concentration of Credit Risk and Significant Customers (Tables)

9 Months Ended

Mar. 31, 2022

Risks and Uncertainties [Abstract]

Schedules of Concentration of Risk, by Risk Factor

Summarized below are individual customers whose revenue or accounts receivable balances were 10% or higher than the respective total consolidated amounts:

	Three Months Ended March 31,				Nine Months Ended March 31,
Percentage of revenue	2022		2021		2022		2021
Customer A	24.2	%	30.2	%	24.8	%	29.1	%
Customer B	38.8	%	35.2	%	38.7	%	34.9	%

	March 31, 2022		June 30, 2021
Percentage of accounts receivable
Customer A	21.2	%	12.4	%
Customer B	20.4	%	22.1	%
Customer C	13.7	%	21.9	%
Customer D	12.8	%	*
Customer E	15.0	%	*

*Less than 10%

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Balance Sheet Components (Tables)

9 Months Ended

Mar. 31, 2022

Balance Sheet Related Disclosures [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable

Accounts receivable, net:

	March 31, 2022		June 30, 2021
	(in thousands)
Accounts receivable	$	52,362	$	48,234
Less: Allowance for price adjustments	(13,125)		(12,415)
Less: Allowance for doubtful accounts	(30)		(30)
Accounts receivable, net	$	39,207	$	35,789

Schedule of Inventory, Current

Inventories:

	March 31, 2022		June 30, 2021
	(in thousands)
Raw materials	$	54,435	$	68,900
Work in-process	67,132		68,824
Finished goods	21,971		16,569
	$	143,538	$	154,293

Other Current Assets

Other current assets:

	March 31, 2022		June 30, 2021
	(in thousands)
VAT receivable	$	550	$	1,539
Other prepaid expenses	4,098		1,465
Prepaid insurance	1,291		2,615
Prepaid maintenance	774		1,670
Prepayment to supplier	1,295		2,540
Prepaid income tax	3,052		2,221
Interest receivable	—		2,207
Customs deposit	—		270
Other receivables	638		68
	$	11,698	$	14,595

Property, Plant and Equipment

Property, plant and equipment, net:

	March 31, 2022		June 30, 2021
	(in thousands)
Land	$	4,877	$	4,877
Building	15,867		71,454
Manufacturing machinery and equipment	266,135		515,320
Equipment and tooling	26,113		27,017
Computer equipment and software	35,199		41,518
Office furniture and equipment	2,778		3,814
Leasehold improvements	35,226		74,733
Land use rights	—		9,319
	386,195		748,052
Less: accumulated depreciation	(228,437)		(348,749)
	157,758		399,303
Equipment and construction in progress	88,012		37,674
Property, plant and equipment, net	$	245,770	$	436,977

Intangible Assets Disclosure

Intangible assets, net:

	March 31, 2022		June 30, 2021
	(in thousands)
Patents and technology rights	$	18,037	$	18,037
Trade name	268		268
Customer relationships	1,150		1,150
	19,455		19,455
Less: accumulated amortization	(8,834)		(6,314)
	10,621		13,141
Goodwill	269		269
Intangible assets, net	$	10,890	$	13,410

Schedule Future Amortization Expense of Intangible Assets

Estimated future minimum amortization expense of intangible assets is as follows (in thousands):

Year ending June 30,
2022 (Remaining)	$	840
2023	3,286
2024	3,249
2025	3,246
	$	10,621

Schedule of Other Assets, Noncurrent

Other long-term assets:

	March 31, 2022		June 30, 2021
	(in thousands)
Prepayments for property and equipment	$	18,500	$	14,882
Investment in a privately held company	100		100
Customs deposit	1,824		1,120
Deposit with supplier	6,396		—
Other long-term deposits	20		927
Office leases deposits	964		1,100
Other	1,661		740
	$	29,465	$	18,869

Schedule of Accrued Liabilities

Accrued liabilities:

	March 31, 2022		June 30, 2021
	(in thousands)
Accrued compensation and benefits	$	25,550	$	32,756
Warranty accrual	2,483		2,795
Stock rotation accrual	4,207		3,917
Accrued professional fees	3,009		3,017
Accrued inventory	1,150		1,138
Accrued facilities related expenses	2,689		2,536
Accrued property, plant and equipment	8,664		8,688
Other accrued expenses	5,864		6,793
Customer deposit	35,111		7,139
ESPP payable	2,606		715
	$	91,333	$	69,494

Schedule of Product Warranty Liability

The activities in the warranty accrual, included in accrued liabilities, are as follows:

	Nine Months Ended March 31,
	2022		2021
	(in thousands)
Beginning balance	$	2,795	$	709
Additions	949		338
Utilization	(1,261)		(211)
Ending balance	$	2,483	$	836

Stock Rotation Accrual

The activities in the stock rotation accrual, included in accrued liabilities, are as follows:

	Nine Months Ended March 31,
	2022		2021
	(in thousands)
Beginning balance	$	3,917	$	3,358
Additions	3,030		4,498
Utilization	(2,740)		(3,771)
Ending balance	$	4,207	$	4,085

Other Long-Term Liabilities

Other long-term liabilities:

	March 31, 2022		June 30, 2021
	(in thousands)
Deferred payroll taxes	$	—	$	1,219
Customer deposits	72,384		42,000
Other	—		904
Other long-term liabilities	$	72,384	$	44,123

Customer deposits are payments received from customers for securing future product shipments. As of March 31, 2022, $62.4 million were from Customer A and Customer B, and $10.0 million were from other customers. As of June 30, 2021, $42.0 million were from Customer A and Customer B.

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Bank Borrowing (Tables)

9 Months Ended

Mar. 31, 2022

Debt Disclosure [Abstract]

Schedule of Maturities

Maturities of short-term debt and long-term debt were as follows (in thousands):

Year ending June 30,
2022 (Remaining)					$	2,085
2023					25,067
2024					9,000
2025					9,000
2026					9,000
Thereafter					11,250
Total principal					65,402
Less: debt issuance costs					(183)
Total principal, less debt issuance costs					$	65,219
	Short-term Debt		Long-term Debt		Total
Principal amount	$	11,403	$	53,999	$	65,402
Less: debt issuance costs	(71)		(112)		(183)
Total debt, less debt issuance costs	$	11,332	$	53,887	$	65,219

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Leases - (Tables)

9 Months Ended

Mar. 31, 2022

Leases [Abstract]

Components of Operating and Finance Lease Costs

The components of the Company’s operating and finance lease expenses are as follows for the periods presented (in thousands):

	Nine Months Ended March 31,
	2022		2021
Operating leases:
Fixed rent expense	$	4,955	$	5,089
Variable rent expense	741		599
Finance lease:
Amortization of equipment	787		1,682
Interest	692		1,699
Short-term leases
Short-term lease expenses	144		164
Total lease expenses	$	7,319	$	9,233

Supplemental cash flow information related to the Company’s operating and finance lease is as follows (in thousands):

	Nine Months Ended March 31,
	2022		2021
Cash paid from amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	4,965	$	4,721
Operating cash flows from finance lease	$	421	$	1,699
Financing cash flows from finance lease	$	4,176	$	12,267
Non-cash investing and financing information:
Operating lease right-of-use assets obtained in exchange for lease obligations	$	5,901	$	2,843

Schedule of Lease Assets and Liabilities

Supplemental balance sheets information related to the Company’s operating and finance leases is as follows (in thousands, except lease term and discount rate):

	March 31, 2022			June 30, 2021
Operating Leases:
ROU assets associated with operating leases	$	24,971		$	34,660
Finance Lease:
Property, plant and equipment, gross	$	4,831		$	114,404
Accumulated depreciation	(15)			(96,470)
Property, plant and equipment, net	$	4,816		$	17,934
Weighted average remaining lease term (in years)
Operating leases	7.48			8.44
Finance lease	4.96			1.72
Weighted average discount rate
Operating leases	4.24		%	4.67		%
Finance lease	4.50		%	5.46		%

Schedule of Operating Lease Future Minimum Lease Payments (Topic 842)

Future minimum lease payments are as follows as of March 31, 2022 (in thousands):

Year ending June 30,	Operating Leases		Finance Leases
The remainder of fiscal 2022	$	1,550	$	163
2023	5,382		1,074
2024	4,123		1,083
2025	3,254		1,083
2026	3,207		1,083
Thereafter	13,658		754
Total minimum lease payments	31,174		5,240
Less amount representing interest	(4,751)		(544)
Total lease liabilities	$	26,423	$	4,696

Schedule of Finance Lease Future Minimum Lease Payments (Topic 842)

Future minimum lease payments are as follows as of March 31, 2022 (in thousands):

Year ending June 30,	Operating Leases		Finance Leases
The remainder of fiscal 2022	$	1,550	$	163
2023	5,382		1,074
2024	4,123		1,083
2025	3,254		1,083
2026	3,207		1,083
Thereafter	13,658		754
Total minimum lease payments	31,174		5,240
Less amount representing interest	(4,751)		(544)
Total lease liabilities	$	26,423	$	4,696

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Shareholders' Equity and Share-based Compensation (Tables)

9 Months Ended

Mar. 31, 2022

Share-based Payment Arrangement, Noncash Expense [Abstract]

Restricted Stock Units Activity

Time-based Restricted Stock Units (“TRSU”)

The following table summarizes the Company's TRSU activities for the nine months ended March 31, 2022:

	Number of Restricted Stock Units	Weighted Average Grant Date Fair Value Per Share		Weighted Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value
Nonvested at June 30, 2021	1,053,524	$	21.60	1.73	$	32,016,594
Granted	563,681	$	46.10
Vested	(380,029)	$	20.01
Forfeited	(46,251)	$	23.14
Nonvested at March 31, 2022	1,190,925	$	33.64	1.92	$	65,084,051

The following table summarizes the Company’s PRSUs activities for the nine months ended March 31, 2022:

	Number of Performance-based Restricted Stock Units	Weighted Average Grant Date Fair Value Per Share		Weighted Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value
Nonvested at June 30, 2021	353,824	$	22.69	1.74	$	10,752,711
Granted	194,000	$	48.65
Vested	(151,199)	$	19.44
Forfeited	(1,000)	$	16.22
Nonvested at March 31, 2022	395,625	$	36.68	2.11	$	21,620,906

Summary of Stock Option Activities

The following table summarizes the Company's stock option activities for the nine months ended March 31, 2022:

				Weighted
		Weighted		Average
		Average		Remaining
	Number of	Exercise Price		Contractual	Aggregate
	Shares	Per Share		Term (in years)	Intrinsic Value
Outstanding at June 30, 2021	487,875	$	7.99	2.32	$	10,928,653
Exercised	(93,000)	$	9.24
Outstanding at March 31, 2022	394,875	$	7.70	1.78	$	18,541,050
Options vested and expected to vest	394,875	$	7.70	1.78	$	18,541,050
Exercisable at March 31, 2022	394,875	$	7.70	1.78	$	18,541,050

Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions

The assumptions used to estimate the fair values of common shares issued under the ESPP were as follows:

	Nine Months End March 31,
	2022
Volatility rate	66.4%
Risk-free interest rate	0.3%
Expected term	1.3 years
Dividend yield	0%

Share-based Compensation, Allocation of Recognized Period Costs

Share-based Compensation Expense

The total share-based compensation expense recognized in the Condensed Consolidated Statements of Income for the periods presented was as follows:

	Three Months Ended March 31,				Nine Months Ended March 31,
	2022		2021		2022		2021
	(in thousands)				(in thousands)
Cost of goods sold	$	1,282	$	427	$	3,560	$	1,195
Research and development	1,814		1,316		4,769		3,639
Selling, general and administrative	5,177		2,082		13,125		5,091
	$	8,273	$	3,825	$	21,454	$	9,925

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Segment and Geographic Information (Tables)

9 Months Ended

Mar. 31, 2022

Segment Reporting [Abstract]

Disaggregation of Revenue

The Company sells its products primarily to distributors in the Asia Pacific region, who in turn sell these products to end customers. Because the Company’s distributors sell their products to end customers which may have a global presence, revenue by geographical location is not necessarily representative of the geographical distribution of sales to end user markets.

The revenue by geographical location in the following tables is based on the country or region in which the products were shipped to:

	Three Months Ended March 31,				Nine Months Ended March 31,
	2022		2021		2022		2021
	(in thousands)				(in thousands)
Hong Kong	$	164,555	$	139,167	$	472,399	$	396,879
China	31,883		28,110		91,958		74,250
South Korea	2,745		473		8,862		4,069
United States	3,534		1,088		9,004		3,683
Other countries	522		374		1,370		712
	$	203,239	$	169,212	$	583,593	$	479,593

During the three months ended March 31, 2022, the Company corrected an immaterial error to reduce revenues in Hong Kong by $0.5 million, and to increase the revenues in China and South Korea by $0.1 million and $0.4 million, respectively, for the three months ended March 31, 2021. During the nine months ended March 31, 2022, the Company corrected an immaterial error to reduce revenues in Hong Kong by $3.9 million, as well as to increase the revenues in China and South Korea by $0.2 million and $3.7 million, respectively, for the nine months ended March 31, 2021.

The following is a summary of revenue by product type:

	Three Months Ended March 31,				Nine Months Ended March 31,
	2022		2021		2022		2021
	(in thousands)				(in thousands)
Power discrete	$	140,572	$	122,615	$	406,235	$	355,487
Power IC	60,359		43,385		167,782		115,224
Packaging and testing services	2,308		3,212		9,576		8,882
	$	203,239	$	169,212	$	583,593	$	479,593

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas

Long-lived assets, net consisting of property, plant and equipment and land use rights, net, as well as operating lease right-of-use assets, net by geographical area are as follows:

	March 31, 2022		June 30, 2021
	(in thousands)
China	$	96,679	$	350,387
United States	170,213		118,756
Other countries	3,849		2,494
	$	270,741	$	471,637

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The Company and Significant Accounting Policies - Joint Venture (Details) $ in Thousands, ¥ in Millions										1 Months Ended		9 Months Ended
	Mar. 31, 2022	Jan. 26, 2022 USD ($)	Jan. 26, 2022 CNY (¥)	Dec. 31, 2021	Dec. 24, 2021 USD ($)	Dec. 24, 2021 CNY (¥)	Dec. 02, 2021 director	Dec. 01, 2021	Nov. 30, 2021 director	Dec. 31, 2021 USD ($)	Dec. 31, 2021 CNY (¥)	Mar. 31, 2022 USD ($)	Mar. 31, 2021 USD ($)
Ownership interest, percent		42.20%	42.20%
Proceeds from sale of equity interest in the JV Company | $												$ 26,347	$ 0
Number of appointments to board of directors | director							3		4
Number of directors on Board | director							7
Joint Venture
Ownership interest, percent	42.20%			45.80%			48.80%		50.90%
Proceeds from sale of equity interest in the JV Company | $										$ 16,924
Joint Venture | Third Party Investor
Ownership interest sold, percent		7.82%	7.82%		1.10%	1.10%		2.10%
Proceeds from sale of equity interest in the JV Company		$ 80,000	¥ 509.0		$ 9,400	¥ 60.0				$ 16,900	¥ 108.0
Joint Venture | Employee Incentive Plan | Employee Incentive Plan
Ownership interest sold, percent					3.99%	3.99%
Parent Company | Facility in Liangjiang New Area of Chongqing (the 'Joint Venture')
Ownership interest, percent								50.90%
Chongqing Funds | Facility in Liangjiang New Area of Chongqing (the 'Joint Venture')
Ownership interest, percent				45.80%				49.10%

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The Company and Significant Accounting Policies - Restricted Cash (Details) - USD ($) $ in Millions	Mar. 31, 2022	Jun. 30, 2021
Accounting Policies [Abstract]
Restricted cash	$ 0.2	$ 2.4

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The Company and Significant Accounting Policies - Government Grants (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Government Grants, Reduction Recorded To Interest Expense	$ 0.0	$ 0.7	$ 0.9	$ 2.2
Government Grants, Reduction Recorded To Property, Plant And Equipment	0.0	0.0	1.2	0.1
Government Grants, Reduction Recorded To Operating Expenses	$ 0.0	$ 0.1	$ 0.2	$ 3.7

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Equity Method Investment in Equity Investee - Narrative (Details) $ in Thousands, ¥ in Millions										1 Months Ended		3 Months Ended		9 Months Ended
	Mar. 31, 2022	Jan. 26, 2022 USD ($)	Jan. 26, 2022 CNY (¥)	Dec. 31, 2021	Dec. 24, 2021 USD ($)	Dec. 24, 2021 CNY (¥)	Dec. 02, 2021 director	Dec. 01, 2021	Nov. 30, 2021 director	Dec. 31, 2021 USD ($)	Dec. 31, 2021 CNY (¥)	Mar. 31, 2022 USD ($)	Mar. 31, 2021 USD ($)	Mar. 31, 2022 USD ($)	Mar. 31, 2021 USD ($)
Schedule of Equity Method Investments [Line Items]
Ownership interest, percent		42.20%	42.20%
Number of appointments to board of directors | director							3		4
Number of directors on Board | director							7
Gain on deconsolidation of the JV Company												$ 0	$ 0	$ 399,093	$ 0
Proceeds from sale of equity interest in the JV Company														26,347	0
Loss on changes on equity interest of the JV Company, net														(3,140)	0
Loss on equity investment												1,136	0	1,136	0
Gain (loss) on changes of equity interest in the JV Company, net												$ 4,501	$ 0	(3,140)	$ 0
Facility in Liangjiang New Area of Chongqing (the 'Joint Venture') | Chongqing Funds
Schedule of Equity Method Investments [Line Items]
Ownership interest, percent				45.80%				49.10%
Joint Venture
Schedule of Equity Method Investments [Line Items]
Ownership interest, percent	42.20%			45.80%			48.80%		50.90%
Gain on deconsolidation of the JV Company										$ 399,093
Proceeds from sale of equity interest in the JV Company										16,924
Loss on changes on equity interest of the JV Company, net														$ (3,140)
Third Party Investor | Joint Venture
Schedule of Equity Method Investments [Line Items]
Gain on deconsolidation of the JV Company		$ 4,501			$ 475
Ownership interest sold, percent		7.82%	7.82%		1.10%	1.10%		2.10%
Proceeds from sale of equity interest in the JV Company		$ 80,000	¥ 509.0		$ 9,400	¥ 60.0				$ 16,900	¥ 108.0
Employee Incentive Plan | Joint Venture | Employee Incentive Plan
Schedule of Equity Method Investments [Line Items]
Ownership interest sold, percent					3.99%	3.99%

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Equity Method Investment in Equity Investee - Schedule of Gain on Deconsolidation (Details) $ in Thousands, ¥ in Millions					1 Months Ended		3 Months Ended		9 Months Ended
	Jan. 26, 2022 USD ($)	Jan. 26, 2022 CNY (¥)	Dec. 24, 2021 USD ($)	Dec. 24, 2021 CNY (¥)	Dec. 31, 2021 USD ($)	Dec. 31, 2021 CNY (¥)	Mar. 31, 2022 USD ($)	Mar. 31, 2021 USD ($)	Mar. 31, 2022 USD ($)	Mar. 31, 2021 USD ($)	Dec. 01, 2021 USD ($)
Schedule of Equity Method Investments [Line Items]
Cash received for sales of shares in the JV Company									$ 26,347	$ 0
Gain on deconsolidation of the JV Company							$ 0	$ 0	399,093	0
Share-based Payment Arrangement, Expense							(8,273)	(3,825)	(21,454)	(9,925)
Loss on changes on equity interest of the JV Company, net									(3,140)	0
Gain (loss) on changes of equity interest in the JV Company, net							$ 4,501	$ 0	(3,140)	$ 0
Joint Venture
Schedule of Equity Method Investments [Line Items]
Cash received for sales of shares in the JV Company					$ 16,924
Fair value of retained equity method investment					393,124
Carrying amount of non-controlling interest					143,889
Cumulative translation adjustment removal					1,793
Carrying amount of net assets of the JV Company at December 1, 2021											$ (156,637)
Gain on deconsolidation of the JV Company					399,093
Share-based Payment Arrangement, Expense									(8,116)
Loss on changes on equity interest of the JV Company, net									$ (3,140)
Joint Venture | Third Party Investor
Schedule of Equity Method Investments [Line Items]
Cash received for sales of shares in the JV Company	$ 80,000	¥ 509.0	$ 9,400	¥ 60.0	$ 16,900	¥ 108.0
Gain on deconsolidation of the JV Company	$ 4,501		$ 475

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Related Party Transactions (Details) - USD ($) $ in Millions						3 Months Ended	9 Months Ended
	Mar. 31, 2022	Jan. 26, 2022	Dec. 31, 2021	Dec. 02, 2021	Nov. 30, 2021	Mar. 31, 2022	Mar. 31, 2022
Related Party Transaction [Line Items]
Ownership interest, percent		42.20%
Joint Venture
Related Party Transaction [Line Items]
Ownership interest, percent	42.20%		45.80%	48.80%	50.90%
Purchases from related party						$ 45.8	$ 61.4
Sales from related party						$ 14.2	$ 18.4

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Net Income Per Common Share Attributable to Alpha and Omega Semiconductor Limited - Basic and Diluted Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Numerator:
Net income attributable to Alpha and Omega Semiconductor Limited	$ 31,650	$ 16,100	$ 438,072	$ 38,577
Basic:
Weighted average number of common shares used to compute basic net income per share	26,829	25,882	26,596	25,631
Effect of potentially dilutive securities:
Stock options, RSUs and ESPP shares	1,594	1,834	1,520	1,497
Weighted average number of common shares used to compute diluted net income per share	28,423	27,716	28,116	27,128
Net income per share attributable to Alpha and Omega Semiconductor Limited:
Basic (in dollars per share)	$ 1.18	$ 0.62	$ 16.47	$ 1.51
Diluted (in dollars per share)	$ 1.11	$ 0.58	$ 15.58	$ 1.42

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Net Income Per Common Share Attributable to Alpha and Omega Semiconductor Limited - Potential Dilutive Shares (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential dilutive securities (in shares)	21	107	198	169
Employee stock options and RSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential dilutive securities (in shares)	2	107	171	80
ESPP
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential dilutive securities (in shares)	19	0	27	89

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Concentration of Credit Risk and Significant Customers - (Details)			3 Months Ended		9 Months Ended
	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Minimum
Concentration Risk
Terms of credit sales, (in days)					30 days
Maximum
Concentration Risk
Terms of credit sales, (in days)					60 days
Customer A | Revenue | Customer Concentration Risk
Concentration Risk
Customers greater than 10% of total			24.20%	30.20%	24.80%	29.10%
Customer A | Accounts Receivable | Customer Concentration Risk
Concentration Risk
Customers greater than 10% of total	21.20%	12.40%
Customer B | Revenue | Customer Concentration Risk
Concentration Risk
Customers greater than 10% of total			38.80%	35.20%	38.70%	34.90%
Customer B | Accounts Receivable | Customer Concentration Risk
Concentration Risk
Customers greater than 10% of total	20.40%	22.10%
Customer C | Accounts Receivable | Customer Concentration Risk
Concentration Risk
Customers greater than 10% of total	13.70%	21.90%
Customer D | Accounts Receivable | Customer Concentration Risk
Concentration Risk
Customers greater than 10% of total	12.80%
Customer E | Accounts Receivable | Customer Concentration Risk
Concentration Risk
Customers greater than 10% of total	15.00%

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Balance Sheet Components - Accounts receivable (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Jun. 30, 2021
Balance Sheet Related Disclosures [Abstract]
Accounts receivable	$ 52,362	$ 48,234
Less: Allowance for price adjustments	(13,125)	(12,415)
Less: Allowance for doubtful accounts	(30)	(30)
Accounts receivable, net	$ 39,207	$ 35,789

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Balance Sheet Components - Inventories (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Jun. 30, 2021
Balance Sheet Related Disclosures [Abstract]
Raw materials	$ 54,435	$ 68,900
Work in-process	67,132	68,824
Finished goods	21,971	16,569
Inventory, net	$ 143,538	$ 154,293

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Balance Sheet Components - Other current assets (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Jun. 30, 2021
Balance Sheet Related Disclosures [Abstract]
VAT receivable	$ 550	$ 1,539
Other prepaid expenses	4,098	1,465
Prepaid insurance	1,291	2,615
Prepaid maintenance	774	1,670
Prepayment to supplier	1,295	2,540
Prepaid income tax	3,052	2,221
Interest Receivable, Current	0	2,207
Customs deposit	0	270
Other receivables	638	68
Other Assets, Current	$ 11,698	$ 14,595

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Balance Sheet Components - Property, plant, and equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Jun. 30, 2021
Property, Plant and Equipment [Line Items]
Property, plant, and equipment excluding equipment and construction In progress, gross	$ 386,195	$ 748,052
Land use rights	0	9,319
Less: accumulated depreciation	(228,437)	(348,749)
Property, plant and equipment excluding equipment and construction in progress, net	157,758	399,303
Equipment and construction in progress	88,012	37,674
Property, plant and equipment, net	245,770	436,977
Land
Property, Plant and Equipment [Line Items]
Property, plant, and equipment excluding equipment and construction In progress, gross	4,877	4,877
Building
Property, Plant and Equipment [Line Items]
Property, plant, and equipment excluding equipment and construction In progress, gross	15,867	71,454
Manufacturing machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant, and equipment excluding equipment and construction In progress, gross	266,135	515,320
Equipment and tooling
Property, Plant and Equipment [Line Items]
Property, plant, and equipment excluding equipment and construction In progress, gross	26,113	27,017
Computer equipment and software
Property, Plant and Equipment [Line Items]
Property, plant, and equipment excluding equipment and construction In progress, gross	35,199	41,518
Office furniture and equipment
Property, Plant and Equipment [Line Items]
Property, plant, and equipment excluding equipment and construction In progress, gross	2,778	3,814
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant, and equipment excluding equipment and construction In progress, gross	$ 35,226	$ 74,733

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Balance Sheet Components - Intangible assets (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Jun. 30, 2021
Schedule of Finite-lived Intangible Assets and Goodwill [Line Items]
Finite-Lived Intangible Assets, Gross	$ 19,455	$ 19,455
Less: accumulated amortization	(8,834)	(6,314)
Finite-Lived Intangible Assets, Net	10,621	13,141
Goodwill	269	269
Intangible assets, net	10,890	13,410
Patents and technology rights
Schedule of Finite-lived Intangible Assets and Goodwill [Line Items]
Finite-Lived Intangible Assets, Gross	18,037	18,037
Trade name
Schedule of Finite-lived Intangible Assets and Goodwill [Line Items]
Finite-Lived Intangible Assets, Gross	268	268
Customer relationships
Schedule of Finite-lived Intangible Assets and Goodwill [Line Items]
Finite-Lived Intangible Assets, Gross	$ 1,150	$ 1,150

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Balance Sheet Components - Future Amortization of Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Jun. 30, 2021
Balance Sheet Related Disclosures [Abstract]
2022 (Remaining)	$ 840
2023	3,286
2024	3,249
2025	3,246
Finite-Lived Intangible Assets, Net	$ 10,621	$ 13,141

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Balance Sheet Components - Other long term assets (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Jun. 30, 2021
Balance Sheet Related Disclosures [Abstract]
Prepayments for property and equipment	$ 18,500	$ 14,882
Investment in a privately held company	100	100
Customs deposit	1,824	1,120
Deposit with supplier	6,396	0
Other long-term deposits	20	927
Office leases deposits	964	1,100
Other	1,661	740
Other long-term assets	$ 29,465	$ 18,869

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Balance Sheet Components - Accrued liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020
Balance Sheet Related Disclosures [Abstract]
Accrued compensation and benefits	$ 25,550	$ 32,756
Warranty accrual	2,483	2,795	$ 836	$ 709
Stock rotation accrual	4,207	3,917	$ 4,085	$ 3,358
Accrued professional fees	3,009	3,017
Accrued inventory	1,150	1,138
Accrued facilities related expenses	2,689	2,536
Accrued property, plant and equipment	8,664	8,688
Other accrued expenses	5,864	6,793
Customer deposit	35,111	7,139
ESPP payable	2,606	715
Accrued liabilities	$ 91,333	$ 69,494

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Balance Sheet Components - Product Warranty Accrual (Details) - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) [Roll Forward]
Beginning balance	$ 2,795	$ 709
Additions	949	338
Utilization	(1,261)	(211)
Ending balance	$ 2,483	$ 836

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Balance Sheet Components - Stock Rotation Accrual (Details) - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Stock Rotation Accrual Increae (Decrease) [Roll Forward]
Beginning balance	$ 3,917	$ 3,358
Additions	3,030	4,498
Utilization	(2,740)	(3,771)
Ending balance	$ 4,207	$ 4,085

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Balance Sheet Components - Other Long-Term Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Jun. 30, 2021
Concentration Risk
Deferred payroll taxes	$ 0	$ 1,219
Customer deposits	72,384	42,000
Other	0	904
Other long-term liabilities	72,384	44,123
Customer A and Customer B
Concentration Risk
Customer deposits	62,400	$ 42,000
Other customers
Concentration Risk
Customer deposits	$ 10,000

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Bank Borrowing - Narrative (Details) ¥ in Millions						1 Months Ended			3 Months Ended
	Feb. 16, 2022 USD ($)	Aug. 18, 2021 USD ($)	Aug. 09, 2019 USD ($)	May 01, 2018 USD ($)	Aug. 15, 2017 USD ($)	Oct. 31, 2019 USD ($)	Jul. 31, 2018 USD ($)	Jan. 31, 2018 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2021 CNY (¥)	Mar. 31, 2022 USD ($)	Mar. 31, 2022 CNY (¥)	Aug. 11, 2021 USD ($)	Jun. 30, 2021 USD ($)	Oct. 31, 2019 CNY (¥)	Nov. 16, 2018 USD ($)	Nov. 16, 2018 CNY (¥)
Debt Instrument [Line Items]
Restricted cash											$ 200,000			$ 2,400,000
Secured Debt | Accounts Receivable Factoring Agreement August 9 2019
Debt Instrument [Line Items]
Accounts Receivable Factoring Agreement, Reduction Of Maximum Borrowing Capacity													$ 8,000,000
Secured Debt | Jireh
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity		$ 45,000,000
Debt instrument, term		5 years 6 months
Amount outstanding											45,000,000
Proceeds from lines of credit	$ 45,000,000
Bank Of Communications Limited
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity						$ 8,500,000						¥ 140.0			¥ 60.0
Bank Of Communications Limited | Credit Facility, 3.85%, Due November 18, 2022
Debt Instrument [Line Items]
Proceeds from short-term debt									$ 1,700,000	¥ 11.0
Loan agreements, short-term debt											1,700,000
Stated percentage									3.85%	3.85%
Hongkong And Shanghai Banking Corporation Limited | Secured Debt | Accounts Receivable Factoring Agreement August 9 2019
Debt Instrument [Line Items]
Basis spread on variable rate			1.75%
Accounts receivable factoring agreement, maximum borrowing capacity, percent of net accounts receivable			70.00%
Accounts receivable factoring agreement, maximum borrowing capacity			$ 30,000,000
Accounts receivable factoring agreement, remaining borrowing capacity											8,000,000
Accounts receivable factoring agreement, borrowed amount outstanding											0
The Bank | Secured Debt
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity				$ 17,800,000
Debt instrument, term				5 years
Amount outstanding											14,400,000
Stated percentage				5.04%
The Bank | Term Loan | Secured Debt | Variable Interest Rate Term Loan Maturing August 2022
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity					$ 30,000,000
Debt instrument, term					5 years
Amount outstanding											3,700,000
Proceeds from lines of credit							$ 16,700,000	$ 13,200,000
The Bank | Minimum | London Interbank Offered Rate (LIBOR) | Term Loan | Secured Debt | Variable Interest Rate Term Loan Maturing August 2022
Debt Instrument [Line Items]
Basis spread on variable rate					1.75%
The Bank | Maximum | London Interbank Offered Rate (LIBOR) | Term Loan | Secured Debt | Variable Interest Rate Term Loan Maturing August 2022
Debt Instrument [Line Items]
Basis spread on variable rate					2.25%
China | Bank Of Communications Limited | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate						4.99%
Basis spread on variable rate, multiple						1.05									1.05
Foreign Line of Credit | Industrial And Commercial Bank of China
Debt Instrument [Line Items]
Proceeds from short-term debt									$ 800,000	¥ 5.0
Short-term debt, fixed interest rate									370.00%	370.00%
Loan agreements, short-term debt											$ 600,000					$ 10,300,000	¥ 72.0
Foreign Line of Credit | Industrial And Commercial Bank of China | Line of Credit Facility, Trade Borrowings
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity | ¥																	27.0
Foreign Line of Credit | Industrial And Commercial Bank of China | Line of Credit Facility, Working Capital Borrowings
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity | ¥																	¥ 45.0

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Bank Borrowing - Schedule of Debt Maturities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Jun. 30, 2021
Debt Disclosure [Abstract]
2022 (Remaining)	$ 2,085
2023	25,067
2024	9,000
2025	9,000
2026	9,000
Thereafter	11,250
Total principal, less debt issuance costs	65,402
Less: debt issuance costs	(183)
Debt, Long-Term And Short-Term, Combined Amount, Net	65,219
Short-term Debt [Abstract]
Principal amount	11,403
Less: debt issuance costs	(71)
Total debt, less debt issuance costs	11,332
Long-term Debt, Unclassified [Abstract]
Principal amount	53,999
Less: debt issuance costs	(112)
Total debt, less debt issuance costs	$ 53,887	$ 77,990

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Leases - Narrative (Details) $ in Thousands, ¥ in Millions	Mar. 31, 2022 USD ($)	Jun. 30, 2021 USD ($)	May 09, 2018 CNY (¥)
Debt Instrument [Line Items]
Operating lease liability	$ 26,423
ROU assets associated with operating leases	24,971	$ 34,660
Lease Financing | Manufacturing machinery and equipment
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 4,800
Lease Financing | YinHai Leasing Company and China Import/Export Bank | YinHai Leasing Company and China Import/Export Bank
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity | ¥			¥ 400.0

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Leases - Schedule of Operating and Finance Lease Expenses (Details) - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating leases:
Fixed rent expense	$ 4,955	$ 5,089
Variable rent expense	741	599
Finance lease:
Amortization of equipment	787	1,682
Interest	692	1,699
Short-term leases
Short-term lease expenses	144	164
Total lease expenses	$ 7,319	$ 9,233

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Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Jun. 30, 2021
Operating Leases:
ROU assets associated with operating leases	$ 24,971	$ 34,660
Finance Lease:
Property, plant and equipment, gross	4,831	114,404
Accumulated depreciation	(15)	(96,470)
Property, plant and equipment, net	$ 4,816	$ 17,934
Weighted average remaining lease term (in years)
Operating leases	7 years 5 months 23 days	8 years 5 months 8 days
Finance lease	4 years 11 months 15 days	1 year 8 months 19 days
Weighted average discount rate
Operating leases	4.24%	4.67%
Finance lease	4.50%	5.46%

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Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash paid from amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 4,965	$ 4,721
Operating cash flows from finance lease	421	1,699
Financing cash flows from finance lease	4,176	12,267
Operating lease right-of-use assets obtained in exchange for lease obligations	$ 5,901	$ 2,843

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Leases - Future Minimum Lease Payments (Topic 842) (Details) $ in Thousands	Mar. 31, 2022 USD ($)
Operating Leases
The remainder of fiscal 2022	$ 1,550
2023	5,382
2024	4,123
2025	3,254
2026	3,207
Thereafter	13,658
Total minimum lease payments	31,174
Less amount representing interest	(4,751)
Total lease liabilities	26,423
Finance Leases
The remainder of fiscal 2022	163
2023	1,074
2024	1,083
2025	1,083
2026	1,083
Thereafter	754
Total minimum lease payments	5,240
Less amount representing interest	(544)
Finance Lease, Liability	$ 4,696

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Shareholders' Equity and Share-based Compensation - Shares Repurchase (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended		137 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Sep. 30, 2017
Class of Stock [Line Items]
Treasury Stock, Shares, Retired					0
Share repurchase program, authorized amount (USD in Millions)						$ 30,000
Repurchase of common shares under shares repurchase program			0		6,784,648
Treasury stock acquired, average price per share (in dollars per share)					$ 9.92
Treasury Stock, Value, Acquired, Cost Method					$ (67,300)
Shares repurchase program, remaining balance	$ 13,400		$ 13,400		$ 13,400
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	0	0	0	0
Share-based compensation expense	$ 8,273	$ 3,825	$ 21,454	$ 9,925
Treasury Stock Reissued
Class of Stock [Line Items]
Treasury stock acquired, average price per share (in dollars per share)					$ 10.07
Shares reissued (in shares)					166,645
Shares reissued, average price (in dollars per share)					$ 5.02
2018 Market-based Restricted Stock Units (MSU)
Class of Stock [Line Items]
Share-based compensation expense	$ 400	$ 300	$ 1,200	$ 900

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Shareholders' Equity and Share-based Compensation - Time-based Restricted Stock Activity (Details) - USD ($)			9 Months Ended
	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted average remaining recognition period (in years)	3 years 6 months
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Nonvested at beginning of period (in shares)			1,053,524
Granted (in shares)			563,681
Vested (in shares)			(380,029)
Forfeited (in shares)			(46,251)
Nonvested at end of period (in shares)	1,190,925	1,053,524	1,190,925
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Nonvested at beginning of period (in dollars per share)			$ 21.60
Granted (in dollars per share)			46.10
Vested (in dollars per share)			20.01
Forfeited (in dollars per share)			23.14
Nonvested at end of period (in dollars per share	$ 33.64	$ 21.60	$ 33.64
Weighted average remaining recognition period (in years)		1 year 8 months 23 days	1 year 11 months 1 day
Aggregate Intrinsic Value	$ 65,084,051	$ 32,016,594	$ 65,084,051

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Shareholders' Equity and Share-based Compensation - Market-based Restricted Stock Units Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended			9 Months Ended
	Dec. 31, 2021	Mar. 31, 2022	Mar. 31, 2021	Sep. 30, 2018	Mar. 31, 2022	Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense		$ 8,273	$ 3,825		$ 21,454	$ 9,925
2021 Market-based Restricted Stock Units (MSU)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	1.00%
Expected term	3 years 1 month 6 days
Dividend yield	0.00%
Share-based compensation expense		2,000			2,500
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Granted (in shares)	1,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	62.80%
2021 Market-based Restricted Stock Units (MSU) | Minimum
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period	4 years 1 month 6 days
2021 Market-based Restricted Stock Units (MSU) | Maximum
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period	7 years 1 month 6 days
2018 Market-based Restricted Stock Units (MSU)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense		$ 400	$ 300		$ 1,200	$ 900
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Granted (in shares)				1,300,000

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Shareholders' Equity and Share-based Compensation - Performance-based Restricted Stock Units (Details) - USD ($)			3 Months Ended		9 Months Ended
	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense			$ 8,273,000	$ 3,825,000	$ 21,454,000	$ 9,925,000
Deferred compensation share-based arrangements, liability, current	$ 0	$ 100,000	0		0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted average remaining recognition period (in years)	3 years 6 months
Performance Based Restricted Stock Units (PRSUs) Member
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense			1,000,000	500,000	3,000,000	1,300,000
Share-based payment arrangement, expense, non-cash			$ 0	$ 800,000	300,000	$ 2,200,000
Value of grants in period					$ 4,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Nonvested at beginning of period (in shares)					353,824
Granted (in shares)					194,000
Vested (in shares)					(151,199)
Forfeited (in shares)					(1,000)
Nonvested at end of period (in shares)	395,625	353,824	395,625		395,625
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Nonvested at beginning of period (in dollars per share)					$ 22.69
Granted (in dollars per share)					48.65
Vested (in dollars per share)					19.44
Forfeited (in dollars per share)					16.22
Nonvested at end of period (in dollars per share	$ 36.68	$ 22.69	$ 36.68		$ 36.68
Weighted average remaining recognition period (in years)	2 years 1 month 9 days	1 year 8 months 26 days
Aggregate Intrinsic Value	$ 21,620,906	$ 10,752,711	$ 21,620,906		$ 21,620,906

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Shareholders' Equity and Share-based Compensation - Stock Options Outstanding and Exercisable (Details) - USD ($)			9 Months Ended
	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at beginning of period (in shares)			487,875
Exercised (in shares)			(93,000)
Outstanding at end of period (In shares)	394,875	487,875	394,875
Options vested and expected to vest (in shares)	394,875		394,875
Exercisable at end of period (in shares)	394,875		394,875
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Outstanding at beginning of period (in dollars per share)			$ 7.99
Exercised (in dollars per share)			9.24
Outstanding at end of period (in dollars per share)	$ 7.70	$ 7.99	7.70
Options vested and expected to vest (in dollars per share)	7.70		7.70
Exercisable at end of period (in dollars per share)	$ 7.70		$ 7.70
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Options outstanding, Weighted-Average Remaining Contractual Life (in years)	1 year 9 months 10 days	2 years 3 months 25 days
Options vested and expected to vest, Weighted Average Remaining Contractual Life (in years)	1 year 9 months 10 days
Exercisable at end of period, Weighted Average Remaining Contractual Life (in years)	1 year 9 months 10 days
Options outstanding, Aggregate Intrinsic Value	$ 18,541,050	$ 10,928,653	$ 18,541,050
Options vested and expected to vest, Aggregate Intrinsic Value	18,541,050		18,541,050
Exercisable at end of period, Aggregate Intrinsic Value	$ 18,541,050		$ 18,541,050

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Shareholders' Equity and Share-based Compensation - Employee Share Purchase Plan (Details) - shares	9 Months Ended	137 Months Ended
	Mar. 31, 2022	Mar. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Repurchase of common shares under shares repurchase program	0	6,784,648
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility rate	66.40%
Risk-free interest rate	0.30%
Expected term	1 year 3 months 18 days
Dividend yield	0.00%

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Shareholders' Equity and Share-based Compensation - Share-based Compensation (Details) - USD ($)			3 Months Ended			9 Months Ended		137 Months Ended
	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2022	Mar. 31, 2021	Sep. 30, 2018	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense			$ 8,273,000	$ 3,825,000		$ 21,454,000	$ 9,925,000
Repurchase of common shares under shares repurchase program						0		6,784,648
Options outstanding, Weighted-Average Remaining Contractual Life (in years)	1 year 9 months 10 days	2 years 3 months 25 days
Options vested and expected to vest (in shares)	394,875		394,875			394,875		394,875
Options vested and expected to vest (in dollars per share)	$ 7.70		$ 7.70			$ 7.70		$ 7.70
Options vested and expected to vest, Weighted Average Remaining Contractual Life (in years)	1 year 9 months 10 days
Options vested and expected to vest, Aggregate Intrinsic Value	$ 18,541,050		$ 18,541,050			$ 18,541,050		$ 18,541,050
Exercisable at end of period (in shares)	394,875		394,875			394,875		394,875
Exercisable at end of period (in dollars per share)	$ 7.70		$ 7.70			$ 7.70		$ 7.70
Exercisable at end of period, Weighted Average Remaining Contractual Life (in years)	1 year 9 months 10 days
Exercisable at end of period, Aggregate Intrinsic Value	$ 18,541,050		$ 18,541,050			$ 18,541,050		$ 18,541,050
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at beginning of period (in shares)						487,875
Outstanding at end of period (In shares)	394,875	487,875	394,875			394,875		394,875
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Outstanding at beginning of period (in dollars per share)						$ 7.99
Outstanding at end of period (in dollars per share)	$ 7.70	$ 7.99	$ 7.70			$ 7.70		$ 7.70
Options outstanding, Aggregate Intrinsic Value	$ 18,541,050	$ 10,928,653	$ 18,541,050			$ 18,541,050		$ 18,541,050
2018 Market-based Restricted Stock Units (MSU)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense			400,000	300,000		1,200,000	900,000
Granted (in shares)					1,300,000
Performance Based Restricted Stock Units (PRSUs) Member
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense			$ 1,000,000	$ 500,000		$ 3,000,000	$ 1,300,000
Granted (in shares)						194,000

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Shareholders' Equity and Share-based Compensation - Share-based Compensation Expenses (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Mar. 31, 2022	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense		$ 8,273	$ 3,825	$ 21,454	$ 9,925
Unrecognized compensation expense	$ 86,200	86,200		86,200
Recognition period of share-based compensation expense (in years)	3 years 6 months
Cost of goods sold
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense		1,282	427	3,560	1,195
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense		1,814	1,316	4,769	3,639
Selling, general and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense		$ 5,177	$ 2,082	$ 13,125	$ 5,091

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Income Taxes - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Dec. 31, 2021	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Income Tax Disclosure [Abstract]
Income tax expense		$ 2,902	$ 1,014	$ 38,318	$ 2,694
Discrete income tax expense		700		33,500	40
Income from sale of equity interest in a joint venture	$ 396,000	4,500		396,000
Gain on deconsolidation of the JV Company		$ 0	$ 0	$ 399,093	$ 0
Estimated effective income tax rate excluding discrete income tax expense		7.40%	6.30%	6.00%	7.00%
Income (loss) before taxes, excluding income and gain from sale of equity interests in joint venture		$ 34,500		$ 476,400
Income (loss) before taxes, excluding income from sale of equity interest in joint venture.		30,000		80,400
Income (loss) before income taxes		35,688	$ 15,981	477,546	$ 38,968
Other discrete income tax items				100
Unrecognized tax benefits		7,800		7,800
Unrecognized tax benefit that would impact effective tax rate		$ 4,800		$ 4,800

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Segment and Geographic Information - Narratives (Details)	9 Months Ended
	Mar. 31, 2022 Segment
Segment Reporting [Abstract]
Number of operating segments	1
Number of reportable segments	1

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Segment and Geographic Information - Revenue by Location and Product Type (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ (203,239)	$ (169,212)	$ (583,593)	$ (479,593)
Power discrete
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	(140,572)	(122,615)	(406,235)	(355,487)
Power IC
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	(60,359)	(43,385)	(167,782)	(115,224)
Packaging and testing services
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	(2,308)	(3,212)	(9,576)	(8,882)
Hong Kong
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	(164,555)	(139,167)	(472,399)	(396,879)
Hong Kong | Revision of Prior Period, Adjustment
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue		500		3,900
China
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	(31,883)	(28,110)	(91,958)	(74,250)
China | Revision of Prior Period, Adjustment
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue		(100)		(200)
South Korea
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	(2,745)	(473)	(8,862)	(4,069)
South Korea | Revision of Prior Period, Adjustment
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue		(400)		(3,700)
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	(3,534)	(1,088)	(9,004)	(3,683)
Other countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ (522)	$ (374)	$ (1,370)	$ (712)

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Segment and Geographic Information - Long-lived Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Jun. 30, 2021
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net and land use rights, net	$ 270,741	$ 471,637
China
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net and land use rights, net	96,679	350,387
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net and land use rights, net	170,213	118,756
Other countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net and land use rights, net	$ 3,849	$ 2,494

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Commitments and Contingencies - Purchase Commitments (Details) - USD ($) $ in Millions	Mar. 31, 2022	Jun. 30, 2021
Raw materials, wafers, and packaging and testing services puchase commitments
Purchase Commitment, Excluding Long-term Committment [Line Items]
Purchase commitment, amount	$ 106.6	$ 81.8
Property and equipment purchase commitments
Purchase Commitment, Excluding Long-term Committment [Line Items]
Purchase commitment, amount	$ 102.7	$ 90.0

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Commitments and Contingencies - Contingencies and Indemnities (Details) - USD ($)	Mar. 31, 2022	Jun. 30, 2021
Indemnification Agreement
Loss Contingencies [Line Items]
Indemnifications accrual	$ 0	$ 0

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Cybersecutiy Incident (Details) $ in Millions	3 Months Ended
	Mar. 31, 2022 USD ($)
Loss from Cyber Security Incident
Loss Contingencies [Line Items]
Loss recorded in the period from cyber security incident	$ 1.5