10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)
ý	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended December 29, 2013
or
o	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 1-7935

International Rectifier Corporation

(Exact Name of Registrant as Specified in Its Charter)

Delaware (State or Other Jurisdiction of  Incorporation or Organization)	95-1528961 (I.R.S. Employer  Identification No.)
101 N. Sepulveda Blvd El Segundo, California  (Address of Principal Executive Offices)	90245  (Zip Code)

Registrant's Telephone Number, Including Area Code: (310) 726-8000

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 ý  No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted 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 ý   No o

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

Large accelerated filer x Accelerated filer o Non-accelerated filer o (Do not check if a smaller reporting company) Smaller reporting company o

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

There were 71,255,116 shares of the registrant's common stock, par value $1.00 per share, outstanding on January 22, 2014.

TABLE OF CONTENTS

Part I	Financial Information	4
Item 1.	Financial Statements	4
	Unaudited Condensed Consolidated Statements of Operations for the Three and Six Months Ended December 29, 2013 and December 23, 2012	4
	Unaudited Condensed Consolidated Statements of Comprehensive Income (Loss) for the Three and Six Months Ended December 29, 2013 and December 23, 2012	5
	Unaudited Condensed Consolidated Balance Sheets as of December 29, 2013 and June 30, 2013	6
	Unaudited Condensed Consolidated Statements of Cash Flows for the Six Months Ended December 29, 2013 and December 23, 2012	7
	Notes to Unaudited Condensed Consolidated Financial Statements	8
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	34
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	50
Item 4.	Controls and Procedures	51
Part II	Other Information	52
Item 1.	Legal Proceedings	52
Item 1A.	Risk Factors	52
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	52
Item 5.	Other Information	53
Item 6.	Exhibits	53

2

Note Regarding Forward-Looking Statements

This document contains "forward‑looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. These statements relate to expectations concerning matters that (a) are not historical facts, (b) predict or forecast future events or results, or (c) embody assumptions that may prove to have been inaccurate. These forward‑looking statements involve risks, uncertainties and assumptions. When we use words such as "believe," "expect," "anticipate," "will" or similar expressions, we are making forward‑looking statements. Although we believe that the expectations reflected in such forward‑looking statements are reasonable, we cannot give readers any assurance that such expectations will prove correct. The actual results may differ materially from those anticipated in the forward‑looking statements as a result of numerous factors, many of which are beyond our control. Important factors that could cause actual results to differ materially from our expectations include, but are not limited to, the factors discussed in the sections entitled "Risk Factors" and "Management's Discussion and Analysis of Financial Condition and Results of Operations." All forward‑looking statements attributable to us are expressly qualified in their entirety by the factors that may cause actual results to differ materially from anticipated results. Readers are cautioned not to place undue reliance on these forward‑looking statements, which reflect our opinion only as of the date hereof. We undertake no duty or obligation to revise these forward‑looking statements. Readers should carefully review the risk factors described in this document as well as in other documents we file from time to time with the Securities and Exchange Commission ("SEC").

3

PART I. FINANCIAL INFORMATION

ITEM 1. Financial Statements

INTERNATIONAL RECTIFIER CORPORATION AND SUBSIDIARIES

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(In thousands, except per share data)

	Three Months Ended						Six Months Ended
	December 29, 2013			December 23, 2012			December 29, 2013		December 23, 2012
Revenues	$	269,965		$	223,822		$	539,715	$	476,314
Cost of sales	172,000			174,733			346,439		356,684
Gross profit	97,965			49,089			193,276		119,630
Selling, general and administrative expense	44,727			45,083			88,477		92,378
Research and development expense	32,786			32,125			64,959		65,574
Amortization of acquisition‑related intangible assets	1,630			1,680			3,260		3,360
Asset impairment, restructuring and other charges	1,015			4,941			2,417		13,907
Operating income (loss)	17,807			(34,740		)	34,163		(55,589		)
Other expense, net	1,510			411			2,272		1,419
Interest expense (income), net	7			(8		)	6		(40		)
Income (loss) before income taxes	16,290			(35,143		)	31,885		(56,968		)
Provision for (benefit from) income taxes	(1,631		)	(2,421		)	5,241		4,529
Net income (loss)	$	17,921		$	(32,722	)	$	26,644	$	(61,497	)
Net income (loss) per common share:
Basic	$	0.25		$	(0.47	)	$	0.38	$	(0.89	)
Diluted	$	0.25		$	(0.47	)	$	0.37	$	(0.89	)
Weighted average common shares outstanding:
Basic	71,147			69,144			70,988		69,213
Diluted	72,163			69,144			71,885		69,213

The accompanying notes are an integral part of these financial statements.

4

INTERNATIONAL RECTIFIER CORPORATION AND SUBSIDIARIES

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

(In thousands)

	Three Months Ended					Six Months Ended
	December 29, 2013		December 23, 2012			December 29, 2013		December 23, 2012
Net income (loss)	$	17,921	$	(32,722	)	$	26,644	$	(61,497	)
Other comprehensive income, net of tax:
Foreign currency translation adjustments, net of tax effect of $0 for all periods presented	5,187		(601		)	20,365		10,631
Unrealized gains (losses) on securities:
Unrealized holding gains (losses) on available-for-sale securities, net of tax effect of $0 for all periods presented	5,937		1,367			9,089		(1,837		)
Other comprehensive income	11,124		766			29,454		8,794
Comprehensive income (loss)	$	29,045	$	(31,956	)	$	56,098	$	(52,703	)

The accompanying notes are an integral part of these financial statements.

5

INTERNATIONAL RECTIFIER CORPORATION AND SUBSIDIARIES

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS

(In thousands)

	December 29, 2013			June 30, 2013 (1)
ASSETS
Current assets:
Cash and cash equivalents	$	498,487		$	443,490
Restricted cash	635			611
Short-term investments	5,001			11,056
Trade accounts receivable, net of allowances	156,730			137,762
Inventories	247,740			232,315
Current deferred tax assets	4,946			4,948
Prepaid expenses and other current assets	34,222			33,002
Total current assets	947,761			863,184
Restricted cash	739			738
Property, plant and equipment, net	412,277			423,338
Goodwill	52,149			52,149
Acquisition‑related intangible assets, net	18,663			21,923
Long-term deferred tax assets	29,108			32,792
Other assets	65,135			59,088
Total assets	$	1,525,832		$	1,453,212
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	86,403		$	89,312
Accrued income taxes	4,361			949
Accrued salaries, wages and commissions	37,764			39,719
Other accrued expenses	80,063			78,414
Total current liabilities	208,591			208,394
Long-term deferred tax liabilities	9,723			8,970
Other long-term liabilities	16,876			24,530
Total liabilities	235,190			241,894
Commitments and contingencies
Stockholders’ equity:
Common shares	77,426			76,590
Capital contributed in excess of par value	1,090,231			1,067,841
Treasury stock, at cost	(113,175		)	(113,175		)
Retained earnings	228,509			201,865
Accumulated other comprehensive income (loss)	7,651			(21,803		)
Total stockholders’ equity	1,290,642			1,211,318
Total liabilities and stockholders’ equity	$	1,525,832		$	1,453,212

(1) Amounts derived from the audited financial statements at June 30, 2013.

The accompanying notes are an integral part of these financial statements.

6

INTERNATIONAL RECTIFIER CORPORATION AND SUBSIDIARIES

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

	Six Months Ended
	December 29, 2013			December 23, 2012
Cash flows from operating activities:
Net income (loss)	$	26,644		$	(61,497	)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	43,543			45,775
Amortization of acquisition‑related intangible assets	3,260			3,360
Loss on disposal of fixed assets	70			4,099
Impairment of long-lived assets	—			2,376
Stock compensation expense	13,489			11,117
Gain on sale of investments	(36		)	(8		)
Provision for bad debts	—			2
Provision for inventory write‑downs	935			11,395
Loss on derivatives	987			2,117
Deferred income taxes	6,946			5,584
Changes in operating assets and liabilities, net	(38,072		)	25,608
Other	457			(1,464		)
Net cash provided by operating activities	58,223			48,464
Cash flows from investing activities:
Additions to property, plant and equipment	(22,632		)	(48,040		)
Proceeds from sale of property, plant and equipment	25			118
Sales of investments	36			52,131
Maturities of investments	6,000			21,500
Purchases of investments	—			(9,979		)
Release from (addition to) restricted cash	12			(13		)
Net cash provided by (used in) investing activities	(16,559		)	15,717
Cash flows from financing activities:
Proceeds from exercise of stock options	10,897			987
Purchase of treasury stock	—			(5,210		)
Net settlement of restricted stock units for tax withholdings	(1,160		)	(1,025		)
Net cash provided by (used in) financing activities	9,737			(5,248		)
Effect of exchange rate changes on cash and cash equivalents	3,596			2,300
Net increase in cash and cash equivalents	54,997			61,233
Cash and cash equivalents, beginning of period	443,490			305,423
Cash and cash equivalents, end of period	$	498,487		$	366,656

The accompanying notes are an integral part of these financial statements.

7

INTERNATIONAL RECTIFIER CORPORATION AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

1. Business, Basis of Presentation and Summary of Significant Accounting Policies

Business

International Rectifier Corporation ("IR" or the "Company") designs, manufactures and markets power management semiconductors.  Power management semiconductors address the core challenges of power management, power performance and power conservation, by increasing system efficiency, allowing more compact end-products, improving features on electronic devices and prolonging battery life.

Power semiconductors convert raw power from an electrical outlet, a battery, an alternator running off an internal combustion engine, a hybrid electric vehicle ("HEV") or electric vehicle ("EV"), or other renewable energy sources into more efficient and useful power for a wide range of electrical and electronic systems and equipment. The more sophisticated the end product, the greater the need for specially-formatted, finely-regulated power. The importance of power semiconductor technology rises with the increasing complexity of electronic products and the worldwide proliferation of electronic features in information technology, industrial, consumer, aerospace and defense and automotive products.

With the increasing demand for energy usage worldwide and generally rising energy costs, governments, businesses, and consumers alike are striving to conserve energy and demand more efficient uses of power in all types of electronic products including computers, appliances, military aircraft, and hybrid cars. The information technology, industrial, computing, consumer, high reliability and automobile industries use power management semiconductors to promote energy efficiency and improve product and device performance metrics.  Power management semiconductors enable energy savings by delivering the power tailored for a particular electrical device, rather than delivering a constant stream of power.

The Company's products include power metal oxide semiconductor field effect transistors ("MOSFETs"), high voltage analog and mixed signal integrated circuits ("HVICs"), low voltage analog and mixed signal integrated circuits ("LVICs"), digital integrated circuits ("ICs"), radiation‑resistant ("RAD-Hard") power MOSFETs, insulated gate bipolar transistors ("IGBTs"), high reliability DC-DC converters, digital controllers, integrated power modules, and automotive product packages.

Basis of Presentation

The condensed consolidated financial statements have been prepared in accordance with the instructions for Form 10-Q pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC"), and therefore do not include all information and notes normally provided in audited financial statements prepared in accordance with U.S. generally accepted accounting principles ("GAAP"). The condensed consolidated financial statements include the accounts of the Company and its subsidiaries, which are located in North America, Europe and Asia. Intercompany balances and transactions have been eliminated in consolidation.

In the opinion of management, all adjustments (consisting of normal recurring accruals and other adjustments) considered necessary for a fair presentation of the Company's results of operations, financial position, and cash flows have been included.  The results of operations for the interim periods presented are not necessarily comparable to the results of operations for any other interim period or indicative of the results that will be recorded for the full fiscal year ending June 29, 2014. These condensed consolidated financial statements and the accompanying notes should be read in conjunction with the Company's annual consolidated financial statements and the notes thereto included in the Company's Annual Report on Form 10-K for the fiscal year ended June 30, 2013 filed with the SEC on August 20, 2013 (the "2013 Annual Report").

Fiscal Year and Quarter

The Company operates on a 52-53 week fiscal year with the fiscal year ending on the last Sunday in June. The three months ended December 2013 and 2012 each consisted of 13 weeks ending on December 29, 2013 and December 23, 2012, respectively. The six months ended December 2013 and 2012 each consisted of 26 weeks ending on December 29, 2013 and December 23, 2012, respectively. The current fiscal year will consist of 52 weeks and end on June 29, 2014.

8

INTERNATIONAL RECTIFIER CORPORATION AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

1. Business, Basis of Presentation and Summary of Significant Accounting Policies (Continued)

Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported revenues and expenses during the reporting period. Actual results may differ from those estimates.

Fair Value Measurements

Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Assets and liabilities measured at fair value are categorized based on whether or not the inputs are observable in the market and the degree that the inputs are observable. The categorization of financial assets and liabilities within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The hierarchy is broken down into three levels, defined as follows:

• Level 1—Inputs are based on quoted market prices for identical assets or liabilities in active markets at the measurement date.

• Level 2—Inputs include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, and inputs (other than quoted prices) that are observable for the asset or liability, either directly or indirectly.

• Level 3—Inputs include management's best estimate of what market participants would use in pricing the asset or liability at the measurement date. The inputs are unobservable in the market and significant to the valuation.

The financial assets and liabilities which are measured and recorded at fair value on a recurring basis are included within the following items on the Company’s consolidated balance sheet as of December 29, 2013 and June 30, 2013 (in thousands):

	As of December 29, 2013
Assets and Liabilities:	Total			Level 1			Level 2			Level 3
Short-term investments	$	5,001		$	5,001		$	—		$	—
Other assets	38,656			36,726			—			1,930
Other accrued expenses	(10		)	—			(10		)	—
Other long-term liabilities	(9,370		)	(9,370		)	—			—
Total	$	34,277		$	32,357		$	(10	)	$	1,930

	As of June 30, 2013
Assets and Liabilities:	Total			Level 1			Level 2		Level 3
Short-term investments	$	11,056		$	6,004		$	5,052	$	—
Prepaid expenses and other current assets	19			—			19		—
Other assets	29,725			26,837			—		2,888
Other long-term liabilities	(8,326		)	(8,326		)	—		—
Total	$	32,474		$	24,515		$	5,071	$	2,888

The Company considers as cash and cash equivalents all investments that are highly liquid with an initial maturity of three months or less from the date of purchase.

The fair value of investments, derivatives, and other assets and liabilities are disclosed in Note 2, Note 3, and Note 9, respectively.

9

INTERNATIONAL RECTIFIER CORPORATION AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

1. Business, Basis of Presentation and Summary of Significant Accounting Policies (Continued)

The Company determines at the end of the reporting period whether a given financial asset or liability is valued using Level 1, 2, or 3 inputs. During each of the three and six months endedDecember 29, 2013 and December 23, 2012, there were no transfers between Level 1, Level 2, and Level 3 assets and liabilities.  The Company records its foreign currency forward contracts at fair value using Level 2 inputs based on readily observable market parameters for all substantial terms.

Level 3 Valuations

The following tables provide a reconciliation of the beginning and ending balance of items measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the three months ended December 29, 2013 and December 23, 2012 (in thousands):

	Level 3
	Assets
	Derivatives
Beginning balance at September 29, 2013	$	2,563
Total losses (realized or unrealized) included in other expense, net	(633		)
Ending balance at December 29, 2013	$	1,930

	Level 3
	Assets
	Derivatives
Beginning balance at September 23, 2012	$	2,920
Total gains (realized or unrealized) included in other expense, net	116
Ending balance at December 23, 2012	$	3,036

10

INTERNATIONAL RECTIFIER CORPORATION AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

1. Business, Basis of Presentation and Summary of Significant Accounting Policies (Continued)

The following tables provide a reconciliation of the beginning and ending balance of items measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the six months endedDecember 29, 2013 and December 23, 2012 (in thousands):

	Level 3
	Assets
	Derivatives
Beginning balance at June 30, 2013	$	2,888
Total losses (realized or unrealized) included in other expense, net	(958		)
Ending balance at December 29, 2013	$	1,930

	Level 3
	Assets
	Derivatives
Beginning balance at June 24, 2012	$	2,834
Total gains (realized or unrealized) included in other expense, net	202
Ending balance at December 23, 2012	$	3,036

When at least one significant valuation model assumption or input used to measure the fair value of financial assets or liabilities is unobservable in the market, they are deemed to be measured using Level 3 inputs. These Level 3 inputs may include pricing models, discounted cash flow methodologies or similar techniques where at least one significant model assumption or input is unobservable. The Company uses Level 3 inputs to value a non-transferable put option on a strategic investment (the “Put Option”).

The Company accounts for the Put Option as a derivative instrument not designated as an accounting hedge. The fair value was determined using the Black-Scholes option pricing model. The model uses inputs such as exercise price, fair market value of the underlying common stock, expected life (years), expected volatility, risk-free rate equivalent, and dividend yield. The expected life is the remaining life of the Put Option. Expected volatility is based on historical volatility of the underlying common stock. As of December 29, 2013, the Company determined that significant changes in the above assumptions would not materially affect the fair value of the Put Option. Additionally, the model relies on the material assumption that the issuer of the Put Option will uphold its financial obligation up to its common equity value should the Company exercise the Company’s right to put the associated number of common shares back to the issuer at a fixed price in local currency.

Non-Recurring Fair Value Measurements

During the three and six months endedDecember 29, 2013, the Company did not record any other-than-temporary impairments on financial assets required to be measured at fair value on a nonrecurring basis. For the three months ended December 23, 2012, the Company measured at fair value, on a non-recurring basis, the carrying values of certain of its equipment in its research and development group, as well as its Newport, Wales, and Mexico manufacturing facilities due to the non-use of that equipment. The Company determined that the carrying values of those assets of $8.7 million exceeded their estimated fair values of $4.0 million. The fair values were determined using the market approach, which considered the estimated fair value of the equipment using significant unobservable inputs (Level 3) obtained from third party equipment brokerage firms. Consequently, during the three and six months endedDecember 23, 2012, the Company recorded an impairment charge of $4.7 million, which represented the excess of the carrying values of the assets over the fair values, less the estimated cost to sell.

11

INTERNATIONAL RECTIFIER CORPORATION AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

1. Business, Basis of Presentation and Summary of Significant Accounting Policies (Continued)

Adoption of Recent Accounting Standards

In February 2013, the FASB issued ASC update No. 2013-02, “Comprehensive Income (Topic 220), Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income” (ASC 2013-02). This update requires companies to provide information about the amounts reclassified out of accumulated other comprehensive income by component. In addition, a company is required to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income but only if the amount reclassified is required under GAAP to be reclassified to net income in its entirety in the same reporting period. The amendments in this update are effective for fiscal years and interim periods within those years beginning after December 15, 2012. The adoption of this update did not have a material impact on the Company's financial statements, and additional disclosure pursuant to this update is presented in Note 10.

Recent Accounting Standards

In July 2013, the FASB issued ASC update No. 2013-11, "Income Taxes (Topic 740), Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists" (ASU 2013-11). Under the amendments in this update, an unrecognized tax benefit, or a portion of an unrecognized tax benefit, should be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward, except as follows. To the extent a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date under the tax law of the applicable jurisdiction to settle any additional income taxes that would result from the disallowance of a tax position or the tax law of the applicable jurisdiction does not require the entity to use, and the entity does not intend to use, the deferred tax asset for such purpose, the unrecognized tax benefit should be presented in the financial statements as a liability and should not be combined with deferred tax assets. The assessment of whether a deferred tax asset is available is based on the unrecognized tax benefit and deferred tax asset that exist at the reporting date and should be made presuming disallowance of the tax position at the reporting date. The amendments in this update are effective for fiscal years and interim periods within those years beginning after December 15, 2013. The Company does not believe that adoption of this update will have a material impact on its financial statements.

12

INTERNATIONAL RECTIFIER CORPORATION AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

2. Investments

Available-for-sale investments are carried at fair value, inclusive of unrealized gains and losses, and net of discount accretion and premium amortization computed using the level yield method. Net unrealized gains and losses are included in other comprehensive income (loss) net of applicable income taxes. Gains or losses on sales of available-for-sale investments are recognized using the first-in, first-out method and are included in other expense (income) or interest expense (income) depending upon the type of security.

Available-for-sale securities as of December 29, 2013 are summarized as follows (in thousands):

	Amortized Costs		Gross Unrealized Gain		Gross Unrealized Loss		Net Unrealized Gain		Market Value
Short-Term Investments:
U.S. government and agency obligations	$	4,999	$	2	$	—	$	2	$	5,001
Total short-term investments	$	4,999	$	2	$	—	$	2	$	5,001
Equity securities	$	11,631	$	14,870	$	—	$	14,870	$	26,501

Available-for-sale securities as of June 30, 2013 are summarized as follows (in thousands):

	Amortized Costs		Gross Unrealized Gain		Gross Unrealized Loss			Net Unrealized Gain		Market Value
Short-Term Investments:
Corporate debt	$	—	$	40	$	—		$	40	$	40
U.S. government and agency obligations	11,007		9		—			9		11,016
Total short-term investments	$	11,007	$	49	$	—		$	49	$	11,056
Equity securities	$	11,631	$	5,739	$	(5	)	$	5,734	$	17,365

The Company's investment policy is to manage its total cash and investments balances to preserve principal and maintain liquidity while achieving market returns on the investment portfolio.

The Company also holds as strategic investments the common stock of three publicly traded foreign companies. The common stock of the three companies is shown as “Equity securities” in the table above and is included in other assets on the consolidated balance sheets. The common shares of the publicly traded companies are traded on either the Tokyo Stock Exchange or the Taiwan Stock Exchange. The Company holds an option on one of the strategic investments to put the associated number of common shares back to the issuer at a fixed price in local currency (which is described as the “Put Option” in Note 1). The Put Option became effective September 1, 2009 and is reported at fair value. As of December 29, 2013, the fair value of the Put Option was $1.9 million, with changes in fair value recorded in other expense, net (See Note 3, “Derivative Financial Instruments”). The Company received no dividend income from these investments for each of the three months ended December 29, 2013 and December 23, 2012, and $0.1 million in dividend income for each of the six months endedDecember 29, 2013 and December 23, 2012.

The Company evaluates securities for other-than-temporary impairment on a quarterly basis. Impairment is evaluated considering numerous factors, and their relative significance varies depending on the situation. Factors considered include the length of time and extent to which the market value has been less than cost, the financial condition and near-term prospects of the issuer of the securities, and the intent and ability of the Company to retain the security in order to allow for an anticipated recovery in fair value. If, based upon the analysis, it is determined that the impairment is other-than-temporary, the security is written down to fair value and a loss is recognized through earnings.

There were no other-than-temporary impairments recorded for the Company's investments during each of the three and six months endedDecember 29, 2013 and December 23, 2012.

13

INTERNATIONAL RECTIFIER CORPORATION AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

2. Investments (Continued)

Unrealized loss positions are measured and determined at each fiscal quarter end. There were no available-for-sale investments in a gross unrealized loss position as of December 29, 2013. The following table summarizes the fair value and gross unrealized losses related to available-for-sale investments, aggregated by type of investment and length of time that individual securities were held in a loss position as of June 30, 2013 (in thousands):

	Securities held in a loss position for less than 12 months at June 30, 2013					Securities held in a loss position for 12 months or more at June 30, 2013				Total in a loss position at June 30, 2013
	Market Value		Gross Unrealized Losses			Market Value		Gross Unrealized Losses		Market Value		Gross Unrealized Losses
Equity Securities	$	1,052	$	(5	)	$	—	$	—	$	1,052	$	(5	)
Total	$	1,052	$	(5	)	$	—	$	—	$	1,052	$	(5	)

The amortized cost and estimated fair value of investments at December 29, 2013, by contractual maturity of investment, are as follows (in thousands):

Contractual Maturity	Amortized Cost		Estimated Market Value
Due in 1 year or less	$	4,999	$	5,001
Total investments	$	4,999	$	5,001

The Company may decide to dispose of securities prior to the contractual maturity date indicated in the table above.

During the three and six months endedDecember 29, 2013, the Company sold a de minimis amount of available-for-sale securities, and the related total proceeds and gross realized gains and (losses) were also de minimis. Available-for-sale securities were sold for total proceeds of $52.1 million during the three and six months ended December 23, 2012, and gross realized gains and (losses) were de minimis. The cost of marketable securities sold was determined by the first-in, first-out method.

Fair Value of Investments

The following tables present the balances of investments measured at fair value on a recurring basis, by type of investment (in thousands):

	As of December 29, 2013
	Total		Level 1		Level 2		Level 3
U.S. government and agency obligations	$	5,001	$	5,001	$	—	$	—
Equity securities-strategic investments	26,501		26,501		—		—
Total securities at fair value	$	31,502	$	31,502	$	—	$	—

	As of June 30, 2013
	Total		Level 1		Level 2		Level 3
Corporate debt	$	40	$	—	$	40	$	—
U.S. government and agency obligations	11,016		6,004		5,012		—
Equity securities-strategic investments	17,365		17,365		—		—
Total securities at fair value	$	28,421	$	23,369	$	5,052	$	—

14

INTERNATIONAL RECTIFIER CORPORATION AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

3. Derivative Financial Instruments

The Company is exposed to financial market risks, including fluctuations in interest rates, foreign currency exchange rates and market value risk related to its investments. The Company uses derivative financial instruments primarily to mitigate foreign exchange rate risks, but also as part of its strategic investment program. In the normal course of business, the Company also faces risks that are either non-financial or non-quantifiable. Such risks principally include country risk, credit risk and legal risk, and are not discussed or quantified in the following analysis. As of December 29, 2013, the Company’s only derivatives were currency forward contracts which were not designated as accounting hedges, the Put Option (See Note 2, “Investments”), and a call option on the equity of a private domestic company. The private domestic company is a development stage entity, and as such, the Company is unable to determine the fair value of the call option at this time.

Interest Rates

The Company is subject to interest rate risk through its investments. The objectives of the Company’s investments in debt securities are to preserve principal and maintain liquidity while achieving market returns on the investment portfolio. To achieve these objectives, the returns on the Company’s investments in short-term debt generally will be compared to LIBOR or to yields on money market instruments such as U.S. commercial paper programs and U.S. Treasury Bills.

Foreign Currency Exchange Rates

A significant amount of the Company's revenues, expense, and capital purchasing transactions are conducted on a global basis in several foreign currencies. To protect against exposure to currency exchange rate fluctuations, the Company has established a balance sheet transaction risk hedging program. Through this hedging program, the Company seeks to reduce, but does not eliminate, the impact of currency exchange rate movements.

The Company generally hedges the risks of foreign currency-denominated working capital positions with offsetting foreign currency-denominated exchange transactions, using currency forward contracts or spot transactions.  Transaction gains and losses on these foreign currency-denominated working capital positions are generally offset by corresponding gains and losses on the related hedging instruments, usually resulting in reduced net exposure. At various times, the Company has currency exposure related to the British Pound Sterling, the Euro, and the Japanese Yen.  For example, in the United Kingdom, the Company has a sales office and a semiconductor wafer fabrication facility with revenues in U.S. Dollars and Euros, and expenses in British Pounds Sterling and U.S. Dollars. The Company does not hedge its revenues and expenses against changes in foreign currency exchange rates, as it does notperceive the net risk of changes to translated revenues and expenses from changes in exchange rates as significant enough at this time to justify hedging.

For its balance sheet transaction risk hedging program, the Company had approximately $24.1 million in notional amounts of forward contracts not designated as accounting hedges outstanding at December 29, 2013.  Net realized and unrealized foreign currency gains (losses) related to foreign currency forward contracts not designated as accounting hedges, recognized in earnings as a component of other expense, net, were $(0.1) million and $0.9 million for the three and six months endedDecember 29, 2013, respectively, and $0.3 million and $(2.1) million for the three and six months endedDecember 23, 2012, respectively.

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INTERNATIONAL RECTIFIER CORPORATION AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

3. Derivative Financial Instruments (Continued)

At December 29, 2013 and June 30, 2013, the fair value carrying amounts of the Company’s derivative instruments were as follows (in thousands):

	December 29, 2013
	Derivative Assets			Derivative Liabilities
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Put Option	Other assets	$	1,930
Currency forward contracts				Other accrued expenses	$	10
Total		$	1,930		$	10

	June 30, 2013
	Derivative Assets
	Balance Sheet Location	Fair Value
Put Option	Other assets	$	2,888
Currency forward contracts	Prepaid expenses and other current assets	19
Total		$	2,907

The gain (loss) recognized in earnings as a component of other expense, net, for the Company’s derivatives not designated as hedging instruments during the three and six months endedDecember 29, 2013 and December 23, 2012 was comprised of the following (in thousands):

	Three Months Ended					Six Months Ended
	December 29, 2013			December 23, 2012		December 29, 2013			December 23, 2012
Put Option	$	(633	)	$	116	$	(958	)	$	202
Currency forward contracts	(85		)	285		865			(2,144		)
Total	$	(718	)	$	401	$	(93	)	$	(1,942	)

16

INTERNATIONAL RECTIFIER CORPORATION AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

3. Derivative Financial Instruments (Continued)

Fair Value

The following tables present derivative instruments measured at fair value on a recurring basis as of December 29, 2013 and June 30, 2013 (in thousands):

	December 29, 2013
	Total			Level 1		Level 2			Level 3
Put Option	$	1,930		$	—	$	—		$	1,930
Foreign currency derivatives:
Liabilities	(10		)	—		(10		)	—
Total derivative instruments at fair value, net	$	1,920		$	—	$	(10	)	$	1,930

	June 30, 2013
	Total		Level 1		Level 2		Level 3
Put Option	$	2,888	$	—	$	—	$	2,888
Foreign currency derivatives:
Assets	19		—		19		—
Total derivative instruments at fair value	$	2,907	$	—	$	19	$	2,888

4. Supplemental Cash Flow Disclosures

Components of the changes in operating assets and liabilities during the six months endedDecember 29, 2013 and December 23, 2012 were comprised of the following (in thousands):

	Six Months Ended
	December 29, 2013			December 23, 2012
Trade accounts receivable	$	(18,392	)	$	34,979
Inventories	(13,514		)	24,265
Prepaid expenses and other current assets	1,818			(255		)
Accounts payable	(3,706		)	(10,727		)
Accrued salaries, wages and commissions	(2,288		)	(175		)
Deferred compensation	402			(465		)
Accrued income taxes	4,266			(4,441		)
Other accrued expenses	(6,658		)	(17,573		)
Changes in operating assets and liabilities	$	(38,072	)	$	25,608

5. Inventories

At December 29, 2013 and June 30, 2013, inventories were comprised of the following (in thousands):

	December 29, 2013		June 30, 2013
Raw materials	$	56,370	$	58,471
Work-in-process	113,912		97,158
Finished goods	77,458		76,686
Total inventories	$	247,740	$	232,315

17

INTERNATIONAL RECTIFIER CORPORATION AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

6. Goodwill and Acquisition-Related Intangible Assets

At December 29, 2013 and June 30, 2013, acquisition‑related intangible assets included the following (in thousands):

		December 29, 2013
	Amortization Periods (Years)	Gross Carrying Amount		Accumulated Amortization			Net
Completed technology	4 - 12	$	52,045	$	(41,467	)	$	10,578
Customer lists	5 - 12	10,430		(7,738		)	2,692
Intellectual property and other	2 - 15	16,763		(11,370		)	5,393
Total acquisition‑related intangible assets		$	79,238	$	(60,575	)	$	18,663

		June 30, 2013
	Amortization Periods (Years)	Gross Carrying Amount		Accumulated Amortization			Net
Completed technology	4 - 12	$	52,045	$	(39,163	)	$	12,882
Customer lists	5 - 12	10,430		(7,313		)	3,117
Intellectual property and other	2 - 15	16,763		(10,839		)	5,924
Total acquisition‑related intangible assets		$	79,238	$	(57,315	)	$	21,923

As of December 29, 2013, the following table represents the total estimated amortization of intangible assets for the remainder of fiscal year 2014 and the five succeeding fiscal years (in thousands):

			Fiscal Year
	Total		2014		2015		2016		2017		2018		2019 and thereafter
Estimated amortization expense	$	18,663	$	3,160	$	6,220	$	4,681	$	1,463	$	897	$	2,242

Goodwill

The Company evaluates the carrying value of goodwill annually during the fourth quarter of each fiscal year and more frequently if it believes indicators of impairment exist.  In evaluating goodwill, a two-step goodwill impairment test is applied to each reporting unit.  The Company identifies reporting units and determines the carrying value of each reporting unit by assigning the assets and liabilities, including the existing goodwill, to those reporting units.  In the first step of the impairment test, the Company estimates the fair value of the reporting unit.  If the fair value of the reporting unit is less than the carrying value of the reporting unit, the Company performs the second step which compares the implied fair value of the reporting unit with the carrying amount of the reporting unit and writes down the carrying amount of the goodwill to the implied fair value.

At December 29, 2013 and June 30, 2013, the carrying amount of goodwill by reportable segment was as follows (in thousands):

Business Segments:	December 29, 2013		June 30, 2013
Energy Saving Products	$	33,190	$	33,190
HiRel	18,959		18,959
Total goodwill	$	52,149	$	52,149

18

INTERNATIONAL RECTIFIER CORPORATION AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

7. Revolving Credit Facility and Bank Letters of Credit

Revolving Credit Facility

On October 25, 2012, the Company entered into a Credit Agreement (the “Credit Agreement”), as borrower, with Wells Fargo Bank, National Association, as Administrative Agent (“Agent”), and certain lenders (the “Lenders”), pursuant to which it established a senior unsecured revolving credit facility (the “Credit Facility”) in an aggregate principal amount of $100 million with sublimits for swingline loans (of $25 million) and the issuance of letters of credit (of $10 million). The Credit Facility matures on October 25, 2016. The proceeds of the Credit Facility may be used by the Company to finance certain capital expenditures and acquisitions permitted thereunder, to provide for the working capital and general corporate needs as well as to pay fees, commissions and expenses associated with the Credit Facility.

The terms of the Credit Agreement require the Company to comply with certain financial tests, and include various affirmative and negative covenants, representations and warranties, conditions and events of default. Additionally, the Credit Facility is subject to a commitment fee on the unused portion at an initial rate equal to 0.25 percent per annum. As of December 29, 2013, the Company was in compliance with the financial covenants, and there were no amounts outstanding under the Credit Facility.

Bank Letters of Credit

At December 29, 2013, the Company had $0.7 million of outstanding letters of credit. These letters of credit are secured by cash collateral provided by the Company equal to their face amount.

8. Other Accrued Expenses

At December 29, 2013 and June 30, 2013, other accrued expenses were comprised of the following (in thousands):

	December 29, 2013		June 30, 2013
Sales returns	$	35,418	$	33,902
Accrued accounting and legal costs	10,421		8,108
Deferred revenue	11,826		9,678
Accrued warranty	1,787		1,992
Accrued utilities	2,320		2,516
Accrued repurchase obligation	2,553		4,759
Accrued sales and other taxes	4,927		3,053
Accrued subcontractor costs	1,384		1,307
Accrued rent	4,331		4,858
Other	5,096		8,241
Total other accrued expenses	$	80,063	$	78,414

Warranty

The Company records warranty liabilities at the time of sale for the estimated costs to be incurred under the terms of its warranty agreements. The specific warranty terms and conditions vary depending upon product sold and the country in which the Company does business. In general, for standard products, the Company will replace defective parts not meeting the Company’s published specifications at no cost to the customers. Factors that affect the liability include historical and anticipated failure rates of products sold, and cost per claim to satisfy the warranty obligation. If actual results differ from the estimates, the Company revises its estimated warranty liability to reflect such changes.

19

INTERNATIONAL RECTIFIER CORPORATION AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

8. Other Accrued Expenses (Continued)

The following table details the changes in the Company’s warranty reserve for the six months endedDecember 29, 2013, which is included in other accrued liabilities in the schedule above (in thousands):

Accrued warranty, June 30, 2013	$	1,992
Accruals for warranties issued during the period	1,193
Changes in estimates related to pre-existing warranties	13
Warranty claim settlements	(1,411		)
Accrued warranty, December 29, 2013	$	1,787

9. Other Long-Term Liabilities

At December 29, 2013 and June 30, 2013, other long-term liabilities were comprised of the following (in thousands):

	December 29, 2013		June 30, 2013
Income taxes payable	$	3,346	$	12,344
Deferred compensation	11,012		9,903
Other	2,518		2,283
Total other long-term liabilities	$	16,876	$	24,530

Fair Value of Long-term Liabilities

The following tables present the long-term liabilities and the related assets measured at fair value on a recurring basis as of December 29, 2013 and June 30, 2013 (in thousands):

	December 29, 2013
	Total		Level 1		Level 2		Level 3
Employee deferred compensation plan liability	$	9,370	$	9,370	$	—	$	—
Assets of employee deferred compensation plan (reported in other assets)	10,225		10,225		—		—

	June 30, 2013
	Total		Level 1		Level 2		Level 3
Employee deferred compensation plan liability	$	8,326	$	8,326	$	—	$	—
Assets of employee deferred compensation plan (reported in other assets)	9,472		9,472		—		—

20

INTERNATIONAL RECTIFIER CORPORATION AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

10. Changes in Accumulated Other Comprehensive Income (Loss)

The following table details the changes in the Company’s accumulated other comprehensive income (loss) balance for the six months endedDecember 29, 2013 (net of tax effect of $0, in thousands):

	Foreign Currency Translation Adjustments			Unrealized gain (loss) on available-for-sale securities			Total
Balance at June 30, 2013	$	(22,266	)	$	463		$	(21,803	)
Other comprehensive income before reclassifications	20,365			9,125			29,490
Amounts reclassified from accumulated other comprehensive income (loss)	—			(36		)	(36		)
Net other comprehensive income	$	20,365		$	9,089		$	29,454
Balance at December 29, 2013	$	(1,901	)	$	9,552		$	7,651

As a result of sales of available-for-sale securities, the Company reclassified a de minimis amount from accumulated other comprehensive income (loss) to earnings as a component of interest income, net, for the six months endedDecember 29, 2013. There were no amounts reclassified from accumulated other comprehensive income (loss) for the three months ended December 29, 2013, or for each of the three and six months endedDecember 23, 2012.

11. Stock‑Based Compensation

The Company issues new shares to fulfill the obligations under all of its stock‑based compensation awards.  Such shares are subject to registration under applicable securities laws, including the rules and regulations promulgated by the SEC, unless an applicable exemption applies.

During the six months endedDecember 29, 2013, the Company granted an aggregate of 4,000 stock options to Company employees under its 2011 Performance Incentive Plan (the "2011 Plan").  Subject to the terms and conditions of the 2011 Plan and applicable award documentation, such awards generally vest and become exercisable in equal installments over each of the first three anniversaries of the date of grant, with a maximum award term of five years.

The following table summarizes the stock option activity for the six months endedDecember 29, 2013 (in thousands, except per share price data):

	Stock Option Shares		Weighted Average Option Exercise Price per Share		Weighted Average Grant Date Fair Value per Share		Aggregate Intrinsic Value
Outstanding, June 30, 2013	1,187		$	17.08			$	4,978
Granted	4		$	24.76	$	6.82
Exercised	(673	)	$	16.19			$	5,330
Expired or forfeited	(5	)	$	16.83
Outstanding, December 29, 2013	513		$	18.31			$	3,919

For the six months endedDecember 29, 2013 and December 23, 2012, the Company received proceeds of $10.9 million and $1.0 million, respectively, as a result of the exercise of stock options issued under its stock based compensation plans. There were no tax benefits realized from issuance of stock-based awards for each of the three and six months endedDecember 29, 2013 and December 23, 2012.

21

INTERNATIONAL RECTIFIER CORPORATION AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

11. Stock-Based Compensation (Continued)

During the six months endedDecember 29, 2013, the Company granted 25,050 Restricted Stock Units ("RSUs") to employees, and 43,704 RSUs to members of the Board of Directors (the "Board"), in each case under the 2011 Plan. The RSUs provided for vesting over a period of service, subject to the terms and conditions of the 2011 Plan and the applicable award documentation. For the RSU awards made to employees, the vesting of awards generally takes place in equal installments over each of the first three anniversaries of the date of grant.The RSU awards made to members of the Board were made as part of the Board’s annual director compensation program, under which the vesting of RSU awards takes place generally on the first anniversary of the date of grant.

The following table summarizes the RSU activity for the six months endedDecember 29, 2013 (in thousands, except per share price data):

	Restricted Stock Units		Weighted Average  Grant Date Fair Value Per Share		Aggregate Intrinsic Value
Outstanding, June 30, 2013	3,696		$	21.31	$	77,394
Granted	69		$	24.73
Vested	(215	)	$	18.99	$	4,901
Expired or forfeited	(94	)	$	22.08
Outstanding, December 29, 2013	3,456		$	21.51	$	88,288

The Company's stock-based compensation plans permit the reduction of a participant’s RSUs for purposes of settling a participant’s income tax withholding obligation. During the six months endedDecember 29, 2013, the Company withheld RSUs representing 52,516 underlying shares to fund participant income tax withholding obligations.

Additional information relating to the Company’s stock based compensation plans, including employee stock options and RSUs at December 29, 2013 and June 30, 2013 is as follows (in thousands):

	December 29, 2013	June 30, 2013
Outstanding options exercisable	377	1,039
Options and RSUs available for grant	6,079	6,040
Total reserved common stock shares for stock option plans	10,048	10,923

Forfeitures are estimated at the time of grant. Based on the Company’s historical exercise and termination data, a four percent forfeiture rate is assumed for the majority of the options and RSUs.

For the three and six months endedDecember 29, 2013 and December 23, 2012, stock‑based compensation expense associated with the Company’s stock options and RSUs was as follows (in thousands):

	Three Months Ended				Six Months Ended
	December 29, 2013		December 23, 2012		December 29, 2013		December 23, 2012
Cost of sales	$	1,362	$	1,123	$	2,610	$	2,281
Selling, general and administrative expense	3,123		2,858		6,650		6,018
Research and development expense	2,142		1,397		4,229		2,818
Total stock‑based compensation expense	$	6,627	$	5,378	$	13,489	$	11,117

22

INTERNATIONAL RECTIFIER CORPORATION AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

11. Stock-Based Compensation (Continued)

The total unrecognized compensation expense for outstanding stock options and RSUs was $39.8 million as of December 29, 2013. The weighted average number of years to recognize the total compensation expense for stock options and RSUs are 1.8 and 1.7, respectively.

The fair value of the stock options associated with the above compensation expense for the six months endedDecember 29, 2013 and December 23, 2012 was determined at the grant date using the Black‑Scholes option pricing model with the following weighted average assumptions:

	December 29, 2013		December 23, 2012
Expected life	3.5 years		3.5 years
Risk free interest rate	0.70	%	0.36	%
Volatility	36.37	%	39.30	%
Dividend yield	0.00	%	0.00	%

12. Asset Impairment, Restructuring and Other Charges (Recoveries)

Asset impairment, restructuring and other charges reflect the impact of certain cost reduction programs and initiatives implemented by the Company. These programs and initiatives include the closing of facilities, the termination of employees and other related activities. Asset impairment, restructuring and other charges include program-specific exit costs, severance benefits pursuant to an ongoing benefit arrangement, and special termination benefits. Severance costs unrelated to the Company's restructuring initiatives are recorded as an element of cost of sales, research and development (“R&D”) or selling, general and administrative expense (“SG&A”), depending upon the classification and function of the employment position terminated. Restructuring costs are expensed during the period in which all requirements of recognition are met.

Asset write-downs are principally related to facilities and equipment that will not be used subsequent to the completion of exit or downsizing activities being implemented, and cannot be sold for amounts in excess of carrying value. In determining the asset groups for the purpose of calculating write-downs, the Company groups assets at the lowest level for which identifiable cash flows are largely independent of the cash flows of other assets and liabilities. In determining whether an asset is impaired, the Company evaluates estimated undiscounted future cash flows and other factors such as changes in strategy and technology. An impairment loss exists if the estimated undiscounted future cash flows are less than the carrying amount of the asset group. The Company then determines the fair value of the asset group by discounting the estimated future cash flows, consistent with the cash flows of a market participant, at a discount rate that is used when analyzing potential acquisitions. The Company then compares the fair value of the asset group with the carrying amount of the asset group and writes down the carrying amount of the asset group to its fair value.

During the first quarter of fiscal year 2013, the Company announced a restructuring plan to modify its manufacturing strategy and lower its operating expenses in order to align its cost structure with business conditions. As part of the plan, the Company has incurred and expects to further incur costs recorded in asset impairment, restructuring and other charges related primarily to the following:

• Fiscal Year 2013 El Segundo Fabrication Facility Closure Initiative

• Fiscal Year 2013 Newport Fabrication Facility Resizing Initiative

• Fiscal Year 2013 Other Cost Reduction Activities Initiative (completed in fiscal year 2013)

23

INTERNATIONAL RECTIFIER CORPORATION AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

12. Asset Impairment, Restructuring and Other Charges (Recoveries) (Continued)

The following tables summarize the total asset impairment, restructuring and other charges (recoveries) by initiative for the three and six months endedDecember 29, 2013 and December 23, 2012 (in thousands):

	Three Months Ended
Fiscal Year 2013 Initiatives	December 29, 2013
	El Segundo Fabrication Facility Closure Initiative			Newport Fabrication Facility Resizing Initiative		Other Cost Reduction Activities Initiative		Total
Reported in asset impairment, restructuring and other charges:
Asset impairment	$	—		$	—	$	—	$	—
Severance and workforce reduction costs (recoveries)	(9		)	—		—		(9		)
Decommissioning costs	—			93		—		93
Relocation and re-qualification costs	—			931		—		931
Total asset impairment, restructuring and other charges (recoveries)	$	(9	)	$	1,024	$	—	$	1,015

	Three Months Ended
Fiscal Year 2013 Initiatives	December 23, 2012
	El Segundo Fabrication Facility Closure Initiative		Newport Fabrication Facility Resizing Initiative		Other Cost Reduction Activities Initiative		Total
Reported in asset impairment, restructuring and other charges:
Asset impairment	$	178	$	666	$	1,062	$	1,906
Severance and workforce reduction costs	170		597		1,509		2,276
Decommissioning costs	—		55		—		55
Relocation and re-qualification costs	210		494		—		704
Total asset impairment, restructuring and other charges	$	558	$	1,812	$	2,571	$	4,941

	Six Months Ended
Fiscal Year 2013 Initiatives	December 29, 2013
	El Segundo Fabrication Facility Closure Initiative			Newport Fabrication Facility Resizing Initiative		Other Cost Reduction Activities Initiative		Total
Reported in asset impairment, restructuring and other charges:
Asset impairment	$	—		$	—	$	—	$	—
Severance and workforce reduction costs (recoveries)	(22		)	141		—		119
Decommissioning costs	—			177		—		177
Relocation and re-qualification costs	4			2,117		—		2,121
Total asset impairment, restructuring and other charges (recoveries)	$	(18	)	$	2,435	$	—	$	2,417

24

INTERNATIONAL RECTIFIER CORPORATION AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

12. Asset Impairment, Restructuring and Other Charges (Recoveries) (Continued)

	Six Months Ended
Fiscal Year 2013 Initiatives	December 23, 2012
	El Segundo Fabrication Facility Closure Initiative		Newport Fabrication Facility Resizing Initiative		Other Cost Reduction Activities Initiative		Total
Reported in asset impairment, restructuring and other charges:
Asset impairment	$	178	$	666	$	1,062	$	1,906
Severance and workforce reduction costs	5,857		597		4,788		11,242
Decommissioning costs	—		55		—		55
Relocation and re-qualification costs	210		494		—		704
Total asset impairment, restructuring and other charges	$	6,245	$	1,812	$	5,850	$	13,907

In addition to the amounts in the tables above, other charges related to the restructuring initiatives recorded in cost of sales were $0.7 million and $1.1 million for the three and six months endedDecember 29, 2013, respectively, and $0.4 million and $1.3 million for the three and six months endedDecember 23, 2012, respectively. These charges, which were primarily for accelerated depreciation, are not classifiable as restructuring costs, and were recorded in cost of sales.

The following table summarizes changes in the Company's restructuring related accruals related to its fiscal year 2013 initiatives for the six months endedDecember 29, 2013, which are included in accrued salaries, wages, and commissions on the balance sheet (in thousands):

Fiscal Year 2013 Initiatives	El Segundo Fabrication Facility Closure Initiative			Newport Fabrication Facility Resizing Initiative			Other Cost Reduction Activities Initiative		Total
Accrued severance and workforce reduction costs at June 30, 2013	$	197		$	—		$	—	$	197
Accrued (recovered) during the period and charged to asset impairment, restructuring and other charges	(22		)	141			—		119
Costs paid during the period	(31		)	(141		)	—		(172		)
Accrued severance and workforce reduction costs at December 29, 2013	$	144		$	—		$	—	$	144

Fiscal Year 2013 El Segundo Fabrication Facility Closure Initiative

During fiscal year 2013, the Company adopted a restructuring plan to close its El Segundo wafer fabrication facility. The closure took place in March 2013. During each of the three and six months endedDecember 29, 2013, the Company incurred de minimis asset impairment, restructuring and other charges (recoveries). The Company incurred asset impairment, restructuring and other charges of $0.6 million and $6.2 million during the three and six months endedDecember 23, 2012, respectively. In connection with the plan, the Company estimates total pre-tax costs of $6.5 million. The estimated total costs consist of $5.9 million of severance and workforce reduction costs, $0.4 million of relocation and re-qualification costs, and $0.2 million of asset impairment costs.

In addition to the restructuring charges above, the Company recorded $0.4 million and $1.3 million of other charges related to the restructuring initiative in cost of sales for the three and six months endedDecember 23, 2012, respectively. These other charges, which were for accelerated depreciation and inventory write-downs, are not classifiable as restructuring costs, and affected the Energy Saving Products reporting segment. The Company recorded no such charges during each of the three and six months endedDecember 29, 2013.

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NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

12. Asset Impairment, Restructuring and Other Charges (Recoveries) (Continued)

During each of the three and six months endedDecember 29, 2013, the Company made de minimis cash payments for this initiative. During the three and six months endedDecember 23, 2012, cash payments for this initiative were $1.6 million and $2.4 million, respectively. Remaining cash payments are estimated to be approximately $0.2 million through June 2015.

In addition, the Company estimates it will make total cash expenditures of $2.5 million for the decommissioning and restoration of the El Segundo wafer fabrication facility. These costs were previously considered as part of the asset impairment of the facility recorded in the fourth quarter of fiscal year 2012, and are not anticipated to result in additional restructuring charges.

Fiscal Year 2013 Newport Fabrication Facility Resizing Initiative

During fiscal year 2013, the Company adopted a restructuring plan to resize its wafer fabrication facility in Newport, Wales. The resizing of the facility is planned to take place in several phases, and is expected to be completed by the middle of calendar year 2015. The Company incurred $1.0 million and $2.4 million of asset impairment, restructuring and other charges for the three and six months endedDecember 29, 2013, respectively. The Company incurred $1.8 million of asset impairment, restructuring and other charges for each of the three and six months endedDecember 23, 2012. In connection with the plan, the Company estimates total pre-tax costs of approximately $16.5 million. These consist of approximately $0.7 million of asset impairment costs, $3.2 million of severance and workforce reduction costs, $5.7 million of decommissioning costs, and $6.9 million of relocation and re-qualification costs.

In addition to the restructuring charges above, the Company recorded $0.6 million and $1.1 million of other charges related to the restructuring initiative in cost of sales for the three and six months endedDecember 29, 2013, respectively. These other charges, which were for accelerated depreciation, are not classifiable as restructuring costs. The Company recorded no such charges during each of the three and six months endedDecember 23, 2012.

Cash payments for this initiative were $1.2 million and $2.4 million for the three and six months endedDecember 29, 2013, respectively, and $1.1 million for each of the three and six months endedDecember 23, 2012. Remaining cash payments are estimated to be approximately $10.0 million for the remainder of the initiative.

Fiscal Year 2013 Other Cost Reduction Activities Initiative

During fiscal year 2013, the Company completed all actions for this initiative. These actions included reducing (i) capacity at manufacturing facilities in Mexico, California, and Arizona, and (ii) administrative and research and development costs around the world. As part of the plan, the Company incurred approximately $1.5 million and $4.8 million of severance and workforce reduction costs during the three and six months endedDecember 23, 2012, respectively. The severance and workforce reduction costs recorded during the three months ended December 23, 2012 included $0.6 million for research and development functions, $0.5 million for manufacturing functions, and $0.4 million for general and administrative functions. During the six months endedDecember 23, 2012, severance and workforce reduction costs included $2.6 million related to manufacturing functions, and $1.1 million for general and administrative functions, and $1.1 million for research and development functions.

During each of the three and six months endedDecember 23, 2012, the Company incurred $1.1 million of asset impairment costs for the planned disposition of certain manufacturing equipment related to its manufacturing facility in Mexico. During the three and six months endedDecember 23, 2012, cash payments for this initiative were $1.9 million and $3.8 million, respectively.

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NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

13. Segment Information

The Company reports in six segments which correspond to the way the Company manages its business and interacts with customers. These reportable segments, which correspond to operating segments include:

Power Management Devices (“PMD”) - The PMD segment provides high performance power MOSFETs

with the widest range of packages up to 250V within the power management semiconductor industry for a range of applications including power supply, data processing, telecommunications, industrial, and commercial battery-powered systems. Key products used by the PMD segment include Trench HEXFET®MOSFETs, Discrete HEXFET®MOSFETs, Dual HEXFET®MOSFETs, FETKY®s, and DirectFET®s.

Energy Saving Products (“ESP”) - The ESP segment provides integrated design platforms that enable our customers to add energy-conserving features to help achieve lower operating energy and manufacturing costs. The integrated design platforms incorporate silicon packaging technology to help improve system performance. The ESP segment’s primary market applications include motor control appliances, industrial automation, lighting and display, audio and video. The ESP segment’s key products include analog HVICs and IGBT platforms, digital control ICs and IRAM integrated power modules. The ESP segment’s iMotion platform targets the growing trend towards variable speed motors in the appliance market.

Automotive Products (“AP”) - The AP segment provides high performance and energy saving solutions for a broad variety of automotive systems, ranging from typical 12V power net applications up to 1200V hybrid electric vehicle applications. The Company's automotive expertise includes supplying products for various automotive applications including AC and DC motor drives of all power classes, actuator drivers, automotive lighting (such as LED or high intensity discharge lamps), direct fuel injection for diesel and gasoline engines, hybrid electric vehicle power train and peripheral systems for micro, mid, full and plug-in hybrids for electric vehicles, as well as for body electronic systems like glow plugs, Positive Temperature Coefficient (“PTC”) heaters, electric power steering, fuel pumps, Heating Ventilation and Air Conditioning (“HVAC”) and rear wipers. The Company's automotive product designs are used in solutions, integrated circuits (“ASICs”) and standard parts (“ASSPs”) and generic high volume products for multiple original equipment manufacturer (“OEM”) platform usage. The AP segment's key products include HVICs, intelligent power switch ICs, power MOSFETs including DirectFET®, IGBTs, Diodes and advanced power modules.

Enterprise Power (“EP”) – The EP segment provides high performance analog and digital end-to-end power solutions for servers, storage, routers, switches, infrastructure equipment, notebooks, graphic cards, and gaming consoles. The large and growing server market has placed an emphasis and premium on power density, efficiency and performance. The Company sees this trend increasing in other EP segment target applications. The Company offers a broad portfolio of power management system products that deliver benchmark power density, efficiency and performance. The EP segment's key products include CHiL digital PWM controllers, PowIRstagesTM, SupIRBuckTM, DirectFET® discrete products, XPhase®, iPOWIR® voltage regulators, Low voltage ICs, and power monitoring products.

HiRel - The HiRel segment provides high-reliability power components and sub-assemblies designed to address power management requirements in mission critical applications including satellites and space exploration vehicles, military hardware, and other high reliability applications such as commercial aircraft, undersea telecommunications, and oil drilling in heavy industry, as well as products used in biomedical applications. The HiRel segment has a legacy of more than thirty years of experience in many of these applications, has developed strategic relationships with major system integrators worldwide and has the knowledge, technology and processes required to meet the requirements of customers in the high-reliability markets. The HiRel segment's key products include RAD-Hard discretes, RAD-Hard ICs, power management modules, DC-DC converters, high temperature converters, and energy storage and management systems.

Intellectual Property (“IP”) - The IP segment includes revenues from the sale of the Company’s technologies and manufacturing process know-how, in addition to the operating results of the Company’s patent licensing and settlements of claims brought against third parties. The Company continues, from time to time, to enter into opportunistic licensing arrangements that it believes are consistent with its business strategy.

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NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

13. Segment Information (Continued)

The Company does not allocate assets, sales and marketing, information systems, finance and administrative costs and asset impairment, restructuring and other charges to the operating segments, as these are not meaningful statistics to the Chief Executive Officer ("CEO") in making resource allocation decisions or in evaluating performance of the operating segments. Because operating segments are generally defined by the products they design and sell, they do not make sales to each other.

The Company does not directly allocate assets to its operating segments, nor does the CEO evaluate operating segments using discrete asset information. However, depreciation and amortization related to the manufacturing of goods is included in gross profit for the segments as part of manufacturing overhead. Due to the Company’s methodology for product level costing, it is impractical to determine the amount of depreciation and amortization included in each segment’s gross profit.

The Company’s “Customer Segments” as referred to herein include its PMD, ESP, AP, EP and HiRel reporting segments.

For the three and six months endedDecember 29, 2013 and December 23, 2012, revenues and gross margin by reportable segments were as follows (in thousands, except percentages):

	Three Months Ended
	December 29, 2013						December 23, 2012
Business Segment	Revenues		Percentage of Total		Gross Margin		Revenues		Percentage of Total		Gross Margin
Power Management Devices	$	102,878	38.1	%	30.0	%	$	83,273	37.2	%	14.5	%
Energy Saving Products	46,589		17.3		31.5		36,174		16.2		14.8
Automotive Products	36,364		13.5		31.2		28,414		12.7		11.1
Enterprise Power	33,195		12.3		42.4		28,649		12.8		25.0
HiRel	50,665		18.8		52.6		47,061		21.0		44.7
Customer Segments Total	269,691		99.9		36.2		223,571		99.9		21.8
Intellectual Property	274		0.1		100.0		251		0.1		100.0
Consolidated Total	$	269,965	100.0	%	36.3	%	$	223,822	100.0	%	21.9	%

	Six Months Ended
	December 29, 2013						December 23, 2012
Business Segment	Revenues		Percentage of Total		Gross Margin		Revenues		Percentage of Total		Gross Margin
Power Management Devices	$	204,844	38.0	%	30.4	%	$	174,100	36.6	%	17.6	%
Energy Saving Products	97,086		18.0		32.2		80,629		16.9		14.4
Automotive Products	72,827		13.5		31.8		57,252		12.0		10.8
Enterprise Power	65,444		12.1		40.0		66,458		14.0		32.4
HiRel	98,998		18.3		50.3		95,477		20.0		50.2
Customer Segments Total	539,199		99.9		35.7		473,916		99.5		24.9
Intellectual Property	516		0.1		100.0		2,398		0.5		72.5
Consolidated Total	$	539,715	100.0	%	35.8	%	$	476,314	100.0	%	25.1	%

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NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

14. Income Taxes

The Company recorded a tax benefit of $1.6 million, or (10.0) percent of pre-tax income of $16.3 million, for the three months ended December 29, 2013. The main component of the tax benefit was an $8.1 million net reduction in foreign uncertain tax positions, primarily related to: (i) a reduction of taxes of $6.3 million and (ii) related interest and penalties of $1.3 million, both arising from lapses in statutes of limitation in certain foreign jurisdictions. The remaining $0.5 million benefit arose from settlements with certain foreign tax authorities. The benefit was partially offset by: (i) a $5.7 million expense related primarily to foreign income taxes, (ii) a $0.5 million expense related to foreign withholding taxes, and (iii) a $0.4 million expense in other income taxes.

The Company recorded a tax expense of $5.2 million, or 16.4 percent of pre-tax income of $31.9 million, for the six months endedDecember 29, 2013. The main components of the tax expense were: (i) an $8.8 million expense primarily related to foreign income taxes, (ii) a reduction in the United Kingdom ("U.K.") statutory tax rates, reducing the value of the Company's net deferred tax assets in the U.K. by $4.0 million, (iii) $1.0 million in foreign withholding taxes, and (iv) $0.5 million in settlements with respect to income tax audits in certain tax jurisdictions. These expenses were partially offset by a net reduction in various foreign uncertain tax positions and related interest and penalties, which arose from lapses in statutes of limitation, totaling approximately $8.9 million.

The Company recorded a tax benefit of $2.4 million, or 6.9 percent against a loss of $35.1 million, for the three months ended December 23, 2012. The main component of the tax benefit was a reduction in foreign uncertain tax positions arising from lapses in statutes of limitation totaling $4.3 million. This benefit was partially offset by an expense related to foreign withholding taxes, foreign income taxes, and the lack of tax benefit from the ordinary loss in the U.S. due to the Company's valuation allowance position.

The Company recorded a tax expense of $4.5 million, or (8.0) percent against a loss of $57.0 million, for the six months endedDecember 23, 2012. The main components of the tax expense were: (i) a decrease in the U.K. statutory tax rates, which reduced the value of the Company's net deferred tax assets in the U.K. by $3.2 million, (ii) expenses related to foreign income taxes and foreign withholding taxes, and (iii) the lack of tax benefit from the ordinary loss in the U.S. due to the Company's valuation allowance position. These expenses were partially offset by a reduction in uncertain tax positions, and by the benefit of a loss in a foreign jurisdiction.

The Company evaluates its net deferred income tax assets quarterly to determine if valuation allowances are required. Based on the consideration of all available evidence using a “more-likely-than-not” standard, as of December 29, 2013 the Company has determined that the valuation allowance established against its federal and state deferred tax assets in the U.S. should remain in place through fiscal year 2014.  These valuation allowances relate to the Company's beginning of fiscal year 2014 balances of reserves, which were established during fiscal year 2009.

The Company operates in multiple foreign jurisdictions with lower statutory tax rates compared to the U.S., and its operations in Singapore generally have the most significant impact on the Company’s effective tax rate. During fiscal year 2011, the Company was granted certain incentives, which were then amended in fiscal year 2013, by the Singapore Economic Development Board. As a result of these incentives, the Company operates under a tax holiday in Singapore, effective from December 27, 2010 through December 26, 2022.  The tax holiday is conditioned upon the Company meeting certain employment and investment thresholds which have been met to date. The Company did not realize a benefit from this tax holiday for this reporting period.

During the three months ended December 29, 2013, the reserve for uncertain tax positions decreased by $6.3 million to $39.6 million. The reduction in the reserve for uncertain tax position consisted of: (i) a $6.3 million reduction due to lapses in the statutes of limitation in certain foreign jurisdictions, (ii) $0.5 million resulting from settlements with certain foreign tax authorities, and (iii) a $0.2 million foreign currency translation adjustment. The reduction was partially offset by a $0.7 million accrual for new uncertain tax positions. For fiscal year 2014, the benefits associated with uncertain tax positions are anticipated to result in a benefit to income taxes on the consolidated statement of operations of $3.3 million, and if recognized, would reduce the Company's future effective tax rate accordingly. The reserve is expected to decrease by $0.7 million during the next 12 months primarily due to lapses in the statutes of limitation in certain foreign jurisdictions.

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NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

14. Income Taxes (Continued)

While it is often difficult to predict the final outcome or the timing of the resolution of any particular uncertain tax position, the Company believes its reserve for income taxes represents the most probable outcome. The Company adjusts this reserve, including the portion related to interest, in light of changing facts and circumstances. As of December 29, 2013, the Company had a reserve balance of $1.3 million of interest and penalties related to uncertain tax positions. For the three months ended December 29, 2013, penalties and interest included in the reserves decreased by $1.4 million primarily due to lapses in the applicable statutes of limitation.

As of December 29, 2013, U.S. income taxes have been provided on approximately $4.0 million of undistributed earnings of foreign subsidiaries. The amount represents excess cash held by foreign subsidiaries not required for working capital, capital expenditures and other needs of the foreign subsidiaries. The remaining unrepatriated foreign earnings are considered to be invested indefinitely.

Pursuant to Sections 382 and 383 of the U.S. Internal Revenue Code (the "Code"), the utilization of net operating losses (“NOLs”) and other tax attributes may be subject to substantial limitations if certain ownership changes occur during a three-year testing period (as defined under the Code). The Company does not believe an ownership change has occurred that would limit the Company's utilization of any NOL, credit carry forward or other related tax attributes.

15. Net Income (Loss) per Common Share

Basic earnings per share ("EPS") is computed based on the weighted average number of shares of common stock outstanding during the period. Diluted EPS is computed based on the weighted average number of shares of common stock plus the effect of dilutive potential common shares outstanding during the period using the treasury stock method. Dilutive potential common shares include outstanding stock options and RSUs.

The table below provides a computation of basic and diluted earnings per share for the three and six months endedDecember 29, 2013 and December 23, 2012 (in thousands, except per share amounts):

	Three Months Ended					Six Months Ended
	December 29, 2013		December 23, 2012			December 29, 2013		December 23, 2012
Net income (loss)	$	17,921	$	(32,722	)	$	26,644	$	(61,497	)
Net income (loss) per common share – basic
Basic weighted average common shares outstanding	71,147		69,144			70,988		69,213
Basic net income (loss) per common share	$	0.25	$	(0.47	)	$	0.38	$	(0.89	)
Net income (loss) per common share – diluted
Basic weighted average common shares outstanding	71,147		69,144			70,988		69,213
Effect of dilutive securities – stock options and RSU’s	1,016		—			897		—
Diluted weighted average common shares outstanding	72,163		69,144			71,885		69,213
Diluted net income (loss) per common share	$	0.25	$	(0.47	)	$	0.37	$	(0.89	)

For the three and six months endedDecember 29, 2013, de minimis shares and 0.1 million shares of common stock equivalents, respectively, were anti-dilutive and were not included in the computation of diluted earnings per share for these periods. For each of the three and six months endedDecember 23, 2012, 2.4 million shares of common stock equivalents were anti-dilutive and were not included in the computation of diluted earnings per share for these periods. In addition, for each of the three and six months endedDecember 29, 2013, 1.1 million shares of contingently issuable RSUs for which all necessary conditions had not been met were not included in the computation of diluted earnings per share.

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NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

16. Environmental Matters

Federal, state, local and foreign laws and regulations impose various restrictions and controls on the storage, use and discharge of certain materials, chemicals and gases used in semiconductor manufacturing processes, and on the operation of the Company's facilities and equipment. The Company believes it uses reasonable efforts to maintain a system of compliance and controls for these laws and regulations. Despite its efforts and controls, from time to time, issues may arise with respect to these matters. Additionally, under some of these laws and regulations, the Company could be held financially responsible for remedial measures if properties are contaminated or if waste is sent to a landfill or recycling facility that becomes contaminated. Also, the Company may be subject to common law claims if released substances damage or harm third parties. The Company cannot make assurances that changes in environmental laws and regulations will not require additional investments in capital equipment and the implementation of additional compliance programs in the future, which could have a material adverse effect on the Company's results of operations, financial position or cash flows, as could any failure by or violation of the Company to comply with any prior, current or future environmental laws and regulations.

In February 2012, the Company notified the California Department of Toxic Substances Control (“DTSC”) and local districts that the Company’s Temecula California manufacturing facility previously shipped wastes for disposal offsite as non-hazardous wastes which may have contained fluoride levels that are considered to constitute hazardous waste under California regulations. The Company has taken steps to ensure compliance with the applicable waste disposal regulations in this regard. The Company has received a notice of minor administrative violation from one of the local districts requiring updated permit documentation without the assessment of any penalty. The Company has not as yet been contacted by all applicable regulatory authorities, including the DTSC, in respect of this matter and it is too early to assess what, if any, penalties or other actions may be taken in the future in respect of the matter.

In December 2010, the owner by foreclosure of a property in El Segundo, California formerly owned and leased by the Company notified the Company of its claim that the Company is a potentially responsible party for the remediation of hazardous materials allegedly discovered by that owner at the property.  The Company had also been contacted by the DTSC in connection with that 2010 notice.  Separately, in July 2012, the Company received notice from a subsequent owner of that property seeking reimbursement of investigation costs and increased construction costs allegedly resulting from the presence of hazardous materials at the property.  The Company intends to vigorously defend against all of the claims asserted by the various parties in respect of the property.

During negotiations for the Company’s April 2007 divestiture of the Company’s Power Control Systems business to Vishay Intertechnology, Inc., certain chemical compounds were discovered in the groundwater underneath one of the Company's former manufacturing plants in Italy, and the Company advised appropriate governmental authorities at about the time of such divestiture. In August 2010, the Company received a letter from the relevant local authority requiring a confirmation of intention to proceed with preparation of a plan of characterization in relation to the site in question. The Company has restated to local authorities its prior position from the period following such divestiture that it had not committed to take further action with respect to the site. In October 2012, local authorities contacted the current site owner suggesting that additional groundwater testing should take place and testing was initiated prior to the close of calendar year 2012. The Company has not been assessed any penalties with respect to the site, and it is too early to assess whether any such penalties will be assessed or other regulatory actions may be taken in the future.

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NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

16. Environmental Matters (Continued)

In November 2007, the Company was named as one of approximately 100 defendants in Angeles Chemical Company, Inc. et al. v. Omega Chemical PRP Group, LLC et al., No. EDCV07-1471 (TJH) (JWJx) (C.D. Cal.) (the "Angeles Case"). Angeles Chemical Company, Inc. and related entities ("Plaintiffs") own or operate a facility (the "Angeles Facility") which is located approximately 1.5 miles down gradient of the Omega Chemical Superfund Site (the "Omega Site") in Whittier, California. Numerous parties, including the Company, allegedly disposed of wastes at the Omega Site. Plaintiffs claim that contaminants from the Omega Site migrated in groundwater from the Omega Site to the Angeles Facility, thereby causing damage to the Angeles Facility. In addition, they claim that the United States Environmental Protection Agency ("EPA") considers them to be responsible for the groundwater plume near the Angeles Facility, which Plaintiffs contend was caused by disposal activities at the Omega Site. Plaintiffs filed claims based on the Comprehensive Environmental Response, Compensation and Liability Act ("CERCLA"), nuisance and trespass, and also seek declaratory relief. Plaintiffs seek to require the defendants to investigate and clean-up the contamination and to recover damages. The case has been stayed by the court pending the Environmental Protection Agency's completion of its remedial investigation. The Company previously entered into a settlement with other parties associated with the Omega Site pursuant to which the Company paid those entities money in exchange for an agreement to defend and indemnify the Company with regard to certain environmental claims (the "Omega Indemnification"). In that agreement, it was estimated that the Company's volumetric share of wastes sent to the Omega Site was in the range of 0.08 percent. The Company believes that much, if not all, of the risks associated with the Angeles Case should be covered by the Omega Indemnification. In addition, the Company has tendered the complaint to several of its insurance carriers, one of which has agreed to defend under a reservation of rights. Therefore, the Company does not expect its out-of-pocket defense costs to be significant. In addition, in light of the Omega Indemnification, the potential for insurance coverage and the fact that its volumetric share of Omega Site wastes was less than 0.1 percent, the Company does not believe that an adverse judgment against the Company would be material.

International Rectifier Corporation ("IR") and Rachelle Laboratories, Inc. ("Rachelle"), a subsidiary of the Company that discontinued operations in 1986, were each named a potentially responsible party ("PRP") in connection with the investigation by the EPA of the disposal of allegedly hazardous substances at a major superfund site in Monterey Park, California ("OII Site"). Certain PRPs who settled certain claims with the EPA under consent decrees filed suit in Federal Court in May 1992 against a number of other PRPs, including IR, for cost recovery and contribution under the provisions of the CERCLA. The Company has settled all outstanding claims that have arisen against IR relating to the OII Site. No claims against Rachelle have been settled. The Company has taken the position that none of the wastes generated by Rachelle were hazardous. Counsel for Rachelle received a letter dated August 2001 from the U.S. Department of Justice, directed to all or substantially all PRPs for the OII Site, offering to settle claims against such parties for all work performed through and including the final remedy for the OII Site. The offer required a payment from Rachelle in the amount of approximately $9.3 million in order to take advantage of the settlement. Rachelle did not accept the offer.

It remains the position of Rachelle that its wastes were not hazardous. In addition, Rachelle operated as an independent corporation and the Company did not believe that a complaining party would be successful in reaching the assets of IR even if it could prevail on a claim against Rachelle. Because Rachelle has not been sued, none of the Company’s insurers has accepted liability, although at least one of the Company’s insurers previously reimbursed IR for defense costs for the lawsuit filed against IR.

The Company received a letter in June 2001 from a law firm representing UDT Sensors, Inc. ("UDT") relating to environmental contamination (chlorinated solvents such as trichlorethene) purportedly found in UDT's properties in Hawthorne, California. The letter alleges that the Company operated a manufacturing business at that location in the 1970's and/or 1980's and that it may have liability in connection with the claimed contamination. The Company has made no accrual for any potential losses since there has been no assertion of specific facts on which to form the basis for determination of liability.

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NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

17. Litigation

Angeles. v. Omega.  See Note 16, "Environmental Matters."

In addition to the above, the Company is involved in certain legal matters that arise in the ordinary course of business. The Company intends to pursue its rights and defend against any claims brought by third parties vigorously. However, because of the nature and inherent uncertainties of litigation, should the outcome of these actions be unfavorable, the Company's business, financial condition, results of operations or cash flows could be materially and adversely affected.

18. Stock Repurchase Program

The Company’s stock repurchase program authorizes it to repurchase up to $150.0 million of shares of the Company's outstanding common stock. Stock repurchases under this program may be made in the open market or through privately negotiated transactions. The timing and actual number of shares repurchased depend on market conditions and other factors. The stock repurchase program may be suspended at any time without prior notice. All of the shares repurchased by the Company through the program were purchased in open market transactions. The Company has used and plans to continue to use existing cash to fund the repurchases.

During the six months endedDecember 29, 2013, the Company did not repurchase any shares under the stock repurchase program. To date the Company has purchased approximately 6.2 million shares for approximately $113.2 million under the program. As of December 29, 2013, the Company had not canceled the repurchased shares of common stock, and as such, they are reflected as treasury stock in the December 29, 2013 and June 30, 2013 condensed consolidated balance sheets.

33

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

This Management's Discussion and Analysis of Financial Condition and Results of Operations ("MD&A") should be read in conjunction with our audited historical consolidated financial statements which are included in our Form 10-K, filed with the SEC on August 20, 2013 ("2013 Annual Report").  Except for historic information contained herein, the matters addressed in this MD&A constitute "forward‑looking statements" within the meaning of Section 27A of the Securities Act of 1933, as amended ("Securities Act"), and Section 21E of the Exchange Act, as amended. Forward‑looking statements may be identified by the use of terms such as "anticipate," "believe," "expect," "intend," "project," "will," and similar expressions. Such forward‑looking statements are subject to a variety of risks and uncertainties, including those discussed under the heading "Statement of Caution Under the Private Securities Litigation Reform Act of 1995," in Part II, Item 1A, "Risk Factors" and elsewhere in this Quarterly Report on Form 10-Q, that could cause actual results to differ materially from those anticipated by us.  We undertake no obligation to update these forward‑looking statements to reflect events or circumstances after the date of this Quarterly Report or to reflect actual outcomes.

Introduction

The following discussion and analysis provides information we believe is relevant to an assessment and understanding of our consolidated results of operations and financial condition. This discussion should be read in conjunction with our condensed consolidated financial statements and accompanying notes for the three and six months endedDecember 29, 2013. The discussion includes:

• Overview

• Results of Operations

• Liquidity and Capital Resources

• Critical Accounting Polices and Estimates

Overview

Our revenues were $270.0 million and $223.8 million for the three months ended December 29, 2013 and December 23, 2012, respectively, and $539.7 million and $476.3 million for the six months endedDecember 29, 2013 and December 23, 2012, respectively. For the three and six months endedDecember 29, 2013, the revenue increases of $46.1 million or 20.6 percent, and $63.4 million or 13.3 percent, respectively, were primarily due to increases in customer demand in our PMD, ESP, and AP segments. We currently expect revenues for the third quarter of fiscal year 2014 to be between $265 million and $275 million.

Our gross margin percentage improved by14.4 percentage points to 36.3 percent and by 10.7 percentage points to 35.8 percent for the three and six months endedDecember 29, 2013, compared to the three and six months endedDecember 23, 2012, respectively. The increase in gross margin percentage was mainly a result of an improvement in factory utilization and a decrease in manufacturing costs. We currently expect our gross margin percentage for the third quarter of fiscal year 2014 to be between 35.3 percent and 36.3 percent.

Our SG&A expense decreased by $0.4 million and $3.9 million for the three and six months endedDecember 29, 2013, compared to the three and six months endedDecember 23, 2012, respectively.  The decrease in SG&A expense was primarily due to a decrease in legal services expense and headcount related expenses, partially offset by increased bonus expense and stock compensation expense. We are continuing to identify additional SG&A cost savings in order to maintain our total of such expenses at approximately $45 million per quarter, even as certain costs (such as incentive bonuses and freight costs) scale upward with increasing revenues and operating income.

R&D expense increased by $0.7 million and decreased by $0.6 million for the three and six months endedDecember 29, 2013, compared to the three and six months endedDecember 23, 2012, respectively.  The increase in R&D expense for the three months ended December 29, 2013 compared to the prior year comparable period was primarily due to higher bonus expense and stock compensation expense, partially offset by an asset impairment expense for the three months ended December 23, 2012. The decrease in R&D expense for the six months endedDecember 29, 2013 compared to the prior year comparable period was primarily due to lower material related costs, partially offset by the higher bonus expense and stock compensation expense. We currently expect R&D expenses to be around $33 million for the third quarter of fiscal year 2014 as we continue to make additional investments associated with engineering builds to qualify new products and other advanced technologies.

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During the three and six months endedDecember 29, 2013, we continued to focus on consolidating our internal manufacturing footprint and otherwise reducing costs.  We also continued efforts to increase our manufacturing flexibility by qualifying additional technologies and higher value-added products and programs with our contract wafer fabrication and assembly and test suppliers.  In the short-term, we have targeted using external contractors for around 30 percent of our wafer fabrication needs, and around 75 percent of our packaging needs. In the longer-term, we plan to further expand our use of external contractors for up to 50 percent of our wafer fabrication needs and around 80 percent of our packaging needs. We will continue to monitor the demand environment and we may seek to further adjust our internal manufacturing footprint and take other actions to reflect changes in demand in future periods.

In August 2012, we adopted a restructuring plan to modify our manufacturing strategy and lower our operating expenses to align our cost structure with business conditions. As part of the plan, we closed our El Segundo wafer fabrication facility in March 2013. As an additional part of the plan, we are resizing our Newport, Wales fabrication facility in several phases, and expect to complete the resizing by the first half of calendar year 2015. Further, as part of the plan, we completed the other cost reduction activities initiative in fiscal year 2013 to reduce our manufacturing footprint in our Mexico, California, and Arizona facilities, and to reduce administrative and research and development costs around the world.

In conjunction with our ongoing restructuring plan, we incurred approximately $0.9 million and $2.1 million of equipment relocation and re-qualification costs, $0.1 million and $0.2 million of decommissioning costs, and de minimis and $0.1 million of severance and workforce reduction costs during the three and six months endedDecember 29, 2013, respectively. We anticipate that we will incur restructuring charges during fiscal year 2014 of approximately $4.6 million (See Part I, Item 1, Notes to Consolidated Financial Statements-Note 12, “Asset Impairment, Restructuring and Other Charges”).

Our cash flows from operating activities provided $58.2 million of cash during the six months endedDecember 29, 2013 compared to $48.5 million for the prior year comparable period. Our cash, cash equivalents and investments as of December 29, 2013 totaled $503.5 million (excluding restricted cash of $1.4 million), compared to $454.5 million (excluding restricted cash of $1.3 million) as of June 30, 2013. The increase in our cash, cash equivalents and investments was primarily due to net cash provided by operating activities and proceeds from the exercise of stock options, partially offset by capital related purchases.

Segment Reporting

For the description of our reportable segments, see Note 13, “Segment Information”, to our Consolidated Financial Statements set forth in Part I, Item 1.

Four of our five Customer Segments (as identified below), namely, PMD, ESP, AP and EP, generally share the same manufacturing base and sales, marketing, and distribution channels.  While each segment focuses on different target end markets and applications, there are common performance elements arising from that shared manufacturing base and sales, marketing, and distribution channels.  As a result, while we manage performance of these segments individually, we also analyze performance of these segments together, separately from our other Customer Segment, HiRel.  For ease of reference, we refer to these four segments collectively as our “Commercial Segments.”  What we refer to as our “Customer Segments” include our PMD, ESP, AP, EP and HiRel reporting segments, and excludes the IP segment.

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Results of Operations

Selected Operating Results

The following table sets forth certain operating results for the three and six months endedDecember 29, 2013 and December 23, 2012 as a percentage of revenues (in millions, except percentages):

	Three Months Ended										Six Months Ended
	December 29, 2013					December 23, 2012					December 29, 2013				December 23, 2012
Revenues	$	270.0		100.0	%	$	223.8		100.0	%	$	539.7	100.0	%	$	476.3		100.0	%
Cost of sales	172.0			63.7		174.7			78.1		346.4		64.2		356.7			74.9
Gross profit	98.0			36.3		49.1			21.9		193.3		35.8		119.6			25.1
Selling, general and administrative expense	44.7			16.6		45.1			20.1		88.5		16.4		92.4			19.4
Research and development expense	32.8			12.1		32.1			14.4		65.0		12.0		65.6			13.8
Amortization of acquisition‑related intangible assets	1.6			0.6		1.7			0.8		3.3		0.6		3.4			0.7
Asset impairment, restructuring and other charges	1.0			0.4		4.9			2.2		2.4		0.4		13.9			2.9
Operating income (loss)	17.8			6.6		(34.7		)	(15.5	)	34.2		6.3		(55.6		)	(11.7	)
Other expense, net	1.5			0.6		0.4			0.2		2.3		0.4		1.4			0.3
Interest income, net	0.0			—		0.0			—		0.0		—		0.0			—
Income (loss) before income taxes	16.3			6.0		(35.1		)	(15.7	)	31.9		5.9		(57.0		)	(12.0	)
Provision for income taxes	(1.6		)	(0.6	)	(2.4		)	(1.1	)	5.2		1.0		4.5			0.9
Net income (loss)	$	17.9		6.6	%	$	(32.7	)	(14.6	)%	$	26.6	4.9	%	$	(61.5	)	(12.9	)%

Amounts and percentages in the above table may not total due to rounding.

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Revenues and Gross Margin - Three Months Ended

The following table summarizes revenues and gross margin by reportable segment for the three months ended December 29, 2013 compared to the three months ended December 23, 2012. The amounts in the following table are in thousands:

	Three Months Ended
	December 29, 2013						December 23, 2012						Change
	Revenues		Gross Margin		Gross Margin %		Revenues		Gross Margin		Gross Margin %		Revenues %		Gross Margin ppt
Power Management Devices (PMD)	$	102,878	$	30,905	30.0	%	$	83,273	$	12,084	14.5	%	23.5	%	15.5
Energy Saving Products (ESP)	46,589		14,693		31.5		36,174		5,369		14.8		28.8		16.7
Automotive Products (AP)	36,364		11,354		31.2		28,414		3,164		11.1		28.0		20.1
Enterprise Power (EP)	33,195		14,073		42.4		28,649		7,164		25.0		15.9		17.4
Commercial Segments total	219,026		71,025		32.4		176,510		27,781		15.7		24.1		16.7
HiRel	50,665		26,666		52.6		47,061		21,057		44.7		7.7		7.9
Customer Segments total	269,691		97,691		36.2		223,571		48,838		21.8		20.6		14.4
Intellectual Property (IP)	274		274		100.0		251		251		100.0		9.2		0.0
Consolidated total	$	269,965	$	97,965	36.3	%	$	223,822	$	49,089	21.9	%	20.6	%	14.4

Revenues

Revenues from all our segments for the three months ended December 29, 2013, taken as a whole, increased by $46.1 million, or 20.6 percent compared to the prior year comparable period. Revenues from our Customer Segments taken as a whole, increased by $46.1 million, or 20.6 percent, for the three months ended December 29, 2013 as compared to the prior year comparable period. Revenues for our Commercial Segments, taken as a whole, increased by $42.5 million, or 24.1 percent compared to the prior year comparable period.

For the three months ended December 29, 2013, within our Commercial Segments, revenues for our ESP segment increased by 28.8 percent compared to the prior year comparable period due to increased demand for our consumer and appliance related products, including HVICs, IGBTs and IRAM modules, as well as continued recovery in general market conditions, mainly in Asia. Revenues for our AP segment increased by 28.0 percent compared to the prior year comparable period primarily due to increased demand for MOSFET and intelligent power switch IC products. Revenues for our PMD segment increased by 23.5 percent compared to the prior year comparable period due to an increase in demand for our computing components, industrial and consumer products, and gaming console components, partially offset by price erosion. Revenues for our EP segment increased by 15.9 percent compared to the prior year comparable period due to an increase in demand for digital controllers, gaming console components, and high-end computing products.

For the three months ended December 29, 2013, our HiRel segment revenues increased by 7.7 percent compared to the prior year comparable period, primarily driven by an increase in shipments for integrated power modules, DC-DC converters, and RAD-Hard discrete products.

For the three months ended December 29, 2013, our IP segment revenues increased by 9.2 percent to $0.3 million compared to the prior year comparable period. We expect our IP segment revenues will be approximately $0.2 million per quarter in each of the next several quarters. However, we intend to continue to seek sale and/or licensing opportunities consistent with our business strategy.

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Gross Margin

Our gross margin percentage increased by 14.4 percentage points to 36.3 percent for the three months ended December 29, 2013, compared to 21.9 percent for the prior year comparable period. This increase in our gross margin percentage was primarily the result of an increase of 16.7 percentage points in gross margin for our Commercial Segments taken as a whole, and an increase of 7.9 percentage points in gross margin for our HiRel segment. The increase in gross margin for our Commercial Segments taken as a whole was primarily driven by improved factory utilization and lower manufacturing costs. The increase in gross margin for our HiRel Segment was primarily due to lower manufacturing costs.

Our ESP segment's gross margin increased from 14.8 percent for the three months ended December 23, 2012, to 31.5 percent for the three months ended December 29, 2013, primarily due to improved factory utilization and lower inventory excess and obsolescence expense. Our ESP segment has also been favorably impacted by cost savings associated with the fiscal year 2013 closure of our fabrication facility in El Segundo, California. Our AP segment's gross margin increased from 11.1 percent for the three months ended December 23, 2012, to 31.2 percent for the three months ended December 29, 2013, primarily due to improved factory utilization and improved MOSFET and intelligent power switch IC product mix, partially offset by price erosion. Our PMD segment's gross margin increased from 14.5 percent for the three months ended December 23, 2012, to 30.0 percent for the three months ended December 29, 2013, primarily due to improved factory utilization and lower manufacturing costs, partially offset by price erosion. Our EP segment's gross margin increased from 25.0 percent for the three months ended December 23, 2012, to 42.4 percent for the three months ended December 29, 2013, primarily due to lower manufacturing costs and lower inventory excess and obsolescence expense.

Our HiRel segment’s gross margin increased from 44.7 percent for the three months ended December 23, 2012 to 52.6 percent for the three months ended December 29, 2013, primarily due to lower manufacturing costs.

Our IP segment’s gross margin percentage did not change compared to the prior year comparable period.

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Revenues and Gross Margin - Six Months Ended

The following table summarizes revenues and gross margin by reportable segment for the six months endedDecember 29, 2013 compared to the six months endedDecember 23, 2012. The amounts in the following table are in thousands:

	Six Months Ended
	December 29, 2013						December 23, 2012						Change
	Revenues		Gross Margin		Gross Margin %		Revenues		Gross Margin		Gross Margin %		Revenues %		Gross Margin ppt
Power Management Devices (PMD)	$	204,844	$	62,369	30.4	%	$	174,100	$	30,628	17.6	%	17.7	%	12.8
Energy Saving Products (ESP)	97,086		31,267		32.2		80,629		11,625		14.4		20.4		17.8
Automotive Products (AP)	72,827		23,176		31.8		57,252		6,164		10.8		27.2		21.0
Enterprise Power (EP)	65,444		26,147		40.0		66,458		21,526		32.4		(1.5	)	7.6
Commercial Segments total	440,201		142,959		32.5		378,439		69,943		18.5		16.3		14.0
HiRel	98,998		49,801		50.3		95,477		47,949		50.2		3.7		0.1
Customer Segments total	539,199		192,760		35.7		473,916		117,892		24.9		13.8		10.8
Intellectual Property (IP)	516		516		100.0		2,398		1,738		72.5		(78.5	)	27.5
Consolidated total	$	539,715	$	193,276	35.8	%	$	476,314	$	119,630	25.1	%	13.3	%	10.7

Revenues

Revenues from all our segments for the six months endedDecember 29, 2013, taken as a whole, increased by $63.4 million, or 13.3 percent compared to the prior year comparable period. Revenues from our Customer Segments taken as a whole, increased by $65.3 million, or 13.8 percent, for the six months endedDecember 29, 2013 as compared to the prior year comparable period. Revenues for our Commercial Segments, taken as a whole, increased by $61.8 million, or 16.3 percent compared to the prior year comparable period.

For the six months endedDecember 29, 2013, within our Commercial Segments, revenues for our AP segment increased by 27.2 percent compared to the prior year comparable period, primarily due to increased demand for MOSFET and intelligent power switch IC products. Revenues for our ESP segment increased by 20.4 percent compared to the prior year comparable period due to increased demand for our consumer and appliance related products including HVIC's, IGBT's and IRAM modules, as well as a continued recovery in general market conditions, mainly in Asia, partially offset by product mix, primarily in HVIC products. Revenues for our PMD segment increased 17.7 percent compared to the prior year comparable period due to an increase in demand for our computing components, industrial and consumer products, and gaming console components, partially offset by price erosion. Revenues for our EP segment decreased by 1.5 percent compared to the prior year comparable period due to a decrease in demand for server components, partially offset by increased demand for our digital controller and PowIRstage products.

For the six months endedDecember 29, 2013, our HiRel segment revenues increased by 3.7 percent compared to the prior year comparable period, primarily driven by an increase in shipments for integrated power modules and RAD-Hard discrete products.

For the six months endedDecember 29, 2013, our IP segment revenues decreased by $1.9 million or 78.5 percent, to $0.5 million compared to the prior year comparable period, primarily due to a one-time sale of patents in the prior year comparable period. We expect our IP segment revenues will be approximately $0.2 million per quarter in each of the next several quarters. However, we intend to continue to seek sale and/or licensing opportunities consistent with our business strategy.

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Gross Margin

Our gross margin percentage increased by 10.7 percentage points to 35.8 percent for the six months endedDecember 29, 2013 compared to 25.1 percent for the prior year comparable period. This increase in our gross margin percentage was primarily the result of an increase of 14.0 percentage points in gross margin for our Commercial Segments taken as a whole. The increase in gross margin for our Commercial Segments taken as a whole was primarily driven by improved factory utilization and lower manufacturing costs.

Our ESP segment's gross margin increased from 14.4 percent for the six months endedDecember 23, 2012, to 32.2 percent for the six months endedDecember 29, 2013, primarily due to improved factory utilization and lower inventory excess and obsolescence expense, partially offset by increased sales of lower margin HVIC products. Our ESP segment has also been favorably impacted by cost savings associated with the fiscal year 2013 closure of our fabrication facility in El Segundo, California. Our AP segment's gross margin increased from 10.8 percent for the six months endedDecember 23, 2012, to 31.8 percent for the six months endedDecember 29, 2013, primarily due to improved factory utilization and improved MOSFET and intelligent power switch IC product mix. Our PMD segment's gross margin increased from 17.6 percent for the six months endedDecember 23, 2012, to 30.4 percent for the six months endedDecember 29, 2013, primarily due to improved factory utilization, partially offset by price erosion. Our EP segment's gross margin increased from 32.4 percent for the six months endedDecember 23, 2012, to 40.0 percent for the six months endedDecember 29, 2013, primarily due to lower manufacturing costs and lower inventory excess and obsolescence expense.

Our HiRel segment’s gross margin percentage remained relatively flat for the six months endedDecember 29, 2013 compared to the prior year comparable period.

Our IP segment’s gross margin percentage increased by 27.5 percentage points for the six months endedDecember 29, 2013 compared to the prior year comparable period due to costs associated with a one-time sale of patents in the prior year comparable period.

Selling, General and Administrative Expense

	Selling, General and Administrative Expense
(Dollar amounts in thousands)	December 29, 2013		% of Revenues		December 23, 2012		% of Revenues		Change
Three months ended	$	44,727	16.6	%	$	45,083	20.1	%	(3.5) ppt
Six months ended	$	88,477	16.4	%	$	92,378	19.4	%	(3.0) ppt

Our SG&A expense decreased by $0.4 million and $3.9 million for the three and six months endedDecember 29, 2013, respectively, compared to the prior year comparable periods.  The decrease in SG&A expense was primarily due to a decrease in legal services expense and headcount related expenses, partially offset by increased bonus expense and stock compensation expense.

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Research and Development Expense

	Research and Development Expense
(Dollar amounts in thousands)	December 29, 2013		% of Revenues		December 23, 2012		% of Revenues		Change
Three months ended	$	32,786	12.1	%	$	32,125	14.4	%	(2.3) ppt
Six months ended	$	64,959	12.0	%	$	65,574	13.8	%	(1.8) ppt

R&D expense increased by $0.7 million and decreased by $0.6 million for the three and six months endedDecember 29, 2013, respectively, compared to the prior year comparable periods.  The increase in R&D expense for the three months ended December 29, 2013 compared to the prior year comparable period was primarily due to higher bonus expense and stock compensation expense, partially offset by an asset impairment expense for the three months ended December 23, 2012. The decrease in R&D expense for the six months endedDecember 29, 2013 compared to the prior year comparable period was primarily due to lower material costs, partially offset by higher bonus expense and stock compensation expense.

Amortization of Acquisition-Related Intangible Assets

	Amortization of Acquisition-Related Intangible Assets
(Dollar amounts in thousands)	December 29, 2013		% of Revenues		December 23, 2012		% of Revenues		Change
Three months ended	$	1,630	0.6	%	$	1,680	0.8	%	(0.2) ppt
Six months ended	$	3,260	0.6	%	$	3,360	0.7	%	(0.1) ppt

Amortization of acquisition-related intangible assets decreased by $0.1 million for each of the three and six months endedDecember 29, 2013 compared to the prior year comparable periods. The decrease was the result of the full amortization of a certain intangible asset in the previous fiscal year.

Asset Impairment, Restructuring and Other Charges

Asset impairment, restructuring and other charges reflect the impact of certain cost reduction programs and initiatives implemented by us. These programs and initiatives include the closing of facilities, the termination of employees and other related activities. Asset impairment, restructuring and other charges include program-specific exit costs, severance benefits pursuant to an ongoing benefit arrangement, and special termination benefits. Severance costs unrelated to our restructuring initiatives are recorded as an element of cost of sales, R&D, or SG&A, depending upon the classification and function of the employment position terminated. Restructuring costs are expensed during the period in which all requirements of recognition are met.

During the first quarter of fiscal year 2013, we announced a restructuring plan to modify our manufacturing strategy and lower operating expenses in order to align our cost structure with business conditions. As part of the plan, we are incurring costs recorded in asset impairment, restructuring and other charges related primarily to the following:

• Fiscal Year 2013 El Segundo Fabrication Facility Closure Initiative

• Fiscal Year 2013 Newport Fabrication Facility Resizing Initiative

• Fiscal Year 2013 Other Cost Reduction Activities Initiative (completed in fiscal year 2013)

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The following tables summarize the total asset impairment, restructuring and other charges (recoveries) by initiative for the three and six months endedDecember 29, 2013 and December 23, 2012 (in thousands):

	Three Months Ended
Fiscal Year 2013 Initiatives	December 29, 2013
	El Segundo Fabrication Facility Closure Initiative			Newport Fabrication Facility Resizing Initiative		Other Cost Reduction Activities Initiative		Total
Reported in asset impairment, restructuring and other charges:
Asset impairment	$	—		$	—	$	—	$	—
Severance and workforce reduction costs (recoveries)	(9		)	—		—		(9		)
Decommissioning costs	—			93		—		93
Relocation and re-qualification costs	—			931		—		931
Total asset impairment, restructuring and other charges (recoveries)	$	(9	)	$	1,024	$	—	$	1,015

	Three Months Ended
Fiscal Year 2013 Initiatives	December 23, 2012
	El Segundo Fabrication Facility Closure Initiative		Newport Fabrication Facility Resizing Initiative		Other Cost Reduction Activities Initiative		Total
Reported in asset impairment, restructuring and other charges:
Asset impairment	$	178	$	666	$	1,062	$	1,906
Severance and workforce reduction costs	170		597		1,509		2,276
Decommissioning costs	—		55		—		55
Relocation and re-qualification costs	210		494		—		704
Total asset impairment, restructuring and other charges	$	558	$	1,812	$	2,571	$	4,941

	Six Months Ended
	December 29, 2013
	El Segundo Fabrication Facility Closure Initiative			Newport Fabrication Facility Resizing Initiative		Other Cost Reduction Activities Initiative		Total
Reported in asset impairment, restructuring and other charges:
Asset impairment	$	—		$	—	$	—	$	—
Severance and workforce reduction costs (recoveries)	(22		)	141		—		119
Decommissioning costs	—			177		—		177
Relocation and re-qualification costs	4			2,117		—		2,121
Total asset impairment, restructuring and other charges (recoveries)	$	(18	)	$	2,435	$	—	$	2,417

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	Six Months Ended
	December 23, 2012
	El Segundo Fabrication Facility Closure Initiative		Newport Fabrication Facility Resizing Initiative		Other Cost Reduction Activities Initiative		Total
Reported in asset impairment, restructuring and other charges:
Asset impairment	$	178	$	666	$	1,062	$	1,906
Severance and workforce reduction costs	5,857		597		4,788		11,242
Decommissioning costs	—		55		—		55
Relocation and re-qualification costs	210		494		—		704
Total asset impairment, restructuring and other charges	$	6,245	$	1,812	$	5,850	$	13,907

In addition to the amounts in the tables above, other charges related to the restructuring initiatives recorded in cost of sales were $0.7 million and $1.1 million for the three and six months endedDecember 29, 2013, respectively, and $0.4 million and $1.3 million for the three and six months endedDecember 23, 2012, respectively. These charges, which were for accelerated depreciation, are not classifiable as restructuring costs, and were recorded in cost of sales.

The following table summarizes changes in our restructuring related accruals related to our fiscal year 2013 initiatives for the six months endedDecember 29, 2013, which are included in accrued salaries, wages, and commissions on the balance sheet (in thousands):

	El Segundo Fabrication Facility Closure Initiative			Newport Fabrication Facility Resizing Initiative			Other Cost Reduction Activities Initiative		Total
Accrued severance and workforce reduction costs at June 30, 2013	$	197		$	—		$	—	$	197
Accrued (recovered) during the period and charged to asset impairment, restructuring and other charges	(22		)	141			—		119
Costs paid during the period	(31		)	(141		)	—		(172		)
Accrued severance and workforce reduction costs at December 29, 2013	$	144		$	—		$	—	$	144

Fiscal Year 2013 El Segundo Fabrication Facility Closure Initiative

During fiscal year 2013, we adopted a restructuring plan to close our El Segundo wafer fabrication facility. The closure took place in March 2013. During each of the three and six months endedDecember 29, 2013, we incurred de minimis asset impairment, restructuring and other charges (recoveries). We incurred asset impairment, restructuring and other charges of $0.6 million and $6.2 million during the three and six months endedDecember 23, 2012, respectively. In connection with the plan, we estimate total pre-tax costs of $6.5 million. The estimated total costs consist of $5.9 million of severance and workforce reduction costs, $0.4 million of relocation and re-qualification costs, and $0.2 million of asset impairment costs.

In addition to the restructuring charges above, we recorded $0.4 million and $1.3 million of other charges related to the restructuring initiative in cost of sales for the three and six months endedDecember 23, 2012, respectively. These other charges, which were for accelerated depreciation and inventory write-downs, are not classifiable as restructuring costs, and affected the Energy Saving Products reporting segment. We recorded no such charges during each of the three and six months endedDecember 29, 2013.

During each of the three and six months endedDecember 29, 2013, we made de minimis cash payments for this initiative. During the three and six months endedDecember 23, 2012, cash payments for this initiative were $1.6 million and $2.4 million, respectively. Remaining cash payments are estimated to be approximately $0.2 million through June 2015.

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In addition, we estimate that we will make total cash expenditures of $2.5 million for the decommissioning and restoration of the El Segundo wafer fabrication facility. These costs were previously considered as part of the asset impairment of the facility recorded in the fourth quarter of fiscal year 2012, and are not anticipated to result in additional restructuring charges.

We estimate annual cost savings of approximately $10 million for fiscal year 2014 and thereafter compared to our fourth quarter 2012 run rate. These cost savings are the result of reduced manufacturing overhead costs, which will impact cost of sales. We do not anticipate these overhead cost savings to be offset by additional costs incurred in other locations.

Fiscal Year 2013 Newport Fabrication Facility Resizing Initiative

During fiscal year 2013, we adopted a restructuring plan to resize our wafer fabrication facility in Newport, Wales. The resizing of the facility is planned to take place in several phases, and is expected to be completed by the middle of calendar year 2015. We incurred $1.0 million and $2.4 million of asset impairment, restructuring and other charges for the three and six months endedDecember 29, 2013, respectively. We incurred $1.8 million of asset impairment, restructuring and other charges for each of the three and six months endedDecember 23, 2012. In connection with the plan, we estimate total pre-tax costs of approximately $16.5 million. These consist of approximately $0.7 million of asset impairment costs, $3.2 million of severance and workforce reduction costs, $5.7 million of decommissioning costs, and $6.9 million of relocation and re-qualification costs.

In addition to the restructuring charges above, we recorded $0.6 million and $1.1 million of other charges related to the restructuring initiative in cost of sales for the three and six months endedDecember 29, 2013, respectively. These other charges, which were for accelerated depreciation, are not classifiable as restructuring costs. We recorded no such charges during each of the three and six months endedDecember 23, 2012.

Cash payments for this initiative were $1.2 million and $2.4 million for the three and six months endedDecember 29, 2013, respectively, and $1.1 million for each of the three and six months endedDecember 23, 2012. Remaining cash payments are estimated to be approximately $10.0 million for the remainder of the initiative.

After the completion of this initiative, we estimate annual cost savings of approximately $16 million. These cost savings are the result of reduced manufacturing overhead costs, which will impact cost of sales. We do not anticipate these cost savings to be offset by additional costs incurred in other locations.

Fiscal Year 2013 Other Cost Reduction Activities Initiative

During fiscal year 2013, we completed all actions for this initiative. These actions included reducing (i) capacity at manufacturing facilities in Mexico, California, and Arizona, and (ii) administrative and research and development costs around the world. As part of the plan, we incurred approximately $1.5 million and $4.8 million of severance and workforce reduction costs during the three and six months endedDecember 23, 2012, respectively. The severance and workforce reduction costs recorded during the three months ended December 23, 2012 included $0.6 million for research and development functions, $0.5 million for manufacturing functions, and $0.4 million for general and administrative functions. During the six months endedDecember 23, 2012, severance and workforce reduction costs included $2.6 million related to manufacturing functions, and $1.1 million for general and administrative functions, and $1.1 million for research and development functions.

During each of the three and six months endedDecember 23, 2012, we incurred $1.1 million of asset impairment costs for the planned disposition of certain manufacturing equipment related to our manufacturing facility in Mexico. During the three and six months endedDecember 23, 2012, cash payments for this initiative were $1.9 million and $3.8 million, respectively.

We estimate annual cost savings of approximately $18 million for fiscal year 2014 and thereafter compared to our fourth quarter 2012 run rate. These cost savings will result in reduced SG&A and R&D expenses, as well as lower cost of sales. We do not anticipate these cost savings to be offset by additional costs incurred in other locations.

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Other Expense, Net

Other expense, net includes, primarily, gains and losses related to foreign currency fluctuations. Other expense, net, was $1.5 million and $0.4 million for the three months ended December 29, 2013 and December 23, 2012, respectively. Other expense, net for the three months ended December 29, 2013 includes a foreign currency exchange loss of $0.8 million due to fluctuations in foreign currency exchange rates, and an unrealized loss of $0.6 million related to a non-transferable put option on a strategic investment (the "Put Option"). The prior year comparable period included a foreign currency exchange loss of $0.5 million due to fluctuations in foreign currency exchange rates, partially offset by an unrealized gain of $0.1 million on the Put Option.

Other expense, net, was $2.3 million and $1.4 million for the six months endedDecember 29, 2013 and December 23, 2012, respectively. Other expense, net for the six months endedDecember 29, 2013 includes a foreign currency exchange loss of $1.3 million due to fluctuations in foreign currency exchange rates, and an unrealized loss of $1.0 million on the Put Option. The prior year comparable period included a foreign currency exchange loss of $1.5 million due to fluctuations in foreign currency exchange rates, partially offset by an unrealized gain of $0.2 million on the Put Option.

Interest Expense (Income), Net

Interest expense (income), net includes, primarily, realized gains related to the disposal of investments, and interest income from investments. Interest expense (income), net was de minimis for each of the three and six months endedDecember 29, 2013 and December 23, 2012.

Income Taxes

We recorded a tax benefit of $1.6 million, or (10.0) percent of pre-tax income of $16.3 million, for the three months ended December 29, 2013. The main component of the tax benefit was an $8.1 million net reduction in foreign uncertain tax positions, primarily related to: (i) a reduction of taxes of $6.3 million and (ii) related interest and penalties of $1.3 million, both arising from lapses in statutes of limitation in certain foreign jurisdictions. The remaining $0.5 million benefit arose from settlements with certain foreign tax authorities. The benefit was partially offset by: (i) a $5.7 million expense related primarily to foreign income taxes, (ii) a $0.5 million expense related to foreign withholding taxes, and (iii) a $0.4 million expense in other income taxes.

We recorded a tax expense of $5.2 million, or 16.4 percent of pre-tax income of $31.9 million, for the six months endedDecember 29, 2013. The main components of the tax expense were: (i) an $8.8 million expense primarily related to foreign income taxes, (ii) a reduction in the United Kingdom ("U.K.") statutory tax rates, reducing the value of the Company's net deferred tax assets in the U.K. by $4.0 million, (iii) $1.0 million in foreign withholding taxes, and (iv) $0.5 million in settlements with respect to income tax audits in certain tax jurisdictions. These expenses were partially offset by a net reduction in various foreign uncertain tax positions and related interest and penalties, which arose from lapses in statutes of limitation, totaling approximately $8.9 million.

We recorded a tax benefit of $2.4 million, or 6.9 percent against a loss of $35.1 million, for the three months ended December 23, 2012. The main component of the tax benefit was a reduction in foreign uncertain tax positions arising from lapses in statutes of limitation totaling $4.3 million. This benefit was partially offset by an expense related to foreign withholding taxes, foreign income taxes, and the lack of tax benefit from the ordinary loss in the U.S. due to our valuation allowance position.

We recorded a tax expense of $4.5 million, or (8.0) percent against a loss of $57.0 million, for the six months endedDecember 23, 2012. The main components of the tax expense were: (i) a decrease in the U.K. statutory tax rates, which reduced the value of our net deferred tax assets in the U.K. by $3.2 million, (ii) expenses related to foreign income taxes and foreign withholding taxes, and (iii) the lack of tax benefit from the ordinary loss in the U.S. due to our valuation allowance position. These expenses were partially offset by a reduction in uncertain tax positions, and by the benefit of a loss in a foreign jurisdiction.

We operate in multiple foreign jurisdictions with lower statutory tax rates compared to the U.S., and our operations in Singapore generally have the most significant impact on our effective tax rate.  We expect to be subject to an effective tax rate of 17 percent in Singapore for fiscal year 2014.

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Liquidity and Capital Resources

Cash Requirements

Sources and Uses of Cash

We require cash to fund our operating expense and working capital requirements, capital expenditures, strategic growth initiatives, and to repurchase common stock under our ongoing stock repurchase program. Our primary sources for funding these requirements are cash and investments on hand and cash from operating activities. On October 25, 2012, we entered into a $100 million unsecured revolving credit facility as discussed below. To maintain the availability of the facility, we are required to comply with a number of covenants and satisfy a number of conditions, including certain minimum available liquidity requirements. We are currently in compliance with the financial covenants contained in the revolving credit agreement.

Total cash (excluding restricted cash), cash equivalents, and investments at December 29, 2013 and June 30, 2013 were as follows (in thousands):

	December 29, 2013		June 30, 2013
Cash and cash equivalents	$	498,487	$	443,490
Investments	5,001		11,056
Total cash, cash equivalents, and investments	$	503,488	$	454,546

At December 29, 2013, we had $503.5 million of cash (excluding $1.4 million of restricted cash), cash equivalents and short-term investments, consisting of available-for-sale fixed income and investment‑grade securities, an increase of $48.9 million from June 30, 2013. The increase in our cash, cash equivalents and investments was primarily due to net cash provided by operating activities and proceeds from the exercise of stock options, partially offset by capital related purchases.

At December 29, 2013, we had an increase of $55.0 million in cash and cash equivalents, and a decrease in investments of $6.1 million, compared to the respective balances as of June 30, 2013.  We reduced our investments and increased our cash and cash equivalents in the short-term in an effort to align our investment strategy to preserve principal and maintain liquidity while achieving market returns on the investment portfolio.

We believe that our existing cash and cash equivalents will be sufficient to meet operating requirements and satisfy our existing balance sheet liabilities and other cash obligations for at least the next twelve months. Our cash and cash equivalents are available to fund working capital needs, strategic growth initiatives, if any, repurchase of stock for our ongoing common stock repurchase program and capital expenditures. During the first six months of fiscal year 2014, we took actions to meet our longer term revenue growth goals, including ongoing capital investments in our existing manufacturing operations and in the construction of a new facility in Singapore. We plan to continue expanding our manufacturing capabilities for key technologies in anticipation of meeting our long term strategic goals.

Our stock repurchase program authorizes us to repurchase up to $150.0 million of shares of our outstanding common stock. Stock repurchases under this program may be made in the open market or through privately negotiated transactions. The timing and actual number of shares repurchased depend on market conditions and other factors. The stock repurchase program may be suspended at any time without prior notice. We have used and plan to continue to use existing cash to fund the repurchases. All of the shares repurchased through the program were purchased in open market transactions.

During the three months ended December 29, 2013, we did not repurchase any shares under the stock repurchase program. To date, we have purchased approximately 6.2 million shares for approximately $113.2 million under the program. As of December 29, 2013, we have not canceled the repurchased shares of common stock, and as such, they are reflected as treasury stock in the December 29, 2013 and June 30, 2013 condensed consolidated balance sheets.

Our current outlook for fiscal year 2014 is that our cash flow from operating activities will be positive. We estimate that cash capital equipment expenditures for the fiscal year 2014 will be about $55 million as we invest in new manufacturing process technologies, and our new facility in Singapore.

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Cash Flow

Our cash flows were as follows (in thousands):

	Six Months Ended
	December 29, 2013			December 23, 2012
Cash flows provided by operating activities	$	58,223		$	48,464
Cash flows provided by (used in) investing activities	(16,559		)	15,717
Cash flows provided by (used in) financing activities	9,737			(5,248		)
Effect of exchange rates on cash and cash equivalents	3,596			2,300
Net increase in cash and cash equivalents	$	54,997		$	61,233

Non-cash adjustments to cash flows provided by operating activities during the six months endedDecember 29, 2013 and December 23, 2012, respectively, included $43.5 million and $45.8 million of depreciation and amortization, $13.5 million and $11.1 million of stock compensation expense, and a $6.9 million and $5.6 million increase in our deferred income tax position. Changes in operating assets and liabilities decreased cash provided by operating activities by $38.1 million for the six months endedDecember 29, 2013, primarily attributed to increases in accounts receivable and inventories, partially offset by an increase in accrued income taxes. Changes in operating assets and liabilities increased cash provided by operating activities by $25.6 million for the six months endedDecember 23, 2012, primarily attributed to decreases in accounts receivable and inventories, partially offset by an increase in other accrued expenses.

Cash used in investing activities of $16.6 million during the six months endedDecember 29, 2013 was primarily the result of capital expenditures of $22.6 million, partially offset by the sales and maturities of investments of $6.0 million. Cash provided by investing activities during the six months endedDecember 23, 2012 was primarily the result of sales and maturities of investments of $73.6 million, partially offset by capital expenditures of $48.0 million.

Cash provided by financing activities of $9.7 million during the six months endedDecember 29, 2013 was primarily the result of proceeds from stock option exercises, partially offset by cash used to fund net settlement of restricted stock units for tax withholdings. Cash used in financing activities during the six months endedDecember 23, 2012 was primarily the result of treasury stock purchases.

Revolving Credit Facility

On October 25, 2012, we entered into a Credit Agreement (the “Credit Agreement”), as borrower, with Wells Fargo Bank, National Association, as Administrative Agent (“Agent”), and certain lenders (the “Lenders”), pursuant to which we established a senior unsecured revolving credit facility (the “Facility”) in an aggregate principal amount of $100 million with sublimits for swingline loans (of $25 million) and the issuance of letters of credit (of $10 million). The Credit Facility matures on October 25, 2016.

The proceeds of the Credit Facility may be used to finance certain capital expenditures and acquisitions permitted thereunder, to provide for the working capital and general corporate needs as well as to pay fees, commissions and expenses associated with the Credit Facility.

Outstanding amounts under the Credit Facility will initially bear interest at a rate per annum equal to, at our option, either (a) LIBOR plus 1.25 percent or (b) a “Base Rate” (equal to the greatest of (i) the Agent’s prime rate; (ii) the federal funds rate plus 0.50 percent; and (iii) LIBOR plus 1.00 percent) plus 0.25 percent. From and after our fiscal quarter ending on March 24, 2013, the margin over LIBOR and the Base Rate may be adjusted periodically based on our ratio of total funded debt to consolidated EBITDA as defined under the Credit Facility, with 1.75 percent per annum being the maximum LIBOR margin and 0.75 percent per annum being the maximum Base Rate margin established by such adjustment mechanism. We are required to pay a commitment fee on the unused commitments under the Credit Facility at an initial rate equal to 0.25 percent per annum (subject to a similar leverage-based adjustment up to a maximum of 0.35 percent per annum).

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The terms of the Credit Agreement require us (subject to certain limited exceptions and conditions) to comply with the following financial tests: (i) maintenance of maximum total funded debt to consolidated EBITDA of not more than 2.50 to 1.0; (ii) maintenance of minimum consolidated EBITDA to consolidated interest charges of 4.00 to 1.0; and (iii) maintenance of minimum available liquidity of at least $200 million. Liquidity is generally defined as cash and cash equivalents, short-term investments and long-term investments (not to exceed $50 million), and the undrawn amount of the Credit Facility. As a result of the requirement to comply with the financial tests, we will not be able to access the Credit Facility during periods where the financial tests, including the minimum liquidity threshold, are not met, thereby limiting our ability to draw on the line during a period of illiquidity or at any other time where the minimum liquidity threshold is not met.

In addition, the Credit Agreement contains certain covenants that, among other things, restrict additional indebtedness, liens and encumbrances, investments, acquisitions, loans and advances, mergers, consolidations and asset dispositions, dividends and other restricted payments, transactions with affiliates, capital expenditures (limited to between $175 million and $200 million per annum during the term of the Credit Facility) and other matters customarily restricted in such agreements, in each case, subject to certain exceptions.

The Credit Agreement also contains customary provisions related to: (i) events of default, including payment defaults, (ii) breaches of representations and warranties, (iii) covenant defaults, (iv) cross-defaults to certain material indebtedness in excess of specified amounts, (v) certain events of bankruptcy and insolvency, (vi) judgments in excess of specified amounts, (vii) certain impairments to the guarantees or collateral documents, and (viii) change in control defaults.

As of December 29, 2013, we were in compliance with the financial covenants, and there were no amounts outstanding under the Credit Facility.

Working Capital

Our working capital is dependent on demand for our products and our ability to manage accounts receivable and inventories. Other factors which may result in changes to our working capital levels are our restructuring initiatives, investment impairments and share repurchases.

The changes in working capital for the six months endedDecember 29, 2013 were as follows (in thousands):

	December 29, 2013		June 30, 2013		Change
Current Assets
Cash and cash equivalents	$	498,487	$	443,490	$	54,997
Restricted cash	635		611		24
Short-term investments	5,001		11,056		(6,055		)
Trade accounts receivable, net of allowances	156,730		137,762		18,968
Inventories	247,740		232,315		15,425
Current deferred tax assets	4,946		4,948		(2		)
Prepaid expenses and other current assets	34,222		33,002		1,220
Total current assets	947,761		863,184		84,577
Current Liabilities
Accounts payable	86,403		89,312		(2,909		)
Accrued income taxes	4,361		949		3,412
Accrued salaries, wages and commissions	37,764		39,719		(1,955		)
Other accrued expenses	80,063		78,414		1,649
Total current liabilities	208,591		208,394		197
Net working capital	$	739,170	$	654,790	$	84,380

For the reason for changes in cash and investments, please see the above discussions under sources and uses of cash and cash flows.

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The increase in net trade accounts receivable of $19.0 million from June 30, 2013 to December 29, 2013 reflects the increase in our quarterly revenues of approximately 5.2 percent on a normalized 13 week quarter basis from the three months ended June 30, 2013 while our days-sales-outstanding increased by approximately 4 days.

Inventories increased $15.4 million during the six months endedDecember 29, 2013 compared to June 30, 2013, primarily due to planned inventory builds to support targeted customer service levels, and included a $16.8 million increase in work-in-process and a $0.8 million increase in finished goods, partially offset by a $2.1 million decrease in raw materials. Due to this increase in inventory, inventory weeks increased to approximately 19 weeks as of December 29, 2013, from 17 weeks as of June 30, 2013.

Contractual Obligations

There has been no material change to our contractual obligations as disclosed in our 2013 Annual Report.

Off-Balance Sheet Arrangements

In the normal course of business, we enter into various operating leases for buildings and equipment. In addition, we provide standby letters of credit or other guarantees as required for certain transactions. From time to time, we provide cash collateral in support of outstanding letters of credit.

Apart from the operating lease obligations and purchase commitments discussed in our 2013 Annual Report, we do not have any off-balance sheet arrangements as of December 29, 2013.

Recent Accounting Standards

Information set forth under Note 1, “Business, Basis of Presentation and Summary of Significant Accounting Policies—Recent Accounting Standards” is incorporated herein by reference.

Critical Accounting Policies and Estimates

The discussion and analysis of our financial condition and results of operations are based upon our consolidated financial statements, which have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). The preparation of consolidated financial statements in accordance with GAAP requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, as well as the disclosure of contingent assets and liabilities. The U.S. Securities and Exchange Commission has defined critical accounting policies as those that “are both most important to the portrayal of the company’s financial condition and results, and they require management’s most difficult, subjective or complex judgments, often as a result of the need to make estimates about the effect of matters that are inherently uncertain.” As such, we have identified the following policies as our critical accounting policies: Revenue recognition and allowances for sales returns and price concessions, fair value of financial instruments, impairment of long-lived assets, intangibles and goodwill, other-than-temporary impairments, inventories, income taxes and loss contingencies.

The judgments and estimates we make in applying the accounting principles generally accepted in the U.S. affect the amounts of assets and liabilities reported, disclosures, and reported amounts of revenues and expenses. As such, we evaluate the judgments and estimates underlying all of our accounting policies, including those noted above, on an ongoing basis. We have based our estimates on the latest available historical information as well as known or foreseen trends; however, we cannot guarantee that we will continue to experience the same patterns in the future. If the historical data and assumptions we used to develop our estimates do not properly reflect future activity, our net sales, gross profit, net income and earnings per share could be materially and adversely impacted.

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ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Interest Rates

Our exposure to interest rate risk is primarily through our investment portfolio as we currently do not have outstanding long-term debt.  The objectives of our investments in debt securities are to preserve principal and maintain liquidity, while achieving market returns on the investment portfolio.  To achieve these objectives, the returns on our investments in short-term fixed-rate debt securities will be generally compared to LIBOR or to yields on money market instruments, such as industrial commercial paper and Treasury Bills.  Investments in longer term fixed-rate debt securities will be generally compared to yields on comparable maturity Government or high grade corporate instruments with an equivalent credit rating.  Based on our investment portfolio and interest rates at December 29, 2013, a 100 basis point increase or decrease in interest rates would result in a de minimis annualized change in the fair value of the investment portfolio.  Changes in interest rates may affect the fair value of the investment portfolio; however, unrealized gains or losses are not recognized in net income unless the investments are sold or losses are considered to be other-than-temporary.

Foreign Currency Exchange Rates

A significant amount of our revenues, expense, and capital purchasing transactions are conducted on a global basis in several foreign currencies. To protect against exposure to currency exchange rate fluctuations, we have established a balance sheet transaction risk hedging program. Through this hedging program, we seek to reduce, but do not eliminate, the impact of currency exchange rate movements.

We generally hedge the risks of foreign currency-denominated repetitive working capital positions with offsetting foreign currency-denominated exchange transactions, using currency forward contracts or spot transactions.  Transaction gains and losses on these foreign currency-denominated working capital positions are generally offset by corresponding gains and losses on the related hedging instruments, usually resulting in reduced net exposure. At various times, we have currency exposure related to the British Pound Sterling, the Euro, and the Japanese Yen.  For example, in the United Kingdom, we have a sales office and a semiconductor wafer fabrication facility with revenues in U.S. Dollars and Euros, and expenses in British Pounds Sterling and U.S. Dollars. The Company does not hedge its revenues and expenses against changes in foreign currency exchange rates, as it does notperceive the net risk of changes to translated revenues and expenses from changes in exchange rates as significant enough at this time to justify hedging to mitigate this risk.

For our balance sheet transaction hedging program, we had approximately $24.1 million in notional amounts of forward contracts not designated as accounting hedges outstanding as of December 29, 2013.  Net realized and unrealized foreign‑currency gains (losses) related to foreign currency forward contracts recognized in earnings as a component of other expense, were $(0.1) million and $0.9 million for the three and six months endedDecember 29, 2013, and $0.3 million and $(2.1) million for the three and six months endedDecember 23, 2012, respectively.

In the normal course of business, we also face risks that are either non-financial or non-quantifiable. Such risks principally include country risk, credit risk and legal risk and are not discussed or quantified in the preceding analysis.

Market Value Risk

We carry certain assets at fair value. Generally, for assets that are reported at fair value, we use quoted market prices or valuation models that utilize market data inputs to estimate fair value. In certain cases quoted market prices or market data inputs may not be readily available or availability could be diminished due to market conditions. In these cases, our estimate of fair value is based on best available information or other estimates determined by management.

At December 29, 2013, we had $503.5 million of total cash (excluding 1.4 million of restricted cash), cash equivalents and short-term investments, consisting of available-for-sale fixed income securities. We manage our total portfolio to encompass a diversified pool of investment‑grade securities. The average credit rating of our investment portfolio is AAA/Aaa. Our investment policy is to manage our total cash and investment balances to preserve principal and maintain liquidity, while achieving market returns on the investment portfolio. To the extent that certain investments in our portfolio of investments continue to have strategic value, we generally do not attempt to reduce or eliminate our market exposure. For securities that we no longer consider strategic, we evaluate legal, market, and economic factors in our decision on the timing of disposal. We may or may not enter into transactions to reduce or eliminate the market risks of our investments.

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ITEM 4. CONTROLS AND PROCEDURES

This Report includes the certifications of our Chief Executive Officer ("CEO") and Chief Financial Officer ("CFO") required by Rule 13a-14 of the Securities Exchange Act of 1934, as amended (the "Exchange Act").  See Exhibits 31.1 and 31.2.  This Item 4 includes information concerning the controls and control evaluations referred to in those certifications.

Evaluation of Disclosure Controls and Procedures

Disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) are designed to ensure that information required to be disclosed in reports we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the rules and forms of the SEC and that such information is accumulated and communicated to our management, including the CEO and CFO, to allow timely decisions regarding required disclosures.

Our management, under the supervision and with the participation of our CEO and CFO, evaluated the effectiveness of the design and operation of our disclosure controls and procedures as of December 29, 2013.  Based upon this evaluation, our CEO and CFO concluded that, as of December 29, 2013, our disclosure controls and procedures were effective.

Changes in Internal Control over Financial Reporting

"Internal control over financial reporting" is a process designed by, or under the supervision of, our CEO and CFO, and effected by our board of directors, management, and other personnel, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of consolidated financial statements for external purposes in accordance with generally accepted accounting principles and includes those policies and procedures that:

(i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of assets;

(ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that our receipts and expenditures are being made only in accordance with authorizations of management and our directors; and

(iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of our assets that could have a material effect on the financial statements.

During the fiscal quarter ended December 29, 2013, there were no changes in internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Inherent Limitations Over Internal Controls

We do not expect that our disclosure controls and procedures or our internal control over financial reporting will prevent or detect all errors.  A 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.  Further, the design of a control system must acknowledge the fact that there are resource constraints and the benefits of controls must be considered relative to their costs.  These inherent limitations include the realities that judgments in decision making can be faulty and that breakdowns can occur because of simple error or mistake.  Controls can also be circumvented by the deliberate acts of one or more persons.  The design of any system of controls is based, in part, upon certain assumptions about the likelihood of future events and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions.  Over time, controls may become inadequate because of changes in conditions or deterioration in the degree of compliance with associated policies or procedures.  Because of the inherent limitations in a cost-effective control system, misstatements due to error may occur and not be detected.

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PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

Our disclosures regarding the matters set forth in Note 16, "Environmental Matters," and Note 17, "Litigation," to our Notes to the Unaudited Condensed Consolidated Financial Statements set forth in Part I, Item 1, herein, are incorporated herein by reference.

ITEM 1A. RISK FACTORS

Statement of Caution Under the Private Securities Litigation Reform Act of 1995

This Quarterly Report on Form 10-Q includes some statements and other information that are not historical facts but are "forward-looking statements" as that term is defined in the Private Securities Litigation Reform Act of 1995. The materials presented can be identified by the use of forward‑looking terminology such as "anticipate," "believe," "estimate," "expect," "may," "should," "view," or "will" or the negative or other variations thereof. We caution that such statements are subject to a number of uncertainties, and actual results may differ materially. Factors that could affect our actual results include those set forth under "Item 1A. Risk Factors" in our 2013 Annual Report on Form 10-K, as supplemented by other uncertainties disclosed in our reports filed from time to time with the SEC (all of the foregoing of which is incorporated by reference).

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

(a) None

(b) None

(c) Purchase of Equity Securities

The following provides information on a fiscal monthly basis for the quarter ended December 29, 2013, with respect to the Company’s purchases of equity securities under the authorized stock repurchase program:

Period	Total Number of Shares Purchased	Average Price Paid per Share	Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs (1)	Maximum Number (or Approximate Dollar Value) of Shares that May Yet be Purchased Under the Plans or Programs
September 30, 2013 to October 27, 2013	—	—	—	$	36,824,598
October 28, 2013 to November 24, 2013	—	—	—	$	36,824,598
November 25, 2013 to December 29, 2013	—	—	—	$	36,824,598

(1) The Company's stock repurchase program authorizes it to repurchase up to $150.0 million of common stock

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ITEM 5. OTHER INFORMATION

None

ITEM 6. EXHIBITS

Index:

3.1	Certificate of Incorporation of the Company, as amended through July 19, 2004 (incorporated by reference to Exhibit 3.1 to the Company's Registration Statement on Form S-8 filed with the Securities and Exchange Commission on July 19, 2004, Registration No. 333-117489
3.2	Amendment to Certificate of Incorporation, dated November 13, 2009 (incorporated by reference to Exhibit 3.2 of Quarterly Report on Form 10-Q for the quarterly period ended December 27, 2009, filed with the Securities and Exchange Commission on February 3, 2010)
3.3	Bylaws as Amended and Restated (incorporated by reference to Exhibit 3.1 of Current Report Form 8-K filed with the Securities and Exchange Commission on August 19, 2013)
31.1	Certification Pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, Adopted Pursuant to Section 302 of the Sarbanes‑Oxley Act of 2002 (1)
31.2	Certification Pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, Adopted Pursuant to Section 302 of the Sarbanes‑Oxley Act of 2002 (1)
32.1	Certification Pursuant to 18 U.S.C. 1350, Adopted Pursuant to Section 906 of the Sarbanes‑Oxley Act of 2002 (1)
32.2	Certification Pursuant to 18 U.S.C. 1350, Adopted Pursuant to Section 906 of the Sarbanes‑Oxley Act of 2002 (1)
101.INS	XBRL Instance
101.SCH	XBRL Taxonomy Extension Schema
101.CAL	XBRL Extension Calculation
101.LAB	XBRL Extension Labels
101.PRE	XBRL Taxonomy Extension Presentation
101.DEF	XBRL Taxonomy Extension Definition

(1) Denotes document submitted herewith

(2) Denotes management contract or compensatory plan or arrangement

(3) Furnished, not filed

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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.

	INTERNATIONAL RECTIFIER CORPORATION
Date: January 29, 2014	/s/ ILAN DASKAL
	Ilan Daskal Chief Financial Officer (Principal Financial and  Accounting Officer)

54

EX-31.1

EXHIBIT 31.1

CERTIFICATION

I, Oleg Khaykin, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of International Rectifier Corporation;

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 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:	January 29, 2014	/s/ OLEG KHAYKIN
		Oleg Khaykin Chief Executive Officer (Principal Executive Officer)

EX-31.2

EXHIBIT 31.2

CERTIFICATION

I, Ilan Daskal, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of International Rectifier Corporation;

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 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:	January 29, 2014	/s/ ILAN DASKAL
		Ilan Daskal Chief Financial Officer (Principal Financial and Accounting Officer)

EX-32.1

EXHIBIT 32.1

CERTIFICATION

PURSUANT TO

18 U.S.C. SECTION 1350

As Adopted Pursuant to Section 906 of the Sarbanes‑Oxley Act of 2002

The undersigned, Oleg Khaykin, the Chief Executive Officer of International Rectifier Corporation (the “Company”), pursuant to 18 U.S.C. §1350, hereby certifies that:

(i) the Quarterly Report on Form 10-Q of the Company for the fiscal quarter ended December 29, 2013 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

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

Date: January 29, 2014

/s/ OLEG KHAYKIN

Oleg Khaykin

Chief Executive Officer
(Principal Executive Officer)

EX-32.2

EXHIBIT 32.2

CERTIFICATION

PURSUANT TO

18 U.S.C. SECTION 1350

As Adopted Pursuant to Section 906 of the Sarbanes‑Oxley Act of 2002

The undersigned, Ilan Daskal, the Chief Financial Officer of International Rectifier Corporation (the “Company”), pursuant to 18 U.S.C. §1350, hereby certifies that:

(i) the Quarterly Report on Form 10-Q of the Company for the fiscal quarter ended December 29, 2013 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

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

Date: January 29, 2014

/s/ ILAN DASKAL

Ilan Daskal

Chief Financial Officer
(Principal Financial and
Accounting Officer)

XML

Business, Basis of Presentation and Summary of Significant Accounting Policies (Details) (USD $)	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended										3 Months Ended		6 Months Ended
	Dec. 29, 2013	Dec. 23, 2012	Dec. 29, 2013	Dec. 23, 2012	Dec. 29, 2013 Derivatives [Member]	Dec. 23, 2012 Derivatives [Member]	Dec. 29, 2013 Derivatives [Member]	Dec. 23, 2012 Derivatives [Member]	Dec. 29, 2013 Measured at Fair Value on a Recurring Basis [Member]	Jun. 30, 2013 Measured at Fair Value on a Recurring Basis [Member]	Dec. 29, 2013 Measured at Fair Value on a Recurring Basis [Member] Level 1 [Member]	Jun. 30, 2013 Measured at Fair Value on a Recurring Basis [Member] Level 1 [Member]	Dec. 29, 2013 Measured at Fair Value on a Recurring Basis [Member] Level 2 [Member]	Jun. 30, 2013 Measured at Fair Value on a Recurring Basis [Member] Level 2 [Member]	Dec. 29, 2013 Measured at Fair Value on a Recurring Basis [Member] Level 3 [Member]	Jun. 30, 2013 Measured at Fair Value on a Recurring Basis [Member] Level 3 [Member]	Dec. 29, 2013 Newport and Mexico manufacturing facilities [Member] Fair Value, Measurements, Nonrecurring [Member] Level 3 [Member]	Dec. 23, 2012 Newport and Mexico manufacturing facilities [Member] Fair Value, Measurements, Nonrecurring [Member] Level 3 [Member]	Dec. 29, 2013 Newport and Mexico manufacturing facilities [Member] Fair Value, Measurements, Nonrecurring [Member] Level 3 [Member]	Dec. 23, 2012 Newport and Mexico manufacturing facilities [Member] Fair Value, Measurements, Nonrecurring [Member] Level 3 [Member]
Fiscal year and Quarter [Abstract]
Minimum number of weeks in a fiscal year			52
Maximum number of weeks in a fiscal year			53
Number of weeks in fiscal period	13	13	26	26
Actual number of weeks in fiscal year			52
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying value of equipment prior to impairment																		$ 8,700,000		$ 8,700,000
Assets and Liabilities [Abstract]
Short-term investments									5,001,000	11,056,000	5,001,000	6,004,000	0	5,052,000	0	0
Prepaid expenses and other current assets										19,000		0		19,000		0
Other assets									38,656,000	29,725,000	36,726,000	26,837,000	0	0	1,930,000	2,888,000
Other accrued expenses									(10,000)		0		(10,000)		0
Other long-term liabilities									(9,370,000)	(8,326,000)	(9,370,000)	(8,326,000)	0	0	0	0
Total									34,277,000	32,474,000	32,357,000	24,515,000	(10,000)	5,071,000	1,930,000	2,888,000
Property, Plant, and Equipment, Fair Value Disclosure																		4,000,000		4,000,000
Tangible Asset Impairment Charges																	0	4,700,000	0	4,700,000
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance					2,563,000	2,920,000	2,888,000	2,834,000
Total gains (losses) (realized or unrealized) [Abstract]
Included in other expense, net					(633,000)	116,000	(958,000)	202,000
Ending balance					$ 1,930,000	$ 3,036,000	$ 1,930,000	$ 3,036,000

XML

Stock-Based Compensation (Details) (USD $)	3 Months Ended		6 Months Ended
	Dec. 29, 2013	Dec. 23, 2012	Dec. 29, 2013	Dec. 23, 2012	Jun. 30, 2013
Stock option activity, additional disclosures [Abstract]
Proceeds received from the exercise of stock options			$ 10,900,000	$ 1,000,000
Additional information relating to stock-based compensation plans [Abstract]
Outstanding options exercisable (in shares)	377,000		377,000		1,039,000
Options and RSUs available for grant (in shares)	6,079,000		6,079,000		6,040,000
Total reserved common stock shares for stock option plans (in shares)	10,048,000		10,048,000		10,923,000
Compensation cost not yet recognized [Abstract]
Total compensation cost not yet recognized	39,800,000		39,800,000
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	6,627,000	5,378,000	13,489,000	11,117,000
Cost of Sales [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	1,362,000	1,123,000	2,610,000	2,281,000
General and Administrative Expense [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	3,123,000	2,858,000	6,650,000	6,018,000
Research and Development Expense [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	2,142,000	1,397,000	4,229,000	2,818,000
2011 Plan [Member] | Granted to Employees [Member]
Stock option shares activity [Roll Forward]
Granted (in shares)			4,000
Restricted Stock Unit Activity [Roll Forward]
Granted (in shares)			25,050
2011 Plan [Member] | Granted to Members of the Board of Directors [Member]
Restricted Stock Unit Activity [Roll Forward]
Granted (in shares)			43,704
Stock Options [Member]
Stock option shares activity [Roll Forward]
Outstanding, beginning of period (in shares)			1,187,000
Granted (in shares)			4,000
Exercised (in shares)			(673,000)
Expired or forfeited (in shares)			(5,000)
Outstanding, end of period (in shares)	513,000		513,000
Stock option activity, additional disclosures [Abstract]
Weighted average option exercise price, outstanding, beginning of period (in dollars per share)			$ 17.08
Weighted average option exercise price, granted (in dollars per share)			$ 24.76
Weighted average option exercise price, exercised (in dollars per share)			$ 16.19
Weighted average option exercise price, expired or forfeited (in dollars per share)			$ 16.83
Weighted average option exercise price, outstanding, end of period (in dollars per share)	$ 18.31		$ 18.31
Weighted average grant date fair value, granted (in dollars per share)			$ 6.82
Aggregate intrinsic value, outstanding, beginning of period			4,978,000
Aggregate intrinsic value, exercised			5,330,000
Aggregate intrinsic value, outstanding, end of period	3,919,000		3,919,000
Compensation cost not yet recognized [Abstract]
Total compensation cost not yet recognized, period for recognition (in years)			1 year 10 months 2 days
Weighted average assumptions [Abstract]
Method used			Black‑Scholes
Expected life (in years)			3 years 6 months	3 years 6 months
Risk free interest rate (in hundredths)			0.70%	0.36%
Volatility (in hundredths)			36.37%	39.30%
Dividend yield (in hundredths)			0.00%	0.00%
Stock Options [Member] | Granted to Employees [Member]
Weighted average assumptions [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights			Subject to the terms and conditions of the 2011 Plan and applicable award documentation, such awards generally vest and become exercisable in equal installments over each of the first three anniversaries of the date of grant, with a maximum award term of five years.
Restricted Stock Units [Member]
Restricted Stock Unit Activity [Roll Forward]
Outstanding, beginning of period (in shares)			3,696,000
Granted (in shares)			69,000
Vested (in shares)			(215,000)
Expired or forfeited (in shares)			(94,000)
Outstanding, end of period (in shares)	3,456,000		3,456,000
Restricted stock unit activity, additional disclosures [Abstract]
Weighted average grant date fair value per share, outstanding, beginning of period (in dollars per share)			$ 21.31
Weighted average grant date fair value per share, granted (in dollars per share)			$ 24.73
Weighted average grant date fair value per share, vested (in dollars per share)			$ 18.99
Weighted average grant date fair value per share, expired or forfeited (in dollars per share)			$ 22.08
Weighted average grant date fair value per share, outstanding, end of period (in dollars per share)	$ 21.51		$ 21.51
Aggregate intrinsic value, outstanding, beginning of period			77,394,000
Aggregate intrinsic value, vested			4,901,000
Aggregate intrinsic value, outstanding, end of period	$ 88,288,000		$ 88,288,000
Shares withheld to fund grantee income tax withholding obligations (in shares)			52,516
Compensation cost not yet recognized [Abstract]
Total compensation cost not yet recognized, period for recognition (in years)			1 year 8 months 12 days
Restricted Stock Units [Member] | Granted to Employees [Member]
Weighted average assumptions [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights			For the RSU awards made to employees, the vesting of awards generally takes place in equal installments over each of the first three anniversaries of the date of grant.
Restricted Stock Units [Member] | Granted to Members of the Board of Directors [Member]
Weighted average assumptions [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights			The RSU awards made to members of the Board were made as part of the Board’s annual director compensation program, under which the vesting of RSU awards takes place generally on the first anniversary of the date of grant.

XML

Goodwill and Acquisition-Related Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Dec. 29, 2013	Jun. 30, 2013
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 79,238	$ 79,238
Accumulated Amortization	(60,575)	(57,315)
Acquisition-related intangible assets, net	18,663	21,923	[1]
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Fiscal year 2014	3,160
Fisacl year 2015	6,220
Fiscal year 2016	4,681
Fiscal year 2017	1,463
Fiscal year 2018	897
Fiscal year 2019 and thereafter	2,242
Completed technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	52,045	52,045
Accumulated Amortization	(41,467)	(39,163)
Acquisition-related intangible assets, net	10,578	12,882
Completed technology [Member] | Minimum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization period (years)	4 years	4 years
Completed technology [Member] | Maximum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization period (years)	12 years	12 years
Customer Lists [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	10,430	10,430
Accumulated Amortization	(7,738)	(7,313)
Acquisition-related intangible assets, net	2,692	3,117
Customer Lists [Member] | Minimum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization period (years)	5 years	5 years
Customer Lists [Member] | Maximum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization period (years)	12 years	12 years
Intellectual property and other [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	16,763	16,763
Accumulated Amortization	(11,370)	(10,839)
Acquisition-related intangible assets, net	$ 5,393	$ 5,924
Intellectual property and other [Member] | Minimum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization period (years)	2 years	2 years
Intellectual property and other [Member] | Maximum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization period (years)	15 years	15 years

[1] Amounts derived from the audited financial statements at June 30, 2013

XML

Asset Impairment, Restructuring and Other Charges (Recoveries) (Details) (USD $)	3 Months Ended		6 Months Ended
	Dec. 29, 2013	Dec. 23, 2012	Dec. 29, 2013	Dec. 23, 2012
Reported in asset impairment, restructuring and other charges [Abstract]
Asset Impairment Charges	$ 0	$ 1,906,000	$ 0	$ 1,906,000
Severance and workforce reduction costs (recoveries)	(9,000)	2,276,000	119,000	11,242,000
Decommissioning costs	93,000	55,000	177,000	55,000
Relocation and re-qualification costs	931,000	704,000	2,121,000	704,000
Total asset impairment, restructuring and other charges (recoveries)	1,015,000	4,941,000	2,417,000	13,907,000
Reported in cost of sales [Abstract]
Other Charges Related to the Restructuring Initiatives	700,000	400,000	1,100,000	1,300,000
Changes in restructuring related accruals [Roll Forward]
Balance at beginning of period			197,000
Accrued (recovered) during the period and charged to asset impairment, restructuring and other charges			119,000
Costs paid during the period			(172,000)
Balance at end of period	144,000		144,000
Fiscal Year 2013 El Segundo Fabrication Facility Closure Initiative [Member]
Reported in asset impairment, restructuring and other charges [Abstract]
Asset Impairment Charges	0	178,000	0	178,000
Severance and workforce reduction costs (recoveries)	(9,000)	170,000	(22,000)	5,857,000
Decommissioning costs	0	0	0	0
Relocation and re-qualification costs	0	210,000	4,000	210,000
Total asset impairment, restructuring and other charges (recoveries)	(9,000)	558,000	(18,000)	6,245,000
Reported in cost of sales [Abstract]
Other Charges Related to the Restructuring Initiatives	0	400,000	0	1,300,000
Changes in restructuring related accruals [Roll Forward]
Costs paid during the period	0	(1,600,000)	0	(2,400,000)
Total estimated costs of initiative [Abstract]
Total estimated cost of initiative, pre-tax			6,500,000
Total estimated future cash payments	200,000		200,000
Estimated cash expenditures for decommissioning	2,500,000		2,500,000
Fiscal Year 2013 El Segundo Fabrication Facility Closure Initiative [Member] | Severance and Workforce Reduction Costs (Recoveries) [Member]
Changes in restructuring related accruals [Roll Forward]
Balance at beginning of period			197,000
Accrued (recovered) during the period and charged to asset impairment, restructuring and other charges			(22,000)
Costs paid during the period			(31,000)
Balance at end of period	144,000		144,000
Total estimated costs of initiative [Abstract]
Total estimated cost of initiative, pre-tax			5,900,000
Fiscal Year 2013 El Segundo Fabrication Facility Closure Initiative [Member] | Relocation and requalification costs [Member]
Total estimated costs of initiative [Abstract]
Total estimated cost of initiative, pre-tax			400,000
Fiscal Year 2013 El Segundo Fabrication Facility Closure Initiative [Member] | Asset impairment costs [Member]
Total estimated costs of initiative [Abstract]
Total estimated cost of initiative, pre-tax			200,000
Fiscal Year 2013 Newport Fabrication Facility Resizing Initiative [Member]
Reported in asset impairment, restructuring and other charges [Abstract]
Asset Impairment Charges	0	666,000	0	666,000
Severance and workforce reduction costs (recoveries)	0	597,000	141,000	597,000
Decommissioning costs	93,000	55,000	177,000	55,000
Relocation and re-qualification costs	931,000	494,000	2,117,000	494,000
Total asset impairment, restructuring and other charges (recoveries)	1,024,000	1,812,000	2,435,000	1,812,000
Reported in cost of sales [Abstract]
Other Charges Related to the Restructuring Initiatives	600,000	0	1,100,000	0
Changes in restructuring related accruals [Roll Forward]
Costs paid during the period	(1,200,000)	(1,100,000)	(2,400,000)	(1,100,000)
Total estimated costs of initiative [Abstract]
Total estimated cost of initiative, pre-tax			16,500,000
Total estimated future cash payments	10,000,000		10,000,000
Fiscal Year 2013 Newport Fabrication Facility Resizing Initiative [Member] | Severance and Workforce Reduction Costs (Recoveries) [Member]
Changes in restructuring related accruals [Roll Forward]
Balance at beginning of period			0
Accrued (recovered) during the period and charged to asset impairment, restructuring and other charges			141,000
Costs paid during the period			(141,000)
Balance at end of period	0		0
Total estimated costs of initiative [Abstract]
Total estimated cost of initiative, pre-tax			3,200,000
Fiscal Year 2013 Newport Fabrication Facility Resizing Initiative [Member] | Relocation and requalification costs [Member]
Total estimated costs of initiative [Abstract]
Total estimated cost of initiative, pre-tax			6,900,000
Fiscal Year 2013 Newport Fabrication Facility Resizing Initiative [Member] | Asset impairment costs [Member]
Total estimated costs of initiative [Abstract]
Total estimated cost of initiative, pre-tax			700,000
Fiscal Year 2013 Newport Fabrication Facility Resizing Initiative [Member] | Decommissioning Costs [Member]
Total estimated costs of initiative [Abstract]
Total estimated cost of initiative, pre-tax			5,700,000
Fiscal Year 2013 Other Cost Reduction Activities Initiative [Member]
Reported in asset impairment, restructuring and other charges [Abstract]
Asset Impairment Charges	0	1,062,000	0	1,062,000
Severance and workforce reduction costs (recoveries)	0	1,509,000	0	4,788,000
Decommissioning costs	0	0	0	0
Relocation and re-qualification costs	0	0	0	0
Total asset impairment, restructuring and other charges (recoveries)	0	2,571,000	0	5,850,000
Changes in restructuring related accruals [Roll Forward]
Costs paid during the period		(1,900,000)		(3,800,000)
Fiscal Year 2013 Other Cost Reduction Activities Initiative [Member] | Severance and Workforce Reduction Costs (Recoveries) [Member]
Changes in restructuring related accruals [Roll Forward]
Balance at beginning of period			0
Accrued (recovered) during the period and charged to asset impairment, restructuring and other charges			0
Costs paid during the period			0
Balance at end of period	0		0
Fiscal Year 2013 Other Cost Reduction Activities Initiative [Member] | Related to research and development functions [Member]
Reported in asset impairment, restructuring and other charges [Abstract]
Severance and workforce reduction costs (recoveries)		600,000		1,100,000
Fiscal Year 2013 Other Cost Reduction Activities Initiative [Member] | Related to manufacturing functions [Member]
Reported in asset impairment, restructuring and other charges [Abstract]
Severance and workforce reduction costs (recoveries)		500,000		2,600,000
Fiscal Year 2013 Other Cost Reduction Activities Initiative [Member] | Related to general and administrative functions [Member]
Reported in asset impairment, restructuring and other charges [Abstract]
Severance and workforce reduction costs (recoveries)		400,000		1,100,000
Fiscal Year 2013 Other Cost Reduction Activities Initiative [Member] | Planned disposition of certain manufacturing equipment [Member]
Reported in asset impairment, restructuring and other charges [Abstract]
Asset Impairment Charges		$ 1,100,000		$ 1,100,000

XML

Supplemental Cash Flow Disclosures (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Dec. 29, 2013	Dec. 23, 2012
Changes in operating assets and liabilities [Abstract]
Trade accounts receivable	$ (18,392)	$ (34,979)
Inventories	(13,514)	(24,265)
Prepaid expenses and other current assets	1,818	255
Accounts Payable	(3,706)	(10,727)
Accrued salaries, wages and commissions	(2,288)	(175)
Deferred compensation	402	(465)
Accrued income taxes	4,266	(4,441)
Other accrued expenses	(6,658)	(17,573)
Changes in operating assets and liabilities, net	$ (38,072)	$ 25,608

XML

Other Long-Term Liabilities (Tables)

6 Months Ended

Dec. 29, 2013

Other Liabilities Disclosure [Abstract]

Other long term liabilities [Table Text Block]

ther long-term liabilities were comprised of the following (in thousands):

	December 29, 2013		June 30, 2013
Income taxes payable	$	3,346	$	12,344
Deferred compensation	11,012		9,903
Other	2,518		2,283
Total other long-term liabilities	$	16,876	$	24,530

Long Term Liabilities and Related Assets Measured at Fair Value on a Recurring Basis [Table Text Block]

The following tables present the long-term liabilities and the related assets measured at fair value on a recurring basis as of December 29, 2013 and June 30, 2013 (in thousands):

	December 29, 2013
	Total		Level 1		Level 2		Level 3
Employee deferred compensation plan liability	$	9,370	$	9,370	$	—	$	—
Assets of employee deferred compensation plan (reported in other assets)	10,225		10,225		—		—

	June 30, 2013
	Total		Level 1		Level 2		Level 3
Employee deferred compensation plan liability	$	8,326	$	8,326	$	—	$	—
Assets of employee deferred compensation plan (reported in other assets)	9,472		9,472		—		—

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Income Taxes (Details) (USD $)	3 Months Ended		6 Months Ended
	Dec. 29, 2013	Dec. 23, 2012	Dec. 29, 2013	Dec. 23, 2012
Income (loss) from continuing operations before income taxes [Abstract]
Income (loss) before income taxes	$ 16,290,000	$ (35,143,000)	$ 31,885,000	$ (56,968,000)
Unrecognized tax benefit total reduction impacting provision	(8,100,000)
Additional income tax disclosures [Line Items]
Income Tax Expense (Benefit)	(1,631,000)	(2,421,000)	5,241,000	4,529,000
Effective Income Tax Rate, Continuing Operations	(10.00%)	6.90%	16.40%	(8.00%)
Reduction in unrecognized tax benefits resulting from lapse of statutes of limitation		(4,300,000)	(8,900,000)
Foreign withholding taxes	500,000		1,000,000
Impact of rate reduction on deferred tax assets			4,000,000	3,200,000
Unrecognized Tax Benefits, Period Increase (Decrease)	(6,300,000)
Unrecognized Tax Benefits	39,600,000		39,600,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	3,300,000		3,300,000
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	(700,000)		(700,000)
Change in Accrued Interest and Penalties			(1,400,000)
other income tax expense	400,000
Tax expense (benefit) arising from settlements with foreign tax authorities	(500,000)		500,000
Unrecognized Tax Benefits, Decreases Resulting from Foreign Currency Translation	200,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	1,300,000		1,300,000
Undistributed earnings of foreign subsidiaries on which US income taxes have been provided	4,000,000		4,000,000
Foreign Tax Authority [Member]
Additional income tax disclosures [Line Items]
Income Tax Expense (Benefit)	5,700,000		8,800,000
Accruals for new uncertain tax positions [Member]
Additional income tax disclosures [Line Items]
Unrecognized Tax Benefits, Period Increase (Decrease)	700,000
reduction of taxes [Member]
Additional income tax disclosures [Line Items]
Reduction in unrecognized tax benefits resulting from lapse of statutes of limitation	(6,300,000)
reduction of related interest and penalties [Member]
Additional income tax disclosures [Line Items]
Reduction in unrecognized tax benefits resulting from lapse of statutes of limitation	$ (1,300,000)

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Business, Basis of Presentation and Summary of Significant Accounting Policies (Policies)

6 Months Ended

Dec. 29, 2013

Business, Basis of Presentation and Summary of Significant Accounting Policies [Abstract]

Basis of Presentation

The condensed consolidated financial statements have been prepared in accordance with the instructions for Form 10-Q pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC"), and therefore do not include all information and notes normally provided in audited financial statements prepared in accordance with U.S. generally accepted accounting principles ("GAAP"). The condensed consolidated financial statements include the accounts of the Company and its subsidiaries, which are located in North America, Europe and Asia. Intercompany balances and transactions have been eliminated in consolidation.

In the opinion of management, all adjustments (consisting of normal recurring accruals and other adjustments) considered necessary for a fair presentation of the Company's results of operations, financial position, and cash flows have been included.  The results of operations for the interim periods presented are not necessarily comparable to the results of operations for any other interim period or indicative of the results that will be recorded for the full fiscal year ending June 29, 2014. These condensed consolidated financial statements and the accompanying notes should be read in conjunction with the Company's annual consolidated financial statements and the notes thereto included in the Company's Annual Report on Form 10-K for the fiscal year ended June 30, 2013 filed with the SEC on August 20, 2013 (the "2013 Annual Report").

Fiscal Year and Quarter

The Company operates on a 52-53 week fiscal year with the fiscal year ending on the last Sunday in June. The three months ended December 2013 and 2012 each consisted of 13 weeks ending on December 29, 2013 and December 23, 2012, respectively. The six months ended December 2013 and 2012 each consisted of 26 weeks ending on December 29, 2013 and December 23, 2012, respectively. The current fiscal year will consist of 52 weeks and end on June 29, 2014.

Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported revenues and expenses during the reporting period. Actual results may differ from those estimates.

Fair Value of Financial Instruments

Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Assets and liabilities measured at fair value are categorized based on whether or not the inputs are observable in the market and the degree that the inputs are observable. The categorization of financial assets and liabilities within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The hierarchy is broken down into three levels, defined as follows:

• Level 1—Inputs are based on quoted market prices for identical assets or liabilities in active markets at the measurement date.

• Level 2—Inputs include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, and inputs (other than quoted prices) that are observable for the asset or liability, either directly or indirectly.

• Level 3—Inputs include management's best estimate of what market participants would use in pricing the asset or liability at the measurement date. The inputs are unobservable in the market and significant to the valuation.

When at least one significant valuation model assumption or input used to measure the fair value of financial assets or liabilities is unobservable in the market, they are deemed to be measured using Level 3 inputs. These Level 3 inputs may include pricing models, discounted cash flow methodologies or similar techniques where at least one significant model assumption or input is unobservable. The Company uses Level 3 inputs to value a non-transferable put option on a strategic investment (the “Put Option”).

The Company accounts for the Put Option as a derivative instrument not designated as an accounting hedge. The fair value was determined using the Black-Scholes option pricing model. The model uses inputs such as exercise price, fair market value of the underlying common stock, expected life (years), expected volatility, risk-free rate equivalent, and dividend yield. The expected life is the remaining life of the Put Option. Expected volatility is based on historical volatility of the underlying common stock. As of December 29, 2013, the Company determined that significant changes in the above assumptions would not materially affect the fair value of the Put Option. Additionally, the model relies on the material assumption that the issuer of the Put Option will uphold its financial obligation up to its common equity value should the Company exercise the Company’s right to put the associated number of common shares back to the issuer at a fixed price in local currency.

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Revolving Credit Facility and Bank Letters of Credit (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Dec. 29, 2013
Other Liabilities Disclosure [Abstract]
Outstanding letters of credit	$ 0.7
Revolving Credit Facility [Member]
Revolving Credit Facility [Line Items]
Line of Credit Facility, Initiation Date	Oct. 25, 2012
Line of Credit Facility, Maximum Borrowing Capacity	100
Sublimit for swingline loans	25
Sublimit for issuance of letters of credit	10
Line of Credit Facility, Expiration Date	Oct. 25, 2016
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.25%
Line of Credit Facility, Covenant Compliance	the Company was in compliance with the financial covenants
Line of Credit Facility, Amount Outstanding	$ 0

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Investments, Fair Value of Investments (Details) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2013	Jun. 30, 2013
Investments [Abstract]
Corporate debt		$ 40
U.S. government and agency obligations	5,001	11,016
Equity securities-strategic investments	26,501	17,365
Total securities at fair value	31,502	28,421
Measured at Fair Value on a Recurring Basis [Member] | Level 1 [Member]
Investments [Abstract]
Corporate debt		0
U.S. government and agency obligations	5,001	6,004
Equity securities-strategic investments	26,501	17,365
Total securities at fair value	31,502	23,369
Measured at Fair Value on a Recurring Basis [Member] | Level 2 [Member]
Investments [Abstract]
Corporate debt		40
U.S. government and agency obligations	0	5,012
Equity securities-strategic investments	0	0
Total securities at fair value	0	5,052
Measured at Fair Value on a Recurring Basis [Member] | Level 3 [Member]
Investments [Abstract]
Corporate debt		0
U.S. government and agency obligations	0	0
Equity securities-strategic investments	0	0
Total securities at fair value	$ 0	$ 0

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Segment Information (Tables)

6 Months Ended

Dec. 29, 2013

Segment Reporting [Abstract]

Revenue and Gross Margin by Reportable Segments

For the three and six months endedDecember 29, 2013 and December 23, 2012, revenues and gross margin by reportable segments were as follows (in thousands, except percentages):

	Three Months Ended
	December 29, 2013						December 23, 2012
Business Segment	Revenues		Percentage of Total		Gross Margin		Revenues		Percentage of Total		Gross Margin
Power Management Devices	$	102,878	38.1	%	30.0	%	$	83,273	37.2	%	14.5	%
Energy Saving Products	46,589		17.3		31.5		36,174		16.2		14.8
Automotive Products	36,364		13.5		31.2		28,414		12.7		11.1
Enterprise Power	33,195		12.3		42.4		28,649		12.8		25.0
HiRel	50,665		18.8		52.6		47,061		21.0		44.7
Customer Segments Total	269,691		99.9		36.2		223,571		99.9		21.8
Intellectual Property	274		0.1		100.0		251		0.1		100.0
Consolidated Total	$	269,965	100.0	%	36.3	%	$	223,822	100.0	%	21.9	%

	Six Months Ended
	December 29, 2013						December 23, 2012
Business Segment	Revenues		Percentage of Total		Gross Margin		Revenues		Percentage of Total		Gross Margin
Power Management Devices	$	204,844	38.0	%	30.4	%	$	174,100	36.6	%	17.6	%
Energy Saving Products	97,086		18.0		32.2		80,629		16.9		14.4
Automotive Products	72,827		13.5		31.8		57,252		12.0		10.8
Enterprise Power	65,444		12.1		40.0		66,458		14.0		32.4
HiRel	98,998		18.3		50.3		95,477		20.0		50.2
Customer Segments Total	539,199		99.9		35.7		473,916		99.5		24.9
Intellectual Property	516		0.1		100.0		2,398		0.5		72.5
Consolidated Total	$	539,715	100.0	%	35.8	%	$	476,314	100.0	%	25.1	%

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Other Long-Term Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2013	Jun. 30, 2013
Other Long-Term Liabilities [Abstract]
Income taxes payable	$ 3,346	$ 12,344
Deferred Compensation	11,012	9,903
Other	2,518	2,283
Total other long-term liabilities	16,876	24,530	[1]
Measured at Fair Value on a Recurring Basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Employee deferred compensation plan liability	9,370	8,326
Assets of employee deferred compensation plan (reported in other assets)	10,225	9,472
Measured at Fair Value on a Recurring Basis [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Employee deferred compensation plan liability	9,370	8,326
Assets of employee deferred compensation plan (reported in other assets)	$ 10,225	$ 9,472

[1] Amounts derived from the audited financial statements at June 30, 2013

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Inventories (Details) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2013	Jun. 30, 2013
Inventories [Abstract]
Raw materials	$ 56,370	$ 58,471
Work-in-process	113,912	97,158
Finished goods	77,458	76,686
Total inventories	$ 247,740	$ 232,315	[1]

[1] Amounts derived from the audited financial statements at June 30, 2013

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Derivative Financial Instruments

6 Months Ended

Dec. 29, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Financial Instruments

Derivative Financial Instruments

The Company is exposed to financial market risks, including fluctuations in interest rates, foreign currency exchange rates and market value risk related to its investments. The Company uses derivative financial instruments primarily to mitigate foreign exchange rate risks, but also as part of its strategic investment program. In the normal course of business, the Company also faces risks that are either non-financial or non-quantifiable. Such risks principally include country risk, credit risk and legal risk, and are not discussed or quantified in the following analysis. As of December 29, 2013, the Company’s only derivatives were currency forward contracts which were not designated as accounting hedges, the Put Option (See Note 2, “Investments”), and a call option on the equity of a private domestic company. The private domestic company is a development stage entity, and as such, the Company is unable to determine the fair value of the call option at this time.

Interest Rates

The Company is subject to interest rate risk through its investments. The objectives of the Company’s investments in debt securities are to preserve principal and maintain liquidity while achieving market returns on the investment portfolio. To achieve these objectives, the returns on the Company’s investments in short-term debt generally will be compared to LIBOR or to yields on money market instruments such as U.S. commercial paper programs and U.S. Treasury Bills.

Foreign Currency Exchange Rates

A significant amount of the Company's revenues, expense, and capital purchasing transactions are conducted on a global basis in several foreign currencies. To protect against exposure to currency exchange rate fluctuations, the Company has established a balance sheet transaction risk hedging program. Through this hedging program, the Company seeks to reduce, but does not eliminate, the impact of currency exchange rate movements.

The Company generally hedges the risks of foreign currency-denominated working capital positions with offsetting foreign currency-denominated exchange transactions, using currency forward contracts or spot transactions.  Transaction gains and losses on these foreign currency-denominated working capital positions are generally offset by corresponding gains and losses on the related hedging instruments, usually resulting in reduced net exposure. At various times, the Company has currency exposure related to the British Pound Sterling, the Euro, and the Japanese Yen.  For example, in the United Kingdom, the Company has a sales office and a semiconductor wafer fabrication facility with revenues in U.S. Dollars and Euros, and expenses in British Pounds Sterling and U.S. Dollars. The Company does not hedge its revenues and expenses against changes in foreign currency exchange rates, as it does notperceive the net risk of changes to translated revenues and expenses from changes in exchange rates as significant enough at this time to justify hedging.

For its balance sheet transaction risk hedging program, the Company had approximately $24.1 million in notional amounts of forward contracts not designated as accounting hedges outstanding at December 29, 2013.  Net realized and unrealized foreign currency gains (losses) related to foreign currency forward contracts not designated as accounting hedges, recognized in earnings as a component of other expense, net, were $(0.1) million and $0.9 million for the three and six months endedDecember 29, 2013, respectively, and $0.3 million and $(2.1) million for the three and six months endedDecember 23, 2012, respectively.

At December 29, 2013 and June 30, 2013, the fair value carrying amounts of the Company’s derivative instruments were as follows (in thousands):

	December 29, 2013
	Derivative Assets			Derivative Liabilities
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Put Option	Other assets	$	1,930
Currency forward contracts				Other accrued expenses	$	10
Total		$	1,930		$	10

	June 30, 2013
	Derivative Assets
	Balance Sheet Location	Fair Value
Put Option	Other assets	$	2,888
Currency forward contracts	Prepaid expenses and other current assets	19
Total		$	2,907

The gain (loss) recognized in earnings as a component of other expense, net, for the Company’s derivatives not designated as hedging instruments during the three and six months endedDecember 29, 2013 and December 23, 2012 was comprised of the following (in thousands):

	Three Months Ended					Six Months Ended
	December 29, 2013			December 23, 2012		December 29, 2013			December 23, 2012
Put Option	$	(633	)	$	116	$	(958	)	$	202
Currency forward contracts	(85		)	285		865			(2,144		)
Total	$	(718	)	$	401	$	(93	)	$	(1,942	)

Fair Value

The following tables present derivative instruments measured at fair value on a recurring basis as of December 29, 2013 and June 30, 2013 (in thousands):

	December 29, 2013
	Total			Level 1		Level 2			Level 3
Put Option	$	1,930		$	—	$	—		$	1,930
Foreign currency derivatives:
Liabilities	(10		)	—		(10		)	—
Total derivative instruments at fair value, net	$	1,920		$	—	$	(10	)	$	1,930

	June 30, 2013
	Total		Level 1		Level 2		Level 3
Put Option	$	2,888	$	—	$	—	$	2,888
Foreign currency derivatives:
Assets	19		—		19		—
Total derivative instruments at fair value	$	2,907	$	—	$	19	$	2,888

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Derivative Financial Instruments, Derivative Contracts (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 29, 2013	Dec. 23, 2012	Dec. 29, 2013	Dec. 23, 2012
Forward contracts not designated as accounting hedges [Abstract]
Notional amounts of forward contracts not designated as accounting hedges	$ 24.1		$ 24.1
Net realized and unrealized foreign-currency gains (losses) related to foreign currency forward contracts recognized in earnings as a component of other expense, net	$ (0.1)	$ 0.3	$ 0.9	$ (2.1)

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Supplemental Cash Flow Disclosures (Tables)

6 Months Ended

Dec. 29, 2013

Supplemental Cash Flow Disclosures [Abstract]

Cash Flow, Operating Capital [Table Text Block]

Components of the changes in operating assets and liabilities during the six months endedDecember 29, 2013 and December 23, 2012 were comprised of the following (in thousands):

	Six Months Ended
	December 29, 2013			December 23, 2012
Trade accounts receivable	$	(18,392	)	$	34,979
Inventories	(13,514		)	24,265
Prepaid expenses and other current assets	1,818			(255		)
Accounts payable	(3,706		)	(10,727		)
Accrued salaries, wages and commissions	(2,288		)	(175		)
Deferred compensation	402			(465		)
Accrued income taxes	4,266			(4,441		)
Other accrued expenses	(6,658		)	(17,573		)
Changes in operating assets and liabilities	$	(38,072	)	$	25,608

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Derivative Financial Instruments (Tables)

6 Months Ended

Dec. 29, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Fair Value Carrying Amount of Derivative Instruments

At December 29, 2013 and June 30, 2013, the fair value carrying amounts of the Company’s derivative instruments were as follows (in thousands):

	December 29, 2013
	Derivative Assets			Derivative Liabilities
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Put Option	Other assets	$	1,930
Currency forward contracts				Other accrued expenses	$	10
Total		$	1,930		$	10

	June 30, 2013
	Derivative Assets
	Balance Sheet Location	Fair Value
Put Option	Other assets	$	2,888
Currency forward contracts	Prepaid expenses and other current assets	19
Total		$	2,907

Gain or (Loss) Recognized in Earnings on Derivative Instruments

The gain (loss) recognized in earnings as a component of other expense, net, for the Company’s derivatives not designated as hedging instruments during the three and six months endedDecember 29, 2013 and December 23, 2012 was comprised of the following (in thousands):

	Three Months Ended					Six Months Ended
	December 29, 2013			December 23, 2012		December 29, 2013			December 23, 2012
Put Option	$	(633	)	$	116	$	(958	)	$	202
Currency forward contracts	(85		)	285		865			(2,144		)
Total	$	(718	)	$	401	$	(93	)	$	(1,942	)

Derivative Instruments Measured at Fair Value on a Recurring Basis

The following tables present derivative instruments measured at fair value on a recurring basis as of December 29, 2013 and June 30, 2013 (in thousands):

	December 29, 2013
	Total			Level 1		Level 2			Level 3
Put Option	$	1,930		$	—	$	—		$	1,930
Foreign currency derivatives:
Liabilities	(10		)	—		(10		)	—
Total derivative instruments at fair value, net	$	1,920		$	—	$	(10	)	$	1,930

	June 30, 2013
	Total		Level 1		Level 2		Level 3
Put Option	$	2,888	$	—	$	—	$	2,888
Foreign currency derivatives:
Assets	19		—		19		—
Total derivative instruments at fair value	$	2,907	$	—	$	19	$	2,888

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Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 29, 2013	Dec. 23, 2012	Dec. 29, 2013	Dec. 23, 2012
Segment Reporting [Abstract]
Number of reportable segments			6
Schedule of Segment Reporting Information [Line Items]
Revenues	$ 269,965	$ 223,822	$ 539,715	$ 476,314
Percentage of total (in hundredths)	100.00%	100.00%	100.00%	100.00%
Gross margin (in hundredths)	36.30%	21.90%	35.80%	25.10%
Customer Segments [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues	269,691	223,571	539,199	473,916
Percentage of total (in hundredths)	99.90%	99.90%	99.90%	99.50%
Gross margin (in hundredths)	36.20%	21.80%	35.70%	24.90%
Power Management Devices [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues	102,878	83,273	204,844	174,100
Percentage of total (in hundredths)	38.10%	37.20%	38.00%	36.60%
Gross margin (in hundredths)	30.00%	14.50%	30.40%	17.60%
Energy-Saving Products [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues	46,589	36,174	97,086	80,629
Percentage of total (in hundredths)	17.30%	16.20%	18.00%	16.90%
Gross margin (in hundredths)	31.50%	14.80%	32.20%	14.40%
Automotive Products [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues	36,364	28,414	72,827	57,252
Percentage of total (in hundredths)	13.50%	12.70%	13.50%	12.00%
Gross margin (in hundredths)	31.20%	11.10%	31.80%	10.80%
Enterprise Power [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues	33,195	28,649	65,444	66,458
Percentage of total (in hundredths)	12.30%	12.80%	12.10%	14.00%
Gross margin (in hundredths)	42.40%	25.00%	40.00%	32.40%
HiRel [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues	50,665	47,061	98,998	95,477
Percentage of total (in hundredths)	18.80%	21.00%	18.30%	20.00%
Gross margin (in hundredths)	52.60%	44.70%	50.30%	50.20%
Intellectual Property [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues	$ 274	$ 251	$ 516	$ 2,398
Percentage of total (in hundredths)	0.10%	0.10%	0.10%	0.50%
Gross margin (in hundredths)	100.00%	100.00%	100.00%	72.50%

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Derivative Financial Instruments, Gain or (Loss) Recognized in Earnings on Derivative Instruments (Details) (USD $)	3 Months Ended		6 Months Ended						3 Months Ended		6 Months Ended				3 Months Ended		6 Months Ended
	Dec. 29, 2013	Dec. 23, 2012	Dec. 29, 2013	Dec. 23, 2012	Dec. 29, 2013 Derivatives Not Designated as Hedging Instruments [Member]	Jun. 30, 2013 Derivatives Not Designated as Hedging Instruments [Member]	Dec. 29, 2013 Derivatives Not Designated as Hedging Instruments [Member] Put Option [Member] Other Assets [Member]	Jun. 30, 2013 Derivatives Not Designated as Hedging Instruments [Member] Put Option [Member] Other Assets [Member]	Dec. 29, 2013 Derivatives Not Designated as Hedging Instruments [Member] Put Option [Member] Other Expense, net [Member]	Dec. 23, 2012 Derivatives Not Designated as Hedging Instruments [Member] Put Option [Member] Other Expense, net [Member]	Dec. 29, 2013 Derivatives Not Designated as Hedging Instruments [Member] Put Option [Member] Other Expense, net [Member]	Dec. 23, 2012 Derivatives Not Designated as Hedging Instruments [Member] Put Option [Member] Other Expense, net [Member]	Jun. 30, 2013 Derivatives Not Designated as Hedging Instruments [Member] Forward Contracts [Member] Prepaid expenses and other current assets [Member]	Dec. 29, 2013 Derivatives Not Designated as Hedging Instruments [Member] Forward Contracts [Member] Other Accrued Expenses [Member]	Dec. 29, 2013 Derivatives Not Designated as Hedging Instruments [Member] Forward Contracts [Member] Other Expense, net [Member]	Dec. 23, 2012 Derivatives Not Designated as Hedging Instruments [Member] Forward Contracts [Member] Other Expense, net [Member]	Dec. 29, 2013 Derivatives Not Designated as Hedging Instruments [Member] Forward Contracts [Member] Other Expense, net [Member]	Dec. 23, 2012 Derivatives Not Designated as Hedging Instruments [Member] Forward Contracts [Member] Other Expense, net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net realized and unrealized foreign-currency gains (losses) related to foreign currency forward contracts recognized in earnings as a component of other expense, net	$ (100,000)	$ 300,000	$ 900,000	$ (2,100,000)
Derivative Assets, Fair Value					1,930,000	2,907,000	1,930,000	2,888,000					19,000
Derivative Liabilities, Fair Value					10,000									10,000
Amount of Gain or (Loss) Recognized in Income on Derivatives	$ (718,000)	$ 401,000	$ (93,000)	$ (1,942,000)					$ (633,000)	$ 116,000	$ (958,000)	$ 202,000			$ (85,000)	$ 285,000	$ 865,000	$ (2,144,000)

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Inventories (Tables)

6 Months Ended

Dec. 29, 2013

Inventories [Abstract]

Schedule of Inventory, Current [Table Text Block]

At December 29, 2013 and June 30, 2013, inventories were comprised of the following (in thousands):

	December 29, 2013		June 30, 2013
Raw materials	$	56,370	$	58,471
Work-in-process	113,912		97,158
Finished goods	77,458		76,686
Total inventories	$	247,740	$	232,315

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Goodwill and Acquisition-Related Intangible Assets (Tables)

6 Months Ended

Dec. 29, 2013

Goodwill and Acquisition Related Intangible Assets [Abstract]

Schedule of Finite-Lived Intangible Assets [Table Text Block]

At December 29, 2013 and June 30, 2013, acquisition‑related intangible assets included the following (in thousands):

		December 29, 2013
	Amortization Periods (Years)	Gross Carrying Amount		Accumulated Amortization			Net
Completed technology	4 - 12	$	52,045	$	(41,467	)	$	10,578
Customer lists	5 - 12	10,430		(7,738		)	2,692
Intellectual property and other	2 - 15	16,763		(11,370		)	5,393
Total acquisition‑related intangible assets		$	79,238	$	(60,575	)	$	18,663

		June 30, 2013
	Amortization Periods (Years)	Gross Carrying Amount		Accumulated Amortization			Net
Completed technology	4 - 12	$	52,045	$	(39,163	)	$	12,882
Customer lists	5 - 12	10,430		(7,313		)	3,117
Intellectual property and other	2 - 15	16,763		(10,839		)	5,924
Total acquisition‑related intangible assets		$	79,238	$	(57,315	)	$	21,923

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

As of December 29, 2013, the following table represents the total estimated amortization of intangible assets for the remainder of fiscal year 2014 and the five succeeding fiscal years (in thousands):

			Fiscal Year
	Total		2014		2015		2016		2017		2018		2019 and thereafter
Estimated amortization expense	$	18,663	$	3,160	$	6,220	$	4,681	$	1,463	$	897	$	2,242

Schedule of Goodwill [Table Text Block]

he carrying amount of goodwill by reportable segment was as follows (in thousands):

Business Segments:	December 29, 2013		June 30, 2013
Energy Saving Products	$	33,190	$	33,190
HiRel	18,959		18,959
Total goodwill	$	52,149	$	52,149

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Investments

6 Months Ended

Dec. 29, 2013

Investments, Debt and Equity Securities [Abstract]

Investments

Investments

Available-for-sale investments are carried at fair value, inclusive of unrealized gains and losses, and net of discount accretion and premium amortization computed using the level yield method. Net unrealized gains and losses are included in other comprehensive income (loss) net of applicable income taxes. Gains or losses on sales of available-for-sale investments are recognized using the first-in, first-out method and are included in other expense (income) or interest expense (income) depending upon the type of security.

Available-for-sale securities as of December 29, 2013 are summarized as follows (in thousands):

	Amortized Costs		Gross Unrealized Gain		Gross Unrealized Loss		Net Unrealized Gain		Market Value
Short-Term Investments:
U.S. government and agency obligations	$	4,999	$	2	$	—	$	2	$	5,001
Total short-term investments	$	4,999	$	2	$	—	$	2	$	5,001
Equity securities	$	11,631	$	14,870	$	—	$	14,870	$	26,501

Available-for-sale securities as of June 30, 2013 are summarized as follows (in thousands):

	Amortized Costs		Gross Unrealized Gain		Gross Unrealized Loss			Net Unrealized Gain		Market Value
Short-Term Investments:
Corporate debt	$	—	$	40	$	—		$	40	$	40
U.S. government and agency obligations	11,007		9		—			9		11,016
Total short-term investments	$	11,007	$	49	$	—		$	49	$	11,056
Equity securities	$	11,631	$	5,739	$	(5	)	$	5,734	$	17,365

The Company's investment policy is to manage its total cash and investments balances to preserve principal and maintain liquidity while achieving market returns on the investment portfolio.

The Company also holds as strategic investments the common stock of three publicly traded foreign companies. The common stock of the three companies is shown as “Equity securities” in the table above and is included in other assets on the consolidated balance sheets. The common shares of the publicly traded companies are traded on either the Tokyo Stock Exchange or the Taiwan Stock Exchange. The Company holds an option on one of the strategic investments to put the associated number of common shares back to the issuer at a fixed price in local currency (which is described as the “Put Option” in Note 1). The Put Option became effective September 1, 2009 and is reported at fair value. As of December 29, 2013, the fair value of the Put Option was $1.9 million, with changes in fair value recorded in other expense, net (See Note 3, “Derivative Financial Instruments”). The Company received no dividend income from these investments for each of the three months ended December 29, 2013 and December 23, 2012, and $0.1 million in dividend income for each of the six months endedDecember 29, 2013 and December 23, 2012.

The Company evaluates securities for other-than-temporary impairment on a quarterly basis. Impairment is evaluated considering numerous factors, and their relative significance varies depending on the situation. Factors considered include the length of time and extent to which the market value has been less than cost, the financial condition and near-term prospects of the issuer of the securities, and the intent and ability of the Company to retain the security in order to allow for an anticipated recovery in fair value. If, based upon the analysis, it is determined that the impairment is other-than-temporary, the security is written down to fair value and a loss is recognized through earnings.

There were no other-than-temporary impairments recorded for the Company's investments during each of the three and six months endedDecember 29, 2013 and December 23, 2012.

Unrealized loss positions are measured and determined at each fiscal quarter end. There were no available-for-sale investments in a gross unrealized loss position as of December 29, 2013. The following table summarizes the fair value and gross unrealized losses related to available-for-sale investments, aggregated by type of investment and length of time that individual securities were held in a loss position as of June 30, 2013 (in thousands):

	Securities held in a loss position for less than 12 months at June 30, 2013					Securities held in a loss position for 12 months or more at June 30, 2013				Total in a loss position at June 30, 2013
	Market Value		Gross Unrealized Losses			Market Value		Gross Unrealized Losses		Market Value		Gross Unrealized Losses
Equity Securities	$	1,052	$	(5	)	$	—	$	—	$	1,052	$	(5	)
Total	$	1,052	$	(5	)	$	—	$	—	$	1,052	$	(5	)

The amortized cost and estimated fair value of investments at December 29, 2013, by contractual maturity of investment, are as follows (in thousands):

Contractual Maturity	Amortized Cost		Estimated Market Value
Due in 1 year or less	$	4,999	$	5,001
Total investments	$	4,999	$	5,001

The Company may decide to dispose of securities prior to the contractual maturity date indicated in the table above.

During the three and six months endedDecember 29, 2013, the Company sold a de minimis amount of available-for-sale securities, and the related total proceeds and gross realized gains and (losses) were also de minimis. Available-for-sale securities were sold for total proceeds of $52.1 million during the three and six months ended December 23, 2012, and gross realized gains and (losses) were de minimis. The cost of marketable securities sold was determined by the first-in, first-out method.

Fair Value of Investments

The following tables present the balances of investments measured at fair value on a recurring basis, by type of investment (in thousands):

	As of December 29, 2013
	Total		Level 1		Level 2		Level 3
U.S. government and agency obligations	$	5,001	$	5,001	$	—	$	—
Equity securities-strategic investments	26,501		26,501		—		—
Total securities at fair value	$	31,502	$	31,502	$	—	$	—

	As of June 30, 2013
	Total		Level 1		Level 2		Level 3
Corporate debt	$	40	$	—	$	40	$	—
U.S. government and agency obligations	11,016		6,004		5,012		—
Equity securities-strategic investments	17,365		17,365		—		—
Total securities at fair value	$	28,421	$	23,369	$	5,052	$	—

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Other Accrued Expenses (Tables)

6 Months Ended

Dec. 29, 2013

Other Accrued Expenses [Abstract]

Schedule of Accrued Liabilities [Table Text Block]

ther accrued expenses were comprised of the following (in thousands):

	December 29, 2013		June 30, 2013
Sales returns	$	35,418	$	33,902
Accrued accounting and legal costs	10,421		8,108
Deferred revenue	11,826		9,678
Accrued warranty	1,787		1,992
Accrued utilities	2,320		2,516
Accrued repurchase obligation	2,553		4,759
Accrued sales and other taxes	4,927		3,053
Accrued subcontractor costs	1,384		1,307
Accrued rent	4,331		4,858
Other	5,096		8,241
Total other accrued expenses	$	80,063	$	78,414

Schedule of Product Warranty Liability [Table Text Block]

The following table details the changes in the Company’s warranty reserve for the six months endedDecember 29, 2013, which is included in other accrued liabilities in the schedule above (in thousands):

Accrued warranty, June 30, 2013	$	1,992
Accruals for warranties issued during the period	1,193
Changes in estimates related to pre-existing warranties	13
Warranty claim settlements	(1,411		)
Accrued warranty, December 29, 2013	$	1,787

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Investments, Available-for-sale Securities (Details) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2013	Jun. 30, 2013
Schedule of Available-for-sale Securities [Line Items]
Total securities at fair value	$ 31,502	$ 28,421
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Costs	11,631	11,631
Gross Unrealized Gain	14,870	5,739
Gross Unrealized Loss	0	(5)
Net Unrealized Gain	14,870	5,734
Total securities at fair value	26,501	17,365
Short-Term Investment [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Costs	4,999	11,007
Gross Unrealized Gain	2	49
Gross Unrealized Loss	0	0
Net Unrealized Gain	2	49
Total securities at fair value	5,001	11,056
Short-Term Investment [Member] | Corporate Debt [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Costs		0
Gross Unrealized Gain		40
Gross Unrealized Loss		0
Net Unrealized Gain		40
Total securities at fair value		40
Short-Term Investment [Member] | U.S. Government and Agency Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Costs	4,999	11,007
Gross Unrealized Gain	2	9
Gross Unrealized Loss	0	0
Net Unrealized Gain	2	9
Total securities at fair value	$ 5,001	$ 11,016

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Changes in Accumulated Other Comprehensive Income (Loss) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 29, 2013	Dec. 23, 2012	Dec. 29, 2013		Dec. 23, 2012
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated other comprehensive income (loss) beginning balance			$ (21,803)	[1]
Other comprehensive income before reclassifications			29,490
Amounts reclassified from accumulated other comprehensive income (loss)			(36)
Net other comprehensive income	11,124	766	29,454		8,794
Accumulated other comprehensive income (loss) ending balance	7,651		7,651
Foreign Currency Translation Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated other comprehensive income (loss) beginning balance			(22,266)
Other comprehensive income before reclassifications			20,365
Amounts reclassified from accumulated other comprehensive income (loss)			0
Net other comprehensive income			20,365
Accumulated other comprehensive income (loss) ending balance	(1,901)		(1,901)
Unrealized Gain (Loss) on available-for-sale securities [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated other comprehensive income (loss) beginning balance			463
Other comprehensive income before reclassifications			9,125
Amounts reclassified from accumulated other comprehensive income (loss)			(36)
Net other comprehensive income			9,089
Accumulated other comprehensive income (loss) ending balance	9,552		9,552
Interest Income, net [Member] | Unrealized Gain (Loss) on available-for-sale securities [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Amounts reclassified from accumulated other comprehensive income (loss)	$ 0	$ 0	$ 0		$ 0

[1] Amounts derived from the audited financial statements at June 30, 2013

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CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 29, 2013	Dec. 23, 2012	Dec. 29, 2013	Dec. 23, 2012
Income Statement [Abstract]
Revenues	$ 269,965	$ 223,822	$ 539,715	$ 476,314
Cost of sales	172,000	174,733	346,439	356,684
Gross profit	97,965	49,089	193,276	119,630
Selling, general and administrative expense	44,727	45,083	88,477	92,378
Research and development expense	32,786	32,125	64,959	65,574
Amortization of acquisition-related intangible assets	1,630	1,680	3,260	3,360
Asset impairment, restructuring and other charges	1,015	4,941	2,417	13,907
Operating income (loss)	17,807	(34,740)	34,163	(55,589)
Other expense, net	1,510	411	2,272	1,419
Interest expense (income), net	7	(8)	6	(40)
Income (loss) before income taxes	16,290	(35,143)	31,885	(56,968)
Provision for (benefit from) income taxes	(1,631)	(2,421)	5,241	4,529
Net income (loss)	$ 17,921	$ (32,722)	$ 26,644	$ (61,497)
Net income (loss) per common share [Abstract]
Basic	$ 0.25	$ (0.47)	$ 0.38	$ (0.89)
Diluted	$ 0.25	$ (0.47)	$ 0.37	$ (0.89)
Weighted average common shares outstanding [Abstract]
Basic	71,147	69,144	70,988	69,213
Diluted	72,163	69,144	71,885	69,213

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Derivative Financial Instruments, Measured at Fair Value on a Recurring Basis (Details) (Measured at Fair Value on a Recurring Basis [Member], USD $) In Thousands, unless otherwise specified	Dec. 29, 2013	Jun. 30, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Put option	$ 1,930	$ 2,888
Foreign currency derivatives [Abstract]
Assets		19
Liabilities	(10)
Total derivative instruments at fair value	1,920	2,907
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Put option	0	0
Foreign currency derivatives [Abstract]
Assets		0
Liabilities	0
Total derivative instruments at fair value	0	0
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Put option	0	0
Foreign currency derivatives [Abstract]
Assets		19
Liabilities	(10)
Total derivative instruments at fair value	(10)	19
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Put option	1,930	2,888
Foreign currency derivatives [Abstract]
Assets		0
Liabilities	0
Total derivative instruments at fair value	$ 1,930	$ 2,888

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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Dec. 29, 2013		Dec. 23, 2012
Cash flows from operating activities:
Net income (loss)	$ 26,644		$ (61,497)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	43,543		45,775
Amortization of acquisition-related intangible assets	3,260		3,360
Loss on disposal of fixed assets	70		4,099
Impairment of long-lived assets	0		2,376
Stock compensation expense	13,489		11,117
Gain on sale of investments	(36)		(8)
Provision for bad debts	0		2
Provision for inventory write-downs	935		11,395
Loss on derivatives	987		2,117
Deferred income taxes	6,946		5,584
Changes in operating assets and liabilities, net	(38,072)		25,608
Other	457		(1,464)
Net cash provided by operating activities	58,223		48,464
Cash flows from investing activities:
Additions to property, plant and equipment	(22,632)		(48,040)
Proceeds from sale of property, plant and equipment	25		118
Sales of investments	36		52,131
Maturities of investments	6,000		21,500
Purchases of investments	0		(9,979)
Release from (addition to) restricted cash	12		(13)
Net cash provided by (used in) investing activities	(16,559)		15,717
Cash flows from financing activities:
Proceeds from exercise of stock options	10,897		987
Purchase of treasury stock	0		(5,210)
Net settlement of restricted stock units for tax withholdings	(1,160)		(1,025)
Net cash provided by (used in) financing activities	9,737		(5,248)
Effect of exchange rate changes on cash and cash equivalents	3,596		2,300
Net increase in cash and cash equivalents	54,997		61,233
Cash and cash equivalents, beginning of period	443,490	[1]	305,423
Cash and cash equivalents, end of period	$ 498,487		$ 366,656

[1] Amounts derived from the audited financial statements at June 30, 2013

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Environmental Matters (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Dec. 29, 2013
Foreclosure of El Segundo Property [Member]
Site Contingency [Line Items]
Site Contingency	In December 2010, the owner by foreclosure of a property in El Segundo, California formerly owned and leased by the Company notified the Company of its claim that the Company is a potentially responsible party for the remediation of hazardous materials allegedly discovered by that owner at the property.  The Company had also been contacted by the DTSC in connection with that 2010 notice.  Separately, in July 2012, the Company received notice from a subsequent owner of that property seeking reimbursement of investigation costs and increased construction costs allegedly resulting from the presence of hazardous materials at the property.  The Company intends to vigorously defend against all of the claims asserted by the various parties in respect of the property.
Temecula California Manufacturing Facility [Member]
Site Contingency [Line Items]
Local districts requiring updated permit documentation without the assessment of any penalty	1
Former Manufacturing Plant in Italy [Member]
Site Contingency [Line Items]
Number of former manufacturing plants where chemical compounds were discovered	1
OII Site [Member]
Site Contingency [Line Items]
Settlement offer received and not accepted	$ 9.3
Minimum number of insurers who provided reimbursement for defense costs	1
Omega Site [Member]
Site Contingency [Line Items]
Approximate number of defendants in litigation matter	100
Approximate distance of plaintiff's facility from Omega Site (in miles)	1.5
Estimated volumetric share of wastes sent to Omega Site (in hundredths)	0.08%
Number of insurance carriers who have agreed to defend the Entity under a reservation of rights	1
Maximum volumetric share wastes sent to Omega Site (in hundredths)	0.10%

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Stock-Based Compensation (Tables)

6 Months Ended

Dec. 29, 2013

Compensation and Retirement Disclosure [Abstract]

Stock Option Activity

The following table summarizes the stock option activity for the six months endedDecember 29, 2013 (in thousands, except per share price data):

	Stock Option Shares		Weighted Average Option Exercise Price per Share		Weighted Average Grant Date Fair Value per Share		Aggregate Intrinsic Value
Outstanding, June 30, 2013	1,187		$	17.08			$	4,978
Granted	4		$	24.76	$	6.82
Exercised	(673	)	$	16.19			$	5,330
Expired or forfeited	(5	)	$	16.83
Outstanding, December 29, 2013	513		$	18.31			$	3,919

Restricted Stock Unit Activity

The following table summarizes the RSU activity for the six months endedDecember 29, 2013 (in thousands, except per share price data):

	Restricted Stock Units		Weighted Average  Grant Date Fair Value Per Share		Aggregate Intrinsic Value
Outstanding, June 30, 2013	3,696		$	21.31	$	77,394
Granted	69		$	24.73
Vested	(215	)	$	18.99	$	4,901
Expired or forfeited	(94	)	$	22.08
Outstanding, December 29, 2013	3,456		$	21.51	$	88,288

Additional Information Relating to Stock Options and RSU's

Additional information relating to the Company’s stock based compensation plans, including employee stock options and RSUs at December 29, 2013 and June 30, 2013 is as follows (in thousands):

	December 29, 2013	June 30, 2013
Outstanding options exercisable	377	1,039
Options and RSUs available for grant	6,079	6,040
Total reserved common stock shares for stock option plans	10,048	10,923

Stock-Based Compensation Expense

For the three and six months endedDecember 29, 2013 and December 23, 2012, stock‑based compensation expense associated with the Company’s stock options and RSUs was as follows (in thousands):

	Three Months Ended				Six Months Ended
	December 29, 2013		December 23, 2012		December 29, 2013		December 23, 2012
Cost of sales	$	1,362	$	1,123	$	2,610	$	2,281
Selling, general and administrative expense	3,123		2,858		6,650		6,018
Research and development expense	2,142		1,397		4,229		2,818
Total stock‑based compensation expense	$	6,627	$	5,378	$	13,489	$	11,117

Stock Options Valuation Assumptions

The fair value of the stock options associated with the above compensation expense for the six months endedDecember 29, 2013 and December 23, 2012 was determined at the grant date using the Black‑Scholes option pricing model with the following weighted average assumptions:

	December 29, 2013		December 23, 2012
Expected life	3.5 years		3.5 years
Risk free interest rate	0.70	%	0.36	%
Volatility	36.37	%	39.30	%
Dividend yield	0.00	%	0.00	%

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Environmental Matters

6 Months Ended

Dec. 29, 2013

Environmental Remediation Obligations [Abstract]

Environmental Matters

Environmental Matters

Federal, state, local and foreign laws and regulations impose various restrictions and controls on the storage, use and discharge of certain materials, chemicals and gases used in semiconductor manufacturing processes, and on the operation of the Company's facilities and equipment. The Company believes it uses reasonable efforts to maintain a system of compliance and controls for these laws and regulations. Despite its efforts and controls, from time to time, issues may arise with respect to these matters. Additionally, under some of these laws and regulations, the Company could be held financially responsible for remedial measures if properties are contaminated or if waste is sent to a landfill or recycling facility that becomes contaminated. Also, the Company may be subject to common law claims if released substances damage or harm third parties. The Company cannot make assurances that changes in environmental laws and regulations will not require additional investments in capital equipment and the implementation of additional compliance programs in the future, which could have a material adverse effect on the Company's results of operations, financial position or cash flows, as could any failure by or violation of the Company to comply with any prior, current or future environmental laws and regulations.

In February 2012, the Company notified the California Department of Toxic Substances Control (“DTSC”) and local districts that the Company’s Temecula California manufacturing facility previously shipped wastes for disposal offsite as non-hazardous wastes which may have contained fluoride levels that are considered to constitute hazardous waste under California regulations. The Company has taken steps to ensure compliance with the applicable waste disposal regulations in this regard. The Company has received a notice of minor administrative violation from one of the local districts requiring updated permit documentation without the assessment of any penalty. The Company has not as yet been contacted by all applicable regulatory authorities, including the DTSC, in respect of this matter and it is too early to assess what, if any, penalties or other actions may be taken in the future in respect of the matter.

In December 2010, the owner by foreclosure of a property in El Segundo, California formerly owned and leased by the Company notified the Company of its claim that the Company is a potentially responsible party for the remediation of hazardous materials allegedly discovered by that owner at the property.  The Company had also been contacted by the DTSC in connection with that 2010 notice.  Separately, in July 2012, the Company received notice from a subsequent owner of that property seeking reimbursement of investigation costs and increased construction costs allegedly resulting from the presence of hazardous materials at the property.  The Company intends to vigorously defend against all of the claims asserted by the various parties in respect of the property.

During negotiations for the Company’s April 2007 divestiture of the Company’s Power Control Systems business to Vishay Intertechnology, Inc., certain chemical compounds were discovered in the groundwater underneath one of the Company's former manufacturing plants in Italy, and the Company advised appropriate governmental authorities at about the time of such divestiture. In August 2010, the Company received a letter from the relevant local authority requiring a confirmation of intention to proceed with preparation of a plan of characterization in relation to the site in question. The Company has restated to local authorities its prior position from the period following such divestiture that it had not committed to take further action with respect to the site. In October 2012, local authorities contacted the current site owner suggesting that additional groundwater testing should take place and testing was initiated prior to the close of calendar year 2012. The Company has not been assessed any penalties with respect to the site, and it is too early to assess whether any such penalties will be assessed or other regulatory actions may be taken in the future.

In November 2007, the Company was named as one of approximately 100 defendants in Angeles Chemical Company, Inc. et al. v. Omega Chemical PRP Group, LLC et al., No. EDCV07-1471 (TJH) (JWJx) (C.D. Cal.) (the "Angeles Case"). Angeles Chemical Company, Inc. and related entities ("Plaintiffs") own or operate a facility (the "Angeles Facility") which is located approximately 1.5 miles down gradient of the Omega Chemical Superfund Site (the "Omega Site") in Whittier, California. Numerous parties, including the Company, allegedly disposed of wastes at the Omega Site. Plaintiffs claim that contaminants from the Omega Site migrated in groundwater from the Omega Site to the Angeles Facility, thereby causing damage to the Angeles Facility. In addition, they claim that the United States Environmental Protection Agency ("EPA") considers them to be responsible for the groundwater plume near the Angeles Facility, which Plaintiffs contend was caused by disposal activities at the Omega Site. Plaintiffs filed claims based on the Comprehensive Environmental Response, Compensation and Liability Act ("CERCLA"), nuisance and trespass, and also seek declaratory relief. Plaintiffs seek to require the defendants to investigate and clean-up the contamination and to recover damages. The case has been stayed by the court pending the Environmental Protection Agency's completion of its remedial investigation. The Company previously entered into a settlement with other parties associated with the Omega Site pursuant to which the Company paid those entities money in exchange for an agreement to defend and indemnify the Company with regard to certain environmental claims (the "Omega Indemnification"). In that agreement, it was estimated that the Company's volumetric share of wastes sent to the Omega Site was in the range of 0.08 percent. The Company believes that much, if not all, of the risks associated with the Angeles Case should be covered by the Omega Indemnification. In addition, the Company has tendered the complaint to several of its insurance carriers, one of which has agreed to defend under a reservation of rights. Therefore, the Company does not expect its out-of-pocket defense costs to be significant. In addition, in light of the Omega Indemnification, the potential for insurance coverage and the fact that its volumetric share of Omega Site wastes was less than 0.1 percent, the Company does not believe that an adverse judgment against the Company would be material.

International Rectifier Corporation ("IR") and Rachelle Laboratories, Inc. ("Rachelle"), a subsidiary of the Company that discontinued operations in 1986, were each named a potentially responsible party ("PRP") in connection with the investigation by the EPA of the disposal of allegedly hazardous substances at a major superfund site in Monterey Park, California ("OII Site"). Certain PRPs who settled certain claims with the EPA under consent decrees filed suit in Federal Court in May 1992 against a number of other PRPs, including IR, for cost recovery and contribution under the provisions of the CERCLA. The Company has settled all outstanding claims that have arisen against IR relating to the OII Site. No claims against Rachelle have been settled. The Company has taken the position that none of the wastes generated by Rachelle were hazardous. Counsel for Rachelle received a letter dated August 2001 from the U.S. Department of Justice, directed to all or substantially all PRPs for the OII Site, offering to settle claims against such parties for all work performed through and including the final remedy for the OII Site. The offer required a payment from Rachelle in the amount of approximately $9.3 million in order to take advantage of the settlement. Rachelle did not accept the offer.

It remains the position of Rachelle that its wastes were not hazardous. In addition, Rachelle operated as an independent corporation and the Company did not believe that a complaining party would be successful in reaching the assets of IR even if it could prevail on a claim against Rachelle. Because Rachelle has not been sued, none of the Company’s insurers has accepted liability, although at least one of the Company’s insurers previously reimbursed IR for defense costs for the lawsuit filed against IR.

The Company received a letter in June 2001 from a law firm representing UDT Sensors, Inc. ("UDT") relating to environmental contamination (chlorinated solvents such as trichlorethene) purportedly found in UDT's properties in Hawthorne, California. The letter alleges that the Company operated a manufacturing business at that location in the 1970's and/or 1980's and that it may have liability in connection with the claimed contamination. The Company has made no accrual for any potential losses since there has been no assertion of specific facts on which to form the basis for determination of liability.

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Asset Impairment, Restructuring and Other Charges (Recoveries) (Tables)

6 Months Ended

Dec. 29, 2013

Restructuring and Related Activities [Abstract]

Asset Impairment, Restructuring and Other Charges (Recoveries)

The following tables summarize the total asset impairment, restructuring and other charges (recoveries) by initiative for the three and six months endedDecember 29, 2013 and December 23, 2012 (in thousands):

	Three Months Ended
Fiscal Year 2013 Initiatives	December 29, 2013
	El Segundo Fabrication Facility Closure Initiative			Newport Fabrication Facility Resizing Initiative		Other Cost Reduction Activities Initiative		Total
Reported in asset impairment, restructuring and other charges:
Asset impairment	$	—		$	—	$	—	$	—
Severance and workforce reduction costs (recoveries)	(9		)	—		—		(9		)
Decommissioning costs	—			93		—		93
Relocation and re-qualification costs	—			931		—		931
Total asset impairment, restructuring and other charges (recoveries)	$	(9	)	$	1,024	$	—	$	1,015

	Three Months Ended
Fiscal Year 2013 Initiatives	December 23, 2012
	El Segundo Fabrication Facility Closure Initiative		Newport Fabrication Facility Resizing Initiative		Other Cost Reduction Activities Initiative		Total
Reported in asset impairment, restructuring and other charges:
Asset impairment	$	178	$	666	$	1,062	$	1,906
Severance and workforce reduction costs	170		597		1,509		2,276
Decommissioning costs	—		55		—		55
Relocation and re-qualification costs	210		494		—		704
Total asset impairment, restructuring and other charges	$	558	$	1,812	$	2,571	$	4,941

	Six Months Ended
Fiscal Year 2013 Initiatives	December 29, 2013
	El Segundo Fabrication Facility Closure Initiative			Newport Fabrication Facility Resizing Initiative		Other Cost Reduction Activities Initiative		Total
Reported in asset impairment, restructuring and other charges:
Asset impairment	$	—		$	—	$	—	$	—
Severance and workforce reduction costs (recoveries)	(22		)	141		—		119
Decommissioning costs	—			177		—		177
Relocation and re-qualification costs	4			2,117		—		2,121
Total asset impairment, restructuring and other charges (recoveries)	$	(18	)	$	2,435	$	—	$	2,417

	Six Months Ended
Fiscal Year 2013 Initiatives	December 23, 2012
	El Segundo Fabrication Facility Closure Initiative		Newport Fabrication Facility Resizing Initiative		Other Cost Reduction Activities Initiative		Total
Reported in asset impairment, restructuring and other charges:
Asset impairment	$	178	$	666	$	1,062	$	1,906
Severance and workforce reduction costs	5,857		597		4,788		11,242
Decommissioning costs	—		55		—		55
Relocation and re-qualification costs	210		494		—		704
Total asset impairment, restructuring and other charges	$	6,245	$	1,812	$	5,850	$	13,907

Accrued Severance and Workforce Reduction Costs

The following table summarizes changes in the Company's restructuring related accruals related to its fiscal year 2013 initiatives for the six months endedDecember 29, 2013, which are included in accrued salaries, wages, and commissions on the balance sheet (in thousands):

Fiscal Year 2013 Initiatives	El Segundo Fabrication Facility Closure Initiative			Newport Fabrication Facility Resizing Initiative			Other Cost Reduction Activities Initiative		Total
Accrued severance and workforce reduction costs at June 30, 2013	$	197		$	—		$	—	$	197
Accrued (recovered) during the period and charged to asset impairment, restructuring and other charges	(22		)	141			—		119
Costs paid during the period	(31		)	(141		)	—		(172		)
Accrued severance and workforce reduction costs at December 29, 2013	$	144		$	—		$	—	$	144

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Stock Repurchase Program

6 Months Ended

Dec. 29, 2013

Stock Repurchase Program [Abstract]

Stock Repurcahse Program

Stock Repurchase Program

The Company’s stock repurchase program authorizes it to repurchase up to $150.0 million of shares of the Company's outstanding common stock. Stock repurchases under this program may be made in the open market or through privately negotiated transactions. The timing and actual number of shares repurchased depend on market conditions and other factors. The stock repurchase program may be suspended at any time without prior notice. All of the shares repurchased by the Company through the program were purchased in open market transactions. The Company has used and plans to continue to use existing cash to fund the repurchases.

During the six months endedDecember 29, 2013, the Company did not repurchase any shares under the stock repurchase program. To date the Company has purchased approximately 6.2 million shares for approximately $113.2 million under the program. As of December 29, 2013, the Company had not canceled the repurchased shares of common stock, and as such, they are reflected as treasury stock in the December 29, 2013 and June 30, 2013 condensed consolidated balance sheets.

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Business, Basis of Presentation and Summary of Significant Accounting Policies

6 Months Ended

Dec. 29, 2013

Business, Basis of Presentation and Summary of Significant Accounting Policies [Abstract]

Business, Basis of Presentation and Summary of Significant Accounting Policies

Business, Basis of Presentation and Summary of Significant Accounting Policies

Business

International Rectifier Corporation ("IR" or the "Company") designs, manufactures and markets power management semiconductors.  Power management semiconductors address the core challenges of power management, power performance and power conservation, by increasing system efficiency, allowing more compact end-products, improving features on electronic devices and prolonging battery life.

Power semiconductors convert raw power from an electrical outlet, a battery, an alternator running off an internal combustion engine, a hybrid electric vehicle ("HEV") or electric vehicle ("EV"), or other renewable energy sources into more efficient and useful power for a wide range of electrical and electronic systems and equipment. The more sophisticated the end product, the greater the need for specially-formatted, finely-regulated power. The importance of power semiconductor technology rises with the increasing complexity of electronic products and the worldwide proliferation of electronic features in information technology, industrial, consumer, aerospace and defense and automotive products.

With the increasing demand for energy usage worldwide and generally rising energy costs, governments, businesses, and consumers alike are striving to conserve energy and demand more efficient uses of power in all types of electronic products including computers, appliances, military aircraft, and hybrid cars. The information technology, industrial, computing, consumer, high reliability and automobile industries use power management semiconductors to promote energy efficiency and improve product and device performance metrics.  Power management semiconductors enable energy savings by delivering the power tailored for a particular electrical device, rather than delivering a constant stream of power.

The Company's products include power metal oxide semiconductor field effect transistors ("MOSFETs"), high voltage analog and mixed signal integrated circuits ("HVICs"), low voltage analog and mixed signal integrated circuits ("LVICs"), digital integrated circuits ("ICs"), radiation‑resistant ("RAD-Hard") power MOSFETs, insulated gate bipolar transistors ("IGBTs"), high reliability DC-DC converters, digital controllers, integrated power modules, and automotive product packages.

Basis of Presentation

The condensed consolidated financial statements have been prepared in accordance with the instructions for Form 10-Q pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC"), and therefore do not include all information and notes normally provided in audited financial statements prepared in accordance with U.S. generally accepted accounting principles ("GAAP"). The condensed consolidated financial statements include the accounts of the Company and its subsidiaries, which are located in North America, Europe and Asia. Intercompany balances and transactions have been eliminated in consolidation.

In the opinion of management, all adjustments (consisting of normal recurring accruals and other adjustments) considered necessary for a fair presentation of the Company's results of operations, financial position, and cash flows have been included.  The results of operations for the interim periods presented are not necessarily comparable to the results of operations for any other interim period or indicative of the results that will be recorded for the full fiscal year ending June 29, 2014. These condensed consolidated financial statements and the accompanying notes should be read in conjunction with the Company's annual consolidated financial statements and the notes thereto included in the Company's Annual Report on Form 10-K for the fiscal year ended June 30, 2013 filed with the SEC on August 20, 2013 (the "2013 Annual Report").

Fiscal Year and Quarter

The Company operates on a 52-53 week fiscal year with the fiscal year ending on the last Sunday in June. The three months ended December 2013 and 2012 each consisted of 13 weeks ending on December 29, 2013 and December 23, 2012, respectively. The six months ended December 2013 and 2012 each consisted of 26 weeks ending on December 29, 2013 and December 23, 2012, respectively. The current fiscal year will consist of 52 weeks and end on June 29, 2014.

Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported revenues and expenses during the reporting period. Actual results may differ from those estimates.

Fair Value Measurements

Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Assets and liabilities measured at fair value are categorized based on whether or not the inputs are observable in the market and the degree that the inputs are observable. The categorization of financial assets and liabilities within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The hierarchy is broken down into three levels, defined as follows:

• Level 1—Inputs are based on quoted market prices for identical assets or liabilities in active markets at the measurement date.

• Level 2—Inputs include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, and inputs (other than quoted prices) that are observable for the asset or liability, either directly or indirectly.

• Level 3—Inputs include management's best estimate of what market participants would use in pricing the asset or liability at the measurement date. The inputs are unobservable in the market and significant to the valuation.

The financial assets and liabilities which are measured and recorded at fair value on a recurring basis are included within the following items on the Company’s consolidated balance sheet as of December 29, 2013 and June 30, 2013 (in thousands):

	As of December 29, 2013
Assets and Liabilities:	Total			Level 1			Level 2			Level 3
Short-term investments	$	5,001		$	5,001		$	—		$	—
Other assets	38,656			36,726			—			1,930
Other accrued expenses	(10		)	—			(10		)	—
Other long-term liabilities	(9,370		)	(9,370		)	—			—
Total	$	34,277		$	32,357		$	(10	)	$	1,930

	As of June 30, 2013
Assets and Liabilities:	Total			Level 1			Level 2		Level 3
Short-term investments	$	11,056		$	6,004		$	5,052	$	—
Prepaid expenses and other current assets	19			—			19		—
Other assets	29,725			26,837			—		2,888
Other long-term liabilities	(8,326		)	(8,326		)	—		—
Total	$	32,474		$	24,515		$	5,071	$	2,888

The Company considers as cash and cash equivalents all investments that are highly liquid with an initial maturity of three months or less from the date of purchase.

The fair value of investments, derivatives, and other assets and liabilities are disclosed in Note 2, Note 3, and Note 9, respectively.

The Company determines at the end of the reporting period whether a given financial asset or liability is valued using Level 1, 2, or 3 inputs. During each of the three and six months endedDecember 29, 2013 and December 23, 2012, there were no transfers between Level 1, Level 2, and Level 3 assets and liabilities.  The Company records its foreign currency forward contracts at fair value using Level 2 inputs based on readily observable market parameters for all substantial terms.

Level 3 Valuations

The following tables provide a reconciliation of the beginning and ending balance of items measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the three months ended December 29, 2013 and December 23, 2012 (in thousands):

	Level 3
	Assets
	Derivatives
Beginning balance at September 29, 2013	$	2,563
Total losses (realized or unrealized) included in other expense, net	(633		)
Ending balance at December 29, 2013	$	1,930

	Level 3
	Assets
	Derivatives
Beginning balance at September 23, 2012	$	2,920
Total gains (realized or unrealized) included in other expense, net	116
Ending balance at December 23, 2012	$	3,036

The following tables provide a reconciliation of the beginning and ending balance of items measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the six months endedDecember 29, 2013 and December 23, 2012 (in thousands):

	Level 3
	Assets
	Derivatives
Beginning balance at June 30, 2013	$	2,888
Total losses (realized or unrealized) included in other expense, net	(958		)
Ending balance at December 29, 2013	$	1,930

	Level 3
	Assets
	Derivatives
Beginning balance at June 24, 2012	$	2,834
Total gains (realized or unrealized) included in other expense, net	202
Ending balance at December 23, 2012	$	3,036

When at least one significant valuation model assumption or input used to measure the fair value of financial assets or liabilities is unobservable in the market, they are deemed to be measured using Level 3 inputs. These Level 3 inputs may include pricing models, discounted cash flow methodologies or similar techniques where at least one significant model assumption or input is unobservable. The Company uses Level 3 inputs to value a non-transferable put option on a strategic investment (the “Put Option”).

The Company accounts for the Put Option as a derivative instrument not designated as an accounting hedge. The fair value was determined using the Black-Scholes option pricing model. The model uses inputs such as exercise price, fair market value of the underlying common stock, expected life (years), expected volatility, risk-free rate equivalent, and dividend yield. The expected life is the remaining life of the Put Option. Expected volatility is based on historical volatility of the underlying common stock. As of December 29, 2013, the Company determined that significant changes in the above assumptions would not materially affect the fair value of the Put Option. Additionally, the model relies on the material assumption that the issuer of the Put Option will uphold its financial obligation up to its common equity value should the Company exercise the Company’s right to put the associated number of common shares back to the issuer at a fixed price in local currency.

Non-Recurring Fair Value Measurements

During the three and six months endedDecember 29, 2013, the Company did not record any other-than-temporary impairments on financial assets required to be measured at fair value on a nonrecurring basis. For the three months ended December 23, 2012, the Company measured at fair value, on a non-recurring basis, the carrying values of certain of its equipment in its research and development group, as well as its Newport, Wales, and Mexico manufacturing facilities due to the non-use of that equipment. The Company determined that the carrying values of those assets of $8.7 million exceeded their estimated fair values of $4.0 million. The fair values were determined using the market approach, which considered the estimated fair value of the equipment using significant unobservable inputs (Level 3) obtained from third party equipment brokerage firms. Consequently, during the three and six months endedDecember 23, 2012, the Company recorded an impairment charge of $4.7 million, which represented the excess of the carrying values of the assets over the fair values, less the estimated cost to sell.

Adoption of Recent Accounting Standards

In February 2013, the FASB issued ASC update No. 2013-02, “Comprehensive Income (Topic 220), Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income” (ASC 2013-02). This update requires companies to provide information about the amounts reclassified out of accumulated other comprehensive income by component. In addition, a company is required to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income but only if the amount reclassified is required under GAAP to be reclassified to net income in its entirety in the same reporting period. The amendments in this update are effective for fiscal years and interim periods within those years beginning after December 15, 2012. The adoption of this update did not have a material impact on the Company's financial statements, and additional disclosure pursuant to this update is presented in Note 10.

Recent Accounting Standards

In July 2013, the FASB issued ASC update No. 2013-11, "Income Taxes (Topic 740), Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists" (ASU 2013-11). Under the amendments in this update, an unrecognized tax benefit, or a portion of an unrecognized tax benefit, should be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward, except as follows. To the extent a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date under the tax law of the applicable jurisdiction to settle any additional income taxes that would result from the disallowance of a tax position or the tax law of the applicable jurisdiction does not require the entity to use, and the entity does not intend to use, the deferred tax asset for such purpose, the unrecognized tax benefit should be presented in the financial statements as a liability and should not be combined with deferred tax assets. The assessment of whether a deferred tax asset is available is based on the unrecognized tax benefit and deferred tax asset that exist at the reporting date and should be made presuming disallowance of the tax position at the reporting date. The amendments in this update are effective for fiscal years and interim periods within those years beginning after December 15, 2013. The Company does not believe that adoption of this update will have a material impact on its financial statements.

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Statement (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 29, 2013	Dec. 23, 2012	Dec. 29, 2013	Dec. 23, 2012
Statement of Other Comprehensive Income [Abstract]
Net income (loss)	$ 17,921	$ (32,722)	$ 26,644	$ (61,497)
Other Comprehensive Income, net of tax: [Abstract]
Foreign currency translation adjustments, net of tax effect of $0 for all periods presented	5,187	(601)	20,365	10,631
Unrealized gains (losses) on securities: [Abstract]
Unrealized holding gains (losses) on available-for-sale securities, net of tax effect of $0 for all periods presented	5,937	1,367	9,089	(1,837)
Other comprehensive income	11,124	766	29,454	8,794
Comprehensive Income (loss)	$ 29,045	$ (31,956)	$ 56,098	$ (52,703)

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Stock-Based Compensation

6 Months Ended

Dec. 29, 2013

Compensation and Retirement Disclosure [Abstract]

Stock-Based Compensation

Stock‑Based Compensation

The Company issues new shares to fulfill the obligations under all of its stock‑based compensation awards.  Such shares are subject to registration under applicable securities laws, including the rules and regulations promulgated by the SEC, unless an applicable exemption applies.

During the six months endedDecember 29, 2013, the Company granted an aggregate of 4,000 stock options to Company employees under its 2011 Performance Incentive Plan (the "2011 Plan").  Subject to the terms and conditions of the 2011 Plan and applicable award documentation, such awards generally vest and become exercisable in equal installments over each of the first three anniversaries of the date of grant, with a maximum award term of five years.

The following table summarizes the stock option activity for the six months endedDecember 29, 2013 (in thousands, except per share price data):

	Stock Option Shares		Weighted Average Option Exercise Price per Share		Weighted Average Grant Date Fair Value per Share		Aggregate Intrinsic Value
Outstanding, June 30, 2013	1,187		$	17.08			$	4,978
Granted	4		$	24.76	$	6.82
Exercised	(673	)	$	16.19			$	5,330
Expired or forfeited	(5	)	$	16.83
Outstanding, December 29, 2013	513		$	18.31			$	3,919

For the six months endedDecember 29, 2013 and December 23, 2012, the Company received proceeds of $10.9 million and $1.0 million, respectively, as a result of the exercise of stock options issued under its stock based compensation plans. There were no tax benefits realized from issuance of stock-based awards for each of the three and six months endedDecember 29, 2013 and December 23, 2012.

During the six months endedDecember 29, 2013, the Company granted 25,050 Restricted Stock Units ("RSUs") to employees, and 43,704 RSUs to members of the Board of Directors (the "Board"), in each case under the 2011 Plan. The RSUs provided for vesting over a period of service, subject to the terms and conditions of the 2011 Plan and the applicable award documentation. For the RSU awards made to employees, the vesting of awards generally takes place in equal installments over each of the first three anniversaries of the date of grant.The RSU awards made to members of the Board were made as part of the Board’s annual director compensation program, under which the vesting of RSU awards takes place generally on the first anniversary of the date of grant.

The following table summarizes the RSU activity for the six months endedDecember 29, 2013 (in thousands, except per share price data):

	Restricted Stock Units		Weighted Average  Grant Date Fair Value Per Share		Aggregate Intrinsic Value
Outstanding, June 30, 2013	3,696		$	21.31	$	77,394
Granted	69		$	24.73
Vested	(215	)	$	18.99	$	4,901
Expired or forfeited	(94	)	$	22.08
Outstanding, December 29, 2013	3,456		$	21.51	$	88,288

The Company's stock-based compensation plans permit the reduction of a participant’s RSUs for purposes of settling a participant’s income tax withholding obligation. During the six months endedDecember 29, 2013, the Company withheld RSUs representing 52,516 underlying shares to fund participant income tax withholding obligations.

Additional information relating to the Company’s stock based compensation plans, including employee stock options and RSUs at December 29, 2013 and June 30, 2013 is as follows (in thousands):

	December 29, 2013	June 30, 2013
Outstanding options exercisable	377	1,039
Options and RSUs available for grant	6,079	6,040
Total reserved common stock shares for stock option plans	10,048	10,923

Forfeitures are estimated at the time of grant. Based on the Company’s historical exercise and termination data, a four percent forfeiture rate is assumed for the majority of the options and RSUs.

For the three and six months endedDecember 29, 2013 and December 23, 2012, stock‑based compensation expense associated with the Company’s stock options and RSUs was as follows (in thousands):

	Three Months Ended				Six Months Ended
	December 29, 2013		December 23, 2012		December 29, 2013		December 23, 2012
Cost of sales	$	1,362	$	1,123	$	2,610	$	2,281
Selling, general and administrative expense	3,123		2,858		6,650		6,018
Research and development expense	2,142		1,397		4,229		2,818
Total stock‑based compensation expense	$	6,627	$	5,378	$	13,489	$	11,117

The total unrecognized compensation expense for outstanding stock options and RSUs was $39.8 million as of December 29, 2013. The weighted average number of years to recognize the total compensation expense for stock options and RSUs are 1.8 and 1.7, respectively.

The fair value of the stock options associated with the above compensation expense for the six months endedDecember 29, 2013 and December 23, 2012 was determined at the grant date using the Black‑Scholes option pricing model with the following weighted average assumptions:

	December 29, 2013		December 23, 2012
Expected life	3.5 years		3.5 years
Risk free interest rate	0.70	%	0.36	%
Volatility	36.37	%	39.30	%
Dividend yield	0.00	%	0.00	%

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Document and Entity Information (USD $)	6 Months Ended
	Dec. 29, 2013	Jan. 22, 2014
Document and Entity Information [Abstract]
Entity Registrant Name	International Rectifier Corp /DE/
Entity Central Index Key	0000316793
Current Fiscal Year End Date	--06-29
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float	$ 1,803,600,677
Entity Common Stock, Shares Outstanding		71,255,116
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q2
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Dec. 29, 2013

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Asset Impairment, Restructuring and Other Charges (Recoveries)

6 Months Ended

Dec. 29, 2013

Restructuring and Related Activities [Abstract]

Asset Impairment, Restructuring, and Other Charges

Asset Impairment, Restructuring and Other Charges (Recoveries)

Asset impairment, restructuring and other charges reflect the impact of certain cost reduction programs and initiatives implemented by the Company. These programs and initiatives include the closing of facilities, the termination of employees and other related activities. Asset impairment, restructuring and other charges include program-specific exit costs, severance benefits pursuant to an ongoing benefit arrangement, and special termination benefits. Severance costs unrelated to the Company's restructuring initiatives are recorded as an element of cost of sales, research and development (“R&D”) or selling, general and administrative expense (“SG&A”), depending upon the classification and function of the employment position terminated. Restructuring costs are expensed during the period in which all requirements of recognition are met.

Asset write-downs are principally related to facilities and equipment that will not be used subsequent to the completion of exit or downsizing activities being implemented, and cannot be sold for amounts in excess of carrying value. In determining the asset groups for the purpose of calculating write-downs, the Company groups assets at the lowest level for which identifiable cash flows are largely independent of the cash flows of other assets and liabilities. In determining whether an asset is impaired, the Company evaluates estimated undiscounted future cash flows and other factors such as changes in strategy and technology. An impairment loss exists if the estimated undiscounted future cash flows are less than the carrying amount of the asset group. The Company then determines the fair value of the asset group by discounting the estimated future cash flows, consistent with the cash flows of a market participant, at a discount rate that is used when analyzing potential acquisitions. The Company then compares the fair value of the asset group with the carrying amount of the asset group and writes down the carrying amount of the asset group to its fair value.

During the first quarter of fiscal year 2013, the Company announced a restructuring plan to modify its manufacturing strategy and lower its operating expenses in order to align its cost structure with business conditions. As part of the plan, the Company has incurred and expects to further incur costs recorded in asset impairment, restructuring and other charges related primarily to the following:

• Fiscal Year 2013 El Segundo Fabrication Facility Closure Initiative

• Fiscal Year 2013 Newport Fabrication Facility Resizing Initiative

• Fiscal Year 2013 Other Cost Reduction Activities Initiative (completed in fiscal year 2013)

The following tables summarize the total asset impairment, restructuring and other charges (recoveries) by initiative for the three and six months endedDecember 29, 2013 and December 23, 2012 (in thousands):

	Three Months Ended
Fiscal Year 2013 Initiatives	December 29, 2013
	El Segundo Fabrication Facility Closure Initiative			Newport Fabrication Facility Resizing Initiative		Other Cost Reduction Activities Initiative		Total
Reported in asset impairment, restructuring and other charges:
Asset impairment	$	—		$	—	$	—	$	—
Severance and workforce reduction costs (recoveries)	(9		)	—		—		(9		)
Decommissioning costs	—			93		—		93
Relocation and re-qualification costs	—			931		—		931
Total asset impairment, restructuring and other charges (recoveries)	$	(9	)	$	1,024	$	—	$	1,015

	Three Months Ended
Fiscal Year 2013 Initiatives	December 23, 2012
	El Segundo Fabrication Facility Closure Initiative		Newport Fabrication Facility Resizing Initiative		Other Cost Reduction Activities Initiative		Total
Reported in asset impairment, restructuring and other charges:
Asset impairment	$	178	$	666	$	1,062	$	1,906
Severance and workforce reduction costs	170		597		1,509		2,276
Decommissioning costs	—		55		—		55
Relocation and re-qualification costs	210		494		—		704
Total asset impairment, restructuring and other charges	$	558	$	1,812	$	2,571	$	4,941

	Six Months Ended
Fiscal Year 2013 Initiatives	December 29, 2013
	El Segundo Fabrication Facility Closure Initiative			Newport Fabrication Facility Resizing Initiative		Other Cost Reduction Activities Initiative		Total
Reported in asset impairment, restructuring and other charges:
Asset impairment	$	—		$	—	$	—	$	—
Severance and workforce reduction costs (recoveries)	(22		)	141		—		119
Decommissioning costs	—			177		—		177
Relocation and re-qualification costs	4			2,117		—		2,121
Total asset impairment, restructuring and other charges (recoveries)	$	(18	)	$	2,435	$	—	$	2,417

	Six Months Ended
Fiscal Year 2013 Initiatives	December 23, 2012
	El Segundo Fabrication Facility Closure Initiative		Newport Fabrication Facility Resizing Initiative		Other Cost Reduction Activities Initiative		Total
Reported in asset impairment, restructuring and other charges:
Asset impairment	$	178	$	666	$	1,062	$	1,906
Severance and workforce reduction costs	5,857		597		4,788		11,242
Decommissioning costs	—		55		—		55
Relocation and re-qualification costs	210		494		—		704
Total asset impairment, restructuring and other charges	$	6,245	$	1,812	$	5,850	$	13,907

In addition to the amounts in the tables above, other charges related to the restructuring initiatives recorded in cost of sales were $0.7 million and $1.1 million for the three and six months endedDecember 29, 2013, respectively, and $0.4 million and $1.3 million for the three and six months endedDecember 23, 2012, respectively. These charges, which were primarily for accelerated depreciation, are not classifiable as restructuring costs, and were recorded in cost of sales.

The following table summarizes changes in the Company's restructuring related accruals related to its fiscal year 2013 initiatives for the six months endedDecember 29, 2013, which are included in accrued salaries, wages, and commissions on the balance sheet (in thousands):

Fiscal Year 2013 Initiatives	El Segundo Fabrication Facility Closure Initiative			Newport Fabrication Facility Resizing Initiative			Other Cost Reduction Activities Initiative		Total
Accrued severance and workforce reduction costs at June 30, 2013	$	197		$	—		$	—	$	197
Accrued (recovered) during the period and charged to asset impairment, restructuring and other charges	(22		)	141			—		119
Costs paid during the period	(31		)	(141		)	—		(172		)
Accrued severance and workforce reduction costs at December 29, 2013	$	144		$	—		$	—	$	144

Fiscal Year 2013 El Segundo Fabrication Facility Closure Initiative

During fiscal year 2013, the Company adopted a restructuring plan to close its El Segundo wafer fabrication facility. The closure took place in March 2013. During each of the three and six months endedDecember 29, 2013, the Company incurred de minimis asset impairment, restructuring and other charges (recoveries). The Company incurred asset impairment, restructuring and other charges of $0.6 million and $6.2 million during the three and six months endedDecember 23, 2012, respectively. In connection with the plan, the Company estimates total pre-tax costs of $6.5 million. The estimated total costs consist of $5.9 million of severance and workforce reduction costs, $0.4 million of relocation and re-qualification costs, and $0.2 million of asset impairment costs.

In addition to the restructuring charges above, the Company recorded $0.4 million and $1.3 million of other charges related to the restructuring initiative in cost of sales for the three and six months endedDecember 23, 2012, respectively. These other charges, which were for accelerated depreciation and inventory write-downs, are not classifiable as restructuring costs, and affected the Energy Saving Products reporting segment. The Company recorded no such charges during each of the three and six months endedDecember 29, 2013.

During each of the three and six months endedDecember 29, 2013, the Company made de minimis cash payments for this initiative. During the three and six months endedDecember 23, 2012, cash payments for this initiative were $1.6 million and $2.4 million, respectively. Remaining cash payments are estimated to be approximately $0.2 million through June 2015.

In addition, the Company estimates it will make total cash expenditures of $2.5 million for the decommissioning and restoration of the El Segundo wafer fabrication facility. These costs were previously considered as part of the asset impairment of the facility recorded in the fourth quarter of fiscal year 2012, and are not anticipated to result in additional restructuring charges.

Fiscal Year 2013 Newport Fabrication Facility Resizing Initiative

During fiscal year 2013, the Company adopted a restructuring plan to resize its wafer fabrication facility in Newport, Wales. The resizing of the facility is planned to take place in several phases, and is expected to be completed by the middle of calendar year 2015. The Company incurred $1.0 million and $2.4 million of asset impairment, restructuring and other charges for the three and six months endedDecember 29, 2013, respectively. The Company incurred $1.8 million of asset impairment, restructuring and other charges for each of the three and six months endedDecember 23, 2012. In connection with the plan, the Company estimates total pre-tax costs of approximately $16.5 million. These consist of approximately $0.7 million of asset impairment costs, $3.2 million of severance and workforce reduction costs, $5.7 million of decommissioning costs, and $6.9 million of relocation and re-qualification costs.

In addition to the restructuring charges above, the Company recorded $0.6 million and $1.1 million of other charges related to the restructuring initiative in cost of sales for the three and six months endedDecember 29, 2013, respectively. These other charges, which were for accelerated depreciation, are not classifiable as restructuring costs. The Company recorded no such charges during each of the three and six months endedDecember 23, 2012.

Cash payments for this initiative were $1.2 million and $2.4 million for the three and six months endedDecember 29, 2013, respectively, and $1.1 million for each of the three and six months endedDecember 23, 2012. Remaining cash payments are estimated to be approximately $10.0 million for the remainder of the initiative.

Fiscal Year 2013 Other Cost Reduction Activities Initiative

During fiscal year 2013, the Company completed all actions for this initiative. These actions included reducing (i) capacity at manufacturing facilities in Mexico, California, and Arizona, and (ii) administrative and research and development costs around the world. As part of the plan, the Company incurred approximately $1.5 million and $4.8 million of severance and workforce reduction costs during the three and six months endedDecember 23, 2012, respectively. The severance and workforce reduction costs recorded during the three months ended December 23, 2012 included $0.6 million for research and development functions, $0.5 million for manufacturing functions, and $0.4 million for general and administrative functions. During the six months endedDecember 23, 2012, severance and workforce reduction costs included $2.6 million related to manufacturing functions, and $1.1 million for general and administrative functions, and $1.1 million for research and development functions.

During each of the three and six months endedDecember 23, 2012, the Company incurred $1.1 million of asset impairment costs for the planned disposition of certain manufacturing equipment related to its manufacturing facility in Mexico. During the three and six months endedDecember 23, 2012, cash payments for this initiative were $1.9 million and $3.8 million, respectively.

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 29, 2013	Dec. 23, 2012	Dec. 29, 2013	Dec. 23, 2012
Statement of Other Comprehensive Income [Abstract]
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax	$ 0	$ 0	$ 0	$ 0
Unrealized gains (losses) on securities: [Abstract]
Tax effect of unrealized holding gains (losses) on available-for-sale securities	$ 0	$ 0	$ 0	$ 0

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Goodwill and Acquisition-Related Intangible Assets

6 Months Ended

Dec. 29, 2013

Goodwill and Acquisition Related Intangible Assets [Abstract]

Goodwill and Acquisition-Related Intangible Assets

Goodwill and Acquisition-Related Intangible Assets

At December 29, 2013 and June 30, 2013, acquisition‑related intangible assets included the following (in thousands):

		December 29, 2013
	Amortization Periods (Years)	Gross Carrying Amount		Accumulated Amortization			Net
Completed technology	4 - 12	$	52,045	$	(41,467	)	$	10,578
Customer lists	5 - 12	10,430		(7,738		)	2,692
Intellectual property and other	2 - 15	16,763		(11,370		)	5,393
Total acquisition‑related intangible assets		$	79,238	$	(60,575	)	$	18,663

		June 30, 2013
	Amortization Periods (Years)	Gross Carrying Amount		Accumulated Amortization			Net
Completed technology	4 - 12	$	52,045	$	(39,163	)	$	12,882
Customer lists	5 - 12	10,430		(7,313		)	3,117
Intellectual property and other	2 - 15	16,763		(10,839		)	5,924
Total acquisition‑related intangible assets		$	79,238	$	(57,315	)	$	21,923

As of December 29, 2013, the following table represents the total estimated amortization of intangible assets for the remainder of fiscal year 2014 and the five succeeding fiscal years (in thousands):

			Fiscal Year
	Total		2014		2015		2016		2017		2018		2019 and thereafter
Estimated amortization expense	$	18,663	$	3,160	$	6,220	$	4,681	$	1,463	$	897	$	2,242

Goodwill

The Company evaluates the carrying value of goodwill annually during the fourth quarter of each fiscal year and more frequently if it believes indicators of impairment exist.  In evaluating goodwill, a two-step goodwill impairment test is applied to each reporting unit.  The Company identifies reporting units and determines the carrying value of each reporting unit by assigning the assets and liabilities, including the existing goodwill, to those reporting units.  In the first step of the impairment test, the Company estimates the fair value of the reporting unit.  If the fair value of the reporting unit is less than the carrying value of the reporting unit, the Company performs the second step which compares the implied fair value of the reporting unit with the carrying amount of the reporting unit and writes down the carrying amount of the goodwill to the implied fair value.

At December 29, 2013 and June 30, 2013, the carrying amount of goodwill by reportable segment was as follows (in thousands):

Business Segments:	December 29, 2013		June 30, 2013
Energy Saving Products	$	33,190	$	33,190
HiRel	18,959		18,959
Total goodwill	$	52,149	$	52,149

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Inventories

6 Months Ended

Dec. 29, 2013

Inventories [Abstract]

Inventories

Inventories

At December 29, 2013 and June 30, 2013, inventories were comprised of the following (in thousands):

	December 29, 2013		June 30, 2013
Raw materials	$	56,370	$	58,471
Work-in-process	113,912		97,158
Finished goods	77,458		76,686
Total inventories	$	247,740	$	232,315

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Litigation

6 Months Ended

Dec. 29, 2013

Loss Contingency, Information about Litigation Matters [Abstract]

Litigation

Litigation

Angeles. v. Omega.  See Note 16, "Environmental Matters."

In addition to the above, the Company is involved in certain legal matters that arise in the ordinary course of business. The Company intends to pursue its rights and defend against any claims brought by third parties vigorously. However, because of the nature and inherent uncertainties of litigation, should the outcome of these actions be unfavorable, the Company's business, financial condition, results of operations or cash flows could be materially and adversely affected.

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Segment Information

6 Months Ended

Dec. 29, 2013

Segment Reporting [Abstract]

Segment Information

Segment Information

The Company reports in six segments which correspond to the way the Company manages its business and interacts with customers. These reportable segments, which correspond to operating segments include:

Power Management Devices (“PMD”) - The PMD segment provides high performance power MOSFETs

with the widest range of packages up to 250V within the power management semiconductor industry for a range of applications including power supply, data processing, telecommunications, industrial, and commercial battery-powered systems. Key products used by the PMD segment include Trench HEXFET®MOSFETs, Discrete HEXFET®MOSFETs, Dual HEXFET®MOSFETs, FETKY®s, and DirectFET®s.

Energy Saving Products (“ESP”) - The ESP segment provides integrated design platforms that enable our customers to add energy-conserving features to help achieve lower operating energy and manufacturing costs. The integrated design platforms incorporate silicon packaging technology to help improve system performance. The ESP segment’s primary market applications include motor control appliances, industrial automation, lighting and display, audio and video. The ESP segment’s key products include analog HVICs and IGBT platforms, digital control ICs and IRAM integrated power modules. The ESP segment’s iMotion platform targets the growing trend towards variable speed motors in the appliance market.

Automotive Products (“AP”) - The AP segment provides high performance and energy saving solutions for a broad variety of automotive systems, ranging from typical 12V power net applications up to 1200V hybrid electric vehicle applications. The Company's automotive expertise includes supplying products for various automotive applications including AC and DC motor drives of all power classes, actuator drivers, automotive lighting (such as LED or high intensity discharge lamps), direct fuel injection for diesel and gasoline engines, hybrid electric vehicle power train and peripheral systems for micro, mid, full and plug-in hybrids for electric vehicles, as well as for body electronic systems like glow plugs, Positive Temperature Coefficient (“PTC”) heaters, electric power steering, fuel pumps, Heating Ventilation and Air Conditioning (“HVAC”) and rear wipers. The Company's automotive product designs are used in solutions, integrated circuits (“ASICs”) and standard parts (“ASSPs”) and generic high volume products for multiple original equipment manufacturer (“OEM”) platform usage. The AP segment's key products include HVICs, intelligent power switch ICs, power MOSFETs including DirectFET®, IGBTs, Diodes and advanced power modules.

Enterprise Power (“EP”) – The EP segment provides high performance analog and digital end-to-end power solutions for servers, storage, routers, switches, infrastructure equipment, notebooks, graphic cards, and gaming consoles. The large and growing server market has placed an emphasis and premium on power density, efficiency and performance. The Company sees this trend increasing in other EP segment target applications. The Company offers a broad portfolio of power management system products that deliver benchmark power density, efficiency and performance. The EP segment's key products include CHiL digital PWM controllers, PowIRstagesTM, SupIRBuckTM, DirectFET® discrete products, XPhase®, iPOWIR® voltage regulators, Low voltage ICs, and power monitoring products.

HiRel - The HiRel segment provides high-reliability power components and sub-assemblies designed to address power management requirements in mission critical applications including satellites and space exploration vehicles, military hardware, and other high reliability applications such as commercial aircraft, undersea telecommunications, and oil drilling in heavy industry, as well as products used in biomedical applications. The HiRel segment has a legacy of more than thirty years of experience in many of these applications, has developed strategic relationships with major system integrators worldwide and has the knowledge, technology and processes required to meet the requirements of customers in the high-reliability markets. The HiRel segment's key products include RAD-Hard discretes, RAD-Hard ICs, power management modules, DC-DC converters, high temperature converters, and energy storage and management systems.

Intellectual Property (“IP”) - The IP segment includes revenues from the sale of the Company’s technologies and manufacturing process know-how, in addition to the operating results of the Company’s patent licensing and settlements of claims brought against third parties. The Company continues, from time to time, to enter into opportunistic licensing arrangements that it believes are consistent with its business strategy.

The Company does not allocate assets, sales and marketing, information systems, finance and administrative costs and asset impairment, restructuring and other charges to the operating segments, as these are not meaningful statistics to the Chief Executive Officer ("CEO") in making resource allocation decisions or in evaluating performance of the operating segments. Because operating segments are generally defined by the products they design and sell, they do not make sales to each other.

The Company does not directly allocate assets to its operating segments, nor does the CEO evaluate operating segments using discrete asset information. However, depreciation and amortization related to the manufacturing of goods is included in gross profit for the segments as part of manufacturing overhead. Due to the Company’s methodology for product level costing, it is impractical to determine the amount of depreciation and amortization included in each segment’s gross profit.

The Company’s “Customer Segments” as referred to herein include its PMD, ESP, AP, EP and HiRel reporting segments.

For the three and six months endedDecember 29, 2013 and December 23, 2012, revenues and gross margin by reportable segments were as follows (in thousands, except percentages):

	Three Months Ended
	December 29, 2013						December 23, 2012
Business Segment	Revenues		Percentage of Total		Gross Margin		Revenues		Percentage of Total		Gross Margin
Power Management Devices	$	102,878	38.1	%	30.0	%	$	83,273	37.2	%	14.5	%
Energy Saving Products	46,589		17.3		31.5		36,174		16.2		14.8
Automotive Products	36,364		13.5		31.2		28,414		12.7		11.1
Enterprise Power	33,195		12.3		42.4		28,649		12.8		25.0
HiRel	50,665		18.8		52.6		47,061		21.0		44.7
Customer Segments Total	269,691		99.9		36.2		223,571		99.9		21.8
Intellectual Property	274		0.1		100.0		251		0.1		100.0
Consolidated Total	$	269,965	100.0	%	36.3	%	$	223,822	100.0	%	21.9	%

	Six Months Ended
	December 29, 2013						December 23, 2012
Business Segment	Revenues		Percentage of Total		Gross Margin		Revenues		Percentage of Total		Gross Margin
Power Management Devices	$	204,844	38.0	%	30.4	%	$	174,100	36.6	%	17.6	%
Energy Saving Products	97,086		18.0		32.2		80,629		16.9		14.4
Automotive Products	72,827		13.5		31.8		57,252		12.0		10.8
Enterprise Power	65,444		12.1		40.0		66,458		14.0		32.4
HiRel	98,998		18.3		50.3		95,477		20.0		50.2
Customer Segments Total	539,199		99.9		35.7		473,916		99.5		24.9
Intellectual Property	516		0.1		100.0		2,398		0.5		72.5
Consolidated Total	$	539,715	100.0	%	35.8	%	$	476,314	100.0	%	25.1	%

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Other Long-Term Liabilities

6 Months Ended

Dec. 29, 2013

Other Long-Term Liabilities [Abstract]

Other Long-Term Liabilities

Other Long-Term Liabilities

At December 29, 2013 and June 30, 2013, other long-term liabilities were comprised of the following (in thousands):

	December 29, 2013		June 30, 2013
Income taxes payable	$	3,346	$	12,344
Deferred compensation	11,012		9,903
Other	2,518		2,283
Total other long-term liabilities	$	16,876	$	24,530

Fair Value of Long-term Liabilities

The following tables present the long-term liabilities and the related assets measured at fair value on a recurring basis as of December 29, 2013 and June 30, 2013 (in thousands):

	December 29, 2013
	Total		Level 1		Level 2		Level 3
Employee deferred compensation plan liability	$	9,370	$	9,370	$	—	$	—
Assets of employee deferred compensation plan (reported in other assets)	10,225		10,225		—		—

	June 30, 2013
	Total		Level 1		Level 2		Level 3
Employee deferred compensation plan liability	$	8,326	$	8,326	$	—	$	—
Assets of employee deferred compensation plan (reported in other assets)	9,472		9,472		—		—

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Stock Repurchase Program (Details) (USD $) Share data in Millions, unless otherwise specified	6 Months Ended
	Dec. 29, 2013	Jun. 30, 2013
Stock Repurchase Program [Abstract]
Stock Repurchase Program, Authorized Amount	$ 150,000,000
Treasury Stock, Shares	6.2
Treasury Stock, Value	$ 113,175,000	$ 113,175,000	[1]

[1] Amounts derived from the audited financial statements at June 30, 2013

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Revolving Credit Facility and Bank Letters of Credit

6 Months Ended

Dec. 29, 2013

Other Liabilities Disclosure [Abstract]

Revolving Credit Facility and Bank Letters of Credit

Revolving Credit Facility and Bank Letters of Credit

Revolving Credit Facility

On October 25, 2012, the Company entered into a Credit Agreement (the “Credit Agreement”), as borrower, with Wells Fargo Bank, National Association, as Administrative Agent (“Agent”), and certain lenders (the “Lenders”), pursuant to which it established a senior unsecured revolving credit facility (the “Credit Facility”) in an aggregate principal amount of $100 million with sublimits for swingline loans (of $25 million) and the issuance of letters of credit (of $10 million). The Credit Facility matures on October 25, 2016. The proceeds of the Credit Facility may be used by the Company to finance certain capital expenditures and acquisitions permitted thereunder, to provide for the working capital and general corporate needs as well as to pay fees, commissions and expenses associated with the Credit Facility.

The terms of the Credit Agreement require the Company to comply with certain financial tests, and include various affirmative and negative covenants, representations and warranties, conditions and events of default. Additionally, the Credit Facility is subject to a commitment fee on the unused portion at an initial rate equal to 0.25 percent per annum. As of December 29, 2013, the Company was in compliance with the financial covenants, and there were no amounts outstanding under the Credit Facility.

Bank Letters of Credit

At December 29, 2013, the Company had $0.7 million of outstanding letters of credit. These letters of credit are secured by cash collateral provided by the Company equal to their face amount.

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Other Accrued Expenses

6 Months Ended

Dec. 29, 2013

Other Accrued Expenses [Abstract]

Other Accrued Expenses

Other Accrued Expenses

At December 29, 2013 and June 30, 2013, other accrued expenses were comprised of the following (in thousands):

	December 29, 2013		June 30, 2013
Sales returns	$	35,418	$	33,902
Accrued accounting and legal costs	10,421		8,108
Deferred revenue	11,826		9,678
Accrued warranty	1,787		1,992
Accrued utilities	2,320		2,516
Accrued repurchase obligation	2,553		4,759
Accrued sales and other taxes	4,927		3,053
Accrued subcontractor costs	1,384		1,307
Accrued rent	4,331		4,858
Other	5,096		8,241
Total other accrued expenses	$	80,063	$	78,414

Warranty

The Company records warranty liabilities at the time of sale for the estimated costs to be incurred under the terms of its warranty agreements. The specific warranty terms and conditions vary depending upon product sold and the country in which the Company does business. In general, for standard products, the Company will replace defective parts not meeting the Company’s published specifications at no cost to the customers. Factors that affect the liability include historical and anticipated failure rates of products sold, and cost per claim to satisfy the warranty obligation. If actual results differ from the estimates, the Company revises its estimated warranty liability to reflect such changes.

The following table details the changes in the Company’s warranty reserve for the six months endedDecember 29, 2013, which is included in other accrued liabilities in the schedule above (in thousands):

Accrued warranty, June 30, 2013	$	1,992
Accruals for warranties issued during the period	1,193
Changes in estimates related to pre-existing warranties	13
Warranty claim settlements	(1,411		)
Accrued warranty, December 29, 2013	$	1,787

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Changes in Accumulated Other Comprehensive Income (Loss)

6 Months Ended

Dec. 29, 2013

Changes in Accumulated Other Comprehensive Income (Loss) [Abstract]

Changes in Accumulated Other Comprehensive Loss

Changes in Accumulated Other Comprehensive Income (Loss)

The following table details the changes in the Company’s accumulated other comprehensive income (loss) balance for the six months endedDecember 29, 2013 (net of tax effect of $0, in thousands):

	Foreign Currency Translation Adjustments			Unrealized gain (loss) on available-for-sale securities			Total
Balance at June 30, 2013	$	(22,266	)	$	463		$	(21,803	)
Other comprehensive income before reclassifications	20,365			9,125			29,490
Amounts reclassified from accumulated other comprehensive income (loss)	—			(36		)	(36		)
Net other comprehensive income	$	20,365		$	9,089		$	29,454
Balance at December 29, 2013	$	(1,901	)	$	9,552		$	7,651

As a result of sales of available-for-sale securities, the Company reclassified a de minimis amount from accumulated other comprehensive income (loss) to earnings as a component of interest income, net, for the six months endedDecember 29, 2013. There were no amounts reclassified from accumulated other comprehensive income (loss) for the three months ended December 29, 2013, or for each of the three and six months endedDecember 23, 2012.

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Changes in Accumulated Other Comprehensive Income (Loss) (Tables)

6 Months Ended

Dec. 29, 2013

Changes in Accumulated Other Comprehensive Income (Loss) [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

The following table details the changes in the Company’s accumulated other comprehensive income (loss) balance for the six months endedDecember 29, 2013 (net of tax effect of $0, in thousands):

	Foreign Currency Translation Adjustments			Unrealized gain (loss) on available-for-sale securities			Total
Balance at June 30, 2013	$	(22,266	)	$	463		$	(21,803	)
Other comprehensive income before reclassifications	20,365			9,125			29,490
Amounts reclassified from accumulated other comprehensive income (loss)	—			(36		)	(36		)
Net other comprehensive income	$	20,365		$	9,089		$	29,454
Balance at December 29, 2013	$	(1,901	)	$	9,552		$	7,651

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Other Accrued Expenses (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Dec. 29, 2013	Jun. 30, 2013
Other Accrued Expenses [Abstract]
Sales returns	$ 35,418	$ 33,902
Accrued accounting and legal costs	10,421	8,108
Deferred revenue	11,826	9,678
Accrued warranty	1,787	1,992
Accrued utilities	2,320	2,516
Accrued repurchase obligation	2,553	4,759
Accrued sales and other taxes	4,927	3,053
Accured subcontractor costs	1,384	1,307
Accrued Rent	4,331	4,858
Other	5,096	8,241
Total other accrued expenses	80,063	78,414	[1]
Changes in warranty reserve [Roll Forward]
Accrued warranty beginning balance	1,992
Accruals for warranties issued during the period	1,193
Changes in estimates related to pre-existing warranties	13
Warranty claim settlements	(1,411)
Accrued warranty ending balance	$ 1,787

[1] Amounts derived from the audited financial statements at June 30, 2013

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Net Income per Common Share

6 Months Ended

Dec. 29, 2013

Earnings Per Share [Abstract]

Net Income per Common Share

Net Income per Common Share

Basic earnings per share ("EPS") is computed based on the weighted average number of shares of common stock outstanding during the period. Diluted EPS is computed based on the weighted average number of shares of common stock plus the effect of dilutive potential common shares outstanding during the period using the treasury stock method. Dilutive potential common shares include outstanding stock options and RSUs.

The table below provides a computation of basic and diluted earnings per share for the three and six months endedDecember 29, 2013 and December 23, 2012 (in thousands, except per share amounts):

	Three Months Ended					Six Months Ended
	December 29, 2013		December 23, 2012			December 29, 2013		December 23, 2012
Net income (loss)	$	17,921	$	(32,722	)	$	26,644	$	(61,497	)
Net income (loss) per common share – basic
Basic weighted average common shares outstanding	71,147		69,144			70,988		69,213
Basic net income (loss) per common share	$	0.25	$	(0.47	)	$	0.38	$	(0.89	)
Net income (loss) per common share – diluted
Basic weighted average common shares outstanding	71,147		69,144			70,988		69,213
Effect of dilutive securities – stock options and RSU’s	1,016		—			897		—
Diluted weighted average common shares outstanding	72,163		69,144			71,885		69,213
Diluted net income (loss) per common share	$	0.25	$	(0.47	)	$	0.37	$	(0.89	)

For the three and six months endedDecember 29, 2013, de minimis shares and 0.1 million shares of common stock equivalents, respectively, were anti-dilutive and were not included in the computation of diluted earnings per share for these periods. For each of the three and six months endedDecember 23, 2012, 2.4 million shares of common stock equivalents were anti-dilutive and were not included in the computation of diluted earnings per share for these periods. In addition, for each of the three and six months endedDecember 29, 2013, 1.1 million shares of contingently issuable RSUs for which all necessary conditions had not been met were not included in the computation of diluted earnings per share.

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Business, Basis of Presentation and Summary of Significant Accounting Policies (Tables)

6 Months Ended

Dec. 29, 2013

Business, Basis of Presentation and Summary of Significant Accounting Policies [Abstract]

Financial Assets and Liabilities Measured and Recorded at Fair Value on a Recurring Basis

The financial assets and liabilities which are measured and recorded at fair value on a recurring basis are included within the following items on the Company’s consolidated balance sheet as of December 29, 2013 and June 30, 2013 (in thousands):

	As of December 29, 2013
Assets and Liabilities:	Total			Level 1			Level 2			Level 3
Short-term investments	$	5,001		$	5,001		$	—		$	—
Other assets	38,656			36,726			—			1,930
Other accrued expenses	(10		)	—			(10		)	—
Other long-term liabilities	(9,370		)	(9,370		)	—			—
Total	$	34,277		$	32,357		$	(10	)	$	1,930

	As of June 30, 2013
Assets and Liabilities:	Total			Level 1			Level 2		Level 3
Short-term investments	$	11,056		$	6,004		$	5,052	$	—
Prepaid expenses and other current assets	19			—			19		—
Other assets	29,725			26,837			—		2,888
Other long-term liabilities	(8,326		)	(8,326		)	—		—
Total	$	32,474		$	24,515		$	5,071	$	2,888

Reconciliation of the Beginning and Ending Balance of Items Measured at Fair Value on a Recurring Basis using Significant Unobservable Inputs

The following tables provide a reconciliation of the beginning and ending balance of items measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the three months ended December 29, 2013 and December 23, 2012 (in thousands):

	Level 3
	Assets
	Derivatives
Beginning balance at September 29, 2013	$	2,563
Total losses (realized or unrealized) included in other expense, net	(633		)
Ending balance at December 29, 2013	$	1,930

	Level 3
	Assets
	Derivatives
Beginning balance at September 23, 2012	$	2,920
Total gains (realized or unrealized) included in other expense, net	116
Ending balance at December 23, 2012	$	3,036

The following tables provide a reconciliation of the beginning and ending balance of items measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the six months endedDecember 29, 2013 and December 23, 2012 (in thousands):

	Level 3
	Assets
	Derivatives
Beginning balance at June 30, 2013	$	2,888
Total losses (realized or unrealized) included in other expense, net	(958		)
Ending balance at December 29, 2013	$	1,930

	Level 3
	Assets
	Derivatives
Beginning balance at June 24, 2012	$	2,834
Total gains (realized or unrealized) included in other expense, net	202
Ending balance at December 23, 2012	$	3,036

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Goodwill and Acquisition-Related Intangible Assets Schedule of Goodwill (Details) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2013	Jun. 30, 2013
Goodwill [Line Items]
Goodwill	$ 52,149	$ 52,149	[1]
Energy-Saving Products [Member]
Goodwill [Line Items]
Goodwill	33,190	33,190
HiRel [Member]
Goodwill [Line Items]
Goodwill	$ 18,959	$ 18,959

[1] Amounts derived from the audited financial statements at June 30, 2013

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Investments, Available-for-sale Securities, Additional Disclosures (Details) (USD $)	3 Months Ended		6 Months Ended
	Dec. 29, 2013	Dec. 23, 2012	Dec. 29, 2013	Dec. 23, 2012	Jun. 30, 2013
Available-for-sale securities, additional disclosures [Abstract]
Available-for-sale Securities, Gross Realized Gains	$ 0	$ 0	$ 0	$ 0
Available-for-sale Securities, Gross Realized Losses	0	0	0	0
Proceeds from Sale of Available-for-sale Securities	0	52,100,000	36,000	52,131,000
Continuous unrealized loss position, market value [Abstract]
Market value, securities held in a loss position for less than 12 months					1,052,000
Market value, securities held in a loss position for 12 months or more					0
Market value, total in a loss position					1,052,000
Continuous unrealized loss position, gross unrealized losses [Abstract]
Gross unrealized losses, securities held in a loss position for less than 12 months					(5,000)
Gross unrealized losses, securities held in a loss position for 12 months or more					0
Gross unrealized losses, total in a loss position					(5,000)
Amortized cost, by contractual maturity [Abstract]
Amortized cost, Due in 1 year or less	4,999,000		4,999,000
Amortized cost, Total investments	4,999,000		4,999,000
Estimated market value, by contractual maturity [Abstract]
Estimated market value, Due in 1 year or less	5,001,000		5,001,000
Estimated market value, Total investments	5,001,000		5,001,000
Equity Securities [Member]
Continuous unrealized loss position, market value [Abstract]
Market value, securities held in a loss position for less than 12 months					1,052,000
Market value, securities held in a loss position for 12 months or more					0
Market value, total in a loss position					1,052,000
Continuous unrealized loss position, gross unrealized losses [Abstract]
Gross unrealized losses, securities held in a loss position for less than 12 months					(5,000)
Gross unrealized losses, securities held in a loss position for 12 months or more					0
Gross unrealized losses, total in a loss position					(5,000)
Publicly traded foreign company (s) - common stock [Member]
Available-for-sale securities, additional disclosures [Abstract]
Number of investments in publicly traded foreign companies			3
Number of strategic investments with a put option	1		1
Fair Value Of Put Option	1,900,000		1,900,000
Dividend income from common stock investments	$ 0	$ 0	$ 100,000	$ 100,000

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CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 29, 2013	Jun. 30, 2013
Current assets:
Cash and cash equivalents	$ 498,487	$ 443,490	[1]
Restricted cash	635	611	[1]
Short-term investments	5,001	11,056	[1]
Trade accounts receivable, net of allowances	156,730	137,762	[1]
Inventories	247,740	232,315	[1]
Current deferred tax assets	4,946	4,948	[1]
Prepaid expenses and other current assets	34,222	33,002	[1]
Total current assets	947,761	863,184	[1]
Restricted cash	739	738	[1]
Property, plant and equipment, net	412,277	423,338	[1]
Goodwill	52,149	52,149	[1]
Acquisition-related intangible assets, net	18,663	21,923	[1]
Long-term deferred tax assets	29,108	32,792	[1]
Other assets	65,135	59,088	[1]
Total assets	1,525,832	1,453,212	[1]
Current liabilities:
Accounts payable	86,403	89,312	[1]
Accrued income taxes	4,361	949	[1]
Accrued salaries, wages and commissions	37,764	39,719	[1]
Other accrued expenses	80,063	78,414	[1]
Total current liabilities	208,591	208,394	[1]
Long-term deferred tax liabilities	9,723	8,970	[1]
Other long-term liabilities	16,876	24,530	[1]
Total liabilities	235,190	241,894	[1]
Commitments and contingencies
Stockholders' equity:
Common shares	77,426	76,590	[1]
Capital contributed in excess of par value	1,090,231	1,067,841	[1]
Treasury stock, at cost	(113,175)	(113,175)	[1]
Retained earnings	228,509	201,865	[1]
Accumulated other comprehensive income (loss)	7,651	(21,803)	[1]
Total stockholders' equity	1,290,642	1,211,318	[1]
Total liabilities and stockholders' equity	$ 1,525,832	$ 1,453,212	[1]

[1] Amounts derived from the audited financial statements at June 30, 2013

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Supplemental Cash Flow Disclosures

6 Months Ended

Dec. 29, 2013

Supplemental Cash Flow Disclosures [Abstract]

Supplemental Cash Flow Disclosures

Supplemental Cash Flow Disclosures

Components of the changes in operating assets and liabilities during the six months endedDecember 29, 2013 and December 23, 2012 were comprised of the following (in thousands):

	Six Months Ended
	December 29, 2013			December 23, 2012
Trade accounts receivable	$	(18,392	)	$	34,979
Inventories	(13,514		)	24,265
Prepaid expenses and other current assets	1,818			(255		)
Accounts payable	(3,706		)	(10,727		)
Accrued salaries, wages and commissions	(2,288		)	(175		)
Deferred compensation	402			(465		)
Accrued income taxes	4,266			(4,441		)
Other accrued expenses	(6,658		)	(17,573		)
Changes in operating assets and liabilities	$	(38,072	)	$	25,608

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Net Income per Common Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 29, 2013	Dec. 23, 2012	Dec. 29, 2013	Dec. 23, 2012
Earnings Per Share [Abstract]
Net income (loss)	$ 17,921	$ (32,722)	$ 26,644	$ (61,497)
Earnings per common share - basic [Abstract]
Basic weighted average common shares outstanding (in shares)	71,147,000	69,144,000	70,988,000	69,213,000
Basic net income (loss) per common share (in dollars per share)	$ 0.25	$ (0.47)	$ 0.38	$ (0.89)
Earnings per common share - diluted [Abstract]
Basic weighted average common shares outstanding (in shares)	71,147,000	69,144,000	70,988,000	69,213,000
Effect of dilutive securities - stock options and RSU's (in shares)	1,016,000	0	897,000	0
Diluted weighted average common shares outstanding (in shares)	72,163,000	69,144,000	71,885,000	69,213,000
Net income (loss) per common share-diluted (in dollars per share)	$ 0.25	$ (0.47)	$ 0.37	$ (0.89)
Antidilutive securities excluded from computation of earnings per share (in shares)	0	2,400,000	100,000	2,400,000
Potentially dilutive restricted stock units excluded from computation of earnings per share (in shares)	1,100,000		1,100,000

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Investments (Tables)

6 Months Ended

Dec. 29, 2013

Investments, Debt and Equity Securities [Abstract]

Summary of Available-for-Sale Securities

Available-for-sale securities as of December 29, 2013 are summarized as follows (in thousands):

	Amortized Costs		Gross Unrealized Gain		Gross Unrealized Loss		Net Unrealized Gain		Market Value
Short-Term Investments:
U.S. government and agency obligations	$	4,999	$	2	$	—	$	2	$	5,001
Total short-term investments	$	4,999	$	2	$	—	$	2	$	5,001
Equity securities	$	11,631	$	14,870	$	—	$	14,870	$	26,501

Available-for-sale securities as of June 30, 2013 are summarized as follows (in thousands):

	Amortized Costs		Gross Unrealized Gain		Gross Unrealized Loss			Net Unrealized Gain		Market Value
Short-Term Investments:
Corporate debt	$	—	$	40	$	—		$	40	$	40
U.S. government and agency obligations	11,007		9		—			9		11,016
Total short-term investments	$	11,007	$	49	$	—		$	49	$	11,056
Equity securities	$	11,631	$	5,739	$	(5	)	$	5,734	$	17,365

Fair Value and Gross Unrealized Losses Related to Available-for-sale Securities

There were no available-for-sale investments in a gross unrealized loss position as of December 29, 2013. The following table summarizes the fair value and gross unrealized losses related to available-for-sale investments, aggregated by type of investment and length of time that individual securities were held in a loss position as of June 30, 2013 (in thousands):

	Securities held in a loss position for less than 12 months at June 30, 2013					Securities held in a loss position for 12 months or more at June 30, 2013				Total in a loss position at June 30, 2013
	Market Value		Gross Unrealized Losses			Market Value		Gross Unrealized Losses		Market Value		Gross Unrealized Losses
Equity Securities	$	1,052	$	(5	)	$	—	$	—	$	1,052	$	(5	)
Total	$	1,052	$	(5	)	$	—	$	—	$	1,052	$	(5	)

Amortized Cost and Estimated Fair Value of Investments by Contractual Maturity

The amortized cost and estimated fair value of investments at December 29, 2013, by contractual maturity of investment, are as follows (in thousands):

Contractual Maturity	Amortized Cost		Estimated Market Value
Due in 1 year or less	$	4,999	$	5,001
Total investments	$	4,999	$	5,001

Investments Measured at Fair Value on a Recurring Basis

The following tables present the balances of investments measured at fair value on a recurring basis, by type of investment (in thousands):

	As of December 29, 2013
	Total		Level 1		Level 2		Level 3
U.S. government and agency obligations	$	5,001	$	5,001	$	—	$	—
Equity securities-strategic investments	26,501		26,501		—		—
Total securities at fair value	$	31,502	$	31,502	$	—	$	—

	As of June 30, 2013
	Total		Level 1		Level 2		Level 3
Corporate debt	$	40	$	—	$	40	$	—
U.S. government and agency obligations	11,016		6,004		5,012		—
Equity securities-strategic investments	17,365		17,365		—		—
Total securities at fair value	$	28,421	$	23,369	$	5,052	$	—

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Net Income per Common Share (Tables)

6 Months Ended

Dec. 29, 2013

Earnings Per Share [Abstract]

Reconciliation of Numerator and Denominator for Basic and Diluted Per-Share Computations

The table below provides a computation of basic and diluted earnings per share for the three and six months endedDecember 29, 2013 and December 23, 2012 (in thousands, except per share amounts):

	Three Months Ended					Six Months Ended
	December 29, 2013		December 23, 2012			December 29, 2013		December 23, 2012
Net income (loss)	$	17,921	$	(32,722	)	$	26,644	$	(61,497	)
Net income (loss) per common share – basic
Basic weighted average common shares outstanding	71,147		69,144			70,988		69,213
Basic net income (loss) per common share	$	0.25	$	(0.47	)	$	0.38	$	(0.89	)
Net income (loss) per common share – diluted
Basic weighted average common shares outstanding	71,147		69,144			70,988		69,213
Effect of dilutive securities – stock options and RSU’s	1,016		—			897		—
Diluted weighted average common shares outstanding	72,163		69,144			71,885		69,213
Diluted net income (loss) per common share	$	0.25	$	(0.47	)	$	0.37	$	(0.89	)

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Income Taxes

6 Months Ended

Dec. 29, 2013

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The Company recorded a tax benefit of $1.6 million, or (10.0) percent of pre-tax income of $16.3 million, for the three months ended December 29, 2013. The main component of the tax benefit was an $8.1 million net reduction in foreign uncertain tax positions, primarily related to: (i) a reduction of taxes of $6.3 million and (ii) related interest and penalties of $1.3 million, both arising from lapses in statutes of limitation in certain foreign jurisdictions. The remaining $0.5 million benefit arose from settlements with certain foreign tax authorities. The benefit was partially offset by: (i) a $5.7 million expense related primarily to foreign income taxes, (ii) a $0.5 million expense related to foreign withholding taxes, and (iii) a $0.4 million expense in other income taxes.

The Company recorded a tax expense of $5.2 million, or 16.4 percent of pre-tax income of $31.9 million, for the six months endedDecember 29, 2013. The main components of the tax expense were: (i) an $8.8 million expense primarily related to foreign income taxes, (ii) a reduction in the United Kingdom ("U.K.") statutory tax rates, reducing the value of the Company's net deferred tax assets in the U.K. by $4.0 million, (iii) $1.0 million in foreign withholding taxes, and (iv) $0.5 million in settlements with respect to income tax audits in certain tax jurisdictions. These expenses were partially offset by a net reduction in various foreign uncertain tax positions and related interest and penalties, which arose from lapses in statutes of limitation, totaling approximately $8.9 million.

The Company recorded a tax benefit of $2.4 million, or 6.9 percent against a loss of $35.1 million, for the three months ended December 23, 2012. The main component of the tax benefit was a reduction in foreign uncertain tax positions arising from lapses in statutes of limitation totaling $4.3 million. This benefit was partially offset by an expense related to foreign withholding taxes, foreign income taxes, and the lack of tax benefit from the ordinary loss in the U.S. due to the Company's valuation allowance position.

The Company recorded a tax expense of $4.5 million, or (8.0) percent against a loss of $57.0 million, for the six months endedDecember 23, 2012. The main components of the tax expense were: (i) a decrease in the U.K. statutory tax rates, which reduced the value of the Company's net deferred tax assets in the U.K. by $3.2 million, (ii) expenses related to foreign income taxes and foreign withholding taxes, and (iii) the lack of tax benefit from the ordinary loss in the U.S. due to the Company's valuation allowance position. These expenses were partially offset by a reduction in uncertain tax positions, and by the benefit of a loss in a foreign jurisdiction.

The Company evaluates its net deferred income tax assets quarterly to determine if valuation allowances are required. Based on the consideration of all available evidence using a “more-likely-than-not” standard, as of December 29, 2013 the Company has determined that the valuation allowance established against its federal and state deferred tax assets in the U.S. should remain in place through fiscal year 2014.  These valuation allowances relate to the Company's beginning of fiscal year 2014 balances of reserves, which were established during fiscal year 2009.

The Company operates in multiple foreign jurisdictions with lower statutory tax rates compared to the U.S., and its operations in Singapore generally have the most significant impact on the Company’s effective tax rate. During fiscal year 2011, the Company was granted certain incentives, which were then amended in fiscal year 2013, by the Singapore Economic Development Board. As a result of these incentives, the Company operates under a tax holiday in Singapore, effective from December 27, 2010 through December 26, 2022.  The tax holiday is conditioned upon the Company meeting certain employment and investment thresholds which have been met to date. The Company did not realize a benefit from this tax holiday for this reporting period.

During the three months ended December 29, 2013, the reserve for uncertain tax positions decreased by $6.3 million to $39.6 million. The reduction in the reserve for uncertain tax position consisted of: (i) a $6.3 million reduction due to lapses in the statutes of limitation in certain foreign jurisdictions, (ii) $0.5 million resulting from settlements with certain foreign tax authorities, and (iii) a $0.2 million foreign currency translation adjustment. The reduction was partially offset by a $0.7 million accrual for new uncertain tax positions. For fiscal year 2014, the benefits associated with uncertain tax positions are anticipated to result in a benefit to income taxes on the consolidated statement of operations of $3.3 million, and if recognized, would reduce the Company's future effective tax rate accordingly. The reserve is expected to decrease by $0.7 million during the next 12 months primarily due to lapses in the statutes of limitation in certain foreign jurisdictions.

While it is often difficult to predict the final outcome or the timing of the resolution of any particular uncertain tax position, the Company believes its reserve for income taxes represents the most probable outcome. The Company adjusts this reserve, including the portion related to interest, in light of changing facts and circumstances. As of December 29, 2013, the Company had a reserve balance of $1.3 million of interest and penalties related to uncertain tax positions. For the three months ended December 29, 2013, penalties and interest included in the reserves decreased by $1.4 million primarily due to lapses in the applicable statutes of limitation.

As of December 29, 2013, U.S. income taxes have been provided on approximately $4.0 million of undistributed earnings of foreign subsidiaries. The amount represents excess cash held by foreign subsidiaries not required for working capital, capital expenditures and other needs of the foreign subsidiaries. The remaining unrepatriated foreign earnings are considered to be invested indefinitely.

Pursuant to Sections 382 and 383 of the U.S. Internal Revenue Code (the "Code"), the utilization of net operating losses (“NOLs”) and other tax attributes may be subject to substantial limitations if certain ownership changes occur during a three-year testing period (as defined under the Code). The Company does not believe an ownership change has occurred that would limit the Company's utilization of any NOL, credit carry forward or other related tax attributes.