UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

x Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the Quarterly Period Ended June 30, 2002

or

¨ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the transition period from ____ to ____

Commission File No. 0-8866

MICROSEMI CORPORATION

(Exact name of registrant as specified in its charter)

Delaware (State or other jurisdiction of incorporation or organization) 2381 Morse Avenue, Irvine, California (Address of principal executive offices) 95-2110371 (I.R.S. Employer Identification No.) 92614 (Zip Code)

(949) 221-7100

(Registrant’s telephone number, including area code)

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

The number of shares of the issuer’s Common Stock, $0.20 par value, outstanding on June 30, 2002 was 28,885,040.

PART I—FINANCIAL INFORMATION

Item 1.    FINANCIAL STATEMENTS

The unaudited consolidated income statements for the quarter and nine months ended June 30, 2002 of Microsemi Corporation and Subsidiaries (“Microsemi” or the “Company”), the Company’s unaudited consolidated statements of cash flows for the nine months ended June 30, 2002, and the comparative unaudited consolidated financial information for the corresponding periods of the prior year, together with the Company’s unaudited condensed balance sheets as of June 30, 2002 and as of September 30, 2001, are attached hereto and incorporated herein.

2

MICROSEMI CORPORATION AND SUBSIDIARIES

Unaudited Consolidated Balance Sheets

(amounts in thousands, except par value per share)

	September 30, 2001			June 30, 2002
ASSETS
Current assets:
Cash and cash equivalents	$	24,808		$	26,340
Accounts receivable less allowance for doubtful accounts, $3,584 at September 30, 2001 and $4,086 at June 30, 2002		37,950			31,111
Inventories		58,889			56,870
Deferred income taxes		12,277			12,276
Other current assets		2,072			2,520
Total current assets		135,996			129,117
Property and equipment, net		63,380			65,279
Deferred income taxes		1,671			1,671
Goodwill and other intangible assets, net		37,306			34,831
Other assets		1,818			1,489
TOTAL ASSETS	$	240,171		$	232,387
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Notes payable	$	9,766		$	9,879
Current maturities of long-term debt		3,573			211
Accounts payable		11,385			8,408
Accrued liabilities		22,158			17,024
Income taxes payable		6,862			5,194
Total current liabilities		53,744			40,716
Long-term debt		6,078			4,373
Other long-term liabilities		4,960			4,631
Commitments and contingencies (Note 3)
Stockholders’ equity:
Common stock, $.20 par value; authorized 100,000 shares;issued and outstanding 28,248 and 28,885 at September 30,2001 and June 30, 2002, respectively		5,650			5,777
Capital in excess of par value of common stock		110,729			115,580
Retained earnings		60,096			62,460
Accumulated other comprehensive loss		(1,086	)		(1,150	)
Total stockholders’ equity		175,389			182,667
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$	240,171		$	232,387

The accompanying notes are an integral part of these statements.

3

MICROSEMI CORPORATION AND SUBSIDIARIES

Unaudited Consolidated Income Statements

(amounts in thousands, except earnings per share)

	Quarter Ended
	July 1, 2001		June 30, 2002
Net sales	$	60,089	$	51,466
Cost of sales		39,623		35,740
Gross profit		20,466		15,726
Operating expenses:
Selling, general and administrative		9,464		9,895
Amortization of goodwill and other intangible assets		670		965
Research and development		4,094		6,116
Restructuring charges		—		335
Asset impairments		—		80
Total operating expenses		14,228		17,391
Operating income (loss)		6,238		(1,665	)
Other income (expense):
Interest, net		162		(159	)
Other, net		221		2,928
Total other income		383		2,769
Income before income taxes		6,621		1,104
Provision for income taxes		2,185		364
Net income	$	4,436	$	740
Earnings per share:
—Basic	$	0.16	$	0.03
—Diluted	$	0.15	$	0.03
Weighted average common and common equivalent shares outstanding:
—Basic		27,992		28,877
—Diluted		29,820		29,423

The accompanying notes are an integral part of these statements.

4

MICROSEMI CORPORATION AND SUBSIDIARIES

Unaudited Consolidated Income Statements

(amounts in thousands, except earnings per share)

	Nine Months Ended
	July 1, 2001		June 30, 2002
Net sales	$	186,225	$	163,453
Cost of sales		125,232		107,554
Gross profit		60,993		55,899
Operating expenses:
Selling, general and administrative		29,348		29,102
Amortization of goodwill and other intangible		2,029		2,901
Research and development		11,291		17,063
Restructuring charges		—		4,070
Asset impairments		—		1,687
Total operating expenses		42,668		54,823
Operating income		18,325		1,076
Other income (expense):
Interest, net		518		(489	)
Other, net		267		2,942
Total other income		785		2,453
Income before income taxes		19,110		3,529
Provision for income taxes		6,306		1,165
Net income	$	12,804	$	2,364
Earnings per share:
—Basic	$	0.46	$	0.08
—Diluted	$	0.44	$	0.08
Weighted average common and common equivalent shares outstanding:
—Basic		27,882		28,605
—Diluted		29,512		29,799

The accompanying notes are an integral part of these statements.

5

MICROSEMI CORPORATION AND SUBSIDIARIES

Unaudited Consolidated Statements of Cash Flows

(amounts in thousands)

	Nine Months Ended
	July 1, 2001			June 30, 2002
Cash flows from operating activities:
Net income	$	12,804		$	2,364
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		9,192			10,593
Bad dept expense		(1,866	)		663
Gain on retirement and disposition of assets		(400	)		(3,088	)
Impairment of assets		—			1,679
Stock based compensation for services provided		459			—
Changes in assets and liabilities, net of dispositions:
Accounts receivable		1,175			5,025
Inventories		2,821			(1,536	)
Other current assets		(2,254	)		(448	)
Other assets		1,350			—
Accounts payable		(2,700	)		(2,977	)
Accrued liabilities		(2,359	)		(4,851	)
Income taxes payable		(2,999	)		(1,668	)
Net cash provided by operating activities		15,223			5,756
Cash flows from investing activities:
Purchases of property and equipment		(10,665	)		(16,158	)
Changes in other assets		259			(227	)
Proceeds from sales of assets		1,020			12,643
Net cash used in investing activities		(9,386	)		(3,742	)
Cash flows from financing activities:
Decrease in note payable to banks		(1,001	)		—
Payments of notes payable to others		(946	)		(2,567	)
Decrease in other long-term liabilities		(125	)		(329	)
Exercise of employee stock options		3,177			2,478
Net cash provided by (used in) financing activities		1,105			(418	)
Effect of exchange rate changes on cash		(23	)		(64	)
Net increase in cash and cash equivalents		6,919			1,532
Cash and cash equivalents at beginning of period		30,460			24,808
Cash and cash equivalents at end of period	$	37,379		$	26,340

In March, 2002, the Company issued 333,333 shares of Microsemi’s common stock as payment in full for a $2.5 million convertible note related to the acquisition from Infinesse Corp.

The accompanying notes are an integral part of these statements.

6

MICROSEMI CORPORATION AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2002

1.    PRESENTATION OF FINANCIAL INFORMATION

The financial information furnished herein is unaudited, but in the opinion of Management of Microsemi Corporation includes all adjustments (all of which are normal, recurring adjustments) necessary for a fair presentation of the results of operations for the periods indicated. The results of operations for the third quarter or the first nine months of the current fiscal year are not necessarily indicative of the results to be expected for the full year.

The accompanying unaudited consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q, and therefore do not include all information and footnotes necessary for a fair presentation of financial position, results of operations and cash flows in conformity with generally accepted accounting principles. The unaudited consolidated financial statements and notes should be read in conjunction with the consolidated financial statements and notes thereto in the Annual Report on Form 10-K for the fiscal year ended September 30, 2001.

2.    INVENTORIES

Inventories used in the computation of cost of goods sold were (amounts in thousands):

	September 30, 2001		June 30, 2002
Raw materials	$	14,751	$	11,280
Work in process		23,565		25,984
Finished goods		20,573		19,606
	$	58,889	$	56,870

3.    CONTINGENCY

In Broomfield, Colorado, the owner of a property located adjacent to a manufacturing facility owned by a subsidiary of the Company had notified the subsidiary and other parties, claiming that contaminants migrated to his property, thereby diminishing its value. In August 1995, the subsidiary, together with former owners of the manufacturing facility, agreed to settle the claim and to indemnify the owner of the adjacent property for remediation costs. Although TCE and other contaminants previously used at the facility are present in soil and groundwater on the subsidiary’s property, the Company vigorously contests any assertion that the subsidiary is the cause of the contamination. In November 1998, the Company signed an agreement with three former owners of this facility whereby the former owners 1) reimbursed the Company for $530,000 of past costs, 2) assumed responsibility for 90% of all future clean-up costs, and 3) agreed to indemnify and protect the Company against any and all third-party claims relating to the contamination of the facility. An Integrated Corrective Action Plan has been submitted to the State of Colorado. Sampling and free phase management plans are in preparation for the Colorado Department of Public Heath & Environment. State and local agencies in Colorado are reviewing current data and considering study and cleanup options, and it is not yet possible to predict costs for remediation. In the opinion of Management, the final outcome of the Broomfield, Colorado environmental matter will not have a material adverse effect on the Company’s financial position, results of operations or cash flows.

The Company is involved in various pending litigation matters, arising out of the normal conduct of its business, including from time to time litigation relating to commercial transactions, contracts, and environmental matters. In the opinion of Management, the final outcome of these matters will not have a material adverse effect on the Company’s financial position, results of operations or cash flows.

4.    COMPREHENSIVE INCOME

Comprehensive income is defined as the change in equity (net assets) of a business enterprise during the period from transactions and other events and circumstances from non-owner sources. Accumulated other comprehensive loss consists of the change in the cumulative translation adjustment. Total comprehensive income of the Company for the quarters ended July 1, 2001 and June 30, 2002 was $4,442,000 and $733,000, respectively. Total comprehensive income for the nine months ended July 1, 2001 and June 30, 2002 was $12,781,000 and $2,300,000, respectively.

5.    EARNINGS PER SHARE

Basic earnings per share have been computed based upon the weighted average number of common shares outstanding during the respective periods. Diluted earnings per share have been computed, when the result is dilutive, using the treasury stock method for stock options outstanding and giving effect to issuance of shares upon conversion of debt during the respective periods.

7

Earnings per share for the respective quarters and respective nine months ended July 1, 2001 and June 30, 2002 were calculated as follows (amounts in thousands, except per share data):

	Quarter Ended				Nine Months Ended
	July 1, 2001		June 30, 2002		July 1, 2001		June 30, 2002
BASIC
Net income	$	4,436	$	740	$	12,804	$	2,364
Weighted-average common shares Outstanding		27,992		28,877		27,882		28,605
Basic earnings per share	$	0.16	$	0.03	$	0.46	$	0.08
DILUTED
Net income	$	4,436	$	740	$	12,804	$	2,364
Interest savings from assumed conversions of convertible debt, net of income taxes		29		—		88		53
Net income assuming conversions	$	4,465	$	740	$	12,892	$	2,417
Weighted-average common shares outstanding for basic		27,992		28,877		27,882		28,605
Dilutive effect of stock options		1,494		546		1,296		1,000
Dilutive effect of convertible debt		334		—		334		194
Weighted-average common shares outstanding on a diluted basis		29,820		29,423		29,512		29,799
Diluted earnings per share	$	0.15	$	0.03	$	0.44	$	0.08

Approximately 39,000 and 3,362,000 options were not included in the computation of diluted EPS in the third quarters of fiscal years 2001 and 2002, respectively, and 64,000 and 1,728,000 options were not included in the computation of diluted EPS in the nine months fiscal years 2001 and 2002, respectively, as they would have been antidilutive.

6.    RECENTLY ISSUED ACCOUNTING STANDARDS

In June 2001, the FASB issued SFAS No. 141, “Business Combinations” and SFAS No. 142, “Goodwill and Other Intangible Assets.” SFAS No. 141 establishes new accounting and reporting standards for business combinations and requires that the purchase method of accounting be used for all business combinations initiated after June 30, 2001 and for all business combinations accounted for by the purchase method for which the date of acquisition is after June 30, 2001. Use of the pooling-of-interest method is prohibited. The acquisitions of New England Semiconductor Corp. and Compensated Devices, Inc. in August, 2001 were accounted for under the provisions of SFAS No. 141. Further, goodwill and other intangible assets acquired in these acquisitions were subject immediately to the provisions of SFAS No. 142. SFAS No. 142, which changes the accounting for goodwill from an amortization method to an impairment-only approach, will be effective on a Company-wide basis at the beginning of the first quarter of fiscal year 2003. The Company is currently evaluating the Company-wide impact of adopting SFAS No. 142.

In July 2001, the FASB issued SFAS No. 143, “Accounting for Asset Retirement Obligations”. SFAS No. 143 addresses financial accounting and reporting for obligations associated with the retirement of tangible long-lived assets and the associated asset retirement costs. This Statement will be effective for the Company no later than the first quarter of fiscal year 2003. The Company is currently evaluating the impact of adopting SFAS No. 143.

8

In August 2001, the FASB issued SFAS No. 144, “Accounting for the Impairment or Disposal of Long-Lived Assets”. This Statement addresses financial accounting and reporting for the impairment or disposal of long-lived assets. This Statement will be effective for the Company no later than the first quarter of fiscal year 2003. The Company is currently evaluating the impact of adopting SFAS No. 144.

9

7.    SEGMENT INFORMATION

The Company’s reportable operating segments are based on geographic location and the measure of segment profit is income from operations.

The Company operates predominantly in a single industry segment as a manufacturer of discrete semiconductors and whole-circuit solutions. Geographic areas in which the Company operates include the United States, Europe and Asia. Inter-geographic sales primarily represent intercompany sales which are accounted for based on established sales prices between the related companies and are eliminated in consolidation.

Financial information by geographic segments is as follows (amounts in thousands):

	Nine Months Ended
	July 1, 2001			June 30, 2002
Net sales:
United States
Sales to unaffiliated customers	$	163,491		$	145,249
Intergeographic sales		21,006			15,882
Europe
Sales to unaffiliated customers		20,298			18,131
Intergeographic sales		3,924			2,233
Asia
Sales to unaffiliated customers		2,436			73
Intergeographic sales		3,355			803
Eliminations of intergeographic sales		(28,285	)		(18,918	)
	$	186,225		$	163,453
Income (loss) from operations:
United States	$	17,079			(661	)
Europe		949			2,142
Asia		297			(405	)
Total	$	18,325		$	1,076
Capital expenditures:
United States	$	10,464		$	15,952
Europe		201			206
Total	$	10,665		$	16,158
Depreciation and amortization:
United States	$	8,835		$	10,340
Europe		179			182
Asia		178			71
Total	$	9,192		$	10,593
	September 30, 2001			June 30, 2002
Identifiable assets:
United States	$	224,271			217,469
Europe		10,609			10,489
Asia		5,291			4,429
Total	$	240,171		$	232,387

10

8.    RESTRUCTURING CHARGES AND ASSET IMPAIRMENTS

In January 2002, the Company announced its Capacity Optimization and Profit Enhancement Programs to increase company-wide capacity utilization and operating efficiencies through consolidations and realignments of operations.

During the quarter ended March 31, 2002, the Company recorded restructuring charges of $3,735,000, and asset impairments of $3,188,000.

During the quarter ended June 30, 2002, the Company recorded additional restructuring charges of $335,000 and additional asset impairments of $426,000.

The respective restructuring charges of $335,000 and $4,070,000 for the quarter ended June 30, 2002 and the nine months ended June 30, 2002 primarily represent exit costs related to the Company’s consolidation of its Massachusetts operations, including closure of its Watertown and Melrose plants. The exit costs include employee severance, contract cancellations, facility closure costs and write-off of equipment under construction that was abandoned at the Watertown plant as a result of the plant closure. The exit costs for the quarter ended June 30, 2002 and the nine months ended June 30, 2002 include $190,000 and $2,290,000, respectively, for employee severance and $145,000 and $1,780,000, respectively, for facility closure costs.

The employee severance costs for the quarter ended June 30, 2002 include termination benefits for 33 employees as part of the Company’s involuntary termination plans at the Company’s plants in Lowell and Melrose, Massachusetts. The severance costs for the quarter ended June 30, 2002 represent approximately $54,000 related to management positions. The employee severance for the nine months ended June 30, 2002 includes termination benefits for 222 employees as part of the Company’s involuntary termination plans at the Company’s plants in Watertown, Lowell and Melrose, Massachusetts and Scottsdale, Arizona. The severance costs for the nine months ended June 30, 2002 represent approximately $714,000 related to management positions. The Company expects its employee reductions to be completed by the end of the Company’s 2002 fiscal year.

The asset impairment charges for the quarter ended June 30, 2002 are comprised of an inventory write-down of $346,000 and an equipment write-down of $80,000. The inventory write-down represents the carrying value of non-strategic inventory to be disposed of in connection with the closure of the Company’s Watertown plant and discontinuation of a product line. The write-down of equipment relates to equipment used to produce the discontinued product line. The asset impairment charges for the nine months ended June 30, 2002 are comprised of an inventory write-down of $1,927,000 and an equipment write-down of $1,687,000. The inventory write-down for the nine months ended June 30, 2002 represents the carrying value of non-strategic inventory to be disposed of in connection with the closure of the Company’s Watertown plant and discontinuation of a product line. The write-down of equipment for the nine months ended June 30, 2002 relates to equipment used to produce the discontinued product line. The equipment will be disposed of by September 2002.

The liability balance is included in Accrued Liabilities in the consolidated balance sheet at June 30, 2002. The following table reflects the activities and the liability balance for the quarter ended June 30, 2002 (amounts in 000s):

	Workforce Reductions			Plant Closures			Asset Impairments			Total
Provision	$	2,100		$	1,635		$	3,188		$	6,923
Cash expenditures		(240	)		—			—			(240	)
Non-cash write-offs included in cost of sales		—			—			(1,581	)		(1,581	)
Other non-cash write-offs		—			(577	)		(1,607	)		(2,184	)
Balance at March 31, 2002		1,860			1,058			—			2,918
Provision		190			145			426			761
Cash expenditures		(551	)		(145	)		—			(696	)
Non-cash write-offs included in cost of sales		—			—			(346	)		(346	)
Other non-cash write-offs		—			—			(80	)		(80	)
Balance at June 30, 2002	$	1,499		$	1,058		$	—		$	2,557

11

9.    DISPOSITIONS

In June 2002, the Company completed the sale of the assets, including the real property, of Microsemi RF Products, Inc., a wholly-owned subsidiary of the Company, based in Montgomeryville, Pennsylvania to a subsidiary of Advanced Power Technology Inc., of Bend, Oregon. The Company received $11.1 million in cash, net of selling expenses, and recorded a gain of approximately $3.4 million.

In June 2002, the Company sold a building in Florida for $1.6 million and recorded a loss of approximately $0.3 million.

12

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

This Quarterly Report on Form 10-Q includes current beliefs, expectations and other forward looking statements, the realization of which may be adversely impacted by any of the factors discussed or referenced under the heading “Important Factors Related to Forward-Looking Statements and Associated Risks,” found below. This Management’s Discussion and Analysis of Financial Condition and Results of Operations and the accompanying unaudited consolidated financial statements and notes should be read in conjunction with the factors discussed or referenced under the heading “Important Factors Related to Forward-Looking Statements and Associated Risks,” found below, and the Management’s Discussion and Analysis of Financial Condition and Results of Operations and the consolidated financial statements and notes thereto in the Annual Report on Form 10-K for the fiscal year ended September 30, 2001.

INTRODUCTION

Microsemi Corporation (“Microsemi” or the “Company”) is a global supplier of commercial and high-reliability analog and mixed-signal integrated circuits (“IC”) and power and signal discrete semiconductors serving the satellite, telecommunications, digital media, computer and peripherals, military/aerospace, industrial/commercial, and medical markets.

The Company’s IC products offer light, sound and power management for desktop and mobile computing platforms as well as other power control applications. Power management generally refers to a class of standard linear integrated circuits (“SLICs”) that perform voltage regulation and reference in most electronic systems. The definition of power management has broadened in recent years to encompass other devices and modules, often application specific standard products (“ASSPs”), which address particular aspects of power management, such as audio or display related ICs. This business is composed of both a core platform of traditional SLICs, such as low dropout regulators (“LDOs”) and pulse width modulators (“PWMs”), and differentiated ASSPs such as backlight inverters, audio amplification ICs and small computer standard interface (“SCSI”) terminators. The Company’s integrated circuit products are used in computers, data storage, lighting, automobiles, telecommunications, test instruments, defense and aerospace equipment, high-quality sound reproduction and data transfer equipment.

Major discrete products of the Company are silicon rectifiers, zener diodes, low leakage and high voltage diodes, temperature compensated zener diodes, transistors and a family of subminiature high power transient suppressor diodes. The Company also manufactures discrete semiconductors for commercial applications, such as automatic surge protectors, transient suppressor diodes used for telephone applications and computer switching diodes used in computer systems. A partial list of applications of the Company’s discrete semiconductor products includes: heart pacer transient shock protector diodes (where the Company believes it is the leading supplier in that market), low leakage diodes, transistors used in jet aircraft engines and high performance test equipment, high temperature diodes used in oil drilling sensing elements operating at 200 degrees centigrade, temperature compensated zener or rectifier diodes used in missile systems and power transistors.

The Company currently serves a broad group of customers including Boeing, Guidant/Cardiac Pace Makers, Seagate Technology, Astrium, Universal Semiconductor, Motorola, Alcatel, and Medtronic.

The Company closed Microsemi PPC Inc. (“PPC”) in March 2001 and ceased the operations at Microsemi (H.K.) Ltd. (“Hong Kong”) in June 2001. On August 2, 2001, Microsemi NES, Inc. (“MNES”), a wholly-owned subsidiary of the Company, acquired the assets of New England Semiconductor Corp. and its wholly-owned subsidiary, of Lawrence, Massachusetts (“NES”). On August 15, 2001, Microsemi CDI, Inc. (“MCDI”), a wholly-owned subsidiary of the Company, acquired the assets of Compensated Devices, Inc., of Melrose, Massachusetts (“CDI”). In the second quarter of fiscal year 2002, the Company started the restructuring/ consolidations of Microsemi Watertown Inc., of Watertown, Massachusetts (“Watertown”) and MCDI into other operations of the Company. In June 2002, the Company completed the sale of the assets, including the real property, of Microsemi RF Products, Inc. (“RF”), a wholly-owned subsidiary of the Company, based in Montgomeryville, Pennsylvania to a subsidiary of Advanced Power Technology Inc., of Bend, Oregon. The Company believes that its Capacity Optimization and Profit Enhancement Program as of July 31, 2002, could result in future annual cost savings of as much as $10 million from the elimination of three redundant facilities and associated staff. The estimated amount of savings excludes the associated Restructuring Charges. The objectives of this program are to increase company-wide capacity utilization and operating efficiencies through consolidations and realignments of operations.

13

Results Of Operations For The Quarter Ended July 1, 2001 Compared To The Quarter Ended June 30, 2002.

Net sales decreased $8.6 million, or 14%, from $60.1 million for the third quarter of fiscal year 2001 to $51.5 million for the third quarter of fiscal year 2002. The decrease was primarily attributable to lower demand for products in the commercial aircraft, commercial space, computers and mobile handsets markets, as well as a delay in expected growth in military business and by the reduction or elimination of revenues generated by subsidiaries that were closed or sold, partially offset by the additions of MNES and MCDI. For the third quarter of fiscal year 2001, PPC, Hong Kong and RF had revenues of $0.0, $0.6 million and $3.0 million, respectively. For the third quarter of fiscal year 2002, MNES, MCDI and RF had revenues of $4.0 million and $2.5 million and $1.4 million, respectively.

Gross profit decreased $4.8 million, or 23%, from $20.5 million for the third quarter of fiscal year 2001 to $15.7 million for the third quarter of fiscal year 2002. As a percentage of sales, gross profit was 30.6% for the third quarter of fiscal year 2002, compared to 34.1% for the third quarter of fiscal year 2001. Gross profit decreased primarily as a result of two factors: 1) Costs of sales in the quarter ended June 30, 2002 included certain costs incurred associated with the Company’s Capacity Optimization and Profit Enhancement Programs that do not qualify as “restructuring costs” under Generally Accepted Accounting Principals (“GAAP”). These costs included a write off of $0.3 million of inventories, $1.0 million of excess manufacturing costs at its Watertown operation, which is being closed, and $0.4 million of expenses to move MCDI from Melrose, Massachusetts to Lawrence, Massachusetts. 2) The remainder of the decrease in gross profit was due to the decline in sales. In the third quarter of fiscal year 2001, PPC had a gross loss of $0.2 million and Hong Kong and RF had gross profits of $0.2 million and $0.4 million, respectively. In the third quarter of fiscal year 2002, MNES, MCDI and RF had gross profits of $1.2 million, $0.9 million and $0.4 million, respectively.

Selling, general and administrative expenses increased $0.4 million, or 4%, from $9.5 million for the third quarter of fiscal year 2001 to $9.9 million for the third quarter of fiscal year 2002, primarily due to the additions of MNES and MCDI and $0.5 million in severance costs associated with the Company’s Capacity Optimization and Profit Enhancement Programs that do not qualify as “restructuring costs” under GAAP, partially offset by the cost savings from closure of PPC and Hong Kong.

Research and development expenses increased $2.0 million, or 49%, from $4.1 million for the third quarter of fiscal year 2001 to $6.1 million for the third quarter of fiscal year 2002. The increase was primarily due to higher spending to develop new higher-margin application-specific products, including Cold Cathode Fluorescence Light (“CCFL”) and Light Emitting Diode (“LED”) drivers, Class-D audio amplifiers and InGaP RF power amplifiers for wireless LAN applications.

Depreciation and amortization expenses for the third quarter were $3.4 million compared to $3.1 million in the third quarter of last year. Amortization of goodwill and other intangible assets increased $0.3 million, due to the increase of non-goodwill intangible assets related to the acquisitions of the assets of NES and CDI in August 2001.

The Company recorded $0.1 million of asset impairments because Management believes estimated future revenues from the impaired assets will be lower than previously anticipated as a result of Management’s decision to discontinue a product line.

Restructuring charges of $0.3 million included $0.2 million of severance payments for terminated employees and $0.1 million for clean up costs.

The Company had $0.2 million of interest expense in the quarter ended June 30, 2002 compared to $0.2 million of interest income in the third quarter of fiscal year 2001 due to lower cash balances and additional interest expense incurred for the notes payable related to the acquisitions by MNES and MCDI.

Other income in the quarter ended June 30, 2002 included a gain of $3.4 million from the sale of RF, partially offset by a loss of $0.3 million from the sale of a building in Florida formerly used by PPC (see Note 9).

The effective tax rate for each of the respective fiscal quarters ended July 1, 2001 and June 30, 2002 was 33.0%.

Results Of Operations For The Nine Months Ended July 1, 2001 Compared To The Nine Months Ended June 30, 2002.

14

Net sales decreased $22.8 million, or 12%, from $186.2 million for the first nine months of fiscal year 2001 to $163.4 million for the first nine months of fiscal year 2002. The decrease was primarily attributable to lower demand for products in the commercial aircraft, commercial space, computers and mobile handsets markets, as well as a delay in expected growth in its military business and by the reduction or elimination of revenues generated by subsidiaries that were closed or sold, partially offset by the additions of MNES and MCDI. For the first nine months of fiscal year 2001, PPC, Hong Kong and RF had revenues of $2.8 million, $2.4 million, and $8.9 million, respectively. For the first nine months of fiscal year 2002, MNES, MCDI and RF had revenues of $11.1 million, $7.9 million and $6.0 million, respectively.

Gross profit decreased $5.1 million, or 8.5%, from $61.0 million for the first nine months of fiscal year 2001 to $55.9 million for the first nine months of fiscal year 2002. Gross profit decreased primarily as a result of two factors: 1) Costs of sales in the nine months ended June 30, 2002 included certain costs incurred associated with the Company’s Capacity Optimization and Profit Enhancement Programs that do not qualify as “restructuring costs” under Generally Accepted Accounting Principals (“GAAP”). These costs included a write off of $1.9 million of inventories, $1.0 million of excess manufacturing cost at its Watertown operation, which is being closed, and $0.4 million of expenses to move MCDI from Melrose, Massachusetts to Lawrence, Massachusetts. 2) The remainder of the decrease in gross profit was due to the decline in sales. As a percentage of sales, gross profit was 34.2% for the first nine months of fiscal year 2002, compared to 32.8% for the first nine months of fiscal year 2001. This increase in gross profit as a percentage of sales was due primarily to certain cost control measures, higher margins on new products, the closure of Hong Kong and PPC and the sale of RF. In the first nine months of fiscal year 2001, PPC, Hong Kong and RF had gross profits of $1.0 million, $0.7 million, and $1.4 million, respectively. In the first nine months of fiscal year 2002, MNES, MCDI and RF had gross profits of $3.3 million, $3.1 million and $1.5 million, respectively.

Selling, general and administrative expenses decreased $0.2 million, or 0.5%, from $29.3 million for the first nine months of fiscal year 2001 to $29.1 million for the first nine months of fiscal year 2002, primarily due to the eliminations or reduction of expenses for Hong Kong, PPC and RF, and lower commission expenses, which resulted from lower sales, partially offset by the additions of expenses for MNES and MCDI. Selling, general and administrative expenses for the first nine months of fiscal year 2002 included $0.5 million in severance costs associated with the Company’s Capacity Optimization and Profit Enhancement Programs that do not qualify as “restructuring costs” under GAAP.

Research and development expenses increased $5.8 million, from $11.3 million, or 51% for the first nine months of fiscal year 2001 to $17.1 million for the first nine months of fiscal year 2002. The increase was primarily due to higher spending to develop new higher-margin application-specific products, including Cold Cathode Fluorescence Light (“CCFL”) and Light Emitting Diode (“LED”) drivers, Class-D audio amplifiers and InGaP RF power amplifiers for wireless LAN applications.

Amortization of goodwill and other intangible assets increased $0.9 million due to the increase of non-goodwill intangible assets related to the acquisitions of the assets of NES and CDI in August 2001.

The Company recorded $1.7 million of asset impairments because Management believes that estimated future revenues from the impaired assets will be lower than previously anticipated as a result of Management’s decision to discontinue a product line. Restructuring charges of $4.1 million included $2.3 million of severance payments for terminated employees and $1.8 million for facility related expenses, which included write-off of $0.6 million of construction in progress, $0.8 million in clean up costs and $0.4 million for penalties related to cancellations of certain contracts with suppliers (see Note 8).

The Company had $0.5 million interest expense in the nine months ended June 30, 2002 compared to $0.5 million of interest income in the nine months ended July 1, 2001 due to lower cash balances and additional interest expense incurred for the notes payable related to the acquisitions of MNES and MCDI.

Other income in the nine ended June 30, 2002 primarily consisted of a gain of $3.4 million from the sale of RF, partially offset by a loss of $0.3 million loss from the sale of a building in Florida (see Note 9).

The effective income tax rate was 33.0% in the respective nine month periods ended July 1, 2001 and June 30, 2002, respectively.

Capital Resources And Liquidity

Net cash provided by operating activities was $15.2 million and $5.8 million for the first nine months of fiscal years 2001 and 2002, respectively. The $9.4 million, or 62%, decrease in net cash provided by operating activities was primarily a result of the $10.4 million decline in income as well as the combined effect of gain on retirements and dispositions of assets and non-cash items included

15

in income or expense, such as depreciation and amortization, impairment of assets, accounts receivable, inventories, other current assets, accounts payable and accrued liabilities.

Net cash used in investing activities was $9.4 million and $3.7 million for the first nine months of fiscal years 2001 and 2002, respectively. The $5.7 million, or 61%, reduction in cash used in investing activities is a result of the Company’s receiving approximately $11.1 million from the sale of RF assets and $1.6 million from the sale of a building in Florida (see Note 9) partially offset by the Company’s purchasing $5.5 million more of property and equipment in the nine months ended June 30, 2002 than in the same period of the prior fiscal year.

Net cash provided by (used in) financing activities was $1.1 million and ($0.4) million for the nine months of fiscal years 2001 and 2002, respectively. The decrease was primarily due to higher payments of debt and lower proceeds from exercises of employee stock options. In March 2002, the Company issued 333,333 shares of Microsemi’s common stock as payment in full for the $2.5 million convertible note related to the acquisition of certain assets of Infinesse Corp.

As a result of the foregoing, at June 30, 2002, Microsemi had $26.3 million in cash and cash equivalents, an increase of $1.5 million, or 6%, from Microsemi’s $24.8 in cash and cash equivalents at September 30, 2001.

At June 30, 2002, Microsemi had $9.0 million in total of long-term portion of long-term debt and other long-term liabilities, down $2 million, or 18%, from the total at September 30, 2001.

Accounts receivable decreased from $38.0 million at September 30, 2001 to $31.1 at the end of the third quarter. This decrease is due to three factors: lower sales, sale of a business and a shift in sales mix to commercial products.

Inventory decreased from $58.9 million at September 30, 2002 to $56.9 million at the end of the third quarter. This decrease was principally due to the sale of the RF business unit.

Nevertheless, at June 30, 2002, Microsemi had a current ratio (the ratio of short-term assets to short-term liabilities) of 3.2 to 1, an increase from such ratio at September 30, 2001, which was then 2.5 to 1.

Microsemi’s operations in the fiscal quarter and nine months ended June 30, 2002 were funded from cash and cash equivalents held at the beginning of the period and with internally generated funds.

The Company has a $30 million credit line with a bank, which includes a facility to issue letters of credit. As of June 30, 2002, $4.1 million was outstanding in the form of letters of credit and there was $25.9 million available under this credit facility. The credit line expires in March 2003 and is collateralized by substantially all of the assets of the Company.

As of June 30, 2002, Microsemi was in compliance with the covenants required by its bank, creditors and lessors.

During the fourth quarter of fiscal year 2002, the Company’s commitments include approximately $10.0 million for the repayment of the promissory notes issued by the Company to purchase the assets of NES and CDI. Accordingly, on August 2, 2002, the Company utilized $6.0 million in cash to pay in full the $5.8 million promissory note payable to NES and $0.2 million in accrued interest. Also in August 2002, the Company shall repay in cash the other $4.0 million note obligation rather than issue shares of Common Stock. The other material capital commitment of the Company during the fourth quarter is an estimated $2.6 million for the consolidation of Watertown and MCDI into other facilities. The Company’s capital expenditures for the 12 months starting July 1, 2002 are estimated to amount to approximately $8.0 million to $10.0 million. The cash utilized to pay plan closure costs is estimated to be possibly $1.0 million.

The Company also continues its program of consolidating its facilities. The Company also intends to sell real property in Watertown, Massachusetts, where Microsemi’s wholly-owned subsidiary is exiting the facility and relocating its manufacturing operations to other existing facilities. Microsemi is expected to complete a sale for cash during the fiscal fourth quarter. Currently the price being negotiated is approximately $6.5 million. The Company also has two additional real estate dispositions which may close in the fourth quarter and may yield minimal cash proceeds. Consistent with its consolidation of facilities, further plant consolidations are anticipated in the longer-term. The realization of such proceeds is not certain; however, the Company is not reliant upon such proceeds for its cash needs. Such proceeds, if and when received, should enhance the Company’s cash position; however, Management believes that the Company’s ability to meet its cash needs is not at all dependent upon the receipt of such proceeds. Microsemi received during the fourth quarter income tax refunds of $7.7 million. Microsemi also anticipates receiving additional income tax refunds during the fourth quarter of as much as $2

16

million. The timing of receipt of such anticipated refunds is subject to action by the Internal Revenue Service and; therefore, could possibly be delayed one or two quarters.

Based upon information currently available, Management believes that Microsemi can meet its current cash requirements and capital commitments with cash balances or internally generated funds from ongoing operations. Management anticipates that Microsemi should have a cash balance of almost $25 million at end of the fourth quarter if, among other things, it completes the sale of the Watertown facility during the quarter.

Please read the information under the heading “IMPORTANT FACTORS RELATED TO FORWARD-LOOKING STATEMENTS AND ASSOCIATED RISKS,” below, which describes and refers to some of the important risks and uncertainties.

Limited Business Outlook

Our book-to-bill ratio for the third quarter was 0.97 to 1. The sales outlook for the fourth quarter of fiscal year 2002 is expected to be flat as compared with the third quarter of fiscal year 2002 after excluding the sales of the RF business unit that was sold in the third quarter. Sales are expected to be $49 to $51 million. Diluted pro forma EPS of $.04 in the third quarter are expected to improve slightly over the third quarter to $0.04 to $0.06 for the fourth quarter. Pro forma earnings exclude amortization of goodwill and other intangible assets, restructuring charges, assets impairment, non-recurring gain (loss) on sales of assets, and the combined income tax effects for these items.

Our outlook and Management’s beliefs and plans stated herein are as of the date hereof, and, like all forward-looking statements, are subject to numerous risks and uncertainties. Undue weight should not be given to forward-looking statements, and the information under the heading “IMPORTANT FACTORS RELATED TO FORWARD-LOOKING STATEMENTS AND ASSOCIATED RISKS,” below, describes and refers to some of the important risks and uncertainties.

17

IMPORTANT FACTORS RELATED TO FORWARD-LOOKING STATEMENTS AND ASSOCIATED RISKS

Some of the statements in this report or incorporated by reference are forward-looking, including, without limitation, the statements under the captions “Management’s Discussion and Analysis of Financial Condition and Results of Operations”. Forward-looking statements include those that contain words like “may,” “will,” “could,” “should,” “project,” “believe,” “anticipate,” “expect,” “plan,” “estimate,” “forecast,” “potential,” “intend,” “maintain,” “continue” and variations of these words or comparable words. In addition, all of the non-historical information herein is forward-looking, including any statement or implication about a future time, result or other circumstance. Forward-looking statements are not a guarantee of future performance and involve risks and uncertainties. Actual results may differ substantially from the results that the forward-looking statements suggest for various reasons. These forward-looking statements are made only as of the date of this report. Microsemi does not undertake to update or revise the forward-looking statements, whether as a result of new information, future events or otherwise.

The forward-looking statements included in this report are based on, among other items, current assumptions that Microsemi will be able to meet its current operating cash and debt service requirements, that Microsemi will be able to successfully resolve disputes and other business matters as anticipated, that competitive conditions within the analog, mixed signal and discrete semiconductor, integrated circuit or custom component assembly industries will not affect the Company materially or adversely, that Microsemi will retain existing key personnel, that Microsemi’s forecasts will reasonably anticipate market demand for its products, and that there will be no other material adverse change in its operations or business. Other factors that could cause results to vary materially from current expectations are referred to elsewhere in this report. Assumptions relating to the foregoing involve judgments that are difficult to make and future circumstances that are difficult to predict accurately or correctly. Forecasting and other management decisions are subjective in many respects and thus susceptible to interpretations and periodic revisions based on actual experience and business developments, the impact of which may cause Microsemi to alter its internal forecasts, which may in turn affect expectations or future results. Microsemi Corporation does not undertake to announce publicly these changes that may occur in our expectations. Readers are cautioned against giving undue weight to any of the forward-looking statements.

Adverse changes to our results could result from any number of factors, including for example fluctuations in economic conditions, potential effects of inflation, lack of earnings visibility, dependence upon certain customers or markets, dependence upon suppliers, future capital needs, rapid technological changes, difficulties in integrating acquired businesses, ability to realize cost savings or productivity gains, potential cost increases, dependence on key personnel, difficulties regarding hiring and retaining qualified personnel in a competitive labor market, risks of doing business in international markets, and problems of third parties.

The inclusion of forward-looking information should not be regarded as a representation by Microsemi or any other person that Management’s objectives or plans will be achieved. Additional factors that could cause results to vary materially from current expectations are discussed under the heading “Important Factors Related to Forward-Looking Statements and Associated Risks” in the Annual Report in the Form 10-K as filed with the Securities and Exchange Commission on December 24, 2001, and elsewhere in that Form 10-K, including but not limited to, under the headings, “Legal Proceedings,” “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” and the notes to the financial statements included therein.

Although the readers may also refer to the risk factors in the previous filings of the company, Microsemi is setting out some of the more relevant risk factors below in full for the convenience of the readers:

Certain effects of the tragic events of terrorism on September 11, 2001 have adversely impacted the demand for certain of our products.

The volume of our products sold for commercial aircraft manufacturing declined after September 11, 2001 as a result of a lessened demand for air travel. This market has not recovered. Also we believe that many of the usual purchasers of industrial products and telecommunications equipment have been deferring or canceling their capital expenditures due to economic uncertainty. Many military programs have been awarded to prime contractors, but are not yet fully funded. Missile, missile defense, weapons systems, smart bomb and radar programs may have been impacted by the higher priority established for homeland security. The Joint Strike Fighter program at Lockheed, Firefinder at Raytheon, JDAM at Boeing, and upgrades to the F15 and F22 aircraft all await this funding. Microsemi high-reliability components are used in all these programs. Full funding is expected at least to begin within the next two quarters. Despite the fact that we expect demand for our products from military and weapons manufacturers to increase, the timing and quantity thereof are difficult to predict.

18

Downturns in the highly cyclical semiconductor industry have adversely affected Microsemi’s operating results and the value of its business.

The semiconductor industry is highly cyclical, and the value of Microsemi’s business has declined during the “down” portion of these cycles. During recent years, the Company as well as many others in its industry, experienced significant declines in the pricing of, as well as demand for, products. The market for semiconductors has experienced severe and prolonged, downturns. In the future, these downturns may prove to be as, or possibly more, severe. The markets for Microsemi’s products depend on continued demand in the mobile connectivity, telecommunications, computers/peripherals, military and aerospace, space/satellite, industrial/commercial and medical markets, and these end-markets have experienced changes in demand that have adversely affected Microsemi’s operating results and financial condition. For instance, presently the commercial satellite market remains in a prolonged downturn, commercial aerospace entered a sharp downturn as a result of events near the beginning of this fiscal year, and telecommunications is impacted by industry-wide overcapacity and several notable financial crises.

The semiconductor business is highly competitive and increased competition could reduce the value of Microsemi.

The semiconductor industry, including the areas in which the Company does business, is highly competitive. The Company expects intensified competition from existing competitors and new entrants. Competition is based on price, product performance, product availability, quality, reliability and customer service. Pricing pressures may emerge. For instance, competitors may attempt to gain a greater market share by lowering prices. The market for commercial products is characterized by declining selling prices. The Company anticipates that its average selling prices will continue to decrease in future periods, although the timing and amount of these decreases cannot be predicted with any certainty. The pricing pressure in the semiconductor industry in recent years has been due primarily to the Asian currency crisis, industry-wide excess manufacturing capacity, weak economic growth outside the United States; the slowdown in capital spending that followed the “dot-com” collapse, the reduction in capital spending by telecom companies and satellite companies, and certain effects of the tragic events of terrorism on September 11, 2001. The Company competes in various markets with companies of various sizes, many of which are larger and have greater financial and other resources than the Company has, and thus may be better able to pursue acquisition candidates and to withstand adverse economic or market conditions. In addition, companies not currently in direct competition with Microsemi may introduce competing products in the future. The Company has numerous competitors. Some of Microsemi’s current major competitors are Motorola, Inc., National Semiconductor Corporation, Texas Instruments, Inc., Philips Electronics, ON Semiconductor, L.L.C., Fairchild Semiconductor Corporation, Micrel Incorporated, International Rectifier Corporation, Semtech Corporation, Linear Technology Corp., Alpha Industries, Inc., Diodes, Inc., Vishay Intertechnology, Inc. and its subsidiary Siliconix Incorporated. Some of Microsemi’s competitors in developing markets are Triquint Semiconductor, Inc., Mitel Corporation, RF Micro Devices, Inc., Conexant Systems, Inc., Anadigics, Inc. and Alpha Industries, Inc. The Company may not be able to compete successfully in the future or competitive pressures may harm its financial condition, operating results or cash flows.

New technologies could result in the development of competing products and a decrease in demand for Microsemi’s products.

Microsemi’s financial performance depends on its ability to design, develop, manufacture, assemble, test, market and support new products and enhancements on a timely and cost-effective basis. Microsemi’s failure to develop new technologies or to react to changes in existing technologies could materially delay its development of new products, which could result in product obsolescence, decreased revenues and/or a loss of its market share to competitors. Rapidly changing technologies and industry standards, along with frequent new product introductions, characterize much of the semiconductor industry. A fundamental shift in technologies in Microsemi’s product markets could have a material adverse effect on its competitive position within the industry.

For instance, presently Microsemi is challenged to develop new products for use with various alternative wireless LAN standards, such as 802.11a, 802.11b and 802.11g and combinations thereof. Although this development has already resulted in design wins related to 802.11a, the solutions related to the other standards and the combination of all of the standards are still in development. The success of products using various standards is subject to rapid changes in market preferences and advancements in competing technologies.

Failure to protect Microsemi’s proprietary technologies or maintain the right to use certain technologies may negatively affect Microsemi’s ability to compete.

19

The Company relies heavily on its proprietary technologies. Microsemi’s future success and competitive position may depend in part upon its ability to obtain or maintain protection of certain proprietary technologies used in its principal products. The Company does not have significant patent protection, and does not generally apply for patents, on many aspect of Microsemi’s technology. Microsemi’s reliance upon protection of some of its technology as “trade secrets” will not necessarily protect the Company from the use by other persons of Microsemi’s technology, or their use of technology that is similar or superior to that which is embodied in Microsemi’s trade secrets. Others may be able to independently duplicate or exceed Microsemi’s technology in whole or in part. The Company may not be successful in maintaining the confidentiality of its technology, dissemination of which could have a material adverse effect on Microsemi’s business. In addition, litigation may be necessary to determine the scope and validity of Microsemi’s proprietary rights. In instances in which the Company holds any patents or patent licenses, any patents held by Microsemi may be challenged, invalidated or circumvented, or the rights granted under any patents may not provide Microsemi competitive advantages. Patents often provide only narrow protection and require public disclosure of information that may otherwise be subject to trade secret protection. Also patents expire and are not renewable. Obtaining or protecting Microsemi’s proprietary rights may require the Company to defend claims of intellectual property infringement by Microsemi’s competitors. While the Company is not currently engaged as a defendant in intellectual property litigation that the Company believes will have a material adverse effect, the Company could become subject to lawsuits in which it is alleged that the Company has infringed upon the intellectual property rights of others.

If any such infringements exist, arise or are claimed in the future, the Company may be exposed to substantial liability for damages and may need to obtain licenses from the patent owners, discontinue or change Microsemi’s processes or products or expend significant resources to develop or acquire non-infringing technologies. The Company may not be successful in such efforts or such licenses may not be available under reasonable terms. Microsemi’s failure to develop or acquire non-infringing technologies or to obtain licenses on acceptable terms or the occurrence of related litigation itself could have a material adverse effect on Microsemi’s operating results, financial condition and cash flows.

Future business could be adversely affected by delays in production of compound semiconductor technology.

The Company utilizes process technology to manufacture compound semiconductors such as gallium arsenide (GaAs), indium gallium phosphide (InGaP), silicon germanium (SiGe), indium gallium arsenide phosphide (InGaAsP) and silicon carbide (SiC) primarily to manufacture semiconductor components. The Company is pursuing this development effort internally as well as with third party foundries. Microsemi’s efforts sometimes may not result in commercially successful products. Certain of Microsemi’s competitors offer this capability and Microsemi’s customers may purchase their requirements for these products from Microsemi’s competitors. The third party foundries that the Company uses may delay or fail to deliver to Microsemi technology and products. Microsemi’s business and prospects could be materially and adversely affected by delay or Microsemi’s failure to produce these products.

Compound semiconductor products may not successfully compete with silicon-based products.

Microsemi’s choices of technologies for development and future implementation may not reflect future market demand. The production of GaAs, InGaP, SiGe, InGaAsP or SiC integrated circuits is more costly than the production of silicon circuits, and the Company believes it will continue in the future to be more costly. The costs differ because of higher costs of raw materials, lower production yields and higher unit costs associated with lower production volumes. Silicon semiconductor technologies are widely used process technologies for integrated circuits, and these technologies continue to improve in performance. As a result, the Company must offer compound semiconductor products that provide vastly superior performance to that of silicon for specific applications in order for them to be competitive with silicon products. If the Company does not offer compound semiconductor products that provide sufficiently superior performance to offset the cost differential and otherwise successfully compete with silicon-based products, Microsemi’s operating results may be materially and adversely affected. In addition, other alternatives exist and are being developed, and may have superior performance or lower cost.

The Company may not be able to develop new products to satisfy changes in demand.

The Company may be unsuccessful in its efforts to identify new product opportunities and develop and bring products to market in a timely and cost-effective manner. Products or technologies developed by others may

20

render Microsemi’s products or technologies obsolete or noncompetitive. In addition, to remain competitive, the Company must continue to reduce package sizes, improve manufacturing yields and expand its sales. The Company may not be able to accomplish these goals. For instance the Company presently plans to develop and introduce approximately 38-42 new products in fiscal year 2002. Designs we have introduced recently include primarily integrated circuits and subsystems such as class D audio subsystems for newly-introduced home theatre DVD players supporting 5.1 surround sound, PDA backlighting subsystems, backlight control and power management solutions for the automotive market, LED driver solutions and power amplifiers for certain wireless LAN components. Their success will be subject to all of the risks and uncertainties mentioned above and below.

The Company must commit resources to product production prior to receipt of purchase commitments and could lose some or all of the associated investment.

The Company sells products primarily pursuant to purchase orders for current delivery, rather than pursuant to long-term supply contracts. Many of these purchase orders may be revised or canceled without penalty. As a result, the Company must commit resources to the production of products without any advance purchase commitments from customers. Microsemi’s inability to sell products after the Company devotes significant resources to them could have a material adverse effect on Microsemi’s business, financial condition, results of operations and cash flows.

Variability of Microsemi’s manufacturing yields may affect its gross margins.

Microsemi’s manufacturing yields vary significantly among products, depending on the complexity of a particular integrated circuit’s design and Microsemi’s experience in manufacturing that type of integrated circuit. The Company has in the past experienced difficulties in achieving planned yields, which have adversely affected Microsemi’s gross margins.

The fabrication of integrated circuits is a highly complex and precise process. Problems in the fabrication process can cause a substantial percentage of wafers to be rejected or numerous integrated circuits on each wafer to be nonfunctional, thereby reducing yields. These difficulties include:

· Defects in masks, which are used to transfer circuit patterns onto Microsemi’s wafers;

· Impurities in the materials used;

· Contamination of the manufacturing environment; and

· Equipment failure.

Because a large portion of Microsemi’s costs of manufacturing is relatively fixed, and average selling prices for Microsemi’s products tend to decline over time, it is critical for Microsemi to improve the number of shippable integrated circuits per wafer and increase the production volume of wafers in order to maintain and improve its results of operations. Yield decreases can result in substantially higher unit costs, which could materially and adversely affect Microsemi’s operating results and have done so in the past. Moreover, Microsemi’s process technology has primarily used standard silicon semiconductor manufacturing equipment, and production yields of compound integrated circuits have been relatively low compared with silicon integrated circuit devices. The Company may be unable to continue to improve yields in the future, and the Company may suffer periodic yield problems, particularly during the early production of new products or introduction of new process technologies. In either case, Microsemi’s results of operations could be materially and adversely affected.

Inventories may become obsolete.

The life cycles of some of Microsemi’s products depend heavily upon the life cycles of the end products into which Microsemi’s products are designed. Products with short life cycles require Microsemi to manage closely its production and inventory levels. Inventory may also become obsolete because of adverse changes in end-market demand. For instance, in fiscal year 1999, the Company recorded a charge of $6.0 million for obsolete inventory. The Company may in the future be adversely affected by obsolete or excess inventories which may result from unanticipated changes in the estimated total demand for Microsemi’s products or the estimated life cycles of the end products into which Microsemi’s products are designed.

21

International operations and sales expose Microsemi to material risks.

Revenues from foreign markets represent a significant portion of total revenues. The Company maintains facilities or contracts with entities in Thailand, the Philippines, Taiwan, Ireland, Hong Kong, India, Mexico and China. There are risks inherent in doing business internationally, including:

• changes in, or impositions of, legislative or regulatory requirements, including tax laws in the United States and in the countries in which the Company manufacture or sell its products;

• Trade restrictions;

• Transportation delays;

• Work stoppages;

• Economic and political instability;

• Changes in import/export regulations, tariffs and freight rates;

• Difficulties in collecting receivables and enforcing contracts generally; and

• Currency exchange rate fluctuations.

In addition, the laws of certain foreign countries may not protect Microsemi’s products, assets or intellectual property rights to the same extent as do U.S. laws. Therefore, the risk of piracy of Microsemi’s technology and products may be greater in those foreign countries. Although the Company has not experienced any material adverse effect on Microsemi’s operating results as a result of these and other factors, the Company may experience a material adverse effect on its financial condition, operating results and cash flows in the future.

Delays in beginning production at new facilities, implementing new production techniques or resolving problems associated with technical equipment malfunctions could adversely affect Microsemi’s manufacturing efficiencies.

Microsemi’s manufacturing efficiency will be an important factor in its future profitability, and the Company may be unsuccessful in its efforts to maintain or increase its manufacturing efficiency. Microsemi’s manufacturing processes are highly complex, require advanced and costly equipment and are continually being modified in an effort to improve yields and product performance. The Company has from time to time experienced difficulty in beginning production at new facilities or in effecting transitions to new manufacturing processes. As a consequence, the Company have experienced delays in product deliveries and reduced yields. The Company may experience manufacturing problems in achieving acceptable yields or experience product delivery delays in the future as a result of, among other things, capacity constraints, construction delays, upgrading or expanding existing facilities or changing its process technologies, any of which could result in a loss of future revenues. Microsemi’s operating results also could be adversely affected by the increase in fixed costs and operating expenses related to increases in production capacity if revenues do not increase proportionately.

Interruptions, delays or cost increases affecting Microsemi’s materials, parts, equipment or subcontractors may impair its competitive position.

Microsemi’s manufacturing operations depend upon obtaining adequate supplies of materials, parts and equipment, including silicon, mold compounds and lead frames, on a timely basis from third parties. Microsemi’s results of operations could be adversely affected if the Company is unable to obtain adequate supplies of materials, parts and equipment in a timely manner or if the costs of materials, parts or equipment increase significantly. From time to time, suppliers may extend lead times, limit supplies or increase prices due to capacity constraints or other factors. Although the Company generally uses materials, parts and equipment available from multiple suppliers, the Company has a limited number of suppliers for some materials, parts and equipment. While the Company believes that alternate suppliers for these materials, parts and equipment are available, an interruption could materially impair Microsemi’s operations.

Some of Microsemi’s products are assembled and tested by third-party subcontractors. The Company generally does not have any long-term agreements with these subcontractors. As a result, the Company may not have assured control over its product delivery schedules or product quality. Due to the amount of time typically required to qualify assemblers and testers, the Company could experience delays in the shipment of its products if the

22

Company is forced to find alternate third parties to assemble or test them. Any product delivery delays in the future could have a material adverse effect on Microsemi’s operating results, financial condition and cash flows. Microsemi’s operations and ability to satisfy customer obligations could be adversely affected if its relationships with these subcontractors were disrupted or terminated.

The Company depends on third party subcontractors in Asia for assembly and packaging of a portion of Microsemi’s products. The packaging of Microsemi’s products is performed by a limited group of subcontractors and some of the raw materials included in Microsemi’s products are obtained from a limited group of suppliers. Although the Company seeks to reduce its dependence on sole or limited source suppliers, disruption or termination of any of these sources could occur and such disruptions or terminations could harm Microsemi’s business and operating results. In the event that any of Microsemi’s subcontractors were to experience financial, operational, production or quality assurance difficulties resulting in a reduction or interruption in supply to the Company, Microsemi’s operating results would suffer until alternate subcontractors, if any, were to become available.

The Company anticipates that many of its next-generation products may be manufactured by third party subcontractors in Asia, and to the extent that such potential manufacturing relationships develop, they may be with a limited group of manufacturers. Therefore, any disruptions or terminations of manufacturing could harm Microsemi’s business and its operating results.

Fixed costs may reduce operating results if Microsemi’s sales fall below expectations.

Microsemi’s expense levels are based, in part, on its expectations as to future sales. Many of Microsemi’s expenses, particularly those relating to capital equipment and manufacturing overhead, are relatively fixed. The decreasing lead times between orders and shipments and customers’ ordering practices could adversely affect Microsemi’s ability to project future sales. The Company may be unable to reduce spending quickly enough to compensate for reductions in sales. Accordingly, shortfalls in sales may materially and adversely affect Microsemi’s operating results.

Reliance on government contracts for a portion of Microsemi’s sales could have a material adverse effect on results of operations.

Some of Microsemi’s sales in are derived from customers whose principal sales are to the United States Government. If the Company experiences significant reductions or delays in procurements of its products by the United States Government or terminations of government contracts or subcontracts, Microsemi’s operating results could be materially and adversely affected. Generally, the United States Government and its contractors and subcontractors may terminate their contracts with Microsemi for cause or for convenience. The Company has in the past experienced terminations of government contracts. Certain contracts are also subject to price renegotiation in accordance with U.S. Government procurement provisions. The Company cannot guarantee that it will not experience terminations or renegotiations of government contracts in the future. A significant portion of Microsemi’s sales are to military and aerospace markets, which are subject to the uncertainties of governmental appropriations and national defense policies and priorities. These sales are derived from direct and indirect business with the U.S. Department of Defense, or DOD, and other U.S. government agencies. Since fiscal year 1990, the Company had experienced declining defense-related sales, primarily as a result of contract award delays and reduced military program funding. Furthermore, on August 22, 1994, the DOD adopted acquisition reform. Thereafter, the policy has been to utilize best commercial practices instead of mandatory use of military standard parts. Military-related business is and has been anticipated to increase; however, the actual timing and amount of an increase has been occurring at a rate that has been slower than expected. The effects of defense spending increases are difficult to estimate and subject to many sources of delay. Microsemi’s prospects for additional defense-related sales may be adversely affected in a material manner by numerous events or actions outside our control.

There may be unanticipated costs associated with increasing Microsemi’s capacity.

The Company anticipates that future growth of its business may require increased manufacturing capacity. The Company is in the process of converting a portion of its existing silicon device manufacturing capacity to compound semiconductor production capability. Expansion activities such as these are subject to a number of risks, including:

Unavailability or late delivery of the advanced, and often customized, equipment used in the production of Microsemi’s products;

23

• Delays in bringing new production equipment on-line;

• Delays in supplying products to Microsemi’s existing customers; and

• Unforeseen environmental or engineering problems relating to existing or new facilities.

These and other risks may affect the ultimate cost and timing of Microsemi’s present or future expansion of its capacity.

Microsemi may fail to attract or retain the qualified technical, sales, marketing and managerial personnel required to operate its business successfully.

Microsemi’s future success depends, in part, upon its ability to attract and retain highly qualified technical, sales, marketing and managerial personnel. Personnel with the necessary expertise are scarce and competition for personnel with these skills is intense. Also, attrition in personnel can result from, among other things, changes related to acquisitions, as well as retirement or disability. The Company may not be able to retain existing key technical, sales, marketing and managerial employees or be successful in attracting, assimilating or retaining other highly qualified technical, sales, marketing and managerial personnel in the future. If the Company is unable to retain existing key employees or is unsuccessful in attracting new highly qualified employees, its business, financial condition and results of operations could be materially and adversely affected.

Failure to manage consolidation of operations effectively could adversely affect Microsemi’s ability to increase revenues and improve earnings.

Microsemi’s ability to successfully offer its products in the semiconductor market requires effective planning and management processes. Microsemi’s Capacity Optimization and Profit Enhancement Program, with its consolidations and realignments of operations, and Microsemi’s expected future growth, may place a significant strain on its management systems and resources, including Microsemi’s financial and managerial controls, reporting systems and procedures. In addition, the Company will need to continue to train and manage its workforce worldwide.

Microsemi may engage in future acquisitions that dilute the ownership interests of its stockholders, cause the Company to incur debt and assume contingent liabilities.

As part of Microsemi’s business strategy, the Company expects to review acquisition prospects that would complement its current product offerings, enhance its design capability or offer other growth opportunities. While the Company have no current agreements and no active negotiations underway with respect to any acquisitions, the Company may acquire businesses, products or technologies in the future. In the event of future acquisitions, the Company could:

• Use a significant portion of its available cash;

• Issue equity securities, which would dilute current stockholders’ percentage ownership;

• Incur substantial debt;

• Incur or assume contingent liabilities, known or unknown;

• Incur expenses related to goodwill or other intangibles; and

• Incur large, immediate accounting write-offs.

Such actions by Microsemi could harm its operating results and/or the price of its common stock.

Microsemi has acquired and may acquire other companies and may be unable successfully to integrate such companies with its operations.

24

The Company has in the past acquired a number of businesses or companies, and additional product lines and assets. The Company may continue to expand and diversify its operations with additional acquisitions. If the Company is unsuccessful in integrating these companies or product lines with its operations, or if integration is more difficult than anticipated, the Company may experience disruptions that could have a material adverse effect on its business, financial condition and results of operations. Some of the risks that may affect Microsemi’s ability to integrate or realize any anticipated benefits from the acquired companies, businesses or assets include those associated with:

• Unexpected losses of key employees or customers of the acquired company;

• Conforming the acquired company’s standards, processes, procedures and controls with Microsemi’s operations;

• Coordinating Microsemi’s new product and process development;

• Hiring additional management and other critical personnel;

• Increasing the scope, geographic diversity and complexity of Microsemi’s operations;

• Difficulties in consolidating facilities and transferring processes and know-how;

• Other difficulties in the assimilation of acquired operations, technologies or products;

• Diversion of management’s attention from other business concerns; and

• Adverse effects on existing business relationships with customers.

The Company has sold or disposed of certain subsidiaries or divisions with a resulting reduction in volume that may not be replaceable in the ordinary course.

Since the beginning of fiscal year 2001, the Company closed Microsemi PPC Inc. and ceased the operations at Microsemi (H.K.) Ltd. (Hong Kong). The Company also sold the business of Microsemi RF Products, Inc. in June 2002, which Management believes would have contributed revenues of approximately $2 million to $2.3 million per quarter to the Company’s consolidated revenues. The Company currently anticipates closure or sale of additional facilities accounting for some portion of its revenues and net income. Closure or disposition of facilities may result in loss of revenues. The Company may be unsuccessful in its efforts to replace the revenues and income of those discontinued operations. While the Company hopes to increase its manufacturing capacity utilization rates at remaining operations, the remaining operations also will bear the corporate administrative and overhead costs which had been allocated to the discontinued business units.

Microsemi’s products may be found to be defective and the Company may not have sufficient liability insurance.

One or more of Microsemi’s products may be found to be defective after the Company has already shipped the products in volume, requiring a product replacement or recall. The Company may also be subject to product returns that could impose substantial costs and have a material and adverse effect on its business, financial condition and results of operations. Microsemi’s aerospace (including aircraft), military, medical and satellite businesses in particular expose the Company to potential liability risks that are inherent in the manufacturing and marketing of high reliability electronic components for critical applications.

The Company may be subject to product liability claims with respect to its products. Microsemi’s product liability insurance coverage may be insufficient to pay all such claims. Product liability insurance may become too costly for Microsemi or may become unavailable to Microsemi in the future. The Company may not have sufficient resources to satisfy any product liability claims not covered by its insurance.

Environmental liabilities could adversely impact Microsemi’s financial position.

Federal, state and local laws and regulations impose various restrictions and controls on the discharge of materials, chemicals and gases used in Microsemi’s semiconductor manufacturing processes. In addition, under some laws and regulations, the Company could be held financially responsible for remedial measures if

25

Microsemi’s properties are contaminated or if the Company sends waste to a landfill or recycling facility that becomes contaminated, even if the Company did not cause the contamination. Also, the Company may be subject to common law claims if the Company releases substances that damage or harm third parties. Further, future changes in environmental laws or regulations may require additional investments in capital equipment or the implementation of additional compliance programs in the future. Any failure to comply with environmental laws or regulations could subject the Company to serious liabilities and could have a material adverse effect on its operating results and financial condition.

In the conduct of Microsemi’s manufacturing operations the Company has handled and do handle materials that are considered hazardous, toxic or volatile under federal, state and local laws. The risk of accidental release of such materials cannot be completely eliminated. In addition, the Company operates or owns facilities located on or near real property that was formerly owned and operated by others. These properties were used in ways that involved such hazardous materials. Contaminants may migrate from or within or through property. These risks may give rise to claims. Where third parties are responsible for contamination, the third parties may not have funds, or make funds available when needed, to pay remediation costs imposed under environmental laws and regulations.

In Broomfield, Colorado, the Company has an agreement with prior owners of Microsemi’s property concerning clean-up costs associated with TCE and other contaminants present in the soil and groundwater. The Company has agreed to pay 10% and they have agreed to pay 90% of these costs. They have also agreed to indemnify the Company from claims by third parties. The Company is not yet able to predict a possible range of the total additional costs that may be incurred in connection with this property.

Some of Microsemi’s facilities are located near major earthquake fault lines.

Microsemi’s headquarters and two of Microsemi’s major operating facilities, and certain other critical business operations are located near major earthquake fault lines. The Company could be materially and adversely affected in the event of a major earthquake. Although the Company maintains earthquake insurance, the insurance coverage may be insufficient, and in the future Microsemi’s insurance coverage may be limited or discontinued.

Delaware law and Microsemi’s charter documents contain provisions that could discourage or prevent a potential takeover of Microsemi that might otherwise result in Microsemi’s stockholders receiving a premium over the market price for their shares.

Provisions of Delaware law and Microsemi’s certificate of incorporation and bylaws could make more difficult the acquisition of Microsemi by means of a tender offer, a proxy contest, or otherwise, and the removal of incumbent officers and directors. These provisions include:

• The Shareholder Rights Plan, which provides that an acquisition of 20% or more of the outstanding shares without Microsemi’s Board’s approval or ratification results in dilution to the acquiror;

• Section 203 of the Delaware General Corporation Law, which prohibits a merger with a 15%-or-greater stockholder, such as a party that has completed a successful tender offer, until three years after that party became a 15%-or-greater stockholder; and

• The authorization in the certificate of incorporation of undesignated preferred stock, which could be issued without stockholder approval in a manner designed to prevent or discourage a takeover or in a way which may dilute an investment in the Common Stock.

In connection with its charter, the Company has a Shareholder Rights Plan, and each share of Common Stock, par value $.20, entitles the holder to one redeemable and cancelable Right (not presently exercisable) to acquire a fractional share of Series A Junior Participating Preferred Stock, under the terms and conditions as set forth in a Shareholder Rights Agreement. The existence of the Rights may make more difficult or impracticable a hostile change of control of the Company, which therefore may affect the anticipated return on an investor’s investment in the Common Stock.

The volatility of Microsemi’s stock price could affect the value of an investment in Microsemi’s stock and Microsemi’s future financial position.

26

The market price of Microsemi’s stock has fluctuated widely. Between October 1, 2001 and July 30, 2002, the closing price of Microsemi’s common stock ranged between a low of $5.28 and a high of $38.97. On July 30, 2002, Microsemi’s common stock closed at $5.75 per share. The current market price of Microsemi’s common stock may not be indicative of future market prices, and the Company may not be able to sustain or increase the value of Microsemi’s common stock. Declines in the market price of Microsemi’s stock would adversely affect Microsemi’s ability to retain personnel with higher-priced stock incentives, to acquire businesses or assets in exchange for stock and/or to conduct future financing activities with the sale of stock.

Microsemi may have increasing difficulty to attract and hold outside Board members.

The directors and management of publicly traded corporations are increasingly concerned with the extent of their personal exposure to lawsuits and shareholder claims, as well as governmental and creditor claims which may be made against them in connection with their positions with publicly-held companies. Outside directors are becoming increasingly concerned with the availability of directors and officer’s liability insurance to pay on a timely basis the costs incurred in defending shareholder claims. Directors and officers liability insurance has recently become much more expensive than it had been. It has become increasingly more difficult to attract and retain qualified outside directors to serve on Microsemi’s Board.

Microsemi may not make the sales that are indicated by the order backlog and the backlog number may become less meaningful.

Lead times for the release of purchase orders depend upon the scheduling practices of individual customers, and delivery times of new or non-standard products can be affected by scheduling factors and other manufacturing considerations. The rate of booking new orders can vary significantly from month to month. Customers frequently change their delivery schedules or cancel orders. For these various reasons, Microsemi’s order backlog may not be an indication of future sales.

The percentage of Microsemi’s business represented by space/satellite and military products may decline. If this occurs the Company anticipate that backlog will become less meaningful. Microsemi’s space/satellite business is characterized by long lead times; however Microsemi’s other end markets tend to place orders with short lead times. Prospective investors should not place undue reliance on Microsemi’s backlog numbers or changes in backlog numbers. The Company determines backlog based on firm orders which are scheduled for delivery within 12 months.

There may be some potential effects of system outages.

Risks are presented by electrical or telecommunications outages, computer hacking or other general system failure. To try to manage Microsemi’s operations efficiently and effectively, the Company relies heavily on its internal information and communications systems and on systems or support services from third parties. Any of these are subject to failure. System-wide or local failures that affect Microsemi’s information processing could have material adverse effects on Microsemi’s business, financial condition, results of operations and cash flows. In addition, insurance coverage for the risks described above may be unavailable.

There may be potential U.S. tax effects on purchasers of common stock.

Each prospective purchaser should consult a tax advisor with respect to current and possible future tax consequences of acquiring, holding and disposing of common stock as well as any tax consequences that may arise under the laws of the U.S., any state in the U.S., or of any municipality or other local taxing jurisdiction. In addition, if you are not a citizen or resident of the U.S., or a corporation or partnership created in or organized under the laws of the U.S., or any political subdivision thereof, then you should consult your tax advisor about U.S. federal income and estate taxes, as well as foreign, state and local tax consequences that may be relevant to you in light of your personal circumstances.

There may be potential impairments that adversely affect our balance sheet and earnings.

Companies recently have become subject to Statement of Financial Accounting Standards No. 142, which changes the accounting for goodwill from an amortization method to an impairment-only approach. Microsemi has accounted for its acquisitions in 2001 in accordance with this standard, and this standard will become effective on a Company-wide basis at the beginning of the first quarter of fiscal year 2003. From time to time, Microsemi may

27

reassess whether there has been an impairment of its goodwill, which would result in a charge to earnings and a reduction in goodwill on its balance sheet.

28

Item 3.    QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

The Company is exposed to various market risks, including changes in foreign currency exchange rates and changes in interest rates. Market risk is the potential loss arising from adverse changes in exchange rates and prices.

The Company conducts business in a number of foreign currencies, principally those of Europe and Asia, directly or in its foreign operations. The Company may receive some revenues in foreign currencies and purchase some inventory in foreign currencies. Accordingly, Microsemi is exposed to transaction gains and losses that could result from changes in exchange rates of foreign currencies relative to the U.S. dollar. Transactions in foreign currencies have represented a relatively small portion of the Company’s business. Also these currencies have been relatively stable against the U.S. dollar for the past several years. As a result, foreign currency fluctuations have not had a material impact historically on Microsemi’s revenues or results of operations. However, there can be no assurance that those currencies will remain stable relative to the U.S. dollar or that future fluctuations in the value of foreign currencies will not have material adverse effects on the results of operations, cash flows and financial condition of the Company. The largest foreign currency exposure of the Company results from activity in British pounds and the European Union Euro. The Company has not conducted a foreign currency hedging program thus far. The Company has considered and may continue to consider the adoption of a foreign currency hedging program.

The Company did not enter into derivative financial instruments and did not enter into any other financial instruments for trading, speculative purposes or managing its interest rate risk. The Company’s other financial instruments consist primarily of cash, accounts receivable, accounts payable, and long-term obligations. The Company’s exposure to market risk for changes in interest rates relates primarily to short-term investments and short-term obligations. As a result, the Company does not expect fluctuations in interest rates to have a material impact on the fair value of these instruments. The Company does not engage in transactions intended to hedge its exposure to changes in interest rates.

The Company maintains a $30.0 million revolving line of credit, which expires in March 2003. The line of credit is collateralized by substantially all of the assets of the Company. It bears interest at the bank’s prime rate plus 0.75% to 1.5% per annum or, at the Company’s option, at the Eurodollar rate plus 1.75% to 2.5% per annum. The interest rate is determined by the ratio of total funded debt to Earnings Before Interest, Taxes, Depreciation and Amortization (“EBITDA”).

On August 2, 2001, in connection with an acquisition of operating assets, the Company issued a one-year promissory note in the original principal amount of approximately 5.8 million with an adjustable interest rate of between 4% and 24%. The actual interest rate within the range is to be determined by dividing the market price of the common stock on the maturity date by the market price of the common stock on the issuance date and subtracting one (1) therefrom. The Company is recording an interest expense at the Company’s market rate at the date of acquisition.

29

PART II—OTHER INFORMATION

Item 1.    Legal Proceedings

On October 31, 2000, Mitel Semiconductor, Inc. (“Mitel”) filed a Complaint in the Orange County Superior Court under Case No. 00CC13101 against the Company and two of its employees. During the period covered by this report, the case was settled by mutual agreement and a dismissal with prejudice was obtained. The settlement did not affect the financial condition or results of operations of Microsemi as Microsemi did not incur any material expense on account of the settlement.

The Company is involved in various pending litigation matters, arising out of the normal conduct of its business, including from time to time litigation relating to commercial transactions, contracts, and environmental matters. In the opinion of Management, the final outcome of these matters will not have a material adverse effect on the Company’s financial position, results of operations or cash flows.

Item 2.    Changes in Securities

None

Item 3.    Defaults Upon Senior Securities

Inapplicable

Item 4.    Submission of Matters to a Vote of Security Holders

Inapplicable

Item 5.    Other information

In June 2002, the Company completed the sale of the assets, including the real property, of Microsemi RF Products, Inc., a wholly-owned subsidiary of the Company, based in Montgomeryville, Pennsylvania to Advanced Power Technology Inc., of Bend, Oregon. Under the agreement, the company received $11.1 million in cash, net of selling expenses, and recorded a gain of approximately $3.4 million. Management believes that the disposed operation would have contributed approximately $2 million to $2.3 million per quarter toward Microsemi’s consolidated revenues.

On May 14, 2002, the size of the Board of Directors was increased to eight members upon the election of Nick E. Yocca and Dennis R. Leibel, and the resignation of Carmelo J. Santoro, Ph.D., who resigned for personal reasons.

As of July 31, 2002, the Company appointed Ralph Brandi Executive Vice President and Chief Operations Officer.

On June 28, 2002, the Company paid Philip Frey, Jr., the Company’s Chairman of the Board, $728,119, pursuant to an agreement to discharge and extinguish the Company’s remaining obligations to Mr. Frey pursuant to the Supplemental Executive Retirement Plan dated September 15, 1986 (the “SERP”).

Mr. Frey informed the Company that on June 24, 2002, Mr. Frey received notice that 100,000 shares of Microsemi Common Stock held in a margin account were sold at about $7.80 to satisfy a margin call that occurred while he was on vacation. On that day the closing sale price of Microsemi Common Stock was $7.95. Mr. Frey stated that he did not exercise any discretion in connection with such sale.

Mr. Frey informed the Company that on June 28, 2002, Mr. Frey received notice that 25,000 shares of Microsemi Common Stock held in a margin account were sold to satisfy a margin call that occurred while he was on vacation. Mr. Frey stated that he did not exercise any discretion in

30

connection with such sale. Mr. Frey informed the Company that the sale price was $6.58. The closing sale price on that date reported by Nasdaq was $6.60.

The book-to-bill ratio for the third quarter was 0.97.

Item 6.    Exhibits and Reports on Form 8-K

(a) Exhibits:

2.4	Asset Purchase Agreement, dated as of May 7, 2002, by and between Microsemi RF Products, Inc. and RF Acquisition Sub, Inc., excluding the following exhibits and schedules: Assignment of License and Assignment and Assumption Agreement; Allocation of Purchase Price; Bill of Sale and Assumption Agreement; Warranty Deed, and Disclosure Schedules (all of which will be provided to the Securities and Exchange Commission upon its request).
10.85.1	First Amendment dated as of June 25, 1999 to Credit Agreement dated April 2, 1999
10.85.2	Second Amendment dated as of February 14, 2000 to Credit Agreement dated April 2, 1999
10.85.3	Third Amendment dated as of April 2, 2001 to Credit Agreement dated April 2, 1999
10.85.4	Fourth Amendment dated as of May 25, 2002 to Credit Agreement dated April 2, 1999
99.1	Certified Written Statement.

(b) Reports on Form 8-K:

The Company filed a Form 8-K dated April 25, 2002, filed April 26, 2002, reporting under Items 7 and 9 a press release announcing second quarter results and a webcast of the Second Quarter Conference Call.

After the end of the quarter which is the subject of this Report, the Company filed a Form 8-K dated June 28, 2002, filed July 1, 2002, reporting under Item 5 that on June 28, 2002, the Company paid Philip Frey, Jr., the Company’s Chairman of the Board, $728,119, pursuant to an agreement to discharge and extinguish the Company’s remaining obligations to Mr. Frey pursuant to the Supplemental Executive Retirement Plan dated September 15, 1986 (the “SERP”). The Form 8-K also reported under Item 9 that on June 24, 2002, Mr. Frey received notice that 100,000 shares of Microsemi Common Stock held in a margin account were sold at about $7.80 each to satisfy a margin call that occurred while he was on vacation.

After the end of the quarter which is the subject of this Report, the Company filed a Form 8-K dated June 28, 2002, filed July 2, 2002, reporting under Item 9 that Mr. Philip Frey, Jr. received notice that 25,000 shares of Microsemi Common Stock held in a margin account were sold at $6.58 each to satisfy a margin call that occurred while he was on vacation.

31

SIGNATURES

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

MICROSEMI CORPORATION

By:    /s/  DAVID R. SONKSEN

David R. Sonksen

Executive Vice President and  Chief Financial Officer 

(Principal Financial Officer and

Chief Accounting Officer and duly

authorized to sign on behalf of the

Registrant)

Dated: August 9, 2002

32

MICROSEMI CORPORATION

EXHIBIT INDEX

Exhibit No.	Description
2.4	Asset Purchase Agreement, dated as of May 7, 2002, by and between Microsemi RF Products, Inc. and RF Acquisition Sub, Inc., excluding the following exhibits and schedules: Assignment of License and Assignment and Assumption Agreement; Allocation of Purchase Price; Bill of Sale and Assumption Agreement; Warranty Deed, and Disclosure Schedules (all of which will be provided to the Securities and Exchange Commission upon its request).
10.85.1	First Amendment dated as of June 25, 1999 to Credit Agreement dated April 2, 1999
10.85.2	Second Amendment dated as of February 14, 2000 to Credit Agreement dated April 2, 1999
10.85.3	Third Amendment dated as of April 2, 2001 to Credit Agreement dated April 2, 1999
10.85.4	Fourth Amendment dated as of May 25, 2002 to Credit Agreement dated April 2, 1999
99.1	Certified Written Statement