PART I. FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

LATTICE SEMICONDUCTOR CORPORATION

CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS

(In thousands, except per share data)

(unaudited)

Three Months Ended

Nine Months Ended

September 30,
2005

September 30,
2004

September 30,
2005

September 30,
2004

Revenue

53,390

57,281

157,069

177,291

Costs and expenses:

Cost of products sold

23,398

24,848

68,431

75,799

Research and development

22,719

23,213

71,759

68,071

Selling, general and administrative

13,558

13,630

44,324

40,786

Amortization of intangible assets (1)

3,968

5,785

12,497

41,490

Total costs and expenses

63,643

67,476

197,011

226,146

Loss from operations

(10,253

)

(10,195

)

(39,942

)

(48,855

)

Other income, net

3,405

3,989

14,250

10,232

Loss before income tax expense

(6,848

)

(6,206

)

(25,692

)

(38,623

)

Income tax expense

237

118

437

218

Net loss

(7,085

)

(6,324

)

(26,129

)

(38,841

)

Basic net loss per share

(0.06

)

(0.06

)

(0.23

)

(0.34

)

Diluted net loss per share

(0.06

)

(0.06

)

(0.23

)

(0.34

)

Shares used in per share calculations:

Basic

113,544

113,181

113,495

112,871

Diluted

113,544

113,181

113,495

112,871

(1) Includes $438 and $657 of amortization of deferred stock compensation expense for the three months ended September 30, 2005 and September 30, 2004, respectively, and $1,634 and $2,787 for the nine months ended September 30, 2005 and September 30, 2004, respectively, attributable to research and development activities.

See Accompanying Notes to Condensed Unaudited Consolidated Financial Statements.

LATTICE SEMICONDUCTOR CORPORATION

CONDENSED CONSOLIDATED BALANCE SHEET

(In thousands, except share and par value data)

(unaudited)

	September 30, 2005			December 31, 2004
Assets

Current assets:
Cash and cash equivalents	$	46,348		$	44,816
Marketable securities	217,425			251,479
Accounts receivable, net	26,408			19,587
Inventories	32,259			38,634
Other current assets	28,517			46,527

Total current assets	350,957			401,043

Foundry investments, advances and other assets	82,780			97,877
Property and equipment, net	45,170			47,586
Intangible assets, net	29,983			40,795
Goodwill	223,556			223,605

	$	732,446		$	810,906

Liabilities and Stockholders’ Equity

Current liabilities:
Accounts payable and accrued expenses	$	42,710		$	61,138
Deferred income on sales to distributors	12,955			11,399
Income taxes payable	84			23

Total current liabilities	55,749			72,560

Zero Coupon Convertible Subordinated Notes due in 2010	133,500			169,000
Other long-term liabilities	24,903			26,755
Commitments and contingencies	—			—

Stockholders’ equity:
Preferred stock, $.01 par value, 10,000,000 shares authorized; none issued and outstanding	—			—
Common stock, $.01 par value, 300,000,000 shares authorized, 113,617,000 and 113,610,000 shares issued and outstanding	1,136			1,136
Paid-in capital	590,259			590,270
Deferred stock compensation	(213		)	(1,867		)
Accumulated other comprehensive income	1,831			1,642
Accumulated deficit	(74,719		)	(48,590		)

Total stockholders’ equity	518,294			542,591

	$	732,446		$	810,906

See Accompanying Notes to Condensed Unaudited Consolidated Financial Statements.

LATTICE SEMICONDUCTOR CORPORATION

CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS

(In thousands)

(unaudited)

	Nine Months Ended
	September 30, 2005			September 30, 2004
Cash flows from operating activities:
Net loss	$	(26,129	)	$	(38,841	)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	25,705			58,134
Gain on sale of UMC common stock	(4,291		)	(6,071		)
Gain on extinguishment of Zero Coupon Convertible Subordinated Notes	(4,927		)	(2,756		)
Changes in assets and liabilities:
Accounts receivable	(6,821		)	(205		)
Inventories	6,375			7,531
Foundry investments, advances and other assets	6,848			(5,486		)
Accounts payable and accrued expenses	(19,847		)	4,069
Deferred income on sales to distributors	1,556			5,476
Income taxes payable	61			4
Other liabilities	(1,937		)	4,133
Total adjustments	2,722			64,829

Net cash (used in) provided by operating activities	(23,407		)	25,988

Cash flows from investing activities:
Proceeds from sales or maturities of marketable securities	216,967			184,912
Purchase of marketable securities	(182,913		)	(209,578		)
Proceeds from sale of equity securities (principally UMC common stock)	27,464			29,612
Capital expenditures	(7,958		)	(8,251		)
Net cash provided by (used in) investing activities	53,560			(3,305		)

Cash flows from financing activities:
Extinguishment of Zero Coupon Convertible Subordinated Notes	(30,182		)	(11,999		)
Advances on Yen line of credit	5,037			4,508
Pay down on Yen line of credit	(3,485		)	(367		)
Net proceeds from issuance of common stock	9			2,140

Net cash used in financing activities	(28,621		)	(5,718		)

Net increase in cash and cash equivalents	1,532			16,965

Beginning cash and cash equivalents	44,816			35,276

Ending cash and cash equivalents	$	46,348		$	52,241

Supplemental disclosures of cash flow information:
Cash paid for income taxes	$	114		$	489
Cash paid for interest	17			—

Supplemental disclosures of non-cash investing and financing activities:
Unrealized gain (loss) on appreciation (depreciation) of foundry investments included in Accumulated other comprehensive income	$	4,739		$	(15,009	)

See Accompanying Notes to Condensed Unaudited Consolidated Financial Statements.

	Three Months Ended						Nine Months Ended
	September 30, 2005			September 30, 2004			September 30, 2005			September 30, 2004
Basic and diluted net loss	$	(7,085	)	$	(6,324	)	$	(26,129	)	$	(38,841	)

Shares used in basic net loss per share calculations	113,544			113,181			113,495			112,871

Dilutive effect of stock options, warrants and convertible notes	—			—			—			—

Shares used in diluted net loss per share	113,544			113,181			113,495			112,871

Basic net loss per share	$	(0.06	)	$	(0.06	)	$	(0.23	)	$	(0.34	)

Diluted net loss per share	$	(0.06	)	$	(0.06	)	$	(0.23	)	$	(0.34	)

Stock-Based Compensation

We account for our stock options and employee stock purchase plan in conformity with APB 25 and have adopted the additional pro forma disclosure provisions of SFAS No. 123, as amended by SFAS No. 148. The fair value of our stock-based employee compensation cost, as defined by SFAS No. 123, for stock options was estimated on the date of grant using the Black-Scholes option pricing model with the following assumptions:

	Grants for
	Three Months Ended				Nine Months Ended
	September 30, 2005		September 30, 2004		September 30, 2005		September 30, 2004
Stock Options:
Expected volatility	39.4	%	48.6	%	39.7	%	48.8	%
Risk-free interest rate	4.2	%	2.9	%	4.2	%	2.8	%
Expected life from vesting date (in years)	1.1		1.4		1.1		1.3
Dividend yield	0	%	0	%	0	%	0	%

The Black-Scholes option pricing model was developed for use in estimating the fair value of freely tradable, fully transferable options without vesting restrictions. Our stock options have characteristics which differ significantly from those of freely tradable, fully transferable options. The Black-Scholes option pricing model also requires highly subjective assumptions, including expected stock price volatility and expected stock option term, which greatly affect the calculated fair value of an option. Our actual stock price volatility and option term may be materially different from the assumptions used herein.

The resultant grant date weighted-average fair values calculated using the Black-Scholes option pricing model and the noted assumptions for stock options granted were $1.49 and $1.71 for the third quarter of 2005 and 2004, respectively, and $1.50 and $1.80 for the first nine months of 2005 and 2004, respectively. For purposes of pro forma disclosures, the estimated fair value of the options is amortized to expense over the options’ vesting period.

Our pro forma information is as follows (in thousands, except per share data):

	Three Months Ended						Nine Months Ended
	September 30, 2005			September 30, 2004			September 30, 2005			September 30, 2004

Net loss, as reported	$	(7,085	)	$	(6,324	)	$	(26,129	)	$	(38,841	)
Add: Stock-based employee compensation expense included in reported loss	438			657			1,634			2,787
Deduct: Total stock-based employee compensation expense determined under fair value based method for all awards	(1,278		)	(4,050		)	(6,063		)	(14,210		)
Pro forma net loss	$	(7,925	)	$	(9,717	)	$	(30,558	)	$	(50,264	)

Net loss per share:
Basic-as reported	$	(0.06	)	$	(0.06	)	$	(0.23	)	$	(0.34	)
Basic-pro forma	$	(0.07	)	$	(0.09	)	$	(0.27	)	$	(0.45	)

Diluted-as reported	$	(0.06	)	$	(0.06	)	$	(0.23	)	$	(0.34	)
Diluted-pro forma	$	(0.07	)	$	(0.09	)	$	(0.27	)	$	(0.45	)

Note 4 – Inventories (in thousands):

	September 30, 2005		December 31, 2004
Work in progress	$	22,901	$	29,148
Finished goods	9,358		9,486
	$	32,259	$	38,634

Note 5 – Changes in Stockholders’ Equity (in thousands):

	Common stock		Paid-in capital			Deferred stock compensation			Accumulated other comprehensive income			Deficit			Total
Balances, Dec. 31, 2004	$	1,136	$	590,270		$	(1,867	)	$	1,642		$	(48,590	)	$	542,591

Common stock issued	—		9			—			—			—			9

Unrealized gain on foundry investments, net (Note 6)	—		—			—			4,739			—			4,739

Recognized gain on sale of foundry investments previously unrealized (Note 6)	—		—			—			(4,460		)	—			(4,460)

Unrealized loss on stock holdings	—		—			—			(6		)	—			(6		)

Deferred stock compensation	—		(20		)	20			—			—

Amortization of deferred stock compensation	—		—			1,634			—			—			1,634

Translation adjustment	—		—			—			(84		)	—			(84		)

Net loss for the nine month period	—		—			—			—			(26,129		)	(26,129		)

Balances, September 30, 2005	$	1,136	$	590,259		$	(213	)	$	1,831		$	(74,719	)	$	518,294

Total comprehensive loss for the first nine months of 2005 was approximately $25.9 million and is substantially comprised of a net loss from operations of $26.1 million, a $4.7 million unrealized gain on foundry investments, and a $4.5 million gain on sale of foundry investments previously included in Accumulated other comprehensive income.

Note 6 – Foundry Investments, Advances and Other Assets (in thousands):

		September 30, 2005			December 31, 2004
Foundry investments and other assets		$	50,071		$	72,158
Wafer supply advances		50,333			62,811
		100,404			134,969
Less:	UMC common stock available for sale	(1,536		)	(24,202		)
	Current portion of wafer advance	(16,088		)	(12,890		)
		$	82,780		$	97,877

As of September 30, 2005, we owned 25.7 million shares of UMC common stock, 23.3 million of which are restricted by the terms of our agreement with UMC. Under the terms of the UMC agreement, if we sell any of these restricted shares, our rights to guaranteed wafer capacity at UMC may be reduced on a pro-rata basis based on the number of shares that we sell. If we sell over 10.1 million of these restricted shares, we may lose all of our rights to guaranteed wafer capacity at UMC.

During the second quarter of 2005, we sold 37.5 million shares of UMC common stock for a net gain of $4.3 million which was previously recorded as an unrealized gain in Accumulated other comprehensive income. If we liquidate our UMC common stock, it is likely that the amount of any future realized gain or loss will be different from the accounting gain or loss reported in prior periods.

Note 7 – Purchased Intangible Assets:

The following tables present details of the Company’s total purchased intangible assets (in millions):

September 30, 2005	Gross		Accumulated amortization			Net

Current technology	$	273.6	$	(253.2	)	$	20.4
Core technology	7.3		(4.4		)	2.9
Licenses	10.2		(5.4		)	4.8
Non-compete agreements	14.2		(14.1		)	0.1
Workforce	4.7		(2.9		)	1.8
Backlog	1.4		(1.4		)	—
Customer list	17.4		(17.4		)	—
Patents and trademarks	26.8		(26.8		)	—

Total	$	355.6	$	(325.6	)	$	30.0

December 31, 2004	Gross		Accumulated amortization			Net

Current technology	$	273.6	$	(245.5	)	$	28.1
Core technology	7.3		(3.4		)	3.9
Licenses	10.2		(4.3		)	5.9
Non-compete agreements	14.2		(13.8		)	0.4
Workforce	4.7		(2.2		)	2.5
Backlog	1.4		(1.4		)	—
Customer list	17.4		(17.4		)	—
Patents and trademarks	26.8		(26.8		)	—

Total	$	355.6	$	(314.8	)	$	40.8

The estimated future amortization expense of purchased intangible assets as of September 30, 2005 is as follows (in millions):

Fiscal Year:	Amount

2005 (remaining three months)	$		3.6
2006	10.8
2007	9.8
2008	5.6
2009	0.2
	$	30.0

The estimated future amortization expense of deferred stock compensation attributable to research and development activities as of September 30, 2005 is approximately $0.2 million for the remainder of 2005.

Note 8 – New Accounting Pronouncements:

In March 2004, the Emerging Issues Task Force reached a consensus on recognition and measurement guidance previously discussed under EITF 03-01. The consensus clarifies the meaning of other-than-temporary impairment and its application to investments classified as either available-for-sale or held-to-maturity under SFAS No. 115, “Accounting for Certain Investments in Debt and Equity Securities.” The recognition and measurement guidance for which the consensus was reached in the March 2004 meeting is to be applied to other-than-temporary impairment evaluations in reporting periods beginning after June 15, 2004. In September 2004, the FASB issued a final FASB Staff Position that delays the effective date for the measurement and recognition guidance for all investments within the scope of EITF 03-01. The consensus reached in March 2004 also provided for certain disclosure requirements associated with cost method investments that was effective for fiscal years ending after June 15, 2004. In July 2005, the FASB decided to issue proposed FSP EITF 03-01-a, “Implementation Guidance for the Application of Paragraph 16 of EITF Issue No. 03-01,” as final. The final FSP (retitled FSP FAS 115-1) supersedes EITF 03-01 and is effective for other-than-temporary impairment analysis conducted in periods beginning after December 15, 2005. At that time management will evaluate the effect of adopting the recognition and measurement guidance.

In December 2004, the FASB issued a Statement entitled, “Share Based Payment – a revision of SFAS No. 123 (SFAS No. 123R), Accounting for Stock Based Compensation,” that addresses the accounting for share-based payment transactions in which a company receives employee services in exchange for either equity instruments of the company or liabilities that are based on the fair value of the company’s equity instruments or that may be settled by the issuance of such equity instruments. The statement eliminates the ability to account for share-based compensation transactions using the intrinsic method currently used by the company and generally would require that such transactions be accounted for using a fair-value-based method and recognized as expense in the company’s Consolidated Statement of Operations. The effective date of the standard is for fiscal years beginning after June 15, 2005. Accordingly, we will adopt the standard in January 2006. Under SFAS No. 123R, the pro forma disclosures previously permitted will no longer be an alternative to financial statement recognition. We expect to apply the Black-Scholes valuation model in determining the fair value of share-based payments to employees, which will then be amortized over the vesting period. In addition, the SEC issued Staff Accounting Bulletin (“SAB”) No. 107 in March 2005, which includes interpretive guidance for the initial implementation of SFAS No. 123R. The adoption of SFAS No. 123R will have a significant and adverse impact on our Consolidated Statement of Operations, as we will be required to expense the fair value of our stock option grants and stock purchases under our employee stock purchase plan. However, it will have no impact on our cash flow. Please refer to Note 3 to our condensed consolidated financial statements which provides historical information that may be useful in assessing the impact of this standard on our condensed consolidated financial statements.

In May 2005, the FASB issued SFAS No. 154, “Accounting Changes and Error Corrections – a replacement of APB Opinion No. 20 and FASB Statement No. 3” (SFAS No. 154). SFAS No. 154 requires retrospective application to prior periods’ financial statements for changes in accounting principle, unless it is impracticable to determine either the period-specific effects or the cumulative effect of the change. SFAS No. 154 is effective for accounting changes and corrections of errors made in fiscal years beginning after December 15, 2005.

We do not expect the adoption of this standard to have a material impact on our consolidated financial position, results of operations or cash flows.

Note 9 – Legal Matters:

In September and October 2004, three putative class action complaints were filed in the United States District Court for the District of Oregon against Lattice Semiconductor Corporation, our Chief Executive Officer and President Stephen A. Skaggs, and our former Chief Executive Officer Cyrus Y. Tsui. These complaints were filed on behalf of a putative class of investors who purchased our stock between April 22, 2003 and April 19, 2004. They generally allege violations of federal securities laws arising out of our previously announced restatement of financial results for the first, second, and third quarters of 2003. Consistent with the usual procedures for cases of this kind, these cases were amended and consolidated into a single action. In an amended and consolidated complaint filed January 27, 2005 our former President and our former Controller were added as defendants. We believe that the complaints are without merit, and we intend to vigorously defend against the lawsuits.

In September and October 2004, two shareholder derivative complaints were filed, purportedly on behalf of Lattice Semiconductor Corporation, in the Circuit Court of the State of Oregon for the County of Washington, against all members of the board of directors at the time, certain former directors, and certain executive officers. The derivative plaintiffs make allegations substantially similar to those in the putative class action complaints, as well as allegations of breach of fiduciary duty, abuse of control, gross mismanagement, waste of corporate assets, and unjust enrichment. Consistent with the usual procedures for cases of this kind, these cases were consolidated into a single putative shareholder derivative action. On April 1, 2005, an amended and consolidated complaint was filed. On May 16, 2005, the Company, acting through a Special Litigation Committee (“SLC”) appointed by the Board of Directors, which was established for the purpose of conducting a review and examination of the claims contained in the shareholder derivative complaints, filed a motion to stay the proceedings to allow the SLC to conduct an investigation. On July 18^th, 2005, the Circuit Court held a hearing and stayed the action until a status conference is held. A status conference was scheduled for October 24, 2005, but has been indefinitely postponed. The SLC has been discussing with counsel for the derivative plaintiffs a potential settlement of the derivative action on terms that, among other things, would provide for our Board of Directors to adopt specified corporate governance changes, for the dismissal with prejudice of all claims asserted by the derivative plaintiffs, and for the payment of plaintiffs’ counsel’s fees and expenses. Such a potential settlement would be subject to and would be effective only if and when, among other things, the parties execute final settlement documents and obtain approval from the Circuit Court. If a settlement agreement is not reached, or is reached but does not become effective, the derivative litigation would continue. Settlement of the derivative litigation would not cover or settle the federal securities action.

All of the complaints generally seek an unspecified amount of damages, as well as attorney fees and costs. The cases are still in the preliminary stages, and it is not possible for us to quantify the extent of our potential liability, if any. An unfavorable outcome in any of these matters could have a material adverse effect on our business, our liquidity and our financial results. In addition, defending any litigation may be costly and divert management’s attention from the day-to-day operations of our business.

On June 14, 2005, we announced that our Audit Committee, in connection with its responsibilities for financial oversight, was conducting an internal examination. The examination concerned issues primarily associated with executive compensation and several items pertaining to our internal controls. On August 9, 2005, we announced that the Audit Committee had concluded the examination. We have furnished information regarding the matters examined by the Audit Committee to the Securities and Exchange Commission, which is conducting an ongoing informal inquiry into our prior restatement of financial results. On September 30, 2005 the Securities and Exchange Commission issued a Cease and Desist Order concerning our former Controller, and referenced certain events in connection with our prior restatement of financial results. We are cooperating fully with the Securities and Exchange Commission and intend to continue to do so. We cannot predict the duration or outcome of the Securities and Exchange Commission’s inquiry. If the Securities and Exchange Commission expands its informal inquiry or decides to pursue enforcement action against us, or any other governmental agency or regulatory body takes similar action, our management could be distracted, we could incur substantial costs and there could be a material adverse effect on our business. The matters that the Audit Committee was examining were brought to its attention by the SLC.

We are exposed to certain asserted and unasserted potential claims. There can be no assurance that, with respect to potential claims made against us, we could resolve such claims under terms and conditions that would not have a material adverse effect on our business, our liquidity or our financial results. Periodically, we review the status of each significant matter and assess its potential financial exposure. If the potential loss from any claim or legal proceeding is considered probable and a range of possible losses can be estimated, we then accrue a liability for the estimated loss. Any liability for estimated loss is based on the criteria in SFAS No. 5, “Accounting for Contingencies”. Legal proceedings are subject to uncertainties, and the outcomes are difficult to predict. Because of such uncertainties, accruals are based only on the best information available at the time. As additional information becomes available, we reassess the potential liability related to pending claims and litigation and may revise estimates. Presently, no accrual has been estimated under SFAS No. 5 for potential losses that may or may not arise from the current lawsuits in which we are involved.

Accruals include billings for legal services performed to date and expected to be performed in the future in connection with the matters described above.

Note 10 – Segment and Geographic Information:

We operate in one industry segment comprising the design, development, manufacture and marketing of high performance programmable logic devices. Our revenues by major geographic area were as follows (in thousands):

	Three Months Ended				Nine Months Ended
	September 30, 2005		September 30, 2004		September 30, 2005		September 30, 2004

United States revenue:	$	13,044	$	13,831	$	37,365	$	46,956
Export revenue:
Europe	12,663		12,703		37,714		40,765
Asia Pacific (other than Japan and China)	9,121		10,479		28,074		31,570
Japan	7,878		8,508		22,664		23,248
China	7,251		8,123		20,297		24,877
Other	3,433		3,637		10,955		9,875
Total revenue from exports	40,346		43,450		119,704		130,335
Total revenue	$	53,390	$	57,281	$	157,069	$	177,291

Resale of product through two distributors accounted for approximately 13% and 9% of revenue in the first nine months of 2005, and 13% and 10% of revenue for the first nine months of 2004. More than 90% of our property and equipment is located in the United States.

Note 11 – Subsequent Event:

On October 25, 2005, we committed to undertake a corporate restructuring to consolidate operations, streamline engineering functions and lower operating expenses. The restructuring encompasses three major components – an R&D site streamlining, a voluntary separation program for certain employees and an organizational consolidation within our largest design center. These actions are not expected to impact our product direction or product roll-out strategy, which remains unchanged. We expect to complete the restructuring in the fourth quarter of 2005.

As a result of these actions, we expect that total headcount will be reduced by approximately 12 to 14 percent. We currently estimate that the restructuring will result in a reduction in operating expense, effective the first quarter of 2006, of an estimated $3.5-$4.5 million per quarter.

A restructuring charge, estimated to be in the $8-$10 million range, is expected to be recorded in the fourth quarter of 2005. This charge primarily relates to separation packages and costs to vacate space under long-term lease arrangements. The following table displays the current estimate for each major type of cost associated with the restructuring (in thousands):

Severance and related costs	$	5,000 - 6,000
Lease loss reserve	2,500 - 3,000
Other	500 - 1,000

Approximately $0.5 million-$0.7 million of the total estimated charge is non-cash in nature and will not result in future cash expenditures.

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

Lattice Semiconductor Corporation designs, develops and markets high performance programmable logic products and related software. Programmable logic devices are widely used semiconductor components that can be configured by the end customer as specific logic circuits, and enable the end customer to shorten design cycle times and reduce development costs. Our end customers are primarily original equipment manufacturers in the communications, computing, industrial, automotive, medical, consumer and military end markets.

Overview of Three Month and Nine Month Periods Ended September 30, 2005

Revenue for our business in the third quarter and first nine months ended September 30, 2005 decreased to $53.4 million and $157.1 million, respectively, compared to $57.3 million and $177.3 million for the third quarter and first nine months ended September 30, 2004, respectively. The revenue decline is attributable to Mainstream* and Mature* products which declined 36% and 12%, respectively, for the third quarter and more than offset revenue growth from New* products which increased 61% for the same time period. Likewise, Mainstream* and Mature* products declined 33% and 24%, respectively, for the first nine months of 2005 and more than offset revenue growth from New* products which increased 70% for the same time period. Among other things, future revenue growth is dependent on favorable market acceptance of our New* products. The decline in revenue for the periods referenced is attributable to reduced end market demand.

Revenue attributable to PLD and FPGA products declined 6% and 9%, respectively, for the third quarter of 2005 compared to the third quarter of 2004. Likewise, PLD and FPGA product revenue declined 11% and 13%, respectively, for the first nine months of 2005 compared to the first nine months of 2004.

Our gross margin percentage declined to 56.2% and 56.4% in the third quarter and first nine months of 2005, respectively, compared to 56.6% and 57.2% in the third quarter and first nine months of 2004, respectively. These changes are primarily due to growth in New* products, which carry a lower gross margin, and a decline in revenue from Mature* products, which have a higher gross margin.

Research and development expenses decreased to $22.7 million (43% of revenue) in the third quarter of 2005, and increased to $71.8 million (46% of revenue) in the first nine months of 2005 compared to $23.2 million (41% of revenue) and $68.1 million (38% of revenue) in the same periods in 2004. These changes primarily represent mask and engineering wafer costs to support development of new products and to a lesser extent personnel related costs. As we continue to move to more advanced process technologies such as 90nm and beyond, mask costs are becoming increasingly more expensive and will therefore increasingly represent a greater proportion of total research and development expenses. We expect to continue to make significant investments in research and development.

Selling, general and administrative expenses remained consistent at $13.6 million (25% of revenue) in the third quarter of 2005, and increased to $44.3 million (28% of revenue) in the first nine months of 2005 compared to $13.6 million (24% of revenue) and $40.8 million (23% of revenue) in the third quarter and first nine months of 2004, respectively. The increase in expense for the nine months ended September 30, 2005 is primarily attributable to a $4.0 million charge during the second quarter for legal expenses related to the pending shareholder class action and derivative suits, the related Audit Committee examination, the SLC’s ongoing investigation and the Securities and Exchange Commission’s ongoing informal inquiry. Legal expenses related to these matters have resulted in a total charge of $5.4 million during the first nine months of 2005. These increases are partially offset by decreases primarily in consulting services, sales related expenses and other miscellaneous items.

Amortization of intangible assets declined to $4.0 million and $12.5 million in the third quarter and first nine months of 2005, respectively, compared to $5.8 million and $41.5 million, respectively, for the same periods in 2004. Amortization of intangible assets acquired in the 1999 Vantis acquisition was completed during the June 30, 2004 quarter, which accounts for most of the decline. These non-cash amortization charges are expected to be substantially eliminated in 2008. Included in these amounts is amortization of deferred stock compensation attributable to research and development activities of $0.4 million and $1.6 million for the third quarter and first nine months of 2005, respectively, compared to $0.7 million and $2.8 million, respectively, for the same periods in 2004.

Other income, net, was $3.4 million and $14.3 million in the third quarter and first nine months of 2005, respectively, and included a gain in the third quarter and first nine months of 2005 on the extinguishment of Zero Coupon Convertible Subordinated Notes due July 1, 2010 (“Convertible Notes”) of $1.4 million and $4.9 million, respectively, and interest and dividends on short term investments and cash equivalents of $2.3 million and $5.9 million, respectively, partially offset by amortization of issuance costs on our Convertible Notes. A $4.3 million net gain from the sale of UMC common stock is included in the first nine months of 2005. Other income, net, of $4.0 million and $10.2 million in the third quarter and the first nine months of 2004, respectively, primarily included a gain on the extinguishment of Convertible Notes of $2.8 million for both the third quarter and the first nine months ended in 2004, a net gain on the sale of UMC common stock of $0.5 million and $6.1 million, respectively, and interest and dividends on short term investments and cash equivalents of $1.2 million and $2.9 million, respectively.

We are paying foreign income taxes which are reflected in the Condensed Consolidated Statement of Operations and are primarily related to the cost of operating our offshore sales subsidiaries. We are not currently paying federal or state income taxes and do not expect to pay or accrue such taxes in 2005. We expect to continue to pay foreign income taxes at current levels.

* Product Classification:

New:		LatticeEC/P, LatticeXP, MachXO, FPSC, XPLD, XPGA, GDX2, ORCA 4, ispMACH 4000/Z, ispPAC-POWR, ispCLK
Mainstream:		ORCA 3, GDX/V, ispMACH L/V, ispLSI 2000V, ispLSI 5000V, ispLSI 8000V, ispMACH 5000VG, and Other
Mature:		ORCA 2, all 5-Volt CPLDs, all SPLDs

Results of Operations

Key elements of our condensed consolidated statement of operations, expressed as a percentage of revenues, were as follows:

	Three Months Ended				Nine Months Ended
	September 30, 2005		September 30, 2004		September 30, 2005		September 30, 2004

Revenue	100.0	%	100.0	%	100.0	%	100.0	%
Gross margin	56.2	%	56.6	%	56.4	%	57.2	%
Research and development expenses	42.6	%	40.5	%	45.7	%	38.4	%
Selling, general and administrative expenses	25.4	%	23.8	%	28.2	%	23.0	%
Amortization of intangible assets	7.4	%	10.1	%	8.0	%	23.4	%
Loss from operations	(19.2	)%	(17.8	)%	(25.4	)%	(27.6	)%

Revenue:

Revenue for the third quarter of 2005 decreased by $3.9 million, or 7%, as compared to the third quarter of 2004, and by $20.2 million, or 11%, for the first nine months of 2005 as compared to the first nine months of 2004. The composition of our revenue by product classification for the third quarter and first nine months of 2005 and 2004 was as follows:

	Three Months Ended				Nine Months Ended
	September 30, 2005		September 30, 2004		September 30, 2005		September 30, 2004
FPGA	19	%	20	%	19	%	19	%
PLD	81	%	80	%	81	%	81	%

	Three Months Ended				Nine Months Ended
	September 30, 2005		September 30, 2004		September 30, 2005		September 30, 2004
New	36	%	21	%	32	%	17	%
Mainstream	29	%	43	%	33	%	43	%
Mature	35	%	36	%	35	%	40	%

The composition of our revenue by geographical location of our direct and indirect customers is as follows (in thousands):

	Three Months Ended
	September 30, 2005				September 30, 2004

United States revenue:	$	13,044	24	%	$	13,831	24	%
Export revenue:
Europe	12,663		24	%	12,703		22	%
Asia Pacific (other than Japan and China)	9,121		17	%	10,479		18	%
Japan	7,878		15	%	8,508		15	%
China	7,251		14	%	8,123		14	%
Other	3,433		6	%	3,637		7	%
Total revenue from exports	40,346		76	%	43,450		76	%
Total revenue	$	53,390	100	%	$	57,281	100	%

	Nine Months Ended
	September 30, 2005				September 30, 2004

United States revenue:	$	37,365	24	%	$	46,956	26	%
Export revenue:
Europe	37,714		24	%	40,765		23	%
Asia Pacific (other than Japan and China)	28,074		18	%	31,570		18	%
Japan	22,664		14	%	23,248		13	%
China	20,297		13	%	24,877		14	%
Other	10,955		7	%	9,875		6	%
Total revenue from exports	119,704		76	%	130,335		74	%
Total revenue	$	157,069	100	%	$	177,291	100	%

During the third quarter and first nine months of 2005 compared to the same periods in 2004, total units remained consistent and decreased by 9%, respectively, while average selling prices decreased 7% and 2%, respectively. The decrease in units sold during the first nine months of 2005 compared to the same period in 2004 was predominantly attributable to lower sales of Mainstream and Mature products due to reduced end market demand. The decrease in average selling price was primarily due to product mix. Selling prices of our products generally decline over time. Higher selling prices of new products commonly offset some or all of this decline in average selling prices, however product mix changes can also have a significant effect on average sales prices.

Geographically, as a percentage of revenue, export revenues were 76% in both the September 30, 2005 and 2004 quarters, and were 76% for the first nine months of 2005 compared to 74% for the first nine months of 2004. Export revenues as a percentage of overall revenue increased in the first nine months of 2005 and revenues from the United States decreased in the first nine months of 2005 compared to the same period in 2004 due to the continuing trend by our customers to perform manufacturing offshore, and relative business conditions in Asia compared to the U.S.

Our ability to achieve revenue growth is in large part dependent on the continued development, introduction and market acceptance of new products. See “Factors Affecting Future Results.”

Gross Margin:

The gross margin percentage decreased from 56.6% in the third quarter of 2004 to 56.2% in the third quarter of 2005. Likewise, our gross margin declined from 57.2% for the first nine months of 2004 to 56.4% for the first nine months of 2005. These changes reflect revenue growth in New* products, which carry a lower gross margin, and a decline in revenue from Mature* products, which carry a higher gross margin.

Research and Development:

Research and development expenses decreased by $0.5 million in the third quarter of 2005, and increased by $3.7 million in the first nine months of 2005 when compared to the same periods in 2004. The changes primarily represent mask and engineering wafer costs for the completion of new products and to a lesser extent personnel related costs. We believe that a continued commitment to research and development is essential in order to achieve and maintain product leadership and provide innovative new product offerings, and therefore we expect to continue to make significant future investments in research and development. As we continue to move to more advanced process technologies such as 90nm and beyond, mask costs are becoming increasingly more expensive and will therefore increasingly represent a greater proportion of total research and development expenses.

Selling, General and Administrative Expense:

Selling, general and administrative expenses decreased approximately $0.1 million in the third quarter of 2005, and increased by $3.5 million in the first nine months of 2005 when compared to the same periods of 2004. The increase in expense during the first nine months of 2005 is primarily attributable to a $4.0 million charge during the second quarter for legal expenses related to the pending shareholder class action and derivative suits, the recently completed Audit Committee’s examination, the SLC’s ongoing investigation and the Securities and Exchange Commission’s ongoing informal inquiry. Legal expenses related to these matters have resulted in a total charge of $5.4 million during the first nine months of 2005. These increases are partially offset by decreases primarily in consulting services, sales related expenses and other miscellaneous items.

Amortization of Intangible Assets:

Amortization of intangible assets is related to our 2002 and 2001 acquisitions and our 1999 Vantis acquisition. Amortization of intangible assets declined to $4.0 million in the third quarter of 2005 compared to $5.8 million in the third quarter of 2004, and to $12.5 million in the first nine months of 2005 compared to $41.5 million in the first nine months of 2004 as certain intangible assets from the Vantis and Agere acquisitions became fully amortized during the second quarter of 2004. Included in these amounts are $0.4 million and $0.7 million of amortization of deferred stock compensation expense for the three months ended September 30, 2005 and September 30, 2004, respectively, and $1.6 million and $2.8 million for the nine months ended September 30, 2005 and September 30, 2004, respectively, attributable to research and development activities.

Other Income, net:

Interest income was $2.3 million and $5.9 million in the third quarter and first nine months of 2005, respectively, compared to $1.2 million and $2.9 million, respectively, for the same periods of 2004. The increase was a result of higher interest rates.

Other income, net, of $3.4 million in the third quarter of 2005 primarily included a $1.4 million gain on the extinguishment of $10.0 million of our Convertible Notes for $8.5 million in cash, which required recognition of $0.1 million of unamortized issuance costs. Amortization of Convertible Notes issuance costs was $0.2 million in the third quarter of 2005. For the nine month period ended September 30, 2005, other income, net, of $14.3 million primarily included a net gain on the sale of UMC common stock of $4.3 million and a gain of $4.9 million on the extinguishment of $35.5 million of Convertible Notes for $30.2 million in cash, which required recognition of $0.4 million of unamortized issuance costs. Amortization of Convertible Notes issuance costs was $0.7 million for the first nine months of 2005.

Other income, net, of $4.0 million in the third quarter of 2004 included a gain on the extinguishment of Convertible Notes of $2.8 million, net gain on the sale of UMC common stock of $0.5 million, and $0.4 million of amortization of issuance costs related to the Convertible Notes. For the nine month period ended September 30, 2004, other income, net, of $10.2 million included a gain on the extinguishment of Convertible Notes of $2.8 million, net gain on the sale of UMC common stock of $6.1 million and $1.2 million of amortization of issuance costs related to the Convertible Notes.

Provision for Income Taxes:

The 2005 tax provision is related to income taxes on our foreign subsidiaries primarily engaged in selling and research and development activities.

Purchased Intangible Assets:

The following tables present details of the Company’s total purchased intangible assets (in millions):

September 30, 2005	Gross		Accumulated amortization			Net

Current technology	$	273.6	$	(253.2	)	$	20.4
Core technology	7.3		(4.4		)	2.9
Licenses	10.2		(5.4		)	4.8
Non-compete agreements	14.2		(14.1		)	0.1
Workforce	4.7		(2.9		)	1.8
Backlog	1.4		(1.4		)	—
Customer list	17.4		(17.4		)	—
Patents and trademarks	26.8		(26.8		)	—

Total	$	355.6	$	(325.6	)	$	30.0

December 31, 2004	Gross		Accumulated amortization			Net

Current technology	$	273.6	$	(245.5	)	$	28.1
Core technology	7.3		(3.4		)	3.9
Licenses	10.2		(4.3		)	5.9
Non-compete agreements	14.2		(13.8		)	0.4
Workforce	4.7		(2.2		)	2.5
Backlog	1.4		(1.4		)	—
Customer list	17.4		(17.4		)	—
Patents and trademarks	26.8		(26.8		)	—

Total	$	355.6	$	(314.8	)	$	40.8

The estimated future amortization expense of purchased intangible assets as of September 30, 2005 is as follows (in millions):

Fiscal Year:	Amount

2005 (remaining three months)	$	3.6
2006	10.8
2007	9.8
2008	5.6
2009	0.2
	$	30.0

New Accounting Pronouncements:

In March 2004, the Emerging Issues Task Force reached a consensus on recognition and measurement guidance previously discussed under EITF 03-01. The consensus clarifies the meaning of other-than-temporary impairment and its application to investments classified as either available-for-sale or held-to-maturity under SFAS No. 115, “Accounting for Certain Investments in Debt and Equity Securities.” The recognition and measurement guidance for which the consensus was reached in the March 2004 meeting is to be applied to other-than-temporary impairment evaluations in reporting periods beginning after June 15, 2004. In September 2004, the FASB issued a final FASB Staff Position that delays the effective date for the measurement and recognition guidance for all investments within the scope of EITF 03-01. The consensus reached in March 2004 also provided for certain disclosure requirements associated with cost method investments which was effective for fiscal years ending after June 15, 2004. In July 2005, the FASB decided to issue proposed FSP EITF 03-01-a, “Implementation Guidance for the Application of Paragraph 16 of EITF Issue No. 03-01,” as final. The final FSP (retitled FSP FAS 115-1) supersedes EITF 03-01 and is effective for other-than-temporary impairment analysis conducted in periods beginning after December 15, 2005. At that time management will evaluate the affect of adopting the recognition and measurement guidance.

We do not expect the adoption of this standard to have a material impact on our consolidated financial position, results of operations or cash flows.

Liquidity and Capital Resources

As of September 30, 2005, our principal source of liquidity was $263.8 million of cash and marketable securities, which was approximately $32.5 million less than the balance of $296.3 million at December 31, 2004. This decrease was due primarily to the use of $23.4 million in operations, which includes a $25.0 million payment to Fujitsu pursuant to the Advance Payment Agreement entered into in September 2004 and the extinguishment of $35.5 million of Convertible Notes for $30.2 million in cash offset by $27.5 million in proceeds from the sale of UMC common stock. Working capital decreased to $295.2 million at September 30, 2005 from $328.5 million at December 31, 2004. This decrease was primarily attributable to the aforementioned Convertible Note extinguishments and capital expenditures.

Accounts Receivable increased by $6.8 million to $26.4 million at September 30, 2005 as compared to $19.6 million at December 31, 2004. This increase reflects both higher billings in the September 30, 2005 quarter and the timing of billings.

Inventories decreased $6.4 million to $32.3 million at September 30, 2005 compared to $38.6 million at December 31, 2004 primarily due to levels of shipments greater than procurements in the nine month period ended September 30, 2005.

Other current assets declined by $18.0 million to $28.5 million at September 30, 2005 from $46.5 million at December 31, 2004 primarily reflecting the sale of UMC common stock during the second quarter of 2005 offset by the increase in anticipated receipt of prepaid wafers in the subsequent twelve month period.

Foundry investments, advances and other assets decreased by $15.1 million to $82.8 million at September 30, 2005 as compared to $97.9 million at December 31, 2004 due to a reclassification of prepaid wafers to current assets and the amortization of maintenance contracts.

Property and equipment, less accumulated depreciation and amortization, decreased by $2.4 million to $45.2 million at September 30, 2005 compared to $47.6 million at December 31, 2004 due to depreciation expense being greater than expenditures for capital equipment.

Intangible assets, net, decreased by $10.8 million to $30.0 million at September 30, 2005 from $40.8 million at December 31, 2004, which is attributable to amortization of these assets.

We believe that our existing liquid resources and expected cash generated from future operations combined with our ability to borrow additional funds will be adequate to meet our operating and capital requirements and obligations for the next 12 months, which includes a payment to Fujitsu of $75.0 million expected to be made during the first half of 2006 contingent upon the achievement of certain milestones. We may in the future seek new or additional sources of funding. In addition, in order to secure additional wafer supply, we may from time to time consider various financial arrangements including joint ventures, equity investments, advance purchase payments, loans, or similar arrangements with independent wafer manufacturers in exchange for committed wafer capacity. To the extent that we pursue any such additional financing arrangements, additional debt or equity financing may be required. There can be no assurance that such additional financing will be available when needed or, if available, will be on favorable terms. Any future equity financing will decrease existing stockholders’ equity percentage ownership and may, depending on the price at which the equity is sold, result in dilution.

On October 25, 2005, we committed to undertake a corporate restructuring to consolidate operations, streamline engineering functions and lower operating expenses. These actions are not expected to impact our product direction or roll out strategy, which remains unchanged. As a result of these actions, we expect that total headcount will be reduced by approximately 12 to 14 percent. We currently estimate that the restructuring will result in a reduction in operating expense, effective the first quarter of 2006, of an estimated $3.5-$4.5 million per quarter. A restructuring charge, estimated to be in the $8-$10 million range, is expected to be recorded in the fourth quarter of 2005. Approximately $0.5 million-$0.7 million of this estimated charge is non-cash in nature and will not result in future cash expenditures.

Contractual Obligations

Our only significant operating lease is for our San Jose, California, facility and it expires in 2008. Annual rent is $3.9 million and increases approximately 3% annually. Leasehold improvements are amortized over the shorter of the non-cancelable lease term or the estimated useful life of the assets.

Off-Balance Sheet Arrangements

We do not have any financial partnerships with unconsolidated entities, such as entities often referred to as structured finance or special purpose entities, which are often established for the purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes. Accordingly, we are not exposed to any financing, liquidity, market or credit risk that could arise if we had such relationships.

process technologies at the fabs of Fujitsu, Seiko Epson, UMC or future foundries may not be achieved. This could harm our operating results.

We may not realize the expected benefits of our corporate restructuring, which may adversely affect our financial conditions and operating results.

In October 2005, we announced a corporate restructuring to consolidate operations, streamline engineering functions and lower operating expenses. We also announced a voluntary separation program for certain employees. As a result of these actions, we expect that total headcount will be reduced by approximately 12 to 14 percent. We currently estimate that the restructuring will result in a reduction in our operating expenses, effective in the first quarter of 2006, of an estimated $3.5 million to $4.5 million per quarter. A restructuring charge, estimated to be in the $8-$10 million range, is expected to be recorded in the fourth quarter of 2005. We cannot be certain as to the actual amount of this restructuring charge or the timing of its recognition for financial reporting purposes. These benefits may not materialize for a number of reasons, including if we incur unanticipated costs in closing facilities or consolidating our operations or if the actual headcount reduction resulting from our voluntary separation program is lower than anticipated. In addition, we expect that a portion of the estimated reduction in our operating expenses resulting from the reorganization will be offset by other operating expenses, including stock compensation expense that we will recognize beginning in the first quarter of 2006 as a result of the adoption of SFAS 123R. If we are unsuccessful in implementing our restructuring plan, we may experience disruptions in our operations and higher ongoing costs, which may adversely affect our operating results.

A downturn in the communications equipment end market or computing end market could cause a reduction in demand for our products and limit our ability to maintain or increase revenue levels and operating results.

The majority of our revenue is derived from customers in the communications equipment and computing end markets. Any deterioration in these end markets or any reduction in technology capital spending could lead to a reduction in demand for our products. For example, in the past, a general weakening in demand for programmable logic products from customers in the communications end market has adversely affected our revenue. Whenever adverse economic or end market conditions exist, there is likely to be an adverse effect on our operating results.

The cyclical nature of the semiconductor industry may limit our ability to maintain or increase revenue levels and operating results during industry downturns.

The semiconductor industry is highly cyclical, to a greater extent than other less technology-driven industries. Our financial performance has periodically been negatively affected by downturns in the semiconductor industry. Factors that contribute to these industry downturns include:

• the cyclical nature of the demand for the products of semiconductor customers;

• general reductions in inventory levels by customers;

• excess production capacity;

• general decline in end-user demand; and

• accelerated declines in average selling prices.

Historically, the semiconductor industry has experienced periodic downturns of varying degrees of severity and duration. Typically, after such downturns, semiconductor industry conditions improve, although such improvement may not be significant or sustainable. Increased demand for semiconductor industry products may not proportionately increase demand for programmable logic products in general, or our products in particular. Even if demand for our products increases, average sales prices for our products may not increase, and could decline. Whenever adverse semiconductor industry conditions or other similar conditions exist, there is likely to be an adverse effect on our operating results.

We face risks related to pending litigation and an ongoing informal inquiry by the Securities and Exchange Commission.

In September and October 2004, three putative class action complaints were filed in the United States District Court for the District of Oregon against Lattice Semiconductor Corporation, our Chief Executive Officer and President Stephen A. Skaggs, and our former Chief Executive Officer Cyrus Y. Tsui. These complaints were filed on behalf of a putative class of investors who purchased our stock between April 22, 2003 and April 19, 2004. They generally allege violations of federal securities laws arising out of our previously announced restatement of financial results for the first, second and third quarters of 2003. Consistent with the usual procedures for cases of this kind, these cases were amended and consolidated into a single action. In such amended and consolidated complaint filed January 27, 2005 our former President and our former Controller were added as defendants. We believe that the complaints are without merit, and we intend to vigorously defend against the lawsuits.

kind, these cases were consolidated into a single putative shareholder derivative action. On April 1, 2005, an amended and consolidated complaint was filed. On May 16, 2005, the Company, acting through a Special Litigation Committee (“SLC”) appointed by the Board of Directors, filed a motion to stay the proceedings to allow the SLC to conduct an investigation. On July 18^th, 2005, the Circuit Court held a hearing and stayed the action until a status conference is held. A status conference was scheduled for October 24, 2005, but has been indefinitely postponed. The SLC has been discussing with counsel for the derivative plaintiffs a potential settlement of the derivative action on terms that, among other things, would provide for our Board of Directors to adopt specified corporate governance changes, for the dismissal with prejudice of all claims asserted by the derivative plaintiffs, and for the payment of plaintiffs’ counsel’s fees and expenses. Such a potential settlement would be subject to and would be effective only if and when, among other things, the parties execute final settlement documents and obtain approval from the Circuit Court. If a settlement agreement is not reached, or is reached but does not become effective, the derivative litigation would continue. Settlement of the derivative litigation would not cover or settle the federal securities action.

If we are unable to effectively and efficiently implement our plan to improve our internal controls there could be a material adverse effect on our operations or financial results.

We received notice from our independent registered public accounting firm that, in connection with the 2003 year-end audit, the independent registered public accounting firm identified a material weakness in our internal controls and procedures relating to separation of duties and establishment of standards for review of journal entries and related file documentation. Although we have implemented various initiatives that have remedied this material weakness, we also intend to make additional changes to our internal controls to address the issues that gave rise to the material weakness.

During our 2004 year-end financial statement closing, we identified a significant deficiency in our internal controls relating to a mechanical error in calculating a unique inventory allowance, which occurred because newly assigned employees did not recognize that the required allowance had been calculated and recorded by existing procedures. The error was not present in previously issued financial statements and was corrected before the year- end financial statements were issued. Additional training and review procedures have been instituted to remedy this deficiency. During 2005, we intend to perform additional training as well as identify ways to modify and automate our inventory compilation processes to make them less vulnerable to manual errors.

On August 9, 2005, we announced that our Audit Committee had completed its previously announced examination, which concerned issues primarily associated with executive compensation and several items pertaining to our internal controls. In connection with the completion of its examination, the Audit Committee recommended, and the board of directors adopted, a number of recommended enhancements to our policies and procedures, including internal control procedures, which are described in “Item 4. Controls and Procedures.”

No assurance can be given that we will be able to successfully implement our revised internal controls and procedures and the recently adopted enhancements, or that our revised controls and procedures or enhancements will have the desired effect. In addition, we may be required to hire additional employees, and may experience higher than anticipated capital expenditures and operating expenses, during the implementation of these changes and thereafter. Furthermore, future assessments of our internal controls and procedures may reveal new material

weaknesses or significant deficiencies. If we are unable to implement these changes to our internal controls and procedures effectively or efficiently, or if we discover additional material weaknesses or significant deficiencies, there could be a material adverse effect on our operations or financial results.

The termination of the employment of our long-time Chief Executive Officer may have an adverse impact on our business.

On August 9, 2005, we announced that our board of directors had terminated the employment of our then Chief Executive Officer, Cyrus Y. Tsui. Mr. Tsui served as Chief Executive Officer for almost 17 years, played an integral role in our product definition and development and sales strategy during that time, and had strong business relationships with a number of our key employees, distributors and suppliers. Although we have confidence in our new Chief Executive Officer, Stephen A. Skaggs, and the other members of our executive management team, the departure of Mr. Tsui may have an adverse impact on our business and operations.

Changes in accounting for equity compensation will adversely affect our consolidated statement of operations and could adversely affect our ability to attract and retain employees.

We have historically used stock options as a key component of employee compensation in order to align employees’ interests with the interests of our stockholders, encourage employee retention, and provide competitive compensation packages. The Financial Accounting Standards Board has adopted changes to generally accepted accounting principles that require us and other companies to record a charge to earnings for employee stock option grants and other equity incentives beginning in the quarter ended March 31, 2006. To the extent that these or other new regulations make it more difficult or expensive to grant options to employees, we will incur increased compensation costs. We may also change our equity compensation strategy or find it difficult to attract, retain and motivate employees. Any of these results could materially and adversely affect our business.

Our wafer supply could be interrupted or reduced, which may result in a shortage of products available for sale.

We do not manufacture finished silicon wafers. Currently, our silicon wafers are manufactured by Seiko Epson in Japan, UMC in Taiwan, Chartered Semiconductor in Singapore, and Fujitsu in Japan. If any of our current or future foundry partners significantly interrupts or reduces our wafer supply, our operating results could be harmed.

In the past, we have experienced delays in obtaining wafers and in securing supply commitments from our foundries. At present, we anticipate that our supply commitments are adequate. However, these existing supply commitments may not be sufficient for us to satisfy customer demand in future periods. Additionally, notwithstanding our supply commitments we may still have difficulty in obtaining wafer deliveries consistent with the supply commitments. We negotiate wafer prices and supply commitments from our suppliers on at least an annual basis. If any of our foundry partners were to reduce its supply commitment or increase its wafer prices, and we cannot find alternative sources of wafer supply, our operating results could be harmed.

Many other factors that could disrupt our wafer supply are beyond our control. Since worldwide manufacturing capacity for silicon wafers is limited and inelastic, we could be harmed by significant industry-wide increases in overall wafer demand or interruptions in wafer supply. Additionally, a future disruption of any of our foundry partners’ foundry operations as a result of a fire, earthquake, act of terrorism, political unrest, governmental uncertainty, war, or other natural disaster or catastrophic event could disrupt our wafer supply and could harm our operating results.

If our foundry partners experience quality or yield problems, we may face a shortage of products available for sale.

We depend on our foundries to deliver reliable silicon wafers with acceptable yields in a timely manner. As is common in our industry, we have experienced wafer yield problems and delivery delays. If our foundries are unable for a prolonged period to produce silicon wafers that meet our specifications, with acceptable yields, our operating results could be harmed.

Our stock price may continue to experience large fluctuations.

In recent years, the price of our common stock has fluctuated greatly. These price fluctuations have been rapid and severe and have left investors little time to react. The price of our common stock may continue to fluctuate greatly in the future due to a variety of company specific factors, including:

• quarter-to-quarter variations in our operating results;

• shortfalls in revenue or earnings from levels expected by securities analysts;

• announcements of technological innovations or new products by other companies; and

• any developments in the pending shareholder class action and derivative suits and the Securities and Exchange Commission’s informal inquiry.

At September 30, 2005, our book value per share was $4.56 compared to our stock price, which has ranged from a low of $4.10 per share to a high of $5.79 per share in the nine months ended September 30, 2005. Presently, our stock price is trading near our consolidated book value. Should our stock price drop below book value for a sustained period, it may become necessary to record an impairment charge to goodwill which would reduce our results of operations.

We may not be able to successfully compete in the highly competitive semiconductor industry.

The semiconductor industry is intensely competitive and many of our direct and indirect competitors have substantially greater financial, technological, manufacturing, marketing and sales resources. If we are unable to compete successfully in this environment, our future results will be adversely affected.

The current level of competition in the programmable logic market is high and may increase in the future. We currently compete directly with companies that have licensed our technology or have developed similar products. We also compete indirectly with numerous semiconductor companies that offer products based on alternative technical solutions. These direct and indirect competitors are established multinational semiconductor companies as well as emerging companies.

We may fail to retain or attract the specialized technical and management personnel required to successfully operate our business.

To a greater degree than most non-technology companies or larger technology companies, our future success depends on our ability to attract and retain highly qualified technical and management personnel. As a mid-sized company, we are particularly dependent on a relatively small group of key employees. Competition for skilled technical and management employees is intense within our industry. As a result, we may not be able to retain our existing key technical and management personnel. In addition, we may not be able to attract additional qualified employees in the future. If we are unable to retain existing key employees or are unable to hire new qualified employees, our operating results could be adversely affected.

If we are unable to adequately protect our intellectual property rights, our financial results and competitive position may suffer.

Our success depends in part on our proprietary technology. However, we may fail to adequately protect this technology. As a result, we may lose our competitive position or face significant expense to protect or enforce our intellectual property rights.

We intend to continue to protect our proprietary technology through patents, copyrights and trade secrets. Despite this intention, we may not be successful in achieving adequate protection. Claims allowed on any of our patents may not be sufficiently broad to protect our technology. Patents issued to us also may be challenged, invalidated or circumvented. Finally, our competitors may develop similar technology independently.

Companies in the semiconductor industry vigorously pursue their intellectual property rights. If we become involved in protracted intellectual property disputes or litigation we may be forced to use substantial financial and management resources, which could have an adverse effect on our operating results.

Our industry is characterized by frequent claims regarding patents and other intellectual property rights of others. We have been, and from time-to-time expect to be, notified of claims that we are infringing the intellectual property rights of others. If any third party makes a valid claim against us, we could face significant liability and could be required to make material changes to our products and processes. In response to any claims of infringement, we may seek licenses under patents that we are alleged to be infringing. However, we may not be able to obtain a license on favorable terms, or at all, without our operating results being adversely affected.

Our marketable securities, which we hold for strategic reasons, are subject to equity price risk and their value may fluctuate.

Currently we hold substantial equity in UMC, which we acquired as part of a strategic investment to obtain certain manufacturing rights. The market price and valuation of these equity shares has fluctuated widely due to business, stock market or other conditions over which we have little control. During 2001, we recorded a pre-tax impairment loss related to this investment. In the future, UMC common stock may continue to experience significant price volatility. In 2002, 2004 and 2005, we sold a portion of our UMC shares, but have otherwise not attempted to reduce or eliminate this equity price risk through hedging or similar techniques. As a result, substantial, sustained changes in the market price of UMC common stock could impact our financial results.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

There have been no material changes from what we reported in our Annual Report on Form 10-K for the year ended December 31, 2004.

ITEM 4. CONTROLS AND PROCEDURES

Conclusion Regarding the Effectiveness of Disclosure Controls and Procedures

Under the supervision and with the participation of our management, including our principal executive officer and principal financial officer, we conducted an evaluation of our disclosure controls and procedures, as such term is defined under Rule 13a-15(e) promulgated under the Securities Exchange Act of 1934, as amended. Based on this evaluation, our principal executive officer and our principal financial officer concluded that our disclosure controls and procedures were effective as of the end of the period covered by this quarterly report.

Changes in Internal Control over Financial Reporting

On June 14, 2005, we announced that Cyrus Y. Tsui, our then Chief Executive Officer and Chairman of the Board, and Rodney F. Sloss, our then Vice President of Finance, had been placed on paid leave of absence pending completion of an independent examination being undertaken by our Audit Committee. Mr. Tsui, as Chief Executive Officer, Chairman and trading compliance officer and Mr. Sloss, as our Vice President of Finance, each had an important role in our internal control over financial reporting and our disclosure controls and procedures. At that time, the Board appointed Stephen A. Skaggs as acting Chief Executive Officer and
Patrick S. Jones as acting Chairman of the Board. On August 9, 2005, we announced the appointment of Mr. Skaggs as Chief Executive Officer and Mr. Jones as Chairman of the Board, and that our board of directors had terminated the employment of Mr. Tsui and Mr. Sloss. On August 9, 2005, Martin R. Baker, our Corporate Vice President, General Counsel and Secretary, was also designated trading compliance officer. At that time, we also announced that the Audit Committee had completed its previously announced examination.

In connection with the completion of its examination, the Audit Committee recommended, and the board of directors adopted, several enhancements to our policies and procedures, including procedures that relate to internal control. The enhancements adopted include the following: Company officers cannot provide approvals or grant exceptions to Company policy regarding matters that relate to themselves; the CFO reviews and approves the expense reports of the CEO; the Company’s independent registered public accounting firm reviews expense reimbursement procedures during the annual audit; the Audit Committee, in consultation with the Chief Financial Officer, will periodically consider whether to increase the quarterly review activities conducted by the Company’s independent registered public accounting firm; the Company has reinforced its computer use policy; the Board and senior management have reinforced the Company’s existing policy that prohibits the use of Company personnel and resources for non-business related purposes; the trading compliance officer’s equity transactions must be approved by the CFO; all payments to officers under a Board approved incentive or bonus plan will be reviewed and approved by the Compensation Committee prior to payment; the Board will periodically review staffing needs in all

PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

In September and October 2004, three putative class action complaints were filed in the United States District Court for the District of Oregon against Lattice Semiconductor Corporation, our Chief Executive Officer and President Stephen A. Skaggs, and our former Chief Executive Officer Cyrus Y. Tsui. These complaints were filed on behalf of a putative class of investors who purchased our stock between April 22, 2003 and April 19, 2004. They generally allege violations of federal securities laws arising out of our previously announced restatement of financial results for the first, second and third quarters of 2003. Consistent with the usual procedures for cases of this kind, these cases were amended and consolidated into a single action. In such amended and consolidated complaint filed January 27, 2005 our former President and our former Controller were added as defendants. We believe that the complaints are without merit, and we intend to vigorously defend against the lawsuits.

In September and October 2004, two shareholder derivative complaints were filed, purportedly on behalf of Lattice Semiconductor Corporation, in the Circuit Court of the State of Oregon for the County of Washington, against all members of the board of directors at that time, certain former directors, and certain executive officers. The derivative plaintiffs make allegations substantially similar to those in the putative class action complaints, as well as allegations of breach of fiduciary duty, abuse of control, gross mismanagement, waste of corporate assets, and unjust enrichment. Consistent with the usual procedures for cases of this kind, these cases were consolidated into a single putative shareholder derivative action. On April 1, 2005, an amended and consolidated complaint was filed. On May 16, 2005, the Company, acting through a Special Litigation Committee (“SLC”) appointed by the Board of Directors, for the purpose of conducting a review and examination of the claims contained in the aforementioned shareholder derivative complaints, filed a motion to stay the proceedings to allow the SLC to conduct an investigation. On July 18^th, 2005, the Circuit Court held a hearing and stayed the action until a status conference is held. A status conference was scheduled for October 24, 2005, but has been indefinitely postponed. The SLC has been discussing with counsel for the derivative plaintiffs a potential settlement of the derivative action on terms that, among other things, would provide for our Board of Directors to adopt specified corporate governance changes, for the dismissal with prejudice of all claims asserted by the derivative plaintiffs, and for the payment of plaintiffs’ counsel’s fees and expenses. Such a potential settlement would be subject to and would be effective only if and when, among other things, the parties execute final settlement documents and obtain approval from the Circuit Court. If a settlement agreement is not reached, or is reached but does not become effective, the derivative litigation would continue. Settlement of the derivative litigation would not cover or settle the federal securities action.

ITEM 5. OTHER INFORMATION

Entry into Material Definitive Agreements

On November 3, 2005, the Company entered into employment agreements with three of its executive officers: Jan Johannessen, its Senior Vice President and Chief Financial Officer, Martin Baker, its Corporate Vice President, General Counsel and Secretary, and Steven Donovan, Corporate Vice President, Sales.

Under the terms of his employment agreement, Mr. Johannessen’s base annual salary will be $262,096. Mr. Johannessen is also entitled to receive a bonus for the 2005 fiscal year of up to $100,000, 50% of which will be earned on December 30, 2005 if Mr. Johannessen is still employed on such date. The remaining 50% will be earned based on the achievement of performance objectives that are mutually agreed upon in writing by the Compensation Committee and Mr. Johannessen. For subsequent fiscal years, Mr. Johannessen will participate in an executive bonus plan that will be established by the Company. Under this plan, Mr. Johannessen will be eligible to receive a target bonus of up to 40% of his annual base salary (or such higher figure as determined by the Compensation Committee) based on the achievement of specific milestones to be mutually agreed upon by the Compensation Committee and Mr. Johannessen; provided that Mr. Johannessen may receive an annual bonus of up to 250% of the target bonus for superior achievement of the milestones.

Under the terms of his employment agreement, Mr. Baker’s base annual salary will be $224,698. Mr. Baker is also entitled to receive a bonus for the 2005 fiscal year of up to $80,000, 50% of which will be earned on December 30, 2005 if Mr. Baker is still employed on such date. The remaining 50% will be earned based on the achievement of performance objectives that are mutually agreed upon in writing by the Compensation Committee and Mr. Baker. For subsequent fiscal years, Mr. Baker will participate in an executive bonus plan that will be established by the Company. Under this plan, Mr. Baker will be eligible to receive a target bonus of up to 30% of his annual base salary (or such higher figure as determined by the Compensation Committee) based on the achievement of specific milestones to be mutually agreed upon by the Compensation Committee and Mr. Baker; provided that Mr. Baker may receive an annual bonus of up to 250% of the target bonus for superior achievement of the milestones.

Under the terms of his employment agreement, Mr. Donovan’s base annual salary will be $227,115. Mr. Donovan is also entitled to receive a bonus for the 2005 fiscal year of up to $40,000, 50% of which will be earned on December 30, 2005 if Mr. Donovan is still employed on such date. The remaining 50% will be earned based on the achievement of performance objectives that are mutually agreed upon in writing by the Compensation Committee and Mr. Donovan. For subsequent fiscal years, Mr. Donovan will participate in an executive bonus plan that will be established by the Company. Under this plan, Mr. Donovan will be eligible to receive a target bonus of up to 30% of his annual base salary (or such higher figure as determined by the Compensation Committee) based on the achievement of specific milestones to be mutually agreed upon by the Compensation Committee and Mr. Donovan; provided that Mr. Donovan may receive an annual bonus of up to 250% of the target bonus for superior achievement of the milestones.

Each of the employment agreements is “at-will”, and the Company may terminate the employment of the executive officer with or without Cause (as defined in the employment agreement) by giving the executive officer 30 days advance written notice. Each executive officer may also terminate his employment by giving the Company 30 days advance written notice.

If the Company terminates the employment of an executive officer without Cause or if an executive officer terminates his employment with Good Reason (as defined in the employment agreement), then the executive officer will be entitled to receive (i) a severance payment equal to 1.0 times his then annual base salary plus 1.0 times his then target bonus (adjusted pro rata on a monthly basis depending on the month the termination occurs) and (ii) reimbursement of health insurance premiums for a period of 12 months following his termination date (or such earlier date upon which he receives comparable medical coverage). In addition, if an executive officer is terminated without Cause or terminates his employment with Good Reason within 24 months of a Change in Control (as defined in the employment agreement), the executive officer will (i) receive a severance payment equal to 1.0 times his then current base salary plus 1.0 times his target bonus (without any pro rata adjustment) and (ii) receive reimbursement of health insurance premiums for 12 months. All severance payments are conditioned upon the execution by the executive officer of a release of claims against the Company and his compliance with certain obligations owed to the Company under his employment agreement.

If any of the benefits and payments provided under the employment agreement are considered “parachute payments” within the meaning of Section 280G of the Internal Revenue Code (the “Code”) and are thus subject to the excise tax imposed by Section 4999 of the Code, then the executive officer’s benefits under the employment shall be payable either (1) in full, or (2) as to such lesser amount which would result in no portion of the such benefits being subject to excise tax under Section 4999 of the Code, whichever of the foregoing amounts, taking into account the applicable federal, state and local income taxes and the excise tax imposed by Section 4999, results in the receipt by the executive officer on an after-tax basis, of the greatest amount of benefits under the employment agreement.

State of Delaware		93-0835214
(State or other jurisdiction of incorporation or organization)		(I.R.S. Employer Identification No.)

5555 N.E. Moore Court, Hillsboro, Oregon		97124-6421
(Address of principal executive offices)		(Zip Code)

(503) 268-8000
(Registrant’s telephone number, including area code)

PART I. FINANCIAL INFORMATION

Item 1.	Financial Statements (unaudited)

	Condensed Consolidated Statement of Operations - Three and Nine Months Ended September 30, 2005 and September 30, 2004

	Condensed Consolidated Balance Sheet - September 30, 2005 and December 31, 2004

	Condensed Consolidated Statement of Cash Flows - Nine Months Ended September 30, 2005 and September 30, 2004

	Notes to Condensed Consolidated Financial Statements

Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations

Item 3.	Quantitative and Qualitative Disclosures About Market Risk

Item 4.	Controls and Procedures

PART II. OTHER INFORMATION

Item 1.	Legal Proceedings

Item 5.	Other Information

Item 6.	Exhibits

	Signatures

Exhibits

10.1		Employment Agreement with Jan Johannessen, Senior Vice President and Chief Financial Officer

10.2		Employment Agreement with Martin Baker, Corporate Vice President, General Counsel and Secretary

10.3		Employment Agreement with Stephen Donovan, Corporate Vice President, Sales

10.4		Executive Bonus Plan

31.1		Certification of Chief Executive Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended.

31.2		Certification of Chief Financial Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended.

32.1		Certification of Chief Executive Officer and Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

By:	/s/ Jan Johannessen
	Jan Johannessen
	Senior Vice President and Chief Financial Officer (Duly Authorized Officer and Principal Financial and Accounting Officer)

Other Information

Exhibits

Appointment of Director