UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

SCHEDULE 14A

(Rule 14A-101)

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

Filed by the Registrant  ☒                             Filed by a Party other than the Registrant  ☐

Check appropriate box:

☐	Preliminary Proxy Statement
☐	Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
☐	Definitive Proxy Statement
☒	Definitive Additional Materials
☐	Soliciting Material under Rule 14a-12

LATTICE SEMICONDUCTOR CORPORATION

(Name of Registrant as Specified in Its Charter)

(Name of Person(s) Filing Proxy Statement, if Other Than the Registrant)

Payment of filing fee (Check the appropriate box):

☒	No fee required.
☐	Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.
	(1)	Title of each class of securities to which transaction applies:
	(2)	Aggregate number of securities to which transaction applies:
	(3)	Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (Set forth the amount on which the filing fee is calculated and state how it was determined):
	(4)	Proposed maximum aggregate value of transaction:

	(5)	Total fee paid:
☐	Fee paid previously with preliminary materials.
☐	Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the form or schedule and the date of its filing.
	(1)	Amount Previously Paid:
	(2)	Form, Schedule or Registration Statement No.:
	(3)	Filing Party:
	(4)	Date Filed:

February 9, 2017

Dear Fellow Stockholder:

We previously sent you proxy material for the Special Meeting of Stockholders of Lattice Semiconductor Corporation, to be held on February 28, 2017. Your Board of Directors unanimously recommends that stockholders approve the proposed transaction with Canyon Bridge Acquisition Company, Inc., and vote FOR all of the proposals listed on your proxy card.

Your vote is important, no matter how many or how few shares you may own. Please vote TODAY by accessing the Internet, by telephone or by completing, signing, dating and returning the enclosed proxy card in the envelope provided.

Very truly yours,

Darin G. Billerbeck

President and Chief Executive Officer

REMEMBER:

You can vote your shares by accessing the Internet and by telephone.

Please follow the easy instructions on the enclosed proxy card.

If you have any questions or need assistance in voting

your shares, please call our proxy solicitor,

INNISFREE M&A INCORPORATED,

TOLL-FREE at 1 (888) 750-5834.

Additional Information and Where You Can Find It

In connection with the proposed merger, Lattice Semiconductor Corporation (the “Company”) has filed a proxy statement with the Securities and Exchange Commission (the “SEC”). Additionally, the Company may file other relevant materials with the SEC in connection with the proposed merger. The proxy statement has been sent to the stockholders of the Company and contains important information about the proposed merger and related matters. INVESTORS AND SECURITY HOLDERS OF THE COMPANY ARE URGED TO READ THE PROXY STATEMENT AND OTHER RELEVANT MATERIALS FILED WITH THE SEC WHEN THEY BECOME AVAILABLE BEFORE MAKING ANY VOTING OR INVESTMENT DECISION WITH RESPECT TO THE PROPOSED MERGER BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION ABOUT THE MERGER AND THE PARTIES TO THE MERGER. The materials filed by the Company with the SEC may be obtained free of charge at the SEC’s web site at www.sec.gov or upon request from the Company’s Investor Relations Department at lscc@globalirpartners.com.

Participants in the Solicitation

The Company and its directors will, and certain other members of its management and its employees as well as Canyon Bridge Acquisition Company, Inc. and Canyon Bridge Merger Sub, Inc. and their directors and officers may, be deemed to be participants in the solicitation of proxies of Company stockholders in connection with the proposed merger. Investors and security holders may obtain more detailed information regarding the names, affiliations and interests of the Company’s executive officers and directors in the solicitation by reading the Company’s Annual Report on Form 10-K for the fiscal year ended January 2, 2016, the Company’s proxy statement on Schedule 14A for its 2016 Annual Meeting of Stockholders, and the proxy statement and other relevant materials filed with the SEC in connection with the merger. Additional information concerning the interests of the Company’s participants in the solicitation, which may, in some cases, be different than those of the Company’s stockholders generally, is set forth in the proxy statement.