Exhibit 10.1

Execution Version

November 3, 2016

Darin Billerbeck

Dear Darin:

Reference is made to the Agreement and Plan of Merger by and among Lattice Semiconductor Corporation (the “Company”), Canyon Bridge Acquisition Company, Inc. (“Parent”) and the other parties thereto, dated as of November 3, 2016 (the “Merger Agreement”) and the Employment Agreement, dated November 8, 2010, by and between you and the Company (the “Employment Agreement”). Capitalized terms used but not otherwise defined herein have the meaning set forth in the Merger Agreement.

In consideration of your continued employment with the Company following the Effective Time, your severance protections as set forth in the Employment Agreement as modified herein and your receipt of cash consideration in the Merger in respect of your Company RSUs and your Company Stock Options (whether payable at Closing or post-Closing), you hereby agree and acknowledge pursuant to this letter agreement (this “Letter Agreement”) as follows:

1. Effective as of the Closing Date, you waive any right you may have to any payments and benefits, whether under your Employment Agreement, any compensatory equity award agreement or otherwise, as a result of, or in connection with, a diminution or adverse change to your duties, authority, title or responsibilities solely in connection with the Merger, including, for the avoidance of doubt, your right to receive the termination benefits described in Section 6 of the Employment Agreement upon a termination of your employment with the Company for Good Reason (as defined in the Employment Agreement). You acknowledge and agree that the changes to your duties, authority, title and responsibilities as of immediately following the Closing Date that occur as a result of the Merger, or as a result of the Company no longer being a publicly traded/listed corporation, do not constitute Good Reason.

2. Effective as of the Closing Date, Section 6(h) of the Employment Agreement is hereby deleted and replaced in its entirety with the following:

“Good Reason Definition. For all purposes under this Agreement, “Good Reason” shall mean the occurrence of any of the following, without Executive’s express written consent: (i) Executive ceases to be the principal executive officer of the Company; (ii) a material diminution Executive’s Base Salary or Target Amount other than a one-time reduction (not exceeding 10% in the aggregate) that also is applied to substantially all other executive officers of the Company on Executive’s written recommendation or written approval if Executive’s reduction is substantially proportionate to, or no greater than (on a percentage basis), the reduction applied to substantially all other executive officers; (iii) the Company’s material breach of this Agreement; or (iv) the Company requiring Executive to relocate his primary place of employment to a facility or location that is more than 30 miles from his principal place of employment as of the Effective Date; provided, however, that Executive will only have Good Reason if (A) he notifies the Board in writing of the existence of the condition which he believes constitutes Good Reason within ninety (90) days of the initial existence of such condition (which notice specifically identifies such condition), (B) Company fails to remedy such condition within thirty (30) days after the date on which the Board receives such notice (the “Remedial Period”), and (C) his resignation is effective within thirty (30) days after the expiration of the Remedial Period.”

3. Effective as of the Closing Date, Section 6(a) of the Employment Agreement is hereby deleted and replaced in its entirety with the following:

“Severance Pay. If there is an Involuntary Termination (as defined below) of Executive’s Employment, then the Company shall pay Executive an amount equal to of the greater of (i) $2,000,000 or (ii) two (2) times the sum of Executive’s then Base Salary and Target Amount (with no pro ration), in each case, as in effect on the date of the Involuntary Termination (collectively in the aggregate, the “Cash Severance”). Such Cash Severance shall be made in a single lump sum cash payment to Executive on the effective date of the separation agreement referenced in Section 8(a). Executive shall also be entitled to receive the benefits set forth in Section 6(b).”

4. If you remain continuously Employed (as defined in the Employment Agreement) until the second anniversary of the Closing Date (the “Severance Vesting Date”), the Company will pay you the Cash Severance (as defined under your Employment Agreement), in a single lump sum, less applicable withholding Tax, on the 30th day following the Severance Vesting Date, subject to your signing and allowing to become effective the Company’s standard release of all claims, in the form attached to your Employment Agreement, as of the date hereof (subject to such changes as are necessary for compliance with applicable law).

5. Effective as of the Closing Date, Section 6(d) of the Employment Agreement is hereby deleted and replaced in its entirety with the following:

“[Reserved]”

6. Effective as of the Closing Date, the definition of “Compensatory Equity” set forth in Section 2(d) of the Employment Agreement is hereby deleted and replaced in its entirety with the following:

“(any compensatory equity grants to Executive made prior to November 3, 2016, which is the date on which the Company and Canyon Bridge Acquisition Company, Inc. (“Parent”) entered into the Agreement and Plan of Merger by and among the Company, Parent and the other parties thereto, together with any rights to receive cash in accordance with Section 2.04(b) of that Agreement and Plan of Merger with respect to such equity grants (“Compensatory Equity”)).”

7. You understand that any outstanding and unvested Company Stock Options you hold at or as of immediately prior to the Effective Time (after taking into account any vesting related to the satisfaction of any corporate performance goals) will not accelerate and become fully vested at or prior to the Effective Time, and will instead be treated as unvested In-the-Money Company Stock Options under Section 2.04(b) of the Merger Agreement. If you incur an Involuntary Termination (as defined in the Employment Agreement) prior to the Severance Vesting Date, any unvested In-the-Money Company Stock Options shall become fully vested, effective as of the date of such termination, subject to your satisfaction of the conditions to such acceleration as set forth in the Employment Agreement (including your signing and allowing to become effective the Company’s standard release of all claims, as attached to your Employment Agreement as of the date hereof (subject to such changes as are necessary for compliance with applicable law), within 30 days following your termination date).

8. Parent will establish an incentive plan to retain and incentivize Company employees, pursuant to which certain key employees of the Company, including you, will receive incentive awards, the specific terms to be approved by Parent in consultation with you.

9. You agree that except as set forth in this Letter Agreement, all the other provisions of the Employment Agreement shall remain in effect.

This Letter Agreement will be null, void and have no force and effect if the Merger Agreement is terminated and the Merger does not occur. You acknowledge and agree that this Letter Agreement is intended to be a material inducement for Parent to enter into the Merger Agreement and effect the transactions contemplated thereby, and Parent is relying on your execution and delivery of this Letter Agreement in determining whether to proceed to consummate the Merger. You also acknowledge and

agree that your continued employment with the Company following the Effective Time and your receipt of consideration in the Merger in respect of your Company RSUs and your Company Stock Options represents material and sufficient consideration for this Letter Agreement. By agreeing to this Letter Agreement, you further hereby waive and release any and all known or unknown rights to assert a claim that the consummation of the Merger, or changes to the terms and conditions of your employment as a result of the Merger, and made as a (direct or indirect) result of the Merger, constitute Good Reason under the Employment Agreement (as amended by this Letter Agreement).

This Letter Agreement, together with the Employment Agreement, represents the entire agreement and understanding between the Company, Parent and you as to the subject matter herein and supersedes all prior or contemporaneous agreements whether written or oral. This Letter Agreement may be modified only by written agreement executed the Company, Parent and you that is designated as a further amendment to this Letter Agreement. You acknowledge and agree that you are entering into this Letter Agreement voluntarily and without duress, and that nothing in this Letter Agreement constitutes “Good Reason” as defined under your Employment Agreement.

[Signature page follows]

Please sign below to indicate your acknowledgment and acceptance of the terms of this Letter Agreement.