First Addendum to Foundry Service Agreement



 EXHIBIT 10.17 
 NOTE: Portions of this Exhibit are the subject of a Confidential Treatment Request by the Registrant to the Securities and Exchange Commission (the “Commission”). Such portions have been
redacted and are marked with a “[***]” in the place of the redacted language. The redacted information has been filed separately with the Commission. 
 First Addendum to 
 the FOUNDRY AGREEMENT 
 THIS First Addendum to the Foundry Agreement by and between Hua Hong NEC Electronics Company Limited, a Chinese limited liability company
with offices at No. 1188 Chuan Qiao Road, Pu Dong New District, Shanghai, China (“HHNEC”), and Alpha and Omega Semiconductor Limited, a Bermuda exempted company with offices at 495 Mercury Drive, Sunnyvale, California 94085, USA
(“AOS”), is made effective as of this 28th day of July, 2005, pursuant to Section 10.9 of the Foundry Agreement (dated January 10, 2002 by and between HHNEC and AOS). 
 For valid and sufficient consideration, AOS and HHNEC agree as follows: 
  

	1.	Terms. 

 The initial Term
set forth in Section 9.1 of the Foundry Agreement shall be renewed and extended for a subsequent Term of five (5) years immediately after the initial Term. AOS and HHNEC shall begin negotiating additional term in good faith at least six
(6) months prior to the expiration of the subsequent Term. At the expiration or termination, each party shall nonetheless use its reasonable best effort to effect an orderly transition for a period of not less than three (3) years.

  

	2.	Production Volume Commitment Table 

  

					
	Monthly Supply & Purchase ( unit: wafers )
	 Fab I
 HHNEC
	 	minimum	 	[***]
	 	maximum	 	[***]
	 Fab II
 HHNEC
	 	minimum	 	[***]
	 	maximum	 	[***]
	 Total:      minimum  [***]         maximum [***]


 2.1 The volume of Fab II of HHNEC in the table above shall not be applied until the Fab II is released for mass production. 
 2.2 The maximum is the capacity that HHNEC committed to offer to AOS. And the minimum is the order that AOS committed to order to HHNEC. If AOS fails to reach the minimum level in certain month, AOS shall
buy the short wafers in the following month. 
 2.3 The minimum loading requirement and make-up plan required from AOS above is contingent on
such condition that HHNEC maintains 1) consistent and reliable quality standards and output; 2) sufficient resources for new technology development to make AOS products competitive in the market; and 3) enough capacity to meet the foregoing
requirements. 
  
 ***CONFIDENTIAL PORTIONS OMITTED AND
FILED SEPARATELY WITH THE COMMISSION*** 
  

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	3.	Price of the Wafer 

 The
price of the wafer shall be discussed and fixed by both parties every six months to be market competitive. 
  

	4.	Integration. 

 Any
provision set forth in the Foundry Agreement that is not affected by this First Addendum shall remain valid and in full force and effect. This First Addendum shall upon execution become an integral part of the Foundry Agreement, which embodies the
entire and complete understanding of the parties in relation to the subject matter of the Foundry Agreement and overrides or supersedes all prior promises, agreements, understandings, proposals and representations and warranties made by either party
with respect to this subject matter. 
 IN WITNESS WHEREOF, the Parties have caused this First Addendum to the Foundry Agreement to be executed
by their duly authorized representative on the date first written above. 
  

							
	HHNEC	  	AOS
		
	Hua Hong NEC Electronics Co., Ltd.	  	Alpha & Omega Semiconductor Ltd.
				
	 By
	 	 /s/ Wen Tao Liu
	  	By	 	 /s/ Mike F. Chang

				
	 Name:
	 	 Wen Tao Liu
	  	Name:	 	 Mike F. Chang

				
	 Title:
	 	 President
	  	Title:	 	 President

				
	 Date:
	 	 07-28-2005
	  	Date:	 	 8-1-2005


  

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