<SEC-DOCUMENT>0001181431-11-039339.txt : 20110701
<SEC-HEADER>0001181431-11-039339.hdr.sgml : 20110701
<ACCEPTANCE-DATETIME>20110701172819
ACCESSION NUMBER:		0001181431-11-039339
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20110701
FILED AS OF DATE:		20110701
DATE AS OF CHANGE:		20110701

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ALPHA & OMEGA SEMICONDUCTOR Ltd
		CENTRAL INDEX KEY:			0001387467
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				000000000

	BUSINESS ADDRESS:	
		STREET 1:		475 OAKMEAD PARKWAY
		CITY:			SUNNYVALE
		STATE:			CA
		ZIP:			94085
		BUSINESS PHONE:		408-830-9742

	MAIL ADDRESS:	
		STREET 1:		475 OAKMEAD PARKWAY
		CITY:			SUNNYVALE
		STATE:			CA
		ZIP:			94085

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ALPHA & OMEGA SEMICONDUCTOR LTD
		DATE OF NAME CHANGE:	20070123

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SEQUOIA CAPITAL GROWTH III PRINCIPALS FUND
		CENTRAL INDEX KEY:			0001357260

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34717
		FILM NUMBER:		11947229

	BUSINESS ADDRESS:	
		STREET 1:		3000 SAND HILL RD BLDG 4
		CITY:			MENLO PARK
		STATE:			CA
		ZIP:			94025
		BUSINESS PHONE:		650-854-3927

	MAIL ADDRESS:	
		STREET 1:		3000 SAND HILL RD BLDG 4
		CITY:			MENLO PARK
		STATE:			CA
		ZIP:			94025

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SEQUOIA CAPITAL GROWTH PARTNERS III
		CENTRAL INDEX KEY:			0001367781
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34717
		FILM NUMBER:		11947228

	BUSINESS ADDRESS:	
		STREET 1:		3000 SAND HILL ROAD
		STREET 2:		BLDG 4, SUITE 180
		CITY:			MENLO PARK
		STATE:			CA
		ZIP:			94025
		BUSINESS PHONE:		650-854-3927

	MAIL ADDRESS:	
		STREET 1:		3000 SAND HILL ROAD
		STREET 2:		BLDG 4, SUITE 180
		CITY:			MENLO PARK
		STATE:			CA
		ZIP:			94025

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SCGF III MANAGEMENT LLC
		CENTRAL INDEX KEY:			0001367787
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34717
		FILM NUMBER:		11947231

	BUSINESS ADDRESS:	
		STREET 1:		3000 SAND HILL ROAD
		STREET 2:		BLDG 4, SUITE 180
		CITY:			MENLO PARK
		STATE:			CA
		ZIP:			94025
		BUSINESS PHONE:		650-854-3927

	MAIL ADDRESS:	
		STREET 1:		3000 SAND HILL ROAD
		STREET 2:		BLDG 4, SUITE 180
		CITY:			MENLO PARK
		STATE:			CA
		ZIP:			94025

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Sequoia Capital Growth Fund III AIV L P
		CENTRAL INDEX KEY:			0001385225
		STATE OF INCORPORATION:			NY

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34717
		FILM NUMBER:		11947230

	BUSINESS ADDRESS:	
		STREET 1:		3000 Sand Hill Rd
		STREET 2:		Bldg 4 Suite 180
		CITY:			Menlo Park
		STATE:			CA
		ZIP:			94025
		BUSINESS PHONE:		6508543927

	MAIL ADDRESS:	
		STREET 1:		3000 Sand Hill Rd
		STREET 2:		Bldg 4 Suite 180
		CITY:			Menlo Park
		STATE:			CA
		ZIP:			94025
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>rrd316083.xml
<DESCRIPTION>FORM 3 FOR SEQUOIA
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0203</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2011-07-01</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001387467</issuerCik>
        <issuerName>ALPHA &amp; OMEGA SEMICONDUCTOR Ltd</issuerName>
        <issuerTradingSymbol>AOSL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001367787</rptOwnerCik>
            <rptOwnerName>SCGF III MANAGEMENT LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>3000 SAND HILL ROAD, 4-250</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>MENLO PARK</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94025</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001385225</rptOwnerCik>
            <rptOwnerName>Sequoia Capital Growth Fund III AIV L P</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>3000 SAND HILL ROAD, 4-250</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>MENLO PARK</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94025</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001357260</rptOwnerCik>
            <rptOwnerName>SEQUOIA CAPITAL GROWTH III PRINCIPALS FUND</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>3000 SAND HILL ROAD, 4-250</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>MENLO PARK</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94025</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001367781</rptOwnerCik>
            <rptOwnerName>SEQUOIA CAPITAL GROWTH PARTNERS III</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>3000 SAND HILL ROAD, 4-250</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>MENLO PARK</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94025</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Shares</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2823300</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Sequoia Capital Growth Fund III AIV LP</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Shares</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>145800</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Sequoia Capital Growth III Principals Fund</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Shares</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>30900</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Sequoia Capital Growth Partners III LP</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Shares held directly by Sequoia Capital Growth Fund III AIV LP (&quot;SC AIV&quot;). The Reporting Person, SCGF III Management LLC (&quot;SCGF LLC&quot;), is the general partner of SC AIV and may be deemed to share voting and dispositive power with respect to the shares held by SC AIV. SCGF LLC disclaims beneficial ownership of the securities held by SC AIV except to the extent of its pecuniary interest therein.</footnote>
        <footnote id="F2">Shares held directly by Sequoia Capital Growth III Principals Fund (&quot;SC Principals&quot;). The Reporting Person, SCGF LLC, is the managing member of SC Principals and may be deemed to share voting and dispositive power with respect to the shares held by SC Principals. SCGF LLC disclaims beneficial ownership of the securities held by SC Principals except to the extent of its pecuniary interest therein.</footnote>
        <footnote id="F3">Shares held directly by Sequoia Capital Growth Partners III LP (&quot;SC Partners&quot;). The Reporting Person, SCGF LLC, is the general partner of SC Partners and may be deemed to share voting and dispositive power with respect to the shares held by SC Partners. SCGF LLC disclaims beneficial ownership of the securities held by SC Partners except to the extent of its pecuniary interest therein.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Melinda Dunn, by power of attorney for Douglas Leone, a Managing Member of SCGF III Management LLC</signatureName>
        <signatureDate>2011-07-01</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Melinda Dunn, by power of attorney for Douglas Leone, a Managing Member of SCGF III Management LLC, the General Partner of Sequoia Capital Growth Fund III AIV LP</signatureName>
        <signatureDate>2011-07-01</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Melinda Dunn, by power of attorney for Douglas Leone, a Managing Member of SCGF III Management LLC, the Managing Member of Sequoia Capital Growth III Principals Fund</signatureName>
        <signatureDate>2011-07-01</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Melinda Dunn, by power of attorney for Douglas Leone, a Managing Member of SCGF III Management LLC, the General Partner of Sequoia Capital Growth Partners III LP</signatureName>
        <signatureDate>2011-07-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24.
<SEQUENCE>2
<FILENAME>rrd283481_320425.htm
<DESCRIPTION>POWER OF ATTORNEY
<TEXT>
<HTML>
<HEAD>
<TITLE>
rrd283481_320425.html
</TITLE>
</HEAD>
<BODY>
<PRE>

LIMITED POWER OF ATTORNEY FOR SECTION 16(a) FILINGS

Know all by these presents, that the undersigned hereby constitutes and appoints Melinda Dunn the undersigned's true and lawful attorney-in-fact to:

(1)	Execute for and on behalf of the undersigned, in the undersigned's capacity as an officer, director and/or stockholder of any corporation or other person in which an investment fund affiliated with Sequoia Capital Operations, LLC makes an investment (each, a "Company"), Forms 3, 4, and 5 and amendments thereto in accordance with Section 16(a) of the Securities Exchange Act of 1934 and the rules thereunder;

(2)	Do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete and execute any such Form 3, 4, or 5 or amendment thereto and timely file such form with the United States Securities and Exchange Commission (the "SEC") and any stock exchange or similar authority; and

(3)	Take any other action of any type whatsoever which, in the opinion of such attorney-in-fact, may be necessary or desirable in connection with the foregoing authority, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Limited Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve.

The undersigned hereby grants to such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever required, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be done by virtue of this Limited Power of Attorney and the rights and powers herein granted.  The undersigned acknowledges that the foregoing attorney-in-fact, in serving in such capacity at the request of the undersigned, is not assuming, nor is any Company assuming, any of the undersigned's responsibilities to comply with Section 16 of the Securities Exchange Act of 1934.

This Limited Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4, and 5 with respect to any Company, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorney-in-fact.  This Limited Power of Attorney may be filed with the SEC as a confirming statement of the authority granted herein.

[Signature Page Follows]

IN WITNESS WHEREOF, the undersigned has caused this Limited Power of Attorney to be executed as of this 21st day of August, 2009.

/s/ Douglas Leone
______________________
Name:  Douglas Leone

</PRE>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
