Attached files

file filename
10-Q - ALPHA & OMEGA SEMICONDUCTOR Ltdaosl0331201210q.htm
EX-31.1 - EX 31.1 CEO CERTIFICATION SECTION 302 - ALPHA & OMEGA SEMICONDUCTOR Ltdex311-aosl331201210q.htm
EX-31.2 - EX-31.2 CFO CERTIFICATION SECTION 302 - ALPHA & OMEGA SEMICONDUCTOR Ltdex312-aosl331201210q.htm
EX-32.1 - EX-32.1 CEO CERTIFICATION SECTION 906 - ALPHA & OMEGA SEMICONDUCTOR Ltdex321-aosl331201210q.htm
EXCEL - IDEA: XBRL DOCUMENT - ALPHA & OMEGA SEMICONDUCTOR LtdFinancial_Report.xls


Exhibit 32.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER
PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Mary L. Dotz, chief financial officer of Alpha and Omega Semiconductor Limited (the "Company"), certify for the purposes of 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge,

a.
the Quarterly Report of the Company on Form 10-Q for the fiscal quarter ended March 31, 2012 (the "Report"), fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

b.
the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: May 8, 2012
                                 
/s/    Mary L. Dotz       
Mary L. Dotz
Chief Financial Officer