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Form 20-F [x]      Form 40-F [ ]

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): [  ]

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): [  ]

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Alpha and Omega Semiconductor Limited is furnishing under this cover of Form 6-K: Press release dated March 8, 2011 introduces first generation Alpha-MOS(TM) technology platform.

Exhibit		Description
Exhibit 99.1		Press Release dated March 8, 2011 entitled "Alpha and Omega Semiconductor Introduces First Generation Alpha-MOS(TM) Technology Platform".

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	Alpha and Omega Semiconductor Limited
Date: March 8, 2011	By:	/s/ EPHRAIM KWOK
	Name:	Ephraim Kwok
	Title:	Chief Financial Officer