1934 Act Registration No. 1-14700

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16 OF
THE SECURITIES EXCHANGE ACT OF 1934

For the month of April 2011

Taiwan Semiconductor Manufacturing Company Ltd.

(Translation of Registrant’s Name Into English)

No. 8, Li-Hsin Rd. 6,
Hsinchu Science Park,
Taiwan
(Address of Principal Executive Offices)

     (Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.)

Form 20-F þ     Form 40-F o

     (Indicate by check mark whether the registrant by furnishing the information contained in this form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.)

Yes o     No þ

     (If “Yes” is marked, indicated below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82:                     .)

TSMC Files Form 20-F for 2010 with US Securities and Exchange Commission

Hsinchu, Taiwan, R.O.C. — April 15, 2011 — TSMC (TWSE: 2330, NYSE: TSM) today filed its 2010 annual report on Form 20-F with the US Securities and Exchange Commission. The report is available at http://www.tsmc.com/english/e_investor/e02_annual/e02_annual.htm.

Shareholders may request a hard copy of the complete audited financial statements free of charge. Please forward your request via http://citibank.ar.wilink.com.

TSMC Spokesperson:	TSMC Acting Spokesperson:	For Further Information:
Lora Ho Senior VP & CFO Tel: 886-3-505-4602	Elizabeth Sun Director Corporate Communication Division Tel: 886-3-568-2085 Mobile: 886-988-937999 E-Mail: elizabeth_sun@tsmc.com	Michael Kramer Principal Specialist PR Department Tel: 886-3-563-6688 Ext. 7126216 Mobile: 886-988-931352 E-Mail: pdkramer@tsmc.com	Ophelia Chang Specialist PR Department Tel: 886-3-563-6688 Ext. 7125786 Mobile: 886-988-930039 E-Mail: lwchangj@tsmc.com

SIGNATURES

     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.

	Taiwan Semiconductor Manufacturing Company Ltd.
Date: April 15, 2011	By	/s/ Lora Ho
		Lora Ho
		Senior Vice President & Chief Financial Officer