Taiwan Semiconductor Manufacturing Company's (TSMC) target of 20% growth in 2011 sales remains unchanged, chairman and CEO Morris Chang said on March 16. TSMC expects no material impact from the recent earthquake in Japan on its 2011 sales.

TSMC is unlikely to face possible wafer supply disruptions, because the company has more than four suppliers, Chang indicated.

However, Chang pointed out, the company is unsure whether the event will affect its expansion plans for 2012. Deliveries from its equipment suppliers in Japan may be disrupted by stoppages in their production and the damage to Japan's infrastructure.

TSMC purchases chip-making equipment from Japan-based suppliers including Dainippon Screen, Ebara, Hitachi High-Technologies, Muratec Automation and Tokyo Electron.

TSMC previously announced its capex for 2011 will hike to a record US$7.8 billion.