<p>Taiwanese chipmaker TSMC is planning to produce chips with advanced 3-nanometre technology at its new factory in the US state of Arizona but the plans are not completely finalised yet, the company's founder Morris Chang said on Monday.</p>.<p>Taiwan Semiconductor Manufacturing Co Ltd (TSMC) , a major Apple Inc supplier and the world's largest contract chipmaker, is constructing a $12 billion plant in Arizona.</p>.<p>Last year, Reuters reported TSMC's plans to build more chipmaking factories in Arizona, including discussions about whether its next plant should be more advanced which could make chips with 3-nanometer technology compared to the slower, less-efficient 5-nanometer chips that will be churned out when the facility begins production.</p>.<p>Chang, speaking to reporters in Taipei after returning from the APEC summit in Thailand, said the 3-nanometre plant would be located at the same Arizona site as the 5-nanometre plant.</p>.<p>"Three-nanometre, TSMC right now has a plan, but it has not been completely finalised," said Chang, who has retired from TSMC but remains influential in the company and the broader chip industry.</p>.<p>"It has almost been finalised - in the same Arizona site, phase two. Five-nanometre is phase one, 3-nanometre is phase two."</p>.<p>TSMC, Asia's most valuable listed company, declined to comment.</p>.<p>The company is holding a "tool-in" ceremony in Arizona on Dec. 6.</p>.<p>Chang said he would be attending, along with TSMC customers and suppliers and US Commerce Secretary Gina Raimondo.</p>.<p>Chang added that US President Joe Biden has also been invited, but that he didn't know if he would be going.</p>
<p>Taiwanese chipmaker TSMC is planning to produce chips with advanced 3-nanometre technology at its new factory in the US state of Arizona but the plans are not completely finalised yet, the company's founder Morris Chang said on Monday.</p>.<p>Taiwan Semiconductor Manufacturing Co Ltd (TSMC) , a major Apple Inc supplier and the world's largest contract chipmaker, is constructing a $12 billion plant in Arizona.</p>.<p>Last year, Reuters reported TSMC's plans to build more chipmaking factories in Arizona, including discussions about whether its next plant should be more advanced which could make chips with 3-nanometer technology compared to the slower, less-efficient 5-nanometer chips that will be churned out when the facility begins production.</p>.<p>Chang, speaking to reporters in Taipei after returning from the APEC summit in Thailand, said the 3-nanometre plant would be located at the same Arizona site as the 5-nanometre plant.</p>.<p>"Three-nanometre, TSMC right now has a plan, but it has not been completely finalised," said Chang, who has retired from TSMC but remains influential in the company and the broader chip industry.</p>.<p>"It has almost been finalised - in the same Arizona site, phase two. Five-nanometre is phase one, 3-nanometre is phase two."</p>.<p>TSMC, Asia's most valuable listed company, declined to comment.</p>.<p>The company is holding a "tool-in" ceremony in Arizona on Dec. 6.</p>.<p>Chang said he would be attending, along with TSMC customers and suppliers and US Commerce Secretary Gina Raimondo.</p>.<p>Chang added that US President Joe Biden has also been invited, but that he didn't know if he would be going.</p>