TAIPEI, Nov 21 (Reuters) - Taiwanese chipmaker TSMC is planning to produce chips with advanced 3-nanometre technology at its new factory in the U.S. state of Arizona but the plans are not completely finalised yet, the company's founder Morris Chang said on Monday.Taiwan Semiconductor Manufacturing Co Ltd (TSMC) (2330.TW), , a major Apple Inc (AAPL.O) supplier and the world's largest contract chipmaker, is constructing a $12 billion plant in Arizona.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.Chang added that U.S. President Joe Biden has also been invited, but that he didn't know if he would be going.Both the United States and Europe are putting up billions in incentives to get companies to make chips closer to home, courting in particular Taiwanese firms."