A reported US move to restrict China's access to an advanced semiconductor architecture and high-end memory chips for artificial intelligence (AI) applications could cut it off from access to leading wafer foundries such as Taiwan Semiconductor Manufacturing Co (TSMC) and Samsung Electronics, analysts said. The Biden administration is considering more restrictions on China's access to a cutting-edge chip architecture known as gate all-around, or GAA, and high bandwidth memory (HBM) AI memory chi