TSMC 3nm Kumamoto Plant Approved, Boosting US-Japan Alliance

Taiwan Semiconductor Manufacturing Co.'s (TSMC) plan to invest in building a 3-nanometer advanced chip manufacturing fab at its second plant in Kumamoto Prefecture was approved on the 16th by Japan's Ministry of Economy, Trade and Industry, qualifying it for government subsidies. This marks the first time a chipmaker will deploy an advanced 3nm process within Japan, signaling a further elevation of the country's importance in the global semiconductor supply chain. Compared to the current 5nm process, 3nm technology features smaller transistor dimensions, lower power consumption, and higher performance, holding critical significance for applications such as high-performance computing, artificial intelligence, and 5G telecommunications.

TSMC's move represents not only a technological upgrade but also a deep investment in Japan's domestic industry. As a major industrial base in central Japan, Kumamoto Prefecture boasts mature supply chains and skilled talent resources. TSMC will establish an advanced manufacturing base there and collaborate with domestic Japanese suppliers to drive the upgrading of related sectors, including wafer manufacturing, photomasks, and chemicals. The plant is expected to enter production around 2028, creating thousands of local jobs while fostering the diversification of the regional economy.

From an international political and economic perspective, this investment aligns with the U.S.-Japan alliance's strategy to counter the rise