TSMC 3nm Semiconductor Manufacturing in Japan Strengthens AI and Chip Supply Chain

On February 5, Taiwan Semiconductor Manufacturing Co., Ltd. (TSMC), the world’s largest contract chipmaker, announced plans to produce advanced semiconductors using a 3-nanometer-class circuit line width at its second Kumamoto facility in Kikuyo Town, Kumamoto Prefecture. The plant is currently under construction and represents a major step in Japan’s semiconductor revival.
This development will mark the first time 3-nanometer chips are manufactured in Japan. These highly advanced semiconductors are expected to play a critical role in high-performance data processing, particularly for artificial intelligence applications, where efficiency and processing power are essential.

TSMC 3nm semiconductor manufacturing Japan at Kumamoto

The second Kumamoto plant is designed to support next-generation semiconductor technologies. By introducing 3-nanometer production locally, TSMC is positioning Japan as a key hub in the global advanced semiconductor supply chain while reducing reliance on overseas manufacturing for cutting-edge chips.

Support from the Japanese government

The Japanese government is considering additional support measures for this initiative. Stable domestic access to advanced semiconductors is seen as a strategic priority, especially as demand rises across AI, data centers, and advanced electronics manufacturing.

Strategic importance for AI and economic security

During a meeting at the Prime Minister’s Official Residence, TSMC Chairman and CEO Che-Chia Wei informed Japanese Prime Minister Sanae Takaichi about the plan. Mr. Wei underlined its significance by stating, “The 3-nanometer technology will form the foundation of Japan's AI business." Prime Minister Takaichi welcomed the proposal, responding, “I would like the project to move forward as proposed,” noting that ensuring a stable semiconductor supply within Japan would directly contribute to strengthening the nation’s economic security and industrial resilience in an increasingly competitive global technology landscape."