TSMC Notifies Japan of 3nm Semiconductor Mass Production Plan in Kumamoto

TSMC, the Taiwanese semiconductor giant, has informed the Japanese government of its plan to begin mass production of semiconductors using 3-nanometer technology in Kumamoto Prefecture, marking an unprecedented move in Japan.

During a meeting in Tokyo, the company’s CEO presented the initiative as an upgrade from its original plan to produce 6nm chips, signaling a significant technological advancement.

Japan Backs Strategic Chip Manufacturing

The Japanese government views domestic semiconductor production as a pillar of economic security and supply chain resilience.

Officials welcomed TSMC’s expansion plan and pledged close cooperation to ensure the project's success.

This move aligns with Japan’s broader strategy to strengthen its chip industry, including support for Rapidus Corp., which aims to mass-produce 2nm chips starting in the second half of 2027.

New Facility in Kumamoto

The 3nm semiconductors will be produced at TSMC’s second plant in Kumamoto, currently under construction.

The project is expected to elevate Japan’s role in the global semiconductor ecosystem.

TSMC’s expansion reflects intensifying global competition in advanced chip manufacturing, which underpins industries such as artificial intelligence, electric vehicles, and high-performance computing.