TSMC's $17B Japan Chip Plant Will Produce Cutting-Edge 3nm Semiconductors by 2028

Taiwan Semiconductor Manufacturing Company (TSMC) will build a cutting-edge chip plant in Japan. The facility, known as Fab 23, will produce advanced 3-nanometer chips by 2028. The Japanese government has officially confirmed the project, marking a major step in semiconductor collaboration between the two regions.

The plant represents a $17 billion investment and will operate under JASM, a joint venture involving TSMC, Sony, Denso, and Toyota.

The Kumamoto Fab-23 plant was originally planned to manufacture 6-nanometer chips. However, TSMC has now shifted its focus to the more advanced N3 process, which is currently the most sophisticated semiconductor technology available. This change aligns with strong market demand for high-performance chips.

TSMC will hold an 86.5% ownership stake in JASM, maintaining control over technology and operations. The remaining shares will be divided among Japanese partners: Sony with 6.0%, Denso with 5.5%, and Toyota with 2.0%. This structure reflects Japan's industrial policy goals while securing TSMC's leadership in chip production.

Construction and setup are underway, with production expected to start in 2028. The project highlights Japan's push for greater self-sufficiency in semiconductor manufacturing while leveraging TSMC's expertise.

The Fab 23 plant will strengthen Japan's role in the global semiconductor supply chain. With TSMC's majority stake and technical leadership, the facility aims to meet long-term demand for advanced chips. Production is set to begin in 2028, following a $17 billion investment.