TSMC plans 3nm chip production in Japan by 2028

Summary

TSMC is preparing to introduce advanced 3-nanometre chip production at its second fabrication plant in Japan by 2028.
The move marks a shift toward higher-end semiconductor manufacturing in the country and reflects evolving global supply chain strategies.

TAIPEI / TOKYO, April 1, 2026 — Taiwan Semiconductor Manufacturing Company (TSMC) plans to begin mass production of advanced 3-nanometre (3nm) chips at its second fabrication facility in Japan by 2028, according to a recent government filing. The development signals a significant step toward expanding advanced semiconductor manufacturing capacity in the country.

The company expects to install production equipment ahead of the launch, aligning with its broader strategy to strengthen its international manufacturing footprint. The second plant builds on TSMC’s existing presence in Japan, where its first facility has been focused on more mature process technologies.

The roadmap for advanced chip production was discussed earlier this year during a meeting between TSMC Chief Executive C. C. Wei and Japan’s Prime Minister Sanae Takaichi. The discussions highlighted Japan’s role in supporting next-generation semiconductor capabilities.

TSMC’s Japan operations are managed through Japan Advanced Semiconductor Manufacturing (JASM), a joint venture established in 2021. The initiative includes participation from Sony Semiconductor Solutions, DENSO, and Toyota Motor Corporation, reflecting strong industrial backing within Japan.

While the company has not disclosed detailed financial figures for the second facility, earlier statements indicated that total investment across its Japan projects would exceed $20 billion. Separate media reports have suggested the second plant could require investment in the tens of billions of dollars, though these figures remain unconfirmed.

The planned introduction of 3nm technology represents a shift from the company’s initial Japan strategy, which centered on legacy and mid-range nodes. Advanced nodes such as 3nm are widely used in high-performance computing, artificial intelligence, and premium consumer devices, where efficiency and processing power are critical.

Why this matters

• Advanced manufacturing expansion: Japan moves closer to hosting cutting-edge semiconductor production capabilities
• Supply chain resilience: Local production may reduce reliance on overseas chip imports
• Automotive sector support: Partnerships with Toyota and DENSO strengthen access to advanced chips for next-generation vehicles
• Global strategy shift: TSMC continues diversifying production beyond Taiwan amid geopolitical and supply chain considerations
• AI and computing demand: 3nm chips are key to supporting growth in AI and high-performance computing markets

FAQs

Q1: What is 3nm semiconductor technology?

It refers to an advanced chip manufacturing process that enables higher transistor density, improving performance and energy efficiency.

Q2: When will production begin in Japan?

Mass production at the second facility is expected to start in 2028.

Q3: Who are TSMC’s partners in Japan?

Key partners include Sony Semiconductor Solutions, DENSO, and Toyota Motor Corporation through the JASM venture.

Q4: What does this mean for Japan’s semiconductor industry?

It strengthens Japan’s role in advanced chip manufacturing and supports domestic industries such as automotive and electronics.

Q5: Has TSMC confirmed the investment amount for the second plant?

No specific figure has been confirmed, though total investment across its Japan projects is expected to exceed $20 billion.