Tower launches $4B Japan expansion
Tower Semiconductor is investing in new silicon photonics manufacturing and advanced packaging capabilities in Japan to meet growing demand from AI and data center applications.
Tower Semiconductor has launched a dual-track expansion in Japan, committing $4 billion to significantly increase its 300 mm silicon photonics, silicon germanium, and advanced packaging capabilities.
Supported by $1 billion in grants from the Government of Japan, the investment will expand manufacturing capacity to address rising long-term demand for AI infrastructure and next-generation optical connectivity.
The first phase will repurpose the company's Arai facility to add new 300 mm silicon photonics production and advanced packaging capabilities, with full production readiness targeted for the fourth quarter of 2027.
This expansion is intended to maximize output from Tower's existing 300 mm Fab 7 in Uozu.
Running in parallel, Tower plans to construct a new 300 mm manufacturing facility adjacent to Fab 7, subject to the completion of related agreements.
The new facility is expected to provide a substantial increase in silicon photonics and silicon germanium capacity to support emerging AI and data center applications.
According to the company, the investment will strengthen domestic manufacturing capabilities in silicon photonics and advanced packaging while enhancing Japan's semiconductor supply chain resilience.
"By combining Tower's specialized technology leadership with Japan's manufacturing expertise, world-class research institutions, and committed workforce, we are building a strategic platform that will drive innovation, economic growth, and semiconductor leadership for decades to come," said Russell Ellwanger, CEO of Tower Semiconductor.
The expansion underscores growing industry demand for integrated photonics and advanced packaging technologies as AI workloads continue to drive the need for higher-performance optical interconnects and heterogeneous semiconductor integration.
