Japan to Provide 159 Billion Yen in Subsidies to Tower Semiconductor for AI Optical Chip Production
Digests in this section are compiled by an automated pipeline; sources are listed at the end of each post. Posts are removed after 7 days.
Japan’s industry ministry announced that it will provide up to 159 billion yen in subsidies to the Japanese unit of Israel’s Tower Semiconductor Ltd. The support comes as part of Japan’s efforts to ensure a stable supply of semiconductors, which are designated as “specified critical products” under the economic security promotion law.
Tower Partners Semiconductor Co., based in Toyama Prefecture, central Japan, plans to invest a total of about 600 billion yen to mass-produce cutting-edge semiconductors for optical communications at factories in Uozu, Toyama, and Myoko, Niigata Prefecture.
These optical communication semiconductors are essential for photonics-electronics convergence technology, which uses optical signals to transmit and process information. They are particularly crucial for artificial intelligence data centers, which require high-speed, efficient data transmission for training and inference workloads.
Tower Semiconductor will collaborate with NTT Inc. and other partners on the project. NTT promotes the Innovative Optical and Wireless Network (IOWN), a next-generation communication infrastructure that leverages optical technology to achieve ultra-high capacity and ultra-low latency communication.
This investment highlights Japan’s strategic focus on semiconductor manufacturing amid global supply chain concerns. By subsidizing the production of optical communication chips, Japan aims to strengthen its position in the AI hardware supply chain while addressing critical infrastructure needs for data centers and other AI applications.
The move also reflects growing international recognition of optical photonics as a key technology for scaling AI systems, as traditional electronic interconnects face increasing limitations in bandwidth and power efficiency.