Overview
TPSCo's Arai facility (Fab 6) ceased production in July 2022, when it stopped exclusively serving Nuvoton Technology Corporation Japan (NTCJ). In July 2026, Tower Semiconductor announced a dual-track, up to $3 billion (net of grants) expansion of its Japan silicon photonics and SiGe capacity, backed by roughly $1 billion in METI grants; Track One converts Arai into a 300mm silicon photonics and advanced optical packaging plant, targeting full production readiness in Q4 2027. Key facility details include: The facility is situated at Arai, Niigata, Japan. It focuses on Photonics / Optical and 350, 150 process nodes on 300mm wafers. Production at this facility is expected to begin in 2027.
Tower Partners Semiconductor Co. (TPSCo)
* This is a sum of all 3 facility phases (current & planned).