Region
Tokai Semiconductor Region
Mie Prefecture hosts Kioxia's Yokkaichi plant, its main 3D NAND flash production site, operated with SanDisk, and United Semiconductor Japan, the Kuwana foundry of Taiwan's UMC.
- Fabs2
- Other company sites8
- Prefectures4
Overview
In Gifu, IBIDEN makes package substrates in Ogaki and at its Ono plant, which opened in October 2025 mainly for AI server products. JSR has a plant in Yokkaichi, and ULVAC produces semiconductor equipment in Susono, Shizuoka.
Fabs and company sites in Tokai, by prefecture
Mie
5
Gifu
3
Shizuoka
1
Aichi
1
Fabs
- Yokkaichi Plant Yokkaichi, MieKioxia (with SanDisk) · 3D NAND flash (BiCS FLASH)
- United Semiconductor Japan Kuwana, MieUMC Group · Foundry logic
The Japanese foundry subsidiary of Taiwan's UMC.
Equipment, materials and other company sites
- JSR: Yokkaichi plant (Yokkaichi, Mie)Photoresists and semiconductor materials
- Kioxia: Yokkaichi plant (Yokkaichi, Mie)NAND flash memory and SSDs
- ULVAC: Fuji Susono plant (Susono, Shizuoka)Vacuum deposition (sputtering) equipment and vacuum pumps
- IBIDEN: Gama plant (Ogaki, Gifu)IC package substrates (FC-BGA)
- IBIDEN: Ono plant (Ono, Gifu)IC package substrates (FC-BGA)
- CKD: Yokkaichi Plant (Yokkaichi, Mie)Process gas regulators and fluid control components
- Nippon Thompson (IKO): Toki Mechatronics Center (Toki, Gifu)Linear motion components and precision positioning tables
- Nitto Denko: Toyohashi site (Toyohashi, Aichi)Dicing tapes and functional films
Sources
Last updated: October 22, 2026