Japan's Semiconductor Industry
Semirai explains Japan's semiconductor industry for readers outside Japan: the equipment makers, materials suppliers and chipmakers, what they make, and where in Japan they operate.
Equipment
Japanese makers of front-end and back-end semiconductor equipment. Several of them hold leading global positions in a single process step, such as coat/develop, wafer cleaning, dicing or EUV mask inspection.
- Tokyo Electron (TEL)Coat/develop, etch and deposition equipment
- SCREEN HoldingsWafer cleaning, coat/develop and inspection equipment
- AdvantestAutomated test equipment (ATE) for SoC and memory
- DISCODicing, grinding and polishing equipment
- LasertecEUV mask and mask blank inspection
- Kokusai ElectricBatch deposition, diffusion and ALD equipment
- EbaraCMP systems, dry vacuum pumps and exhaust treatment
- Tokyo Seimitsu (ACCRETECH)Wafer probers, dicing and grinding machines, metrology
Materials
Silicon wafers, photoresists, CMP slurries and packaging materials. Japanese companies supply a large part of the world's semiconductor materials, which makes this the most Japan-specific layer of the supply chain.
- Shin-Etsu ChemicalSilicon wafers, photoresists and photomask blanks
- SUMCOSilicon wafers
- JSRPhotoresists and semiconductor materials
- Tokyo Ohka Kogyo (TOK)Photoresists and high-purity process chemicals
- ResonacCMP slurries, packaging materials and SiC epitaxial wafers
Chipmakers
Japanese companies that manufacture chips in their own fabs: a NAND flash maker and a new leading-edge logic foundry.
Sites by region
Japan's chip industry is not concentrated in one place. Kyushu hosts TSMC's JASM fab and many wafer and materials plants, Tohoku and Mie host NAND flash production, and Hokkaido is the home of Rapidus's new leading-edge fab. The list below shows the plants and sites of the companies covered here.
Hokkaido & Tohoku
- Tokyo Electron (TEL): Tohoku site (Oshu, Iwate)
- Shin-Etsu Chemical: Shirakawa plant (Shirakawa, Fukushima)
- SUMCO: Yonezawa plant (Yonezawa, Yamagata)
- SUMCO: Chitose plant (Chitose, Hokkaido)
- Kioxia: Kitakami plant (Kitakami, Iwate)
- Rapidus: IIM-1 (Chitose, Hokkaido)
Kanto (Tokyo area)
- Advantest: Gunma factory (Oura, Gunma)
- Ebara: Fujisawa site (Fujisawa, Kanagawa)
- Tokyo Seimitsu (ACCRETECH): Tsuchiura plant (Tsuchiura, Ibaraki)
- Shin-Etsu Chemical: Isobe plant (Annaka, Gunma)
- Shin-Etsu Chemical: Kashima plant (Kamisu, Ibaraki)
- JSR: Chiba plant (Ichihara, Chiba)
- JSR: Tsukuba research (Tsukuba, Ibaraki)
- Tokyo Ohka Kogyo (TOK): Sagami and Shonan operations (Samukawa, Kanagawa)
- Resonac: Yamazaki site (Hitachi, Ibaraki)
- Resonac: Shimodate site (Chikusei, Ibaraki)
- Resonac: Goi site (Ichihara, Chiba)
Hokuriku & Koshinetsu
- Tokyo Electron (TEL): Hosaka site (Nirasaki, Yamanashi)
- Kokusai Electric: Toyama production base (Toyama)
- Shin-Etsu Chemical: Takefu plant (Echizen, Fukui)
- Shin-Etsu Chemical: Naoetsu plant (Joetsu, Niigata)
Kinki (Kansai)
- SCREEN Holdings: Hikone site (Hikone, Shiga)
- SCREEN Holdings: Yasu plant (Yasu, Shiga)
- SCREEN Holdings: Taga site (Taga, Shiga)
Kyushu
- Tokyo Electron (TEL): Koshi site (Koshi, Kumamoto)
- Ebara: Kumamoto plant (Kumamoto)
- SUMCO: Imari plants (Imari, Saga)
- SUMCO: Saga plant (Kohoku, Saga)
- SUMCO: Nagasaki plant (Omura, Nagasaki)
- Tokyo Ohka Kogyo (TOK): Aso plant (Aso, Kumamoto)
Last updated: October 15, 2026