PUBLISHER: Mellalta Meets LLP | PRODUCT CODE: 2117153
PUBLISHER: Mellalta Meets LLP | PRODUCT CODE: 2117153
EUV lithography is the chokepoint of leading-edge chipmaking, and the photoresist that EUV light exposes is one of its least visible dependencies. Japanese companies dominate the category: JSR, TOK, Shin-Etsu, and Fujifilm between them supply the great majority of EUV resists used at the world's advanced fabs. But the category is entering a transition that could reshuffle it. The shift to High-NA EUV scanners changes the resist requirement - thinner films, stochastic defect control at tighter tolerances, and new exposure doses - and it has opened the door to alternative chemistries. Metal-oxide resists, championed by Inpria in Corvallis and now inside JSR following its 2021 acquisition, are the most credible challenger to the chemically amplified platform the incumbents built. Lam Research's dry-resist program with ASML and imec, cross-licensed with JSR/Inpria in 2024-2025, adds a deposition-based alternative that would bypass spin-on chemistry entirely.
At the same time the ownership map has shifted. JSR was taken private by the state-backed JIC fund in 2024, putting one of the crown jewels of Japan's materials base under strategic ownership. Shin-Etsu expanded ArF capacity at Naoetsu in 2024 and is adding resist production in Gunma; Fujifilm is investing in EUV mass production at Shizuoka; Sumitomo Chemical is expanding at Osaka. Korea's Dongjin Semichem began supplying Samsung's leading-edge lines in 2025, and Chinese developers backed by state and Huawei-linked capital are working the category from below.
This report maps EUV photoresist supplier positions and the High-NA transition. It explains the chemistry and defectivity problem, profiles each supplier's platform, capacity, and customer qualifications, and tracks the alternative-chemistry programs - metal-oxide, dry resist, molecular resists, and Multi-Trigger - that could change the supplier set. Ownership and policy chapters cover the JIC take-private and its strategic logic. China chapters assess the realistic capability trajectory of Nata, Kempur, and Xuzhou B&C. The report answers which platforms are qualified where, what High-NA changes, how credible each challenger is, and how the ownership reshuffling affects customers.
The audience is foundry and IDM procurement and technology teams, materials investors, policy analysts tracking strategic-technology ownership, and equipment-ecosystem companies. Annual updates track qualifications, capacity, and chemistry transitions.
Scope and Coverage: The report covers EUV and High-NA photoresist suppliers, chemistries, capacity programs, customer qualifications, and ownership structures, centered on the Japanese incumbents with Korean, American, European, and Chinese challengers in scope. It addresses supply structure and technology position, not market sizing.
Report Highlights: