Tokyo Ohka Kogyo (TOK)
Photoresist pioneer strong in EUV chemistry
Tokyo Ohka Kogyo (TOK) is one of the original photoresist inventors and a top global supplier of advanced resists, including EUV materials. It operates joint development and manufacturing close to leading foundries and is a core node in Japan's resist oligopoly. TOK's leading-edge resist supply is a dependency for advanced logic production worldwide.
Products
EUV/ArF photoresists, developers
Position
Top-tier global resist share
Customers
TSMC, Samsung, Intel
How it fits the stack
Tokyo Ohka Kogyo (TOK) with what it depends on (above) and what it feeds (below). The figure renders as a crawlable diagram and upgrades to an interactive 3D graph as it scrolls into view.
Tokyo Ohka Kogyo (TOK) in the AI stack. Tokyo Ohka Kogyo (TOK) with its immediate upstream dependencies (top) and downstream dependents (bottom) in the AI value chain. Hover a node in 3D, or read the full relationships below.
Graph data (text) — 2 entities, 1 relationships
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