Mask writing (e-beam writers)
CHOKEPOINTIMS Nanofabrication alone ships production EUV multi-beam mask writers, and no second source matches the nanometer-precision throughput required.
Electron-beam systems that write chip patterns onto mask blanks with nanometer precision. Multi-beam writers cut write time from days to hours for complex EUV masks; single-beam tools serve older nodes and prototype chips. IMS Nanofabrication holds near-monopoly on production EUV multi-beam systems.
What the evidence shows
NuFlare and IMS combined installed base represents over 60% of advanced mask writing capacity.
dataintelo.comThe electron-beam mask writer market is moderately concentrated with key players Nuflare, IMS, and JEOL.
datainsightsmarket.comWho controls it
Where it sits in the stack
Takes in: Mask blank, e-beam resist, GDSII/fracture data
Sends on: E-beam-written mask blank ready for inspection
Full scorecard, owner shares, supply edges and the full tracked roster are in the desk letter.
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