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Semiconductors Supply Chain

EUV Mask Blanks

Fab Materials

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Semiconductors›Fab Materials

EUV Mask Blanks

Ultra-flat low-thermal-expansion substrates with multilayer reflective coatings, the blank a photomask is written on. Hoya + AGC (both JP) ~93% duopoly — a single-country chokepoint, which is why this branch expands one level past photomasks (Jul 16 decision Q5).

Suppliers
2
CLEAR
2
CAUTION
0
FLAGGED
0
BLOCKED
0

Process flow

Upstream inputs

None: first stage.

Downstream outputs
Photomasks

Suppliers at this stage

AGC Inc. (Asahi Glass)
Tokyo · JP · Solar Glass| EUV mask blanks (integrated glass-to-coating)
CLEAR
Hoya Corporation
Tokyo · JP · Photomask blanks incl. EUV mask blanks
CLEAR

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