Noun
English Wikipedia has an article on:photomaskWikipedia
photomask (plural photomasks)
A transparent quartz block marked with many high-resolution images; a series of them are used in the photolithography of integrated circuits, one for each layer
A proximity printer puts a small gap between the photomask and wafer. Source: Internet
It uses light to transfer a geometric pattern from a photomask to a light-sensitive chemical " photoresist ", or simply "resist," on the substrate. Source: Internet
Photolithography generally uses a pre-fabricated photomask or reticle as a master from which the final pattern is derived. Source: Internet
Contact and proximity main A contact printer, the simplest exposure system, puts a photomask in direct contact with the wafer and exposes it to a uniform light. Source: Internet
The photomask blocks light in some areas and lets it pass in others. Source: Internet