photomask

noun
pho·​to·​mask | \ ˈfō-tō-ˌmask How to pronounce photomask (audio) \
plural photomasks

Definition of photomask

: a pattern of opaque material used to shield selected areas of a surface (as of a semiconductor) in deposition or etching (as in producing an integrated circuit) : mask sense 3d

First Known Use of photomask

1963, in the meaning defined above

History and Etymology for photomask

photo- + mask entry 1

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The first known use of photomask was in 1963

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Cite this Entry

“Photomask.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/photomask. Accessed 17 May. 2021.

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