plural photomasks
: 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

Examples of photomask in a Sentence

Recent Examples on the Web
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The immediate challenge is that High-NA EUV will initially continue using today’s 6-inch photomasks. — Neetika Walter, Interesting Engineering, 8 Sep. 2026 These high-end products require more photomasks per design and generate higher average selling prices per mask set. — David Trainer, Forbes.com, 26 Aug. 2025 The filing details various risks, including dependency on a limited number of large customers, competition in the photomask industry, and potential impacts from international trade policies. — Quartz Bot, Quartz, 19 Dec. 2024 Based in Brookfield, Connecticut, the company makes photomasks — quartz plate containing microscopic images of electronic circuits, used in manufacturing semiconductor chips. — John Dorfman, Forbes, 25 Nov. 2024 See All Example Sentences for photomask

Word History

Etymology

photo- + mask entry 1

First Known Use

1963, in the meaning defined above

Time Traveler
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 30 Sep. 2026.

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