photomask
noun
pho·to·mask
ˈfō-tō-ˌmask 
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
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
From there the light continues its journey until it is projected onto the wafer [bottom center], carrying the photomask’s pattern.
—IEEE Spectrum, 29 July 2023
To print the patterns at nano-meter levels, semiconductor makers have to rely on what’s called computational lithography—or specialized computer models—to optimize the photomask and prevent defects during the manufacturing process.
—Michael Kan, PCMAG, 21 Mar. 2023
According to Zhao, to fabricate one photomask would cost about €3000 (3500 USD).
—IEEE Spectrum, 23 Jan. 2023
To imprint microchannel networks on each of AKVO’s CDs, a microchannel photomask is needed.
—IEEE Spectrum, 23 Jan. 2023
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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
From there the light continues its journey until it is projected onto the wafer [bottom center], carrying the photomask’s pattern.
—IEEE Spectrum, 29 July 2023
To print the patterns at nano-meter levels, semiconductor makers have to rely on what’s called computational lithography—or specialized computer models—to optimize the photomask and prevent defects during the manufacturing process.
—Michael Kan, PCMAG, 21 Mar. 2023
According to Zhao, to fabricate one photomask would cost about €3000 (3500 USD).
—IEEE Spectrum, 23 Jan. 2023
To imprint microchannel networks on each of AKVO’s CDs, a microchannel photomask is needed.
—IEEE Spectrum, 23 Jan. 2023
Cite this Entry
“Photomask.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/photomask. Accessed 21 Jul. 2025.
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