photoresist
noun
pho·to·re·sist
ˈfō-tō-ri-ˌzist 
ˌfō-tō-ri-ˈzist
: a photosensitive resin that loses its resistance to chemical etching when exposed to radiation and is used especially in the transference of a circuit pattern to a semiconductor chip during the production of an integrated circuit
Examples of photoresist in a Sentence
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The idea, which seemed impossible to many two decades ago, was to create large amounts of tiny rays of extreme ultraviolet light, projecting it through masks with increasingly small chip designs, onto wafers of silicon treated with photoresist chemicals.
—
Katie Tarasov, CNBC, 22 May 2025
The lithography process in chip manufacturing requires a specific, highly consistent EUV radiation dose to expose the photoresist, the light-sensitive material used to create circuit patterns on the wafer.
—Jayson Stewart, IEEE Spectrum, 5 Mar. 2025
The lithographic mask, through which light shone when exposing the photoresist, was the equivalent of a photographic negative.
—IEEE Spectrum, 27 Nov. 2024
This lab will allow customers, mask makers, photoresist suppliers, and others to develop the infrastructure needed to make high-NA EUV a reality.
—IEEE Spectrum, 29 July 2023
Founded in 1957, JSR is the world’s leading maker of photoresists and one of three Japanese companies, along with Shin-Etsu Chemical and Tokyo Ohka Kogyo, that control the global supply of fluorinated polyimide and hydrogen fluoride.
—Yuki Furukawa and Winnie Hsu, BostonGlobe.com, 26 June 2023
Japanese export controls had covered fluorinated polyimides, which are used in OLED screens for TVs and smartphones, and photoresist and hydrogen fluoride, used for making semiconductors.
—Mari Yamaguchi, ajc, 17 Mar. 2023
The darker patches are places where the photoresist has been exposed by a laser and will eventually lead to holes in the aluminum.
—Discover Magazine, 15 May 2013
Exposure to a pattern of intense light causes the photoresist to harden into a protective mask.
—Discover Magazine, 29 June 2010
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Katie Tarasov, CNBC, 22 May 2025
The lithography process in chip manufacturing requires a specific, highly consistent EUV radiation dose to expose the photoresist, the light-sensitive material used to create circuit patterns on the wafer.
—Jayson Stewart, IEEE Spectrum, 5 Mar. 2025
The lithographic mask, through which light shone when exposing the photoresist, was the equivalent of a photographic negative.
—IEEE Spectrum, 27 Nov. 2024
This lab will allow customers, mask makers, photoresist suppliers, and others to develop the infrastructure needed to make high-NA EUV a reality.
—IEEE Spectrum, 29 July 2023
Founded in 1957, JSR is the world’s leading maker of photoresists and one of three Japanese companies, along with Shin-Etsu Chemical and Tokyo Ohka Kogyo, that control the global supply of fluorinated polyimide and hydrogen fluoride.
—Yuki Furukawa and Winnie Hsu, BostonGlobe.com, 26 June 2023
Japanese export controls had covered fluorinated polyimides, which are used in OLED screens for TVs and smartphones, and photoresist and hydrogen fluoride, used for making semiconductors.
—Mari Yamaguchi, ajc, 17 Mar. 2023
The darker patches are places where the photoresist has been exposed by a laser and will eventually lead to holes in the aluminum.
—Discover Magazine, 15 May 2013
Exposure to a pattern of intense light causes the photoresist to harden into a protective mask.
—Discover Magazine, 29 June 2010
Cite this Entry
“Photoresist.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/photoresist. Accessed 19 Jul. 2025.
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