pho·​to·​re·​sist ˈfō-tō-ri-ˌzist How to pronounce photoresist (audio)
: 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

Recent Examples on the Web 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,, 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 First, a film of photosensitive material, or photoresist, is applied onto a silicon wafer. Discover Magazine, 29 June 2010 In January-May, 94% of South Korea’s imports of fluorinated polyimide and 92% of its imports of photoresist were from Japan, according to a report by Moody’s Investors Service, which cited trade data from South Korea. Washington Post, 8 July 2019 South Korea is concerned that the strengthened Japanese export controls of photoresists and other sensitive materials that are mainly used for manufacturing semiconductors and display screens could potentially hurt its export-dependent economy. Washington Post, 15 July 2019

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'photoresist.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1953, in the meaning defined above

Time Traveler
The first known use of photoresist was in 1953

Dictionary Entries Near photoresist

Cite this Entry

“Photoresist.” Dictionary, Merriam-Webster, Accessed 19 Apr. 2024.

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