pho·​to·​re·​sist | \ ˈfō-tō-ri-ˌzist How to pronounce photoresist (audio) , ˌfō-tō-ri-ˈzist \

Definition of photoresist

: 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 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, "SKorea’s Moon calls for diplomatic solution to trade spat," 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, "S. Korean business owners call for boycott of Japanese goods," 15 July 2019 The materials — fluorinated polyamides, photoresists and hydrogen fluoride — are used to make computer chips, among other things. Sherisse Pham, CNN, "Japan just made its trade dispute with South Korea a lot more serious," 2 Aug. 2019 The two other Japanese export items—fluorinated polyimide, a chemical used to make smartphone displays, and photoresist, a light-sensitive material used in chip production—have applications in military aircraft. Mayumi Negishi And Alastair Gale, WSJ, "North Korea’s Weapons Program Fuels Tokyo’s Trade Spat With Seoul," 10 July 2019 Tokyo last week tightened the approval process for shipments of photoresists and other sensitive materials to South Korea, saying they can be exported only to trustworthy trading partners. Washington Post, "S. Korea, Japan fail to resolve growing trade dispute," 13 July 2019 The Japanese government ordered the more stringent approval process for shipments of photoresists and other key chemicals as relations with its neighbor and fellow U.S. ally deteriorated due to issues related to forced labor during World War II. Washington Post, "Japan export curbs take effect as SKorean officials protest," 5 July 2019 Research is also needed to improve the photoresists, to understand their behavior when exposed to EUV and reduce the number of defects. Peter Bright, Ars Technica, "Extreme UV chip defects may force a new approach to processor design," 27 Feb. 2018 The wafer is coated with a light-sensitive material called photoresist. Peter Bright, Ars Technica, "Extreme UV chip defects may force a new approach to processor design," 27 Feb. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'photoresist.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of photoresist

1953, in the meaning defined above

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The first known use of photoresist was in 1953

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Cite this Entry

“Photoresist.” Dictionary, Merriam-Webster, Accessed 6 Jul. 2020.

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