What process uses light to project and print intricate circuit patterns onto silicon wafers during manufacturing?
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Photolithography is the key technique used to transfer microscopic circuit designs onto silicon. It works similarly to old-school film photography, using ultraviolet light to expose a light-sensitive chemical coating on the wafer, which is then etched away to form the transistors. Photo: Rob Bulmahn, Wikimedia Commons, CC BY 2.0.
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Source: Wikipedia (CC BY-SA)
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