Method of exposing thermoresist

Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making electrical device

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430330, 430394, 430397, 430945, G03F 726

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active

061365092

ABSTRACT:
Low contrast optics, including low contrast linear light valves, can be used to create high resolution patterns by using thermoresist instead of photoresist and by using multiple exposures of the same area, preferably exposing different features of the pattern in each exposure. When using thermoresist, the stray light from imaging the individual features does not add up, as the stray heat it creates will dissipate between exposures. The method is particularly useful for imaging thermoresists using UV light for manufacturing of integrated circuits.

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