Polymer, chemically amplified resist composition and patterning process
摘要:
A polymer comprising recurring units having a multiple bond-containing acid labile group, recurring units having a phenolic hydroxyl group, and recurring units adapted to generate an acid upon exposure is used to formulate a resist composition, which exhibits a high sensitivity, low LWR and improved CDU when processed by lithography using EUV of wavelength 13.5 nm.
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