Patent ID: 7063931
Filing Date: 2006-06-20
Classification: G03F,Y10S

Abstract:
1. A positive photoresist composition comprising: a radiation sensitive acid generator; and a polymer, the polymer comprising: in which M comprises a polymerizable backbone moiety, Z comprises a linking moiety comprising one of —C(O)O—, —C(O)—, —OC(O), O—C(O)—C(O)—O—, R 1 represents one of an alkyl, an aryl, a semi- or perfluorinated alkyl, and a semi- or perfluorinated aryl, p and q are 0 or 1, R 2 represents one of hydrogen, fluorine, an alkyl group of 1 to 6 carbons, and a semi- or perfluorinated alkyl group of 1 to 6 carbons, n comprises an integer from 1 to 6, and R 3 represents one of hydrogen, an alkyl, an aryl, a semi- or perfluorinated alkyl, and a semi- or perfluorinated aryl; a second repeating unit including a pendant acid-labile moiety; and a third repeating unit derived from monomers comprising one of the following structures, wherein said polymer comprises about 15 mole % of said first repeating unit.