Patent ID: 7081326

Claim:
A negative photoresist composition, comprising: (a) a radiation sensitive acid generator; (b) a multihydroxy-containing additive having the structure: Q-(OH) m , (1) wherein Q is one of an aliphatic group with 2 to 60 carbons, an aromatic group with 6 to 60 carbons, a semi- or perfluorinated aliphatic group with 2 to 60 carbons, a semi- or perfluorinated aromatic group with 6 to 60 carbons; and wherein m is an integer from 2 to 6; and (c) a resist polymer comprising a first repeating unit from a first monomer, wherein the first monomer has the structure; wherein M is a polymerizable backbone moiety, wherein Z is a linking moiety comprising one of —C(O)O—, —C(O)—, —OC(O)—, —O—C(O)—C(O)—O—, wherein Y is one of an alkylene group, an arylene, a semi- or perfluorinated alkylene group, and a semi- or perfluorinated arylene group, wherein p and q are independently 0 or 1, wherein R 1 , and R 2 independently comprise one of hydrogen and a straight or branched alkyl group with 1 to 6 carbons, wherein the resist polymer is soluble in an aqueous alkaline developer solution, wherein the acid generator is adapted to generate an acid upon exposure to imaging radiation characterized by a wavelength, wherein the resist polymer is adapted to chemically react with the additive in the presence of the acid to generate a product that is insoluble in the developer solution, wherein the resist polymer further comprises a second repeating unit from a second monomer, wherein the second monomer has an aqueous base soluble moiety, and wherein the second monomer comprises one of a fluorosulfonamide and a fluoroalcohol.