Patent ID: 7407734

Claim:
A resist composition for an electron beam or EUV, comprising a compound (A) having acid dissociable, dissolution inhibiting groups, an acid generator (B), and an organic solvent comprising one or more compounds selected from the group consisting of propylene glycol monomethyl ether (PGME), methyl amyl ketone (MAK), butyl acetate (BuOAc) and 3-methyl methoxy propionate (MMP), wherein the compound (A) comprises: a resin component (A-1), wherein the resin component (A-1) comprises a copolymer selected from the group consisting of: a copolymer comprising structural units (a1) and (a3); and a copolymer comprising structural units (a1) and (a2), wherein the structural unit (a1) is represented by a general formula (I) shown below within a range from 40 to 80 mol %: wherein R represents —H or —CH3; the structural unit (a2) is represented by a general formula (II) shown below: wherein, R represents —H or —CH 3 , and X represents an acid dissociable, dissolution inhibiting group; and the structural unit (a3) is represented by a general formula (III) shown below: wherein, R and R 1 each represent, independently, —H or —CR 3 , R 2 represents —CR 3 or —C 2 H 5 , and R 3 represents an alkyl group of 1 to 5 carbon atoms.