Patent ID: 8722306

Claim:
A radiation-sensitive resin composition comprising a resin (A2) that comprises a repeating unit shown by the following formula (1-1), a repeating unit shown by the following formula (1-2), and a repeating unit shown by the following formula (1-3), and a radiation-sensitive acid generator (B), wherein R represents a hydrogen atom, a methyl group, or a trifluoromethyl group, R 1 , R 2 , and R 3 individually represent linear or branched alkyl groups having 1 to 4 carbon atoms, R 4 represents a hydrogen atom, a linear or branched alkyl group having 1 to 4 carbon atoms, a linear or branched fluoroalkyl group having 1 to 4 carbon atoms, or a linear or branched alkoxy group having 1 to 4 carbon atoms, q represents an integer from 0 to 3, R 5 represents a linear or branched alkyl group having 1 to 4 carbon atoms, R 6 and R 7 individually represent a hydrogen atom or a linear or branched alkyl group having 1 to 4 carbon atoms, and m represents an integer from 3 to 7.