Patent ID: 8632945

Claim:
A radiation-sensitive resin composition comprising: a polymer; and a solvent, said polymer including a following repeating unit represented by a general formula (I), a following repeating unit represented by a general formula (II), or both thereof, wherein each of R 1 to R 3 independently represents a hydroxyl group, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkoxy group, —S—R 6 , or a group having two or more heteroatoms, wherein R 6 represents a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group, at least one R 1 represents the group having two or more heteroatoms, the group having two or more heteroatoms represented by the at least one R 1 includes a heteroatomic group represented by —OSO 2 —, —SO 2 —, —CONH—, or —SO 2 N(Ry)-, wherein Ry represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted aryl group, and the heteroatomic group is directly bonded to the benzene ring bonded to S + , l is an integer from 1 to 5, each of m and n is independently an integer from 0 to 5, each of R 7 and R 11 independently represents a hydrogen atom, a halogen atom, a cyano group, or a substituted or unsubstituted alkyl group, each of R 8 to R 10 independently represents a hydrogen atom, a hydroxyl group, a halogen atom, a nitro group, a carboxyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aralkyl group, or a substituted or unsubstituted alkoxy group, A represents —O— or —NR 12 —, wherein R 12 represents a hydrogen atom, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group, and D represents a substituted or unsubstituted methylene group, a substituted or unsubstituted alkylene group, or a substituted or unsubstituted arylene group.