Patent ID: 8889336

Claim:
A radiation-sensitive resin composition comprising: a compound represented by a formula (1); and a base polymer: wherein, in the formula (1), A represents —CO —or —CH 2 —; R 1 represents a group represented by a formula (a1); and M + represents a monovalent cation, wherein, in the formula (a1), R 2 represents a heterocyclic group having 3 to 30 ring atoms or a cyclic ketone group having 3 to 30 ring atoms; R 3 and R 5 each independently represent —CO—, —COO—, —OCO—,—NHCO—,—CONH or a combination thereof; R 4 represents a hydrocarbon group having 1 to 30 carbon atoms; m is an integer of 1 or 2; n is 1, wherein a part or all of hydrogen atoms included in the heterocyclic group and the cyclic ketone group represented by R 2 , and the hydrocarbon group represented by R 4 may be unsubstituted or substituted, and wherein in a case where m is 2, a plurality of R 3 s are each identical or different and a plurality of R 4 s are each identical or different; and * denotes a binding site to —O—in the formula (1).