Patent ID: 8785917

Claim:
An actinic ray-sensitive or radiation-sensitive resin composition comprising a resin (P) which includes: a repeating unit (A) having an ionic structural moiety which generates an acid anion by being decomposed due to irradiation with actinic rays or radiation; a repeating unit (B) having a proton acceptor moiety, and a repeating unit (C) having a group which generates an alkali soluble group by being decomposed by the action of an acid, and the resin (P) has at least one repeating unit represented by the following general formulae (I) to (III) as the repeating unit (A), wherein, in general formulae (I) to (III), R 1 represents a hydrogen atom, an alkyl group, a cycloalkyl group, a hydroxymethyl group, an alkoxymethyl group, a halogen atom, or a cyano group, R 2 represents —COOR 11 or —CON(R 12 )(R 13 ), R 11 , R 12 , and R 13 each independently represent a hydrogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, an aryl group, or an aralkyl group, R 12 and R 13 may form a ring with a nitrogen atom by being bonded, X 1 , X 2 , and X 3 each independently represent a single bond or a divalent linking group, A 1 , A 2 , and A 3 each independently represent a divalent linking group which does not include a fluorine atom, and Z + represents an onium cation.