Patent ID: 8349535

Claim:
An actinic ray-sensitive or radiation-sensitive resin composition comprising: (A) a resin containing the repeating units of formulae (I), (II) and (III) that when acted on by an acid, becomes soluble in an alkali developer, and (B) a compound that when irradiated with actinic rays or radiation, generates a fluorine-containing acid, in the formula (II), R 1 represents a hydrogen atom or an optionally substituted methyl group, and in the formula (III), R 1 represents a hydrogen atom or an optionally substituted methyl group, R 2 represents a halogen atom, an optionally substituted alkyl group, an optionally substituted cycloalkyl group, an optionally substituted aryl group or an optionally substituted aralkyl group, n is an integer of 0 to 5, provided that when n is 2 or greater, multiple R 2 s may be identical to or different from each other, and wherein at least one member selected from among the compounds of formulae (B-a) and (B-b) is contained as the acid generator constituting the component (B), wherein each of R 3 s independently represents a hydrogen atom, an optionally substituted alkyl group an optionally substituted aryl group, an optionally substituted alkoxy group or an optionally substituted cycloalkyl group, R 4 represents a phenyl group substituted with at least a fluorine atom and/or a fluoroalkyl group, and n is an integer of 0 to 5, wherein each of R 3 s independently represents a hydrogen atom, an optionally substituted alkyl group, an optionally substituted aryl group, an optionally substituted alkoxy group or an optionally substituted cycloalkyl group, G represents a linkage group, R 5 represents an organic group containing a heterocyclic group; or an optionally substituted aryl group, or an optionally substituted cycloalkyl group, m is an integer of 2 or greater, p is an integer of 0 or greater, and n is an integer of 0 to 5, provided that when p is 2 or greater, multiple Gs may be identical to or different from each other.