Patent ID: 8541161

Claim:
An actinic ray-sensitive or radiation-sensitive resin composition comprising: (A) a resin capable of increasing the solubility in an alkali developer by the action of an acid, the resin containing a repeating unit represented by formula (I), a repeating unit represented by formula (II) and a repeating unit represented by formula (III), (B) a compound capable of generating a fluorine atom-containing sulfonic acid upon irradiation with an actinic ray or radiation, and (B′) a compound capable of generating a fluorine atom-free sulfonic acid upon irradiation with an actinic ray or radiation: wherein each of R 1 and R 11 independently represents a hydrogen atom or an alkyl group which may have a substituent, and R 12 represents a phenyl group which may have a substituent, wherein the content of the component (B) is from 1.0 to 15 mass %, and the content of the component (B′) is from 0.5 to 3 mass %, based on the entire solids content of the composition.