Patent ID: 8900791

Claim:
An actinic ray-sensitive or radiation-sensitive resin composition comprising any of the compounds of general formula (I) below; wherein: Ar represents a benzene ring that may have a substituent other than the -(A-B) groups and at least one o-position of the benzene ring is substituted with the -(A-B) group; n is 3; A represents any one, or a combination of two or more members selected from a single bond, an alkylene group, —O—, —S—, —C(═O)—, —S(═O)—, —S(═O) 2 — and —OS(═O) 2 —, provided that —C(═O)O— is excluded; B represents a group containing a cycloaliphatic group having 4 or more carbon atoms wherein either a tertiary or a quaternary carbon atom is contained, the three -(A-B) groups may be identical to or different from each other and the three -(A-B) groups are substituted at two o-positions and one p-position of the benzene ring; and M + represents an organic onium ion.