Patent ID: 8802349

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) a repeating unit represented by the following formula (AN-01), (B) a compound capable of generating an acid upon irradiation with an actinic ray or radiation, and (C) a resin that contains (c′) a repeating unit having at least either a fluorine atom or a silicon atom and having a group capable of decomposing by the action of an alkali developer to increase the solubility in an alkali developer on one side chain: wherein T represents a single bond or a divalent linking group; R an1 represents a hydrogen atom, a methyl group or a group represented by —CH 2 —R 9 , wherein R 9 represents a hydroxyl group or a monovalent organic group; L an represents a single bond or a divalent linking group; X an represents (1+p)-valent alicyclic structure; p is an integer of 1 to 3; and A an represents a single bond, an alkylene group, a cycloalkylene group, an oxy group, a carbonyl group, an amide group, or a group formed by combining two or more of these groups.