Patent ID: 8450041

Claim:
An actinic ray-sensitive or radiation-sensitive resin composition, comprising: (A) a compound capable of generating an acid represented by formula (I-A) or (I-B) upon irradiation with an actinic ray or radiation; and (B) a resin capable of increasing a dissolution rate of the resin (B) in an alkali developer by an action of an acid, the resin (B) containing a repeating unit represented by formula (3-1): wherein each of R 1 to R 8 independently represents a hydrogen atom, an alkyl group, a cycloalkyl group, a halogen atom or a hydroxyl group, provided that at least one of R 1 to R 8 is a fluorine atom or a fluorine atom-containing group; each of A 1 and A 2 independently represents a divalent linking group or a single bond; R represents a substituent, and when a plurality of R's are present, two or more R's may combine with each other to form a ring; k represents an integer of 0 to 5; n represents an integer of 0 to 5; and each of m1 to m4 independently represents an integer of 0 to 12, provided that at least one of m1 to m4 is an integer of 1 or more: wherein R 7 represents a hydrogen atom, a halogen atom or an alkyl group; A represents an ester bond or a group represented by —CONH—; R 0 represents an alkylene group, a cycloalkylene group or a combination thereof, and when a plurality of R 0 's are present, the plurality of R 0 's are the same or different; Z represents an ether bond, an ester bond, an amide bond, a urethane bond or a urea bond, and when a plurality of Z's are present, the plurality of Z's are the same or different; R 9 represents an alkyl group, a cycloalkyl group, an alkoxycarbonyl group, a cyano group, a hydroxyl group or an alkoxy group, and when a plurality of R 9 's are present, the plurality of R 9 's are the same or different, and two members thereof may combine with each other to form a ring; X represents an alkylene group, an oxygen atom or a sulfur atom; m represents an integer of 0 to 5; and n is a repetition number of the structure represented by —R 0 —Z— in the repeating unit represented by formula (3-1) and represents an integer of 1 to 5; wherein the resin (B) further contains a repeating unit having a polar group-free alicyclic hydrocarbon structure and not exhibiting acid decomposability represented by the following formula: wherein Ra represents a hydrogen atom, a methyl group, —CH 2 OH or —CF 3 .