Patent ID: 8394578

Claim:
A method of forming a resist pattern, including: forming a resist film on a substrate using a resist composition containing a base component (A) which exhibits decreased solubility in an organic solvent under action of an acid and an acid-generator component (B) which generates an acid upon exposure, conducting exposure of the resist film, and patterning the resist film by a negative tone development using a developing solution comprising an organic solvent, wherein the base component (A) comprises a resin component (A1) comprised of a structural unit (a1) derived from an acrylate ester containing an acid decomposable group which exhibits increased hydrophilicity by the action of an acid and a structural unit (a0) derived from an acrylate ester containing an —SO 2 — containing cyclic group in which the sulfur atom (S) within —SO 2 — forms part of a ring skeleton of the cyclic group.