Patent ID: 8889339

Claim:
A resist pattern forming method, comprising: in the following order, (1) forming a resist film by using a negative chemical amplification resist composition containing (A) a polymer compound having a repeating unit represented by formula (1), (B) a compound capable of generating an acid upon irradiation with an actinic ray or radiation and (C) a crosslinking agent capable of crosslinking the polymer compound (A) by an action of an acid; (2) exposing the resist film, so as to form an exposed resist film; and (4) developing the exposed resist film by using a developer containing an organic solvent: wherein R 1 represents a hydrogen atom or a methyl group; X represents a group having a non-acid-decomposable polycyclic alicyclic hydrocarbon structure; Ar represents an aromatic ring; and m is an integer of 1 or more.