Patent ID: 8637222

Claim:
A resist pattern forming method comprising, in the following order: (1) a step of forming a film by using a negative chemical-amplification resist composition capable of undergoing negative conversion by a crosslinking reaction; (2) a step of exposing the film; and (4) a step of developing the exposed film by using a developer containing an organic solvent, wherein: the negative chemical-amplification resist composition comprises: (A) a resin; (B) a crosslinking agent capable of crosslinking the resin (A) by the action of an acid; and (C) a compound capable of generating an acid upon irradiation with an actinic ray or radiation; the resin (A) is a resin containing a repeating unit represented by formula (1): wherein A represents a hydrogen atom, an alkyl group, a cycloalkyl group, a halogen atom or a cyano group, R represents a halogen atom, an alkyl group, a cycloalkyl group, an aryl group, an alkenyl group, an aralkyl group, an alkoxy group, an alkylcarbonyloxy group or an alkylsulfonyloxy group, and when a plurality of R′s are present, each R may be the same as or different from every other R and they may combine with each other to form a ring, a represents an integer of 1 to 3, and b represents an integer of 0 to (3-a); and the crosslinking agent (B) is a phenol compound having two or more benzene rings in the molecule.