Patent ID: 8877432

Claim:
A method of forming a resist pattern comprising: a first patterning step for forming a first resist pattern by applying a first chemically amplified resist composition onto a substrate to form a first resist film, followed by selective exposure and alkali developing of the first resist film; a hard bake step for baking the first resist pattern; and a second patterning step for forming a resist pattern by applying a second chemically amplified resist composition onto the substrate, on which the first resist pattern has been formed, to form a second resist film, followed by selective exposure and alkali developing of the second resist film, wherein a resist composition containing a thermal base generator which is represented by general formula (T1-11), (T1-12) or (T1-13) shown below is used as the first chemically amplified resist composition in the first patterning step, and the baking in the hard bake step is conducted under a bake condition such that a base is generated from the thermal base generator: wherein R 4a represents an adamantyl group or an anthryl group; R 4b represents an aliphatic cyclic group of 6 to 40 carbon atoms which may have a substituent, or a group in which one hydrogen atom has been removed from benzene, biphenyl, indene, naphthalene, anthracene or phenanthrene; R 4c represents an aromatic cyclic group having at least a nitro group as a substituent; and each of R 1a and R 2a independently represents an alkyl group of 1 to 5 carbon atoms.