Patent ID: 8828645

Claim:
A negative resist composition comprising at least: (A) a base polymer that is alkaline-soluble and is made alkaline-insoluble by action of an acid; (B) an acid generator; and (C) a basic component, wherein the base polymer at least contains a polymer including repeating units represented by the following: general formula (1), general formula (2), and general formula (3), and having a weight average molecular weight of 1,000 to 10,000, wherein R 1 independently represents a hydrogen atom or a methyl group; s represents 0 or 1; t represents an integer of 0 to 2; R 2 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms; each B 1 and B 2 independently represents a single bond or an alkylene group having 1 to 10 carbon atoms which may contain one or a plurality of an ether bond in the chain of the alkylene group; and a represents an integer of 0 to 3 and b represents an integer of 1 to 3; and each of R 3 and R 4 independently represents a hydrogen atom, a halogen atom, an optionally substituted hydroxyl group, an alkoxy group or an alkyl group, and u represents an integer of 0 to 5, and wherein, the basic component (C) contains at least one or more kinds of amine compounds having a carboxyl group and not having a hydrogen atom covalently bonded to a base-center nitrogen atom, and the amine compound being represented by the following general formula (5), general formula (6), or the general formula (7), wherein each R 6 and R 7 independently represents a linear, a branched, or a cyclic alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, a hydroxy alkyl group having 2 to 10 carbon atoms, an alkoxy alkyl group having 2 to 10 carbon atoms, an acyloxy alkyl group having 3 to 10 carbon atoms, or an alkyl thioalkyl group having 1 to 10 carbon atoms; R 6 and R 7 may be bonded to form a cyclic structure; R 8 represents a hydrogen atom, a linear, a branched, or a cyclic alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, a hydroxy alkyl group having 2 to 10 carbon atoms, an alkoxy alkyl group having 2 to 10 carbon atoms, an acyloxy alkyl group having 3 to 10 carbon atoms, an alkyl thioalkyl group having 1 to 10 carbon atoms, or a halogen group; R 9 represents a single bond, a linear, a branched or a cyclic alkylene group having 1 to 20 carbon atoms, or an arylene group having 6 to 20 carbon atoms; wherein R 6 , R 7 , R 8 , and R 9 represent the same meaning as before; wherein R 10 represents a linear or a branched optionally substituted alkylene group having 2 to 20 carbon atoms which may contain one or a plurality of a carbonyl group, an ether group, an ester group, and a sulfide between the carbon-carbon bond of the alkylene group; and R 11 represents a linear, a branched or a cyclic alkylene group having 1 to 20 carbon atoms, or an arylene group having 6 to 20 carbon atoms.