Patent ID: 8092976
Filing Date: 2012-01-10
Classification: G03F,Y10S

Abstract:
1. A resist composition comprising: a polymer having a group capable of decomposing under an action of an acid and having a weight average molecular weight of from 1,500 to 4,000, of which solubility in an alkali developer increases under an action of an acid; and a compound capable of generating a compound having a structure represented by the following formula (A-II) upon irradiation with actinic rays or radiation: wherein Q X A represents a divalent linking group; B represents a single bond, an oxygen atom or —N(Q Q when B is —N(Q n represents 0 or 1; wherein the polymer having a group capable of decomposing under an action of an acid comprises a repeating unit represented by the following formula (II) and a repeating unit represented by the following formula (III): wherein each R L M represents a single bond or a divalent linking group, Q represents an alkyl group, a cycloalkyl group or an alicyclic or aromatic ring group which may contain a heteroatom, at least two members out of Q, M and L A represents a cyano group, an acyl group, an alkoxy group, an acyloxy group or an alkoxycarbonyl group, and m and n each independently represents an integer of 0 to 4, provided that at least one of m and n is not 0.