Patent ID: 7989137
Filing Date: 2011-08-02
Classification: G03F,Y10S

Abstract:
1. A resist composition comprising: (A) a resin comprising: a repeating unit capable of decomposing by the action of an acid to increase solubility in an alkali developing solution and represented by the following formula (I), and a repeating unit represented by the following formula (II); and (B) a compound capable of generating an acid upon irradiation with actinic ray or radiation: wherein A represents a hydrogen atom, an alkyl group, a hydroxyl group, an alkoxyl group, a halogen atom, a cyano group, a nitro group, an acyl group, an acyloxy group, a cycloalkyl group, an aryl group, a carboxyl group, an alkyloxycarbonyl group, an alkylcarbonyloxy group, or an aralkyl group; Ra represents a group containing a group capable of decomposing by the action of an acid; Rb represents an alkylene group, a cycloalkylene group, or a group of combining these groups; Y represents a polycyclic heterocyclic group containing nitrogen; and m represents 0 or 1; wherein the resin (A) further comprises: a repeating unit represented by the following formula (III): wherein A represents a hydrogen atom, an alkyl group, a hydroxyl group, an alkoxyl group, a halogen atom, a cyano group, a nitro group, an acyl group, an acyloxy group, a cycloalkyl group, an aryl group, a carboxyl group, an alkyloxycarbonyl group, an alkylcarbonyloxy group, or an aralkyl group; X represents a hydrogen atom or a group containing a group capable of decomposing by the action of an acid, and when there are a plurality of X's, each X may be the same as or different from every other X; Z represents a substituent, and when there are a plurality of Z's, each Z may be the same as or different from every other Z; n represents an integer of from 1 to 5; k represents an integer of from 0 to 4; and n and k satisfy 1≦n+k≦5.