Patent ID: 7625689
Filing Date: 2009-12-01
Classification: C07C,C07D,G03F

Abstract:
1. A chemically amplified positive resist composition comprising (i) a polymer which is insoluble or poorly soluble in an alkali aqueous solution but becomes soluble in an alkali aqueous solution by the action of an acid, (ii) an acid generator, and (iii) a compound of the formula (I) wherein Z represents hydrocarbon group having 2 to 14 carbon atom, and at least one of —CH 2 — except the one bonding to other group adjacent to Z may be substituted by —O—; A represents divalent alicyclic hydrocarbon group having 3 to 14 carbon atoms; W represents hydrogen atom, alkyl group having 1 to 12 carbon atoms, alkoxyalkyl group having 2 to 12 carbon atoms, or a group of the formula (II) wherein X represents divalent connecting group, R represents hydrogen atom, alkyl group having 1 to 6 carbon atoms or cycloalkyl group having 3 to 6 carbon atoms, Y represents atoms necessary to form an alicyclic hydrocarbon group together with the adjacent carbon atom and contains 4 to 12 carbon atoms, and at least one of —CH 2 — in the alicyclic hydrocarbon group may be substituted by —CO— or —O—, and at least one of hydrogen atoms in the alicyclic hydrocarbon group may be substituted by alkyl group having 1 to 4 carbon atoms, alkoxy group having 1 to 4 carbon atoms, trifluoromethyl group, hydroxyl group or cyano group, and 1 represents 0 or 1, and each of m and n shows an integer satisfying the following inequalities: 0≦m≦13, 1≦n≦14, 2≦m+n≦14, and when n is 2 or more, each of A is the same or different, and also each of W is the same or different.