Patent ID: 6068962
Filing Date: 2000-05-30
Classification: G03F,Y10S

Abstract:
A non-chemically enhanced positive resist composition comprising an alkali-soluble novolak resin, a quinonediazide sensitizer and at least one of the following compounds (a) and (b):(a) an acid-generator which is decomposed by the action of an alkali developer and generates an acid and is represented by the following formula (I), (II) or (III): ##STR11## wherein X represents a divalent hydrocarbon group, Y represents a direct bond or an oxygen atom, Z represents ##STR12## wherein R represents an alkyl which may be optionally substituted by alkoxy, halogen or nitro, alicyclic hydrocarbon residue, aryl which may be optionally substituted by alkyl, alkoxy, halogen or nitro, aralkyl which may be optionally substituted by alkyl, alkoxy, halogen or nitro, or camphor group, and(b) a compound selected from the group consisting of 9-anthracenemethanol acetate, 2-ethyl-9,10-dimethoxyanthracene, 2-methyl-9,10-dimethoxyanthracene, 2-t-butyl-9,10-dimethoxyanthracene, 2-ethyl-9,10-diethoxyanthracene and 2-methyl-9,10-diethoxyanthracene.