Patent ID: 6214517
Filing Date: 2001-04-10
Classification: G03F,Y10S

Abstract:
A positive photoresist composition comprising a resin having an ester group represented by the following general formula [I] in its molecule and a compound generating an acid by irradiation of an active light ray or radiation: ##STR79##wherein R.sub.1 represents a hydrogen atom, or a methyl group; and R.sub.2 and R.sub.3, which may be the same or different, each represents a hydrogen atom, a methyl group or --A--R.sub.4, wherein R.sub.4 represents a hydrogen atom, an alkyl group or a cycloalkyl group, R.sub.4 and R.sub.2 or R.sub.3 may combine together to form a ring, and A represents an oxygen atom or a sulfur atom.