Patent ID: 6242153
Filing Date: 2001-06-05
Classification: G03F,Y10S

Abstract:
A positive photoresist composition for far ultraviolet ray exposure use, which comprises a resin that contains a repeating structural unit composed of a monomer represented by the following general formula [I] and another monomer having an amine structure in its molecule and is decomposed by the action of an acid thereby increasing its alkali solubility, and a compound that generates an acid by irradiation of an active light ray or radiation: ##STR44##wherein R.sub.1 represents a hydrogen atom or a methyl group, R.sub.2 represents an alkyl group, a cyclic alkyl group or a substituted alkyl group, R.sub.3 and R.sub.4 may be the same or different and each represents a hydrogen atom or an alkyl group, with the proviso that at least one of R.sub.3 and R.sub.4 is a hydrogen atom, and A represents a single bond or one group or a combination of two or more groups selected from an alkylene group, a substituted alkylene group, an ether group, a thioether group, a carbonyl group, an ester group, an amido group, a sulfonamido group, a urethane group and a urea group.