Patent ID: 6265129
Filing Date: 2001-07-24
Classification: G03F,H05K

Abstract:
A positive photosensitive composition, which comprises:(A) an alkali-soluble resin; and(B) a mixture of two photosensitive agents in admixture with the alkali-soluble resin, said first photosensitive agent (i) showing a tendency to form a resist pattern of a feature profile having a micro-groove upon exposure and said second photosensitive agent (ii) not showing the tendency of said first photosensitive agent but showing a tendency to form a resist pattern having a rectangular or tapered cross-sectional feature profile upon exposure, wherein said first photosensitive agent (i) being at least one compound represented by the following general formula (1): ##STR10##where X is OR.sup.1 (where R.sup.1 is a hydrocarbon group of 1-3 carbon atoms) or a residue represented by the following general formula: ##STR11##(where R.sup.2 is a hydrocarbonyl group of 1-3 carbon atoms; m is an integer of 0-2; n is an integer of 1-3, provided that 1.ltoreq.m+n.ltoreq.4), except that 75-100% of the phenolic hydroxyl groups in compound (I) are esterified with naphthoquinonediazidosulfonic acid alone, and said second photosensitive agent (ii) being at least one compound represented by the following formula (VI): ##STR12##except that 50-75% of the phenolic hydroxyl groups in said compounds are esterified with naphthoquinone-1,2-diazidosulfonic acid alone.