Patent ID: 6010820
Filing Date: 2000-01-04
Classification: G03F,Y10S

Abstract:
A positive photosensitive composition comprising(1) a resin having group(s) capable of decomposing by the action of an acid to enhance solubility of the resin in an alkaline developing solution and(2) a compound represented by formula (I) or (II) which is capable of generating a sulfonic acid upon irradiation with actinic rays or a radiation: ##STR30## wherein R.sub.1 to R.sub.5 each represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a hydroxy group, a halogen atom, or a group represented by --S--R.sub.6, where R.sub.6 represents an alkyl group or an aryl group; and X.sup.- represents the anion of a benzenesulfonic or naphthalenesulfonic acid which has at least one group selected from the following group (i), at least two groups selected from the following group (ii), or at least three groups selected from the following group (iii),where group (i) is selected from the group consisting of branched and cyclic alkyl groups having 8 or more carbon atoms and branched and cyclic alkoxy groups having 8 or more carbon atoms;group (ii) is selected from the group consisting of linear, branched and cyclic alkyl groups having 4 to 7 carbon atoms and linear, branched and cyclic alkoxy groups having 4 to 7 carbon atoms; andgroup (iii) is selected from the group consisting of linear and branched alkyl groups having 1 to 3 carbon atoms and linear and branched alkoxy groups having 1 to 3 carbon atoms.