ALKALI DEVELOPABLE PHOTOSENSITIVE RESIN COMPOSITION

摘要

PROBLEM TO BE SOLVED: To attain high productivity and reduction of cost and to ensure satisfactory heat and moisture resistances and superior resistance to the heat of soldering by incorporating a carboxyl-containing photopolymerizable unsaturated compound, an epoxy resin containing a condensed polycyclic aromatic skeleton and a photopolymerization initiator. SOLUTION: The alkali developable photosensitive resin composition contains a carboxyl-containing photopolymerizable unsaturated compound, an epoxy resin containing a condensed polycyclic aromatic skeleton and a photopolymerization initiator as essential components. The carboxyl-containing photopolymerizable unsaturated compound may be obtained by allowing a polyfunctional epoxy acrylate compound to react with an acid anhydride compound. The polyfunctional epoxy acrylate compound may be obtained by allowing a polyfunctional epoxy resin such as bisphenol A type epoxy resin to react with an unsaturated carboxylic acid.