| abstract |
PROBLEM TO BE SOLVED: To provide a photosensitive resin composition excellent in sensitivity, resolution, fine line adhesion, resist flexibility, developer resistance, plating properties, and resist stripping properties, and to use the same. Provide dry film. SOLUTION: (a) a carboxyl group-containing polymer not containing an unsaturated group, and (b) an unsaturated compound having an alicyclic epoxy group reacted with the carboxyl-containing polymer, the number of unsaturated groups being 0.3 to 3.5 mmol / g. A functional polymer, A photosensitive resin composition containing (c) an ethylenically unsaturated compound and (d) a photopolymerization initiator, and a dry film using the same. |