| abstract |
[PROBLEMS] To provide high sensitivity to active energy rays, particularly excellent exposure curability by direct drawing of laser light, and developability, dryness to touch, heat resistance of solder, electroless gold plating, alkali resistance, Provided is an alkali-developable photocurable resin composition that has excellent resistance to PCT and PCBT and is useful as a solder resist. SOLUTION: (A) a carboxylic acid-containing photosensitive epoxy resin, (B) a photopolymerization initiator, and (C) a compound having two or more ethylenically unsaturated groups in one molecule. Photocurable resin composition capable of alkali development: [Selection figure] None |