Patent ID: 7399574

Claim:
A curable resin for photo-patterning, which is an imide-containing copolymer having a molecular structure wherein at least the following units are connected: a constitutional unit having a cyclic imide group represented by the following formula (1): wherein R 3 and R 4 each independently represent an alkyl group having 4 or less carbon atoms, or one of R 3 and R 4 is a hydrogen atom and the other thereof is an alkyl group having 4 or less carbon atoms, or R 3 and R 4 are combined with each other to form a carbon ring; a constitutional unit having an acid functional group; and a constitutional unit having a photopolymerizing functional group other than the cyclic imide group, wherein the photopolymerizing functional group other than the cyclic imide group is an ethylenic unsaturated bond.