Patent ID: 7030170

Claim:
A photosensitive resin composition comprising: (A) a polyamic acid, (B) a (meth)acrylate having at least two photopolymerizable C═C unsaturated double bonds, (C) a photopolymerization initiator, and (D) a flame retardant, wherein the (meth)acrylate (B) having at least two photopolymerizable C═C unsaturated double bonds is contained in an amount of 10 to 700 parts by weight based on 100 parts by weight of the polyamic acid (A), and wherein the flame retardant (D) is an addition product of an organic phosphorus compound represented by the following formula (4), (5) or (6): with at least one compound selected from a compound having 1 to 4 epoxy groups, a compound having 1 to 4 (meth)acrylic groups or a compound having 1 to 4 vinyl groups.