Patent ID: 7037637
Filing Date: 2006-05-02
Classification: C08K,C08L,G03F

Abstract:
1. A photosensitive polyimide resin precursor composition comprising: (a) 100 parts by weight of a polyamic acid obtained from a tetracarboxylic dianhydride and a diamine, (b) 0.01 parts by weight or more and less than 4 parts by weight of a 1,4-dihydropyridine derivative represented by the following formula (I): wherein Ar represents an aromatic group having a nitro group at ortho-position with respect to a bonding position to 1,4-dihydropyridine ring; R (c) 5–50 parts by weight of at least one glycol (ether) having a weight average molecular weight of 100–3,000 selected from the group consisting of polyethylene glycol, polyethylene glycol monomethyl ether, polyethylene glycol dimethyl ether, polyethylene glycol monophenyl ether, polyethylene glycol diphenyl ether, polypropylene glycol, polypropylene glycol monomethyl ether, polypropylene glycol dimethyl ether, polypropylene glycol monophenyl ether, and polypropylene glycol diphenyl ether.