Patent ID: 8709552

Claim:
A positive type resin composition comprising (a) a polyimide, a polybenzoxazole, or a resin that has an amide bond in its main chain and can form said polyimide or polybenzoxazole by dehydration-cyclization effected by heat treatment or by chemical treatment, (b) 1,5-dihydroxynaphthalene, 1,6-dihydroxynaphthalene, 1,7-dihydroxynaphthalene, or 2,3-dihydroxynaphthalene, (c) a thermal cross-linking agent having a structure represented by the following formula (1) or a thermal cross-linking agent having a group represented by the following formula (2): wherein in formula (1), R represents a linking group having 2 to 4 valencies, R 1 represents a monovalent organic group having 1 to 20 carbon atoms, Cl, Br, I, or F, R 2 and R 3 each represents CH 2 OR 5 (R 5 is a hydrogen atom or a monovalent hydrocarbon group having 1 to 6 carbon atoms), R 4 represents a hydrogen atom, a methyl group or an ethyl group, s represents an integer of 0 to 2 and u represents an integer of 2 to 4; —N(CH 2 OR 6 ) t (H) v (2) wherein in formula (2), R 6 represents a hydrogen atom or a monovalent hydrocarbon group having 1 to 6 carbon atoms, t is 1 or 2 and v is 0 or 1, provided that t+v is 1 or 2, and (d) a photo acid generator.