FLEXIBLE EPOXY LAMINATED SUBSTRATE AND FLEXIBLE EPOXY PRINTED WIRING BOARD

摘要

PROBLEM TO BE SOLVED: To provide a flexible epoxy laminated substrate having an excellent flexibility, and to provide an epoxy printed wiring board.;SOLUTION: The flexible epoxy laminated substrate comprises at least one layer of metal foil and at least one layer of insulator. The insulator has a curvature radius of 1 mm and can be bent. Especially, the insulator is such that a base material is impregnated with an epoxy resin composition which contains, as a hardener constituent, an acid anhydride system hardener including imide system oligomers which use imide units and have an acid anhydride group at an end, and then the epoxy resin composition is cured.;COPYRIGHT: (C)2004,JPO