| 摘要 |
PROBLEM TO BE SOLVED: To provide a film with a metal layer constituted by strongly bonding a heat-resistant resin film and a metal foil without damaging the physical properties of the heat-resistant resin film, and a flexible printed wiring board using it. SOLUTION: The film with the metal layer is constituted by forming an adhesive layer (B) and a metal layer (C) at least on one side of the heat-resistant resin film (A). The adhesive layer (B) contains a polyimide resin having a diamine component and a tetracarboxylic acid component and the amino equivalent of the polyimide resin is 2,000-60,000 g/mol. COPYRIGHT: (C)2005,JPO&NCIPI |
