| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyimide/metal laminated sheet capable of finely processing a stainless foil by using a specific thermoplastic polyimide as an etching stop layer of stainless steel. SOLUTION: The polyimide/metal laminated sheet is constituted by forming thermoplastic polyimide layers on both surfaces of a non-thermoplastic polyimide layer and laminating the stainless steel foils comprising stainless steel 304 on both surfaces of the thermoplastic polyimide layers. The thermoplastic polyimide is a thermoplastic polyimide synthesyzed from at least one kind of a diamine selected from the group consisting of 1, 3-bis(3-aminophenoxy)benzene, 4, 4-bis(3-aminophenoxy)biphenyl and 3, 3'-diaminobenzophenone and at least one kind of tetracarboxylic acid dianhydride selected from the group consisting of 3, 3', 4, 4'-diphenylether tetracarboxylic acid dianhydride, 3, 3', 4, 4'-benzophenonetetracarboxylic acid dianhydride and a pyromellitic acid dianhydride. COPYRIGHT: (C)2004,JPO |
