MULTILAYER POLYIMIDE FILM AND FLEXIBLE METAL-CLAD LAMINATE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a multilayer polyimide film which can secure high adhesion of a cover-lay film with adhesive or resist, and a flexible metal-clad laminate using the same.

SOLUTION: The multilayer polyimide film includes a thermoplastic polyimide layer provided on at least one side of a non-thermoplastic polyimide layer. The multilayer polyimide film can be attained by a production method of a multilayer polyimide film in which the thermoplastic polyimide layer is composed of a specific aromatic diamine and a specific aromatic acid dianhydride, and is obtained by imidizing a polyamide acid solution having both terminal amino groups obtained by a specific process.

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