Shielding film and shielded printed wiring board
Abstract:
There is provided a shielding film that simultaneously satisfies excellent high-speed transmission characteristics and excellent flame retardancy. A shielding film according to the present invention includes: a metal layer; and a conductive adhesive layer arranged on one side of the metal layer. The conductive adhesive layer contains a cured product of an epoxy resin and a carboxyl group-containing elastomer, an organic phosphorus-based flame retardant, and a conductive filler; the metal layer has a thickness of from 0.3 μm to 7 μm; and a conductive adhesive forming the conductive adhesive layer contains 10 parts by weight to 50 parts by weight of the organic phosphorus-based flame retardant and 10 parts by weight to 80 parts by weight of the conductive filler with respect to 100 parts by weight of a total of the epoxy resin and the carboxyl group-containing elastomer.
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