To provide an electromagnetic wave shield sheet, an electromagnetic wave shielded wiring circuit board, and an electronic device having high electromagnetic wave shielding property and good folding resistance, and reducing transmission loss.SOLUTION: An electromagnetic wave shield sheet 10 according to the present invention includes an adhesive layer 1, an insulating layer 3, and a metal layer 2 arranged between the adhesive layer 1 and the insulating layer 3, and the film thickness of the metal layer 2 is 0.2 to 10 [ micro m], the development length ratio RLr of the interface on the adhesive layer 1 side in the metal layer 2 is 1 to 1.4, and the development length ratio RLr of the interface on the insulating layer 3 side in the metal layer 2 is 1 to 1.5. Further, the development length ratio RLr of the interface on the adhesive layer 1 side is smaller than the...

Keywords
SHAPE STRUCTURE
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