ELECTROMAGNETIC SHIELD FILM, FLEXIBLE PRINTED WIRING BOARD WITH ELECTROMAGNETIC SHIELD FILM, AND THEIR MANUFACTURING METHODS

摘要

PROBLEM TO BE SOLVED: To provide an electromagnetic wave shield film capable of maintaining the electromagnetic wave noise shield effect, even if a metal thin film layer is cracked, and to provide a flexible printed wiring board with an electromagnetic wave shield film, and their manufacturing methods.SOLUTION: An electromagnetic wave shield film 10 includes an insulating protective layer 12, a metal thin film layer 14 having a surface resistance of 0.01-0.3 Ω, and an isotropic conductive adhesive layer 16 containing a conductive filler and having a surface resistance of 1-100 Ω, in order. A flexible printed wiring board with an electromagnetic wave shield film includes a flexible printed wiring board, an insulating film, and the electromagnetic wave shield film 10.SELECTED DRAWING: Figure 1