ELECTROMAGNETIC WAVE SHIELD SHEET, AND PRINTED WIRING BOARD WITH ELECTROMAGNETIC WAVE SHIELD SHEET

摘要

PROBLEM TO BE SOLVED: To provide a printed wiring board with an electromagnetic wave shield sheet which has a superior transmission characteristic, and never foams even when being exposed to a high temperature at lead-free solder reflow after moisture absorption.SOLUTION: An electromagnetic wave shield sheet comprises an insulative layer, a conductive layer and an adhesive layer. The conductive layer includes a resin and a conductive filler. The conductive layer has a surface specific resistance of 100 mΩ/sq. or less and a conductivity of 1×10S/m or more. A printed wiring board with an electromagnetic wave shield sheet comprises: a printed wiring board; and the electromagnetic wave shield sheet stuck to at least one surface of the printed wiring board.