ELECTROMAGNETIC-WAVE SHIELD FILM
    1.
    发明公开

    公开(公告)号:EP3439447A1

    公开(公告)日:2019-02-06

    申请号:EP17773845.7

    申请日:2017-02-21

    IPC分类号: H05K9/00 B32B7/02 B32B27/18

    摘要: Provided is an electromagnetic wave shielding film capable of reducing a space formed between the electromagnetic wave shielding film and an electronic component on a wiring substrate and to increase an electromagnetic wave shielding effect. An electromagnetic wave shielding film 1 includes a conductive layer 3 having stretchability and a property of hardly returning to an original state thereof when once stretched, and an adhesion layer 4 formed on one surface of the conductive layer 3 and having insulating properties. The conductive layer 3 is made of a conductive composition, including a resin having stretchability and a property of hardly returning to an original state thereof when once stretched and a conductive filler filled with the resin. The resin has a tensile permanent set of 2.5% or more and 90% or less.

    ELECTROMAGNETIC WAVE SHIELD FILM
    3.
    发明公开

    公开(公告)号:EP4401524A1

    公开(公告)日:2024-07-17

    申请号:EP22867092.3

    申请日:2022-07-22

    摘要: Provided is an electromagnetic wave shielding film capable of blocking or allowing passage of only an electromagnetic wave with a specific frequency. An electromagnetic wave shielding film, including: a metamaterial layer including a first main surface and a second main surface opposite to the first main surface; and an adhesive layer formed on the second main surface of the metamaterial layer, wherein when the metamaterial layer is viewed in a plan view from at least one of the first main surface or the second main surface, the metamaterial layer includes a conductive region where predetermined patterns made of a conductive material are periodically arranged, and a non-conductive region other than the conductive region.