公开(公告)号：US20140210131A1

公开(公告)日：2014-07-31

申请号：US14230138

申请日：2014-03-31

Applicant: TODA KOGYO CORPORATION

Inventor： Kazumi YAMAMOTO ,  Tetsuya KIMURA

IPC: B29C51/02

CPC classification number: B29C51/02 ,  H01F1/344 ,  H01F1/375 ,  H01F41/16 ,  H01Q17/004 ,  H05K9/0083

Abstract: An electromagnetic noise suppression sheet obtained by using combination of a conductive carbon and spinel ferrite particles having a cumulative 50% volume particle diameter of 1 to 10 μm, can exhibit an excellent transmission attenuation power ratio and a reduced return loss in a near electromagnetic field, and is suitable for high-density mounting. The electromagnetic noise suppression sheet of the present invention can be produced by the process of the present invention which includes the steps of applying a coating material in which the conductive carbon and the spinel ferrite particles having a cumulative 50% volume particle diameter of 1 to 10 μm are dispersed, to form a coating film having a thickness of 10 to 100 μm after dried, and subjecting the resulting coating film to thermoforming under pressure.

Abstract translation: 通过使用具有累积的50％体积粒径为1〜10μm的导电性碳和尖晶石型铁氧体颗粒的组合而获得的电磁噪声抑制片可以表现出良好的透射衰减功率比和近电磁场中的降低的回波损耗， 适用于高密度安装。 本发明的电磁噪声抑制片可以通过本发明的方法制造，该方法包括以下步骤：施加具有累积的50％体积粒径的导电性碳和尖晶石型铁素体粒子为1〜10的涂层材料 分散，在干燥后形成厚度为10〜100μm的涂膜，并对所得涂膜进行加压成型。