发明授权
- 专利标题: Electromagnetic noise suppressor, structure with electromagnetic noise suppressing function, and method of manufacturing the same
- 专利标题(中): 电磁噪声抑制器,具有电磁噪声抑制功能的结构及其制造方法
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申请号: US10538132申请日: 2004-02-24
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公开(公告)号: US07625640B2公开(公告)日: 2009-12-01
- 发明人: Toshiyuki Kawaguchi , Atsushi Taniguchi , Takashi Gonda
- 申请人: Toshiyuki Kawaguchi , Atsushi Taniguchi , Takashi Gonda
- 申请人地址: JP
- 专利权人: Shin-Etsu Polymer Co., Ltd.
- 当前专利权人: Shin-Etsu Polymer Co., Ltd.
- 当前专利权人地址: JP
- 代理机构: Ostrolenk Faber LLP
- 国际申请: PCT/JP2004/002104 WO 20040224
- 国际公布: WO2005/081609 WO 20050901
- 主分类号: B32B15/00
- IPC分类号: B32B15/00
摘要:
An electromagnetic noise suppressor of the present invention has magnetic resonance frequency of 8 GHz or higher, and the imaginary part μ″H of complex magnetic permeability at 8 GHz is higher than the imaginary part μ″L of complex magnetic permeability at 5 GHz. Such an electromagnetic noise suppressor is capable of achieving sufficient electromagnetic noise suppressing effect over the entire sub-microwave band. The electromagnetic noise suppressor can be manufactured by forming a composite layer 3 on the surface of a binding agent 2 through physical deposition of a magnetic material on the binding agent 2. The structure with an electromagnetic noise suppressing function of the present invention is a printed wiring board, a semiconductor integrated circuit or the like that is covered with the electromagnetic noise suppressor on at least a part of the surface of the structure.