发明授权
- 专利标题： Printed circuit board and magnetic head driving device including the same
- 专利标题（中）： 印刷电路板和包括其的磁头驱动装置
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申请号： US12771500申请日： 2010-04-30
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公开(公告)号： US08330054B2公开(公告)日： 2012-12-11
- 发明人: Mitsuru Honjo , Daisuke Yamauchi , Kei Nakamura
- 申请人： Mitsuru Honjo , Daisuke Yamauchi , Kei Nakamura
- 申请人地址： JP Osaka
- 专利权人： Nitto Denko Corporation
- 当前专利权人： Nitto Denko Corporation
- 当前专利权人地址： JP Osaka
- 代理机构： Panitch Schwarze Belisario & Nadel LLP
- 优先权： JP2009-111751 20090501
- 主分类号： H05K1/16
- IPC分类号： H05K1/16
摘要：
A plurality of wiring traces are formed on a base insulating layer, and a metal layer is formed on the opposite surface of the base insulating layer. Two adjacent wiring traces constitute a transmission line pair. The width of the wiring trace is set to not more than 250 μm, and the distance between the adjacent wiring traces is set to not less than 8 μm. The thickness of the base insulating layer is selected to cause differential impedance of the transmission line pair to be not less than 10 Ω and not more than 50 Ω.
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