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Relay substrate and substrate assembly

  • US 7,696,628 B2
  • Filed: 01/30/2008
  • Issued: 04/13/2010
  • Est. Priority Date: 01/31/2007
  • Status: Active Grant
First Claim
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1. A substrate for connecting circuit boards, comprising:

  • a substrate member having a first surface and a second surface facing each other and a first end and a second end facing each other;

    a first signal line formed on the first surface;

    a second signal line formed on the second surface;

    a third signal line connecting the first signal line with the second signal line;

    a first ground plane arranged on the first surface and surrounding the first signal line; and

    a portion of the second signal line formed over the first ground plane, the portion being narrower than another portion of the second signal line.

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