Over-voltage protection device and method for making same

  • US 6,172,590 B1
  • Filed: 10/01/1997
  • Issued: 01/09/2001
  • Est. Priority Date: 01/22/1996
  • Status: Expired due to Term
First Claim
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1. An electrical protection device comprising:

  • a substrate having a first surface and a second surface;

    a first pad attached to the second surface of the substrate;

    a second pad spaced from the first pad and attached to the second surface of the substrate;

    a third pad attached to the first surface of the substrate and being in electrical communication with the first pad;

    a fourth pad spaced from the third pad by a gap and attached to the first surface of the substrate, the fourth pad being in electrical communication with the second pad, wherein the gap operates to substantially electrically isolate the fourth pad from the third pad except in the presence of an overvoltage event.

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