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Protection of an integrated circuit with voltage variable materials

  • US 6,211,554 B1
  • Filed: 12/07/1999
  • Issued: 04/03/2001
  • Est. Priority Date: 12/08/1998
  • Status: Expired due to Fees
First Claim
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1. An electrical device for providing protection against EOS transients, the device comprising:

  • an integrated circuit die;

    a plurality of conductive input/output pads disposed on the integrated circuit die;

    a first conductive guard rail disposed on the integrated circuit die adjacent the plurality of conductive input/output pads forming a gap between the conductive guard rail and each one of the conductive input/output pads;

    a voltage variable material disposed in the gaps and forming a path between each one of the plurality of conductive input/output pads and the first conductive guard ring; and

    a plurality of electrical leads electrically connected to a respective one of the plurality of conductive input/output pads.

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