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Adjustable high-trigger-voltage electrostatic discharge protection device

  • US 6,285,062 B1
  • Filed: 05/12/1999
  • Issued: 09/04/2001
  • Est. Priority Date: 05/12/1999
  • Status: Active Grant
First Claim
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1. An apparatus, comprising:

  • a first doped region;

    a first doped well disposed within the first doped region;

    a first doped plug disposed at a location within the first doped well, said location selected to provide a first breakover voltage between the first doped plug and the first doped region;

    a second doped plug disposed within the first doped region; and

    an isolation structure disposed between the first and second doped plugs, wherein a second breakover voltage exists between the first doped well and the first doped region, and the first breakover voltage is less than the second breakover voltage.

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