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Static charge dissipation for an active circuit surface

  • US 6,686,546 B2
  • Filed: 12/30/1998
  • Issued: 02/03/2004
  • Est. Priority Date: 12/30/1998
  • Status: Expired due to Term
First Claim
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1. A method of forming an electrostatic discharge device comprising the steps of:

  • forming a composite protective layer including an insulating layer between and over a plurality of conductive plates within an array of capacitive sensor pixels operable to sense surface features on an object proximate to the conductive plates, wherein the protective layer isolates the conductive plates and protects the conductive plates from damage, and wherein the protective layer comprises a conductive grid including lines extending along logical boundaries between adjoining capacitive sensor pixels and separated by open regions in the conductive grid over at least portions of the conductive plates.

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