Method and apparatus for using flex circuit technology to create a reference electrode channel

  • US 20070202672A1
  • Filed: 02/22/2007
  • Published: 08/30/2007
  • Est. Priority Date: 02/27/2006
  • Status: Active Grant
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First Claim
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1. A method of creating a sensor, comprising:

  • applying a first conductive material on a first portion of a substrate to form a reference electrode;

    depositing a first mask over the substrate, the first mask having an opening that exposes the reference electrode and a second portion of the substrate;

    depositing a second conductive material into the opening in the first mask, the second conductive material being in direct contact with the reference electrode; and

    depositing a second mask over the second conductive material, the second mask having an opening over the second portion of the substrate, the opening exposing a portion of the second conductive material, which forms a working surface to receive a fluid of interest.

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