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Reliability Metal Traces

  • US 20090266621A1
  • Filed: 04/25/2008
  • Published: 10/29/2009
  • Est. Priority Date: 04/25/2008
  • Status: Active Grant
First Claim
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1. A method for improving reliability of conductive traces on a touch sensor panel, comprising:

  • forming a first layer of a first conductive material on a substrate;

    forming a second layer of a second conductive material on the first layer, the first layer for adhering the second layer to the substrate;

    forming a third layer of the first conductive material on the second layer, the third layer for protecting the second layer;

    patterning the first, second and third layers to form the conductive traces;

    applying an organic polymer photoimageable passivation layer over the conductive traces; and

    using photolithography to pattern and limit the organic photoimageable passivation layer to nontransparent areas of the touch sensor panel.

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