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Detection of conductive material in a thin film

  • US 9,383,439 B2
  • Filed: 06/27/2014
  • Issued: 07/05/2016
  • Est. Priority Date: 06/27/2013
  • Status: Active Grant
First Claim
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1. A method of detecting whether conductive material is present in a thin film, comprising:

  • a. generating a single radio frequency using a transmitter;

    b. guiding the generated radio frequency signal to a wideband antenna port;

    c. transmitting the radio frequency signal using the wideband antenna to transmit the signal;

    d. guiding the radio frequency signal flowing from the wideband antenna to a radio frequency detector;

    e. converting the radio frequency signal to a viewable signal strength indicator; and

    f. determining, based on the output from the signal strength indicator, whether the thin film is a conductive thin film,wherein the thin film is in the vicinity of non-conductive dielectric material and wherein the non-conductive dielectric material generates negligible change in the performance of the wideband antenna such that the presence of conductive material can be detected.

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