Patents by Inventor David R. Keenan

David R. Keenan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Probe finger structure and method for making a probe finger structure
    Publication number: 20040119485
    Abstract: A method for making a probe finger structure including the steps of providing a wafer or wafer portion having an upper layer, a lower layer and an insulating or etch stop layer located between the upper and lower layers. The method further includes the step of etching the lower layer to form a mounting portion, and etching the upper layer to form a plurality of probe fingers. The method also includes the step of locating an electrically conductive material on each of the probe fingers.
    Type: Application
    Filed: December 20, 2002
    Publication date: June 24, 2004
    Inventors: Daniel J. Koch, David R. Keenan, Greg L. Gephart