Patents by Inventor David Lawrence Dummer

David Lawrence Dummer 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).

  • Adapter method and apparatus for interfacing a tester with a device under test
    Patent number: 6828773
    Abstract: A fixture assembly is presented. The fixture assembly includes a device assembly for mating with a device under test and a tester interface assembly for mating with the device assembly on one side and a tester on a second side. In the method and apparatus of the present invention, the device assembly includes a probe field specific to a device under test and may be changed to accommodate a different device, without changing the tester interface assembly. The tester interface assembly includes a frame used for alignment and structural support. The frame interfaces with a probe plate on one side and a load plate on the other side. The probe plate holds a plurality of probes in place while the load plate provides a plurality of holes for the probes to extend downward through the load plate. A printed circuit board (PCB) is positioned below the load plate and makes contact with the ends of the probes.
    Type: Grant
    Filed: March 21, 2002
    Date of Patent: December 7, 2004
    Assignee: Agilent Technologies, Inc.
    Inventors: Jonathan Ernest Buczkowski, David Lawrence Dummer, Julie L Stahmer, Brent W Thordarson
  • ADAPTER METHOD AND APPARATUS FOR INTERFACING A TESTER WITH A DEVICE UNDER TEST
    Publication number: 20030179005
    Abstract: A fixture assembly is presented. The fixture assembly includes a device assembly for mating with a device under test and a tester interface assembly for mating with the device assembly on one side and a tester on a second side. In the method and apparatus of the present invention, the device assembly includes a probe field specific to a device under test and may be changed to accommodate a different device, without changing the tester interface assembly. The tester interface assembly includes a frame used for alignment and structural support. The frame interfaces with a probe plate on one side and a load plate on the other side. The probe plate holds a plurality of probes in place while the load plate provides a plurality of holes for the probes to extend downward through the load plate. A printed circuit board (PCB) is positioned below the load plate and makes contact with the ends of the probes.
    Type: Application
    Filed: March 21, 2002
    Publication date: September 25, 2003
    Inventors: Jonathan Ernest Buczkowski, David Lawrence Dummer, Julie L. Stahmer, Brent W. Thordarson