Patents by Inventor Margaret S. Fyfield

Margaret S. Fyfield 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).

  • Probing fixture for semiconductor wafer
    Patent number: 7053639
    Abstract: A semiconductor wafer is placed into a probe fixture with a front side of the wafer facing up. Power and signal probes are then placed on an integrated circuit (IC) formed on the front side of the wafer. The probe fixture is retained at a test station either in a upright or an inverted position for testing and optical failure analysis. The probe fixture includes a position adjustment mechanism to locate the entire probe above the wafer and to more precisely position a tip of the probe on the IC. Optical failure analysis techniques are performed on the front side or the back side of the wafer while the wafer is retained in the test fixture and the probes are connected to the IC.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: May 30, 2006
    Assignee: LSI Logic Corporation
    Inventor: Margaret S. Fyfield
  • Method for probing a semiconductor wafer
    Patent number: 6927079
    Abstract: A semiconductor wafer is placed into a probe fixture with a front side of the wafer facing up. Power and signal probes are then placed on an integrated circuit (IC) formed on the front side of the wafer. The probe fixture is retained at a test station either in a upright or an inverted position for testing and optical failure analysis. The probe fixture includes a position adjustment mechanism to locate the entire probe above the wafer and to more precisely position a tip of the probe on the IC. Optical failure analysis techniques are performed on the front side or the back side of the wafer while the wafer is retained in the test fixture and the probes are connected to the IC.
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: August 9, 2005
    Assignee: LSI Logic Corporation
    Inventor: Margaret S. Fyfield