Patents by Inventor Mitchell C. Sebring

Mitchell C. Sebring 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).

  • Circuit board voltage plane impedance matching
    Patent number: 6150895
    Abstract: A circuit board having a transition region at its perimeter. The transition region provides a deliberate increase in impedance between the voltage and ground plane from the interior side of the transition region where the board impedance is approximately that of the board impedance at an interior region of the circuit board to the edge side of the transition region where the impedance level approximates or is slightly less than that of surrounding air. In one example, the voltage plane in the transition region has a geometric configuration that provides a decrease in plane material (such as a hole, stripe, or triangle pattern) from the interior side to the edge side of the transition region. With other examples, the distance between the voltage and ground plane increases from the interior side to the edge side of the transition region.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: November 21, 2000
    Assignee: Dell USA, L.P.
    Inventors: Todd W. Steigerwald, Mitchell C. Sebring