Patents by Inventor Lowell Clark

Lowell Clark 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).

  • High power semiconductor device with integral on-state voltage detection structure
    Patent number: 5289028
    Abstract: A semiconductor device having a power switch (12) and a saturation detection diode (13) formed in an upper surface of a semiconductor drift region (11) is provided. The saturation detector diode (13) and the power switch (12) are electrically coupled by the drift region (11). An external signal applied to the detector diode (13) forward biases the detector diode (13) when the drift region (11) potential is below a predetermined voltage and the detector diode (13) becomes reverse biased when the drift region (11) potential is greater than the predetermined voltage.
    Type: Grant
    Filed: November 4, 1991
    Date of Patent: February 22, 1994
    Assignee: Motorola, Inc.
    Inventors: Lowell Clark, Robert B. Davies, David F. Mietus