Patents by Inventor Henri J. F. Kool Van Langenberghe

Henri J. F. Kool Van Langenberghe 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).

  • Bipolar transistor with protective diode in collector
    Patent number: 4530000
    Abstract: A semiconductor device, comprising a semiconductor body with a bipolar transistor with a collector zone which is formed by a part of a semiconductor region, a base zone and an emitter zone which is embedded in the base zone. The base zone is connected to a base metallization and the emitter zone is connected to an emitter metallization which comprises an emitter connection electrode. Between the emitter and the collector of the transistor there is connected a diode with a first zone which forms part of the semiconductor region and a second zone which is completely surrounded by the first zone and in projection is completely situated within the emitter connection electrode. This emitter connection electrode is connected to the second zone of the diode.
    Type: Grant
    Filed: October 13, 1981
    Date of Patent: July 16, 1985
    Assignee: U.S. Philips Corporation
    Inventors: Martinus L. J. A. van De Wouw, Henri J. F. Kool Van Langenberghe