Patents by Inventor Dan Sundstrom

Dan Sundstrom 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).

  • Semiconductor device with a control electrode in pressure contact with the semiconductor disc
    Patent number: 3931635
    Abstract: A semiconductor device is formed of a box having a bottom and a lid, formed of metallic material and each maintaining an electrical contact with one side of the semiconductor disc. The bottom and lid are each connected to a ring of insulating material. A metal ring is positioned between and secured to the rings of insulating material. A control electrode is secured at its ends to the metal ring and extends substantially diametrically thereacross. The control electrode has a projecting contact part which is in engagement with one side of the semiconductor disc and is of such height as to be held by the control electrode in pressure contact with such side.
    Type: Grant
    Filed: May 7, 1974
    Date of Patent: January 6, 1976
    Assignee: Allmanna Svenska Elektriska Aktiebolaget
    Inventor: Dan Sundstrom