Patents by Inventor C. G. Sheen

C. G. Sheen 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).

  • Embedded type package of power semiconductor device
    Patent number: 6455929
    Abstract: An embedded type package of power semiconductor device comprises a semiconductor device and a cup. One side of the semiconductor device is connected to a leader and another side of the semiconductor device is connected to the cup. The cup has guiding bevel and annulus groove on bottom side thereof. The cup further has an embedding part on outer side thereof and having two slantingly planes. The cup further comprises a heatsink connected to the semiconductor device; and a cone-shaped inner wall bordered to the heatsink and having a mold lock.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: September 24, 2002
    Assignee: Actron Technology Corporation
    Inventor: C. G. Sheen
  • Structure of bridge rectifier
    Patent number: 5057991
    Abstract: A bridge rectifier, comprising a first pair of silicon chips connected between a first outer lead and two inner leads, a second pair of silicon chips connected between said two inner leads and a second outer lead, and a pair of conductive blocks connected between said two inner leads and said second pair of silicon chips. The positive (negative) pole of the silicon chips is disposed at the same direction with one another so that the silicon chips can be mounted in a mold through an automatic silicon mounting device.
    Type: Grant
    Filed: January 24, 1991
    Date of Patent: October 15, 1991
    Assignee: Silitek Corporation
    Inventor: C. G. Sheen