Patents by Inventor Tien-Ming Liu

Tien-Ming Liu 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).

  • Micro semiconductor bridge rectifier and method of manufacturing the same
    Patent number: 5859468
    Abstract: A micro semiconductor bridge rectifier comprises a first and a second diode chips. The first diode chip comprises an N-type substrate on which two P-type regions are formed. The second diode chip comprises a P-type substrate on which two N-type regions are formed. One P-type region of the first diode chip and one N-type region of the second diode chip are connected to one electrode of a first lead frame, the other P-type region of the first diode chip and the other N-type region of the second diode chip are connected to the other electrode of the first lead frame. The N-type substrate of the first diode chip and the P-type substrate of the second diode chip are connected to respective electrodes of a second lead frame.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: January 12, 1999
    Assignee: Pan Jit International Inc.
    Inventor: Tien-Ming Liu