Patents by Inventor L.C. Kao

L.C. Kao 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).

  • Publication number: 20080153243
    Abstract: Blanket implant diode which can be used for transient voltage suppression having a P+ substrate implanted with an N-type dopant blanket implant near a top surface of the substrate, creating a P? region. An oxide mask is layered adjacent to and above the P? region. The oxide mask is partially etched away from a portion of the P? region, creating an etched region. An N-type main function implant is implanted into the etched region, creating an N+ region above the P+ substrate and adjacent the P? region. And, a metal is layered above the oxide mask in the etched region to form an electrode. Terminations may be attached electrically to both sides of the P-N junction. Methods of making and using the present invention and methods for transient voltage suppression are also provided.
    Type: Application
    Filed: February 20, 2008
    Publication date: June 26, 2008
    Applicant: VISHAY GENERAL SEMICONDUCTORS, LLC
    Inventors: SHENG-HUEI DAI, YA-CHIN KING, CHUN-JEN HUANG, L.C. KAO
  • Publication number: 20070090360
    Abstract: Blanket implant diode which can be used for transient voltage suppression having a P+ substrate implanted with an N-type dopant blanket implant near a top surface of the substrate, creating a P? region. An oxide mask is layered adjacent to and above the P? region. The oxide mask is partially etched away from a portion of the P? region, creating an etched region. An N-type main function implant is implanted into the etched region, creating an N+ region above the P+ substrate and adjacent the P? region. And, a metal is layered above the oxide mask in the etched region to form an electrode. Terminations may be attached electrically to both sides of the P-N junction. Methods of making and using the present invention and methods for transient voltage suppression are also provided.
    Type: Application
    Filed: May 2, 2006
    Publication date: April 26, 2007
    Applicant: Vishay General SemiConductors, LLC
    Inventors: Sheng-Huei Dai, Ya-Chin King, Chun-Jen Huang, L.C. Kao