Patents by Inventor David Chiola

David Chiola 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: 20070063269
    Abstract: A trench type IGBT has a gate oxide lining the side walls and bottom of the trench which have a thickness greater than 1500? and in the range of 1800? to 2500?, and preferably 2000? to increase the device short circuit capability.
    Type: Application
    Filed: September 20, 2005
    Publication date: March 22, 2007
    Inventors: Chiu Ng, David Chiola