Patents by Inventor Michael Curch

Michael Curch 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).

  • Method of forming the NDMOS device body with the reduced number of masks
    Patent number: 7807555
    Abstract: This disclosure describes an improved process and resulting structure that allows a single masking step to be used to define both the body and the threshold adjustment layer of the body. The method consists of forming a first mask on a surface of a substrate with an opening exposing a first region of the substrate; implanting through the opening a first impurity of a first conductivity type and having a first diffusion coefficient; and implanting through the opening a second impurity of the first conductivity type and having a second diffusion coefficient lower than the first diffusion coefficient. The first and second impurities are then co-diffused to form a body region of a field effect transistor. The remainder of the device is formed.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: October 5, 2010
    Assignee: Intersil Americas, Inc.
    Inventor: Michael Curch