Patents by Inventor Ray E. Wyatt

Ray E. Wyatt 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).

  • Process for forming retrograde dopant distributions utilizing simultaneous outdiffusion of dopants
    Patent number: 4578128
    Abstract: A retrograde dopant distribution is provided in a semiconductor substrate by the combined use of indiffusion and surface outdiffusion and without the use of high energy implants or buried epitaxial layers. The retrograde dopant distribution is provided both in the n-well and the p-well regions to a depth sufficient to accommodate deep trench isolation structures.
    Type: Grant
    Filed: December 3, 1984
    Date of Patent: March 25, 1986
    Assignee: NCR Corporation
    Inventors: Randall S. Mundt, Ray E. Wyatt