Patents by Inventor Peter L. Pegler

Peter L. Pegler 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 making a structure for top surface gettering of metallic impurities
    Patent number: 5556793
    Abstract: A method for gettering metallic impurities from a semiconductor substrate (25). A gettering structure is fabricated in inactive areas of a semiconductor chip (31). The gettering structure is manufactured by forming an oxide (30) having a bird's head structure contacting a heavily doped region (28). The combination creates precipitation nuclei to which the metallic impurities migrate. The metallic impurities are sequestered by the precipitation nuclei or trap sites and rendered incapable of degrading the electrical characteristics of a semiconductor device.
    Type: Grant
    Filed: November 1, 1993
    Date of Patent: September 17, 1996
    Assignee: Motorola, Inc.
    Inventors: Steven J. Adler, George W. Hawkins, Israel A. Lesk, Peter L. Pegler, Hassan Pirastehfar