Patents by Inventor Craig N. Bredbenner

Craig N. Bredbenner 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 for tapered etching
    Patent number: 4919748
    Abstract: A method for etching metal layers including aluminum to create tapered sidewalls is disclosed. The method features the use of trifluoromethane and chlorine in controlled amounts to create a tapered metal layer profile.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: April 24, 1990
    Assignee: AT&T Bell Laboratories
    Inventors: Craig N. Bredbenner, Troy A. Giniecki, Nur Selamoglu, Hans J. Stocker