Patents by Inventor Ronald P. Mathius

Ronald P. Mathius 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 cleaving a semiconductor crystal body
    Patent number: 5272114
    Abstract: A method for cleaving a semiconductor crystal body having a first surface and an opposite second surface, comprising the steps of forming a channel on the first surface of the semiconductor, scribing a portion of the second surface opposite the channel on the first surface, and mechanically cleaving the semiconductor along a plane defined by said channel on the first surface and said scribe on the second surface.
    Type: Grant
    Filed: September 21, 1992
    Date of Patent: December 21, 1993
    Assignee: Amoco Corporation
    Inventors: Petrus A. van Berkum, Ronald P. Mathius