Patents by Inventor James S. Greeneich

James S. Greeneich 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).

  • Patent number: 4264711
    Abstract: In the process of constructing microelectronic circuits on a semiconductor chip, electron-beam lithography is utilized to fabricate high resolution resist patterns. The resolution however, is limited by proximity effects which are due to scattering of the electron-beam as it passes through the resist. In the disclosed method, those proximity effects are compensated for by making the energy that is absorbed by the resist from the electrons, substantially greater at the perimeter of each shape in the pattern than at the interior of those shapes.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: April 28, 1981
    Assignee: Burroughs Corporation
    Inventor: James S. Greeneich