Patents by Inventor Martin A. Gifford

Martin A. Gifford 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).

  • Measurement of critical dimensions of nanostructures using X-ray grazing incidence in-plane diffraction
    Patent number: 10060865
    Abstract: The manufactured structure is illuminated with an x-ray beam. The manufactured structure is positioned at a selected grazing angle and a selected rotation angle with respect to the x-ray beam. The selected rotation angle has been selected to enhance in-plane diffraction of reflections of the x-ray beam by the manufactured structure. A grazing in-plane diffraction beam produced by interference with the periodic feature is detected. A property of the grazing in-plane diffraction beam is determined by the critical dimension.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: August 28, 2018
    Assignee: Lyncean Technologies, Inc.
    Inventors: Ronald D. Ruth, Roderick J. Loewen, Martin A. Gifford
  • MEASUREMENT OF CRITICAL DIMENSIONS OF NANOSTRUCTURES USING X-RAY GRAZING INCIDENCE IN-PLANE DIFFRACTION
    Publication number: 20160266056
    Abstract: The manufactured structure is illuminated with an x-ray beam. The manufactured structure is positioned at a selected grazing angle and a selected rotation angle with respect to the x-ray beam. The selected rotation angle has been selected to enhance in-plane diffraction of reflections of the x-ray beam by the manufactured structure. A grazing in-plane diffraction beam produced by interference with the periodic feature is detected. A property of the grazing in-plane diffraction beam is determined by the critical dimension.
    Type: Application
    Filed: March 9, 2016
    Publication date: September 15, 2016
    Inventors: Ronald D. Ruth, Roderick J. Loewen, Martin A. Gifford
  • Laser diode light imaging optics
    Patent number: 5076678
    Abstract: A diode imaging system using a single objective lens and a single cylindrical lens. This imaging system does not image perfectly point-to-point, and although not an apparent extension of imaging systems known in the prior art, it works advantageously for imaging beams from diode lasers having long narrow junctions used in pumping solid-state lasers.
    Type: Grant
    Filed: April 25, 1989
    Date of Patent: December 31, 1991
    Assignee: Lightwave Electronics Corporation
    Inventors: William M. Grossman, Richard W. Wallace, Leonard Pearson, Martin A. Gifford