Patents by Inventor Sandra Schujman

Sandra Schujman 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).

  • Polar surface preparation of nitride substrates
    Publication number: 20060288929
    Abstract: Fabrication of AlN substrates suitable for epitaxial deposition of high-quality nitride-based compounds thereon having at least one single-crystal and substantially planarized useful area exceeding about 1 cm2 with a peak-to-valley surface topography in the useful area being less than about 50 nm is accomplished by, for example, employing an active solution that reacts non-selectively with the substrate material.
    Type: Application
    Filed: June 7, 2006
    Publication date: December 28, 2006
    Applicant: Crystal IS, Inc.
    Inventors: Glen Slack, Sandra Schujman, Nicholas Meyer, Leo Schowalter