Patents by Inventor Mohamed Rezeq

Mohamed Rezeq 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).

  • Nano-tip fabrication by spatially controlled etching
    Patent number: 7431856
    Abstract: A method of fabricating nano-tips involves placing a precursor nanotip with an apex and shank in a vacuum chamber; optionally applying an electric field to the precursor nanotip to remove oxide and other contaminant species; subsequently admitting an etchant gas to the vacuum chamber to perform field assisted etching by preferential adsorption of the etchant gas on the shank; and gradually reducing the applied electric field to confine the adsorption of the etchant gas to the shank as etching progresses.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: October 7, 2008
    Assignees: National Research Council of Canada, The Governors of the University of Alberta
    Inventors: Mohamed Rezeq, Jason Pitters, Robert Wolkow
  • NANO-TIP FABRICATION BY SPATIALLY CONTROLLED ETCHING
    Publication number: 20070025907
    Abstract: A method of fabricating nano-tips involves placing a precursor nanotip with an apex and shank in a vacuum chamber; optionally applying an electric field to the precursor nanotip to remove oxide and other contaminant species; subsequently admitting an etchant gas to the vacuum chamber to perform field assisted etching by preferential adsorption of the etchant gas on the shank; and gradually reducing the applied electric field to confine the adsorption of the etchant gas to the shank as etching progresses.
    Type: Application
    Filed: May 17, 2006
    Publication date: February 1, 2007
    Applicant: NATIONAL RESEARCH COUNCIL OF CANADA AND UNIVERSITY OF ALBERTA
    Inventors: Mohamed Rezeq, Jason Pitters, Robert Wolkow