Patents by Inventor Leigh T. Florez

Leigh T. Florez 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).

  • Optical control of deposition of crystal monolayers
    Patent number: 4931132
    Abstract: A method and apparatus for epitaxial growth of precisely one monolayer. The growth is by organometallic chemical vapor deposition in which the substrate is alternately exposed to the anion and cation of a III-V compound. During deposition of the cation, for instance Ga or Al, reflectance difference spectroscopy is performed to obtain the difference of reflected light beams polarized in orthogonal directions. A growth of a monolayer and even of a partial monolayer can be monitored in real time.
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: June 5, 1990
    Assignee: Bell Communications Research, Inc.
    Inventors: David E. Aspnes, Rajaram Bhat, Etienne G. Colas, Leigh T. Florez, James P. Harbison, Amabrose A. Studna