Patents by Inventor Daniel Leguen

Daniel Leguen 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).

  • Gas-phase process for the production of an epitaxial layer of indum phosphide
    Patent number: 4220488
    Abstract: A process and an apparatus for epitaxy in a gaseous phase, producing thin and homogeneous layers of monocrystalline indium phosphide. The process comprises two steps. In the first step, the phosphine is decomposed in a pyrolysis chamber which extends through a kiln in accordance with the reaction: ##EQU1## Thereafter, in a second step, the phosphorus is reacted with triethylindium in an atmosphere of hydrogen and nitrogen: ##EQU2## The residual gases are drawn off by a vacuum pump.
    Type: Grant
    Filed: March 6, 1979
    Date of Patent: September 2, 1980
    Assignee: Thomson-CSF
    Inventors: Jean-Pascal Duchemin, Daniel Leguen, Michel Bonnet, Francois Koelsch, Gerard Beuchet