Patents by Inventor Paul M. Garavaglia

Paul M. Garavaglia 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).

  • Patent number: 4309241
    Abstract: Apparatus and process for producing electronic-grade semiconductor bodies are disclosed wherein continuously-pulled slim rod which can be formed in situ from the reaction of a seed crystal and a molten semiconductor material source, is pulled into and through a chemical vapor deposition chamber, having a gas curtain along the inner wall, the slim rod surface being preheated before entry into the deposition chamber where it is simultaneously exposed to focused heating and thermally decomposable gaseous compounds in order to provide suitable surface reaction conditions on the slim rod for the decomposition of the gaseous compounds which results in deposition growth upon the surface of the rod.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: January 5, 1982
    Assignee: Monsanto Company
    Inventors: Paul M. Garavaglia, Henry W. Gutsche
  • Patent number: 3986905
    Abstract: In a high temperature solid-solid diffusion process for diffusing impurities into a semiconductor body from a dopant source material, semiconductor surface attack is prevented by the presence of a layer comprising particles of a material substantially inert to the diffusion between the semiconductor body and dopant source material. Uniform deep regions and/or regions of high conductivity can be obtained, if desired.
    Type: Grant
    Filed: December 16, 1974
    Date of Patent: October 19, 1976
    Assignee: Monsanto Company
    Inventor: Paul M. Garavaglia