Patents by Inventor Wenjun L. Chinn

Wenjun L. Chinn 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).

  • Reverse circulation fluidized bed reactor for granular polysilicon production
    Patent number: 9428830
    Abstract: A reverse fluidized bed reactor (FBR) is separated by a thermally insulating vertical divider into a pre-reaction heating zone, a reaction zone, and a dehydrogenation zone. The dehydrogenation zone can be distinct, or the heating zone can serve as the dehydrogenation zone. Particles of polysilicon circulate upward through the heating zone and into the top of the reaction zone, where deposition of silicon occurs, and the grown particles slowly settle until they reenter the bottom of the pre-reaction heating zone. Dust formation, wall deposition, and hydrogen content in the product silicon particles are thereby minimized.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: August 30, 2016
    Assignee: GTAT Corporation
    Inventors: Wenjun L Chinn, F. Scott Fahrenbruck, Shawn D Skinner, Laura E Moran, Jeffrey C. Gum
  • REVERSE CIRCULATION FLUIDIZED BED REACTOR FOR GRANULAR POLYSILICON PRODUCTION
    Publication number: 20160002773
    Abstract: A reverse fluidized bed reactor (FBR) is separated by a thermally insulating vertical divider into a pre-reaction heating zone, a reaction zone, and a dehydrogenation zone. The dehydrogenation zone can be distinct, or the heating zone can serve as the dehydrogenation zone. Particles of polysilicon circulate upward through the heating zone and into the top of the reaction zone, where deposition of silicon occurs, and the grown particles slowly settle until they reenter the bottom of the pre-reaction heating zone. Dust formation, wall deposition, and hydrogen content in the product silicon particles are thereby minimized.
    Type: Application
    Filed: July 2, 2014
    Publication date: January 7, 2016
    Inventors: Wenjun L. Chinn, F. Scott Fahrenbruck, Shawn D. Skinner, Laura E. Moran, Jeffrey C. Gum