Patents by Inventor Wenjun Qin

Wenjun Qin 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: 10513438
    Abstract: A method is provided for stabilizing filaments in a chemical vapor deposition (CVD) reactor. The method includes providing the pair of filaments, and connecting the pair of filaments with at least one stabilizer. The stabilizer may include an electronically insulating material.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: December 24, 2019
    Assignee: OCI COMPANY LTD.
    Inventors: Wenjun Qin, Chad Fero, Aaron D. Rhodes, Jeffrey C. Gum
  • Patent number: 10494714
    Abstract: The present invention provides chucks having a well that supports rods produced during chemical vapor deposition. The chucks can utilize slats and windows around the well up to which the rod can grow and become supported.
    Type: Grant
    Filed: January 3, 2011
    Date of Patent: December 3, 2019
    Assignee: OCI COMPANY LTD.
    Inventor: Wenjun Qin
  • Publication number: 20170320746
    Abstract: In various embodiments, systems, methods, and apparatus are provided for stabilizing filaments in a chemical vapor deposition (CVD) reactor system. A system includes a base plate having a plurality of electrical connections, a pair of filaments extending from the base plate, and a stabilizer connecting the pair of filaments. Each filament is in electrical contact with, and defines a conductive path between, the two electrical connections. A method of stabilizing the filaments includes providing the pair of filaments, and connecting the pair of filaments with at least one stabilizer. The stabilizer may include an electrically insulating material.
    Type: Application
    Filed: June 5, 2017
    Publication date: November 9, 2017
    Inventors: Wenjun Qin, Chad Fero, Aaron D. Rhodes, Jeffrey C. Gum
  • Patent number: 9701541
    Abstract: In various embodiments, systems, methods, and apparatus are provided for stabilizing filaments in a chemical vapor deposition (CVD) reactor system. A system includes a base plate having a plurality of electrical connections, a pair of filaments extending from the base plate, and a stabilizer connecting the pair of filaments. Each filament is in electrical contact with, and defines a conductive path between, the two electrical connections. A method of stabilizing the filaments includes providing the pair of filaments, and connecting the pair of filaments with at least one stabilizer. The stabilizer may include an electrically insulating material.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: July 11, 2017
    Inventors: Wenjun Qin, Chad Fero, Aaron Dean Rhodes, Jeffrey C. Gum
  • Patent number: 9162898
    Abstract: Systems and methods for removing boron-containing contaminants from a composition comprising trichlorosilane to form a purified product comprising trichlorosilane are disclosed. Purification columns and devices, having various locations of inlet and outlet ports, are fluidly connected to each other in order to remove various types of boron species and other impurities present in TCS.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: October 20, 2015
    Assignee: GTAT Corporation
    Inventors: Bruce Hazeltine, Scott Fahrenbruck, Wenjun Qin
  • Patent number: 8961689
    Abstract: Systems and methods for the production of polysilicon or another material via chemical vapor deposition in a reactor are provided in which gas is distributed using a silicon standpipe. The silicon standpipe can be attached to the reactor system using a nozzle coupler such that precursor gases may be injected to various portions of the reaction chamber. As a result, gas flow can be improved throughout the reactor chamber, which can increase the yield of polysilicon, improve the quality of polysilicon, and reduce the consumption of energy.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: February 24, 2015
    Assignee: GTAT Corporation
    Inventor: Wenjun Qin
  • Publication number: 20140170337
    Abstract: In various embodiments, systems, methods, and apparatus are provided for stabilizing filaments in a chemical vapor deposition (CVD) reactor system. A system includes a base plate having a plurality of electrical connections, a pair of filaments extending from the base plate, and a stabilizer connecting the pair of filaments. Each filament is in electrical contact with, and defines a conductive path between, the two electrical connections. A method of stabilizing the filaments includes providing the pair of filaments, and connecting the pair of filaments with at least one stabilizer. The stabilizer may include an electrically insulating material.
    Type: Application
    Filed: December 19, 2012
    Publication date: June 19, 2014
    Applicant: GTAT Corporation
    Inventors: Wenjun Qin, Chad Fero, Aaron Dean Rhodes, Jeffrey C. Gum
  • Publication number: 20130121907
    Abstract: Systems and methods for removing boron-containing contaminants from a composition comprising trichlorosilane to form a purified product comprising trichlorosilane are disclosed. Purification columns and devices, having various locations of inlet and outlet ports, are fluidly connected to each other in order to remove various types of boron species and other impurities present in TCS.
    Type: Application
    Filed: November 2, 2012
    Publication date: May 16, 2013
    Applicant: GTAT Corporation
    Inventors: Bruce Hazeltine, Scott Fahrenbruck, Wenjun Qin
  • Publication number: 20120171845
    Abstract: The present invention provides chucks having a well that supports rods produced during chemical vapor deposition. The chucks can utilize slats and windows around the well up to which the rod can grow and become supported.
    Type: Application
    Filed: January 3, 2011
    Publication date: July 5, 2012
    Applicant: GT SOLAR INCORPORATED
    Inventor: Wenjun Qin
  • Publication number: 20110229638
    Abstract: A method for making polycrystalline silicon from a gas comprising at least one silicon precursor compound is disclosed. The method can be effected from a gas comprising a polycrystalline silicon precursor compound in a chemical vapor deposition system by establishing a first flow pattern of the gas in a chemical vapor deposition reaction chamber, promoting reaction of at least a portion of the at least one precursor compound from the gas having the first flow pattern into polycrystalline silicon, establishing a second flow pattern of the gas in the reaction chamber, and promoting reaction of at least a portion of the at least one precursor compound from the gas having the second flow pattern into polycrystalline silicon.
    Type: Application
    Filed: March 18, 2011
    Publication date: September 22, 2011
    Applicant: GT SOLAR INCORPORATED
    Inventor: Wenjun QIN
  • Publication number: 20110129621
    Abstract: Systems and methods for the production of polysilicon or another material via chemical vapor deposition in a reactor are provided in which gas is distributed using a silicon standpipe. The silicon standpipe can be attached to the reactor system using a nozzle coupler such that precursor gases may be injected to various portions of the reaction chamber. As a result, gas flow can be improved throughout the reactor chamber, which can increase the yield of polysilicon, improve the quality of polysilicon, and reduce the consumption of energy.
    Type: Application
    Filed: March 26, 2009
    Publication date: June 2, 2011
    Applicant: GT SOLAR, INCORPORATED
    Inventor: Wenjun Qin