Patents by Inventor Roger Dale Spencer, Jr.

Roger Dale Spencer, Jr. 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).

  • Flowable chips and methods for the preparation and use of same, and apparatus for use in the methods
    Patent number: 9909231
    Abstract: A method for recharging a crucible with polycrystalline silicon comprises adding flowable chips to a crucible used in a Czochralski-type process. Flowable chips are polycrystalline silicon particles made from polycrystalline silicon prepared by a chemical vapor deposition process, and flowable chips have a controlled particle size distribution, generally nonspherical morphology, low levels of bulk impurities, and low levels of surface impurities. Flowable chips can be added to the crucible using conventional feeder equipment, such as vibration feeder systems and canister feeder systems.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: March 6, 2018
    Assignee: HEMLOCK SEMICONDUCTOR OPERATIONS LLC
    Inventors: Arvid Neil Arvidson, Terence Lee Horstman, Michael John Molnar, Chris Tim Schmidt, Roger Dale Spencer, Jr.
  • Flowable Chips and Methods for the Preparation and Use of Same, and Apparatus for Use in the Methods
    Publication number: 20150090178
    Abstract: A method for recharging a crucible with polycrystalline silicon comprises adding flowable chips to a crucible used in a Czochralski-type process. Flowable chips are polycrystalline silicon particles made from polycrystalline silicon prepared by a chemical vapor deposition process, and flowable chips have a controlled particle size distribution, generally nonspherical morphology, low levels of bulk impurities, and low levels of surface impurities. Flowable chips can be added to the crucible using conventional feeder equipment, such as vibration feeder systems and canister feeder systems.
    Type: Application
    Filed: December 3, 2014
    Publication date: April 2, 2015
    Inventors: ARVID NEIL ARVIDSON, TERENCE LEE HORSTMAN, MICHAEL JOHN MOLNAR, CHRIS Tim SCHMIDT, ROGER DALE SPENCER, Jr.
  • Flowable chips and methods for the preparation and use of same, and apparatus for use in the methods
    Patent number: 8926749
    Abstract: A method for recharging a crucible with polycrystalline silicon comprises adding flowable chips to a crucible used in a Czochralski-type process. Flowable chips are polycrystalline silicon particles made from polycrystalline silicon prepared by a chemical vapor deposition process, and flowable chips have a controlled particle size distribution, generally nonspherical morphology, low levels of bulk impurities, and low levels of surface impurities. Flowable chips can be added to the crucible using conventional feeder equipment, such as vibration feeder systems and canister feeder systems.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: January 6, 2015
    Assignee: Hemlock Semi Conductor
    Inventors: Arvid Neil Arvidson, Terence Lee Horstman, Michael John Molnar, Chris Tim Schmidt, Roger Dale Spencer, Jr.
  • Flowable Chips and Methods for the Preparation and Use of Same, and Apparatus for Use in the Methods
    Publication number: 20110286906
    Abstract: A method for recharging a crucible with polycrystalline silicon comprises adding flowable chips to a crucible used in a Czochralski-type process. Flowable chips are polycrystalline silicon particles made from polycrystalline silicon prepared by a chemical vapor deposition process, and flowable chips have a controlled particle size distribution, generally nonspherical morphology, low levels of bulk impurities, and low levels of surface impurities. Flowable chips can be added to the crucible using conventional feeder equipment, such as vibration feeder systems and canister feeder systems.
    Type: Application
    Filed: August 3, 2011
    Publication date: November 24, 2011
    Inventors: Arvid Neil Arvidson, Terence Lee Horstman, Michael John Molnar, Chris Tim Schmidt, Roger Dale Spencer, JR.
  • Flowable chips and methods for the preparation and use of same, and apparatus for use in the methods
    Patent number: 8021483
    Abstract: A method for recharging a crucible with polycrystalline silicon comprises adding flowable chips to a crucible used in a Czochralski-type process. Flowable chips are polycrystalline silicon particles made from polycrystalline silicon prepared by a chemical vapor deposition process, and flowable chips have a controlled particle size distribution, generally nonspherical morphology, low levels of bulk impurities, and low levels of surface impurities. Flowable chips can be added to the crucible using conventional feeder equipment, such as vibration feeder systems and canister feeder systems.
    Type: Grant
    Filed: November 14, 2002
    Date of Patent: September 20, 2011
    Assignee: Hemlock Semiconductor Corporation
    Inventors: Arvid Neil Arvidson, Terence Lee Horstman, Michael John Molnar, Chris Tim Schmidt, Roger Dale Spencer, Jr.
  • Roll crusher to produce high purity polycrystalline silicon chips
    Patent number: 7270706
    Abstract: A single roll crusher for comminuting high purity materials includes a roll with teeth spaced around the circumference of the roll. The roll is rotatably mounted inside a housing. The housing has a top with an entrance port, sides, and bottom with an exit port. The roll, teeth, and at least the inside surfaces of the top, sides, and bottom are fabricated from a material of construction that minimizes contamination of silicon. The material of construction may be tungsten carbide with a cobalt binder. The single roll crusher is used for processing polycrystalline silicon.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: September 18, 2007
    Assignee: Dow Corning Corporation
    Inventors: Douglas Andrejewski, Thomas Dubay, Terence Lee Horstman, Roger Dale Spencer, Jr.