Patents Assigned to Iosil Energy Corporation
  • Method and apparatus for improving the efficiency of purification and deposition of polycrystalline silicon
    Patent number: 8580205
    Abstract: Methods and apparatus for the commercial-scale production of purified polycrystalline silicon granules with one or more tailored levels of n- and p-type impurities from an impure silicon source such as, for example, metallurgical-grade silicon.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: November 12, 2013
    Assignee: Iosil Energy Corporation
    Inventor: John Allan Fallavollita
  • Methods and Apparatus for Recovery of Silicon and Silicon Carbide from Spent Wafer-Sawing Slurry
    Publication number: 20130236387
    Abstract: Methods, systems, and apparatus are disclosed herein for recovery of high-purity silicon, silicon carbide and PEG from a slurry produced during a wafer cutting process. A silicon-containing material can be processed for production of a silicon-rich composition. Silicon carbide and PEG recovered from the silicon-containing material can be used to form a wafer-saw cutting fluid. The silicon-rich composition can be reacted with iodine containing compounds that can be purified and/or used to form deposited silicon of high purity. The produced silicon can be used in the photovoltaic industry or semiconductor industry.
    Type: Application
    Filed: December 18, 2012
    Publication date: September 12, 2013
    Applicant: IOSIL ENERGY CORPORATION
    Inventor: John Allan Fallavollita
  • Methods and apparatus for recovery of silicon and silicon carbide from spent wafer-sawing slurry
    Patent number: 8354088
    Abstract: Methods, systems, and apparatus are disclosed herein for recovery of high-purity silicon, silicon carbide and PEG from a slurry produced during a wafer cutting process. A silicon-containing material can be processed for production of a silicon-rich composition. Silicon carbide and PEG recovered from the silicon-containing material can be used to form a wafer-saw cutting fluid. The silicon-rich composition can be reacted with iodine containing compounds that can be purified and/or used to form deposited silicon of high purity. The produced silicon can be used in the photovoltaic industry or semiconductor industry.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: January 15, 2013
    Assignee: Iosil Energy Corporation
    Inventor: John Allan Fallavollita
  • METHODS AND APPARATUS FOR RECOVERY OF SILICON AND SILICON CARBIDE FROM SPENT WAFER-SAWING SLURRY
    Publication number: 20110280785
    Abstract: Methods, systems, and apparatus are disclosed herein for recovery of high-purity silicon, silicon carbide and PEG from a slurry produced during a wafer cutting process. A silicon-containing material can be processed for production of a silicon-rich composition. Silicon carbide and PEG recovered from the silicon-containing material can be used to form a wafer-saw cutting fluid. The silicon-rich composition can be reacted with iodine containing compounds that can be purified and/or used to form deposited silicon of high purity. The produced silicon can be used in the photovoltaic industry or semiconductor industry.
    Type: Application
    Filed: July 1, 2011
    Publication date: November 17, 2011
    Applicant: IOSIL ENERGY CORPORATION
    Inventor: John Allan Fallavollita
  • Method and Apparatus for Improving the Efficiency of Purification and Deposition of Polycrystalline Silicon
    Publication number: 20110023778
    Abstract: Methods and apparatus for the commercial-scale production of purified polycrystalline silicon granules with one or more tailored levels of n- and p-type impurities from an impure silicon source such as, for example, metallurgical-grade silicon.
    Type: Application
    Filed: October 13, 2010
    Publication date: February 3, 2011
    Applicant: IOSIL ENERGY CORPORATION
    Inventor: John Allan Fallavollita
  • Method and apparatus for improving the efficiency of purification and deposition of polycrystalline silicon
    Patent number: 7820126
    Abstract: Methods and apparatus for the commercial-scale production of purified polycrystalline silicon granules with one or more tailored levels of n- and p-type impurities from an impure silicon source such as, for example, metallurgical-grade silicon.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: October 26, 2010
    Assignee: Iosil Energy Corporation
    Inventor: John Allan Fallavollita