Patents by Inventor William Moffat

William Moffat 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: 12136991
    Abstract: An aerial vehicle is described. The aerial vehicle comprises a communications system comprising an antenna and a processor coupled to the antenna, the processor being configured to establish a cellular network for transferring data with a mobile device.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: November 5, 2024
    Assignee: Raytheon Systems Limited
    Inventor: William Moffat
  • Patent number: 11367640
    Abstract: A process chamber system adapted for both vacuum process steps and steps at pressures higher than atmospheric pressure. The chamber door may utilize a double door seal which allows for high vacuum in the gap between the seals such that the sealing force provided by the high vacuum in the seal gap is higher than the opposing forces due to the pressure inside the chamber and the weight of the components.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: June 21, 2022
    Assignee: Yield Engineering Systems, Inc.
    Inventors: William Moffat, Craig Walter McCoy
  • Publication number: 20220190909
    Abstract: An aerial vehicle is described. The aerial vehicle comprises a communications system comprising an antenna and a processor coupled to the antenna, the processor being configured to establish a cellular network for transferring data with a mobile device.
    Type: Application
    Filed: December 14, 2021
    Publication date: June 16, 2022
    Inventor: William Moffat
  • Publication number: 20210013013
    Abstract: A device and method of spreading plasma which allows for plasma etching over a larger range of process chamber pressures. A plasma source, such as a linear inductive plasma source, may be choked to alter back pressure within the plasma source. The plasma may then be spread around a deflecting disc which spreads the plasma under a dome which then allows for very even plasma etch rates across the surface of a substrate. The apparatus may include a linear inductive plasma source above a plasma spreading portion which spreads plasma across a horizontally configured wafer or other substrate. The substrate support may include heating elements adapted to enhance the etching.
    Type: Application
    Filed: May 31, 2020
    Publication date: January 14, 2021
    Inventors: William Moffat, Craig Walter McCoy
  • Patent number: 10840068
    Abstract: A device and method of spreading plasma which allows for plasma etching over a larger range of process chamber pressures. A plasma source, such as a linear inductive plasma source, may be choked to alter back pressure within the plasma source. The plasma may then be spread around a deflecting disc which spreads the plasma under a dome which then allows for very even plasma etch rates across the surface of a substrate. The apparatus may include a linear inductive plasma source above a plasma spreading portion which spreads plasma across a horizontally configured wafer or other substrate. The substrate support may include heating elements adapted to enhance the etching.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: November 17, 2020
    Assignee: Yield Engineering Systems, Inc.
    Inventors: William Moffat, Craig Walter McCoy
  • Publication number: 20200234986
    Abstract: A process chamber system adapted for both vacuum process steps and steps at pressures higher than atmospheric pressure. The chamber door may utilize a double door seal which allows for high vacuum in the gap between the seals such that the sealing force provided by the high vacuum in the seal gap is higher than the opposing forces due to the pressure inside the chamber and the weight of the components.
    Type: Application
    Filed: October 24, 2019
    Publication date: July 23, 2020
    Inventors: William Moffat, Craig Walter McCoy
  • Publication number: 20200013591
    Abstract: A device and method of spreading plasma which allows for plasma etching over a larger range of process chamber pressures. A plasma source, such as a linear inductive plasma source, may be choked to alter back pressure within the plasma source. The plasma may then be spread around a deflecting disc which spreads the plasma under a dome which then allows for very even plasma etch rates across the surface of a substrate. The apparatus may include a linear inductive plasma source above a plasma spreading portion which spreads plasma across a horizontally configured wafer or other substrate. The substrate support may include heating elements adapted to enhance the etching.
    Type: Application
    Filed: February 14, 2019
    Publication date: January 9, 2020
    Inventors: WILLIAM MOFFAT, Craig Walter McCoy
  • Patent number: 10490431
    Abstract: A process chamber system adapted for both vacuum process steps and steps at pressures higher than atmospheric pressure. The chamber door may utilize a double door seal which allows for high vacuum in the gap between the seals such that the sealing force provided by the high vacuum in the seal gap is higher than the opposing forces due to the pressure inside the chamber and the weight of the components.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: November 26, 2019
    Assignee: Yield Engineering Systems, Inc.
    Inventors: William Moffat, Craig Walter McCoy
  • Publication number: 20190314738
    Abstract: A trap system adapted to trap polyimide or other vapors exiting from a process chamber. The vapors are routed from the process chamber through a heated exit line at low pressure and then cooled, resulting in condensation at a selected location. The condensed vapors accumulate in a liquid trap. A method of condensing polymer vapors in vacuum exit lines of process chambers, where the flow which may have vaporized polymer vapor is cooled to enhance condensation at a chosen location. The liquid trap can be emptied and replaced, resulting in the removal of the condensed liquid. The chamber exit lines are protected from condensation build up.
    Type: Application
    Filed: November 13, 2018
    Publication date: October 17, 2019
    Inventors: WILLIAM MOFFAT, CRAIG WALTER MCCOY
  • Publication number: 20190287835
    Abstract: A device and method for alignment of substrates on a substrate support, such as a heated chuck. An alignment ring may be placed over the substrate support to maintain placement and alignment during processing, such as plasma processing. The aligned substrate may then be accessed by a robotic arm, as it is in a pre-determined location. Alignment rings of different interior diameters may be used for different substrate sizes. The alignment rings may be inserted onto and removed from the process oven containing the substrate support through the substrate access port, without the need to fully open the process chamber.
    Type: Application
    Filed: January 31, 2019
    Publication date: September 19, 2019
    Inventors: WILLIAM MOFFAT, CRAIG WALTER MCCOY
  • Patent number: 10319612
    Abstract: A process for the drying, and subsequent imidization, of polyimide precursors which minimizes or eliminates voids and which minimizes or eliminates discoloration. The process uses a sequential set of descending pressure operations that allow for time efficient processing of wafers. The set of descending pressure operations are interspersed with evacuation processes using heated gasses, which combine heating and byproduct evacuation. The process results in layers with reduced or eliminated voiding, discoloration, and solvent retention.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: June 11, 2019
    Assignee: Yield Engineering Systems, Inc.
    Inventor: William Moffat
  • Publication number: 20190109022
    Abstract: A process for the drying, and subsequent imidization, of polyimide precursors which minimizes or eliminates voids and which minimizes or eliminates discoloration. The process uses a sequential set of descending pressure operations that allow for time efficient processing of wafers. The set of descending pressure operations are interspersed with evacuation processes using heated gasses, which combine heating and byproduct evacuation. The process results in layers with reduced or eliminated voiding, discoloration, and solvent retention.
    Type: Application
    Filed: October 29, 2018
    Publication date: April 11, 2019
    Inventor: WILLIAM MOFFAT
  • Patent number: 10147617
    Abstract: A process for the drying, and subsequent imidization, of polyimide precursors which minimizes or eliminates voids and which minimizes or eliminates discoloration. The process uses a sequential set of descending pressure operations that allow for time efficient processing of wafers. The set of descending pressure operations are interspersed with evacuation processes using heated gasses, which combine heating and byproduct evacuation. The process results in layers with reduced or eliminated voiding, discoloration, and solvent retention.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: December 4, 2018
    Assignee: Yield Engineering Systems, Inc.
    Inventor: William Moffat
  • Publication number: 20180308668
    Abstract: A device and method of spreading plasma which allows for plasma etching over a larger range of process chamber pressures. A plasma source, such as a linear inductive plasma source, may be choked to alter back pressure within the plasma source. The plasma may then be spread around a deflecting disc which spreads the plasma under a dome which then allows for very even plasma etch rates across the surface of a substrate. The apparatus may include a linear inductive plasma source above a plasma spreading portion which spreads plasma across a horizontally configured wafer or other substrate. The substrate support may include heating elements adapted to enhance the etching.
    Type: Application
    Filed: February 15, 2018
    Publication date: October 25, 2018
    Inventors: WILLIAM MOFFAT, Craig Walter McCoy
  • Publication number: 20180308732
    Abstract: A process chamber system adapted for both vacuum process steps and steps at pressures higher than atmospheric pressure. The chamber door may utilize a double door seal which allows for high vacuum in the gap between the seals such that the sealing force provided by the high vacuum in the seal gap is higher than the opposing forces due to the pressure inside the chamber and the weight of the components.
    Type: Application
    Filed: March 12, 2018
    Publication date: October 25, 2018
    Inventors: WILLIAM MOFFAT, CRAIG WALTER MCCOY
  • Publication number: 20180292122
    Abstract: A trap system adapted to trap polyimide or other vapors exiting from a process chamber. The vapors are routed from the process chamber through a heated exit line at low pressure and then cooled, resulting in condensation at a selected location. The condensed vapors accumulate in a liquid trap. A method of condensing polymer vapors in vacuum exit lines of process chambers, where the flow which may have vaporized polymer vapor is cooled to enhance condensation at a chosen location. The liquid trap can be emptied and replaced, resulting in the removal of the condensed liquid. The chamber exit lines are protected from condensation build up.
    Type: Application
    Filed: November 14, 2017
    Publication date: October 11, 2018
    Inventors: WILLIAM MOFFAT, CRAIG WALTER MCCOY
  • Publication number: 20170213748
    Abstract: A process for the drying, and subsequent imidization, of polyimide precursors which minimizes or eliminates voids and which minimizes or eliminates discoloration. The process uses a sequential set of descending pressure operations that allow for time efficient processing of wafers. The set of descending pressure operations are interspersed with evacuation processes using heated gasses, which combine heating and byproduct evacuation. The process results in layers with reduced or eliminated voiding, discoloration, and solvent retention.
    Type: Application
    Filed: July 11, 2016
    Publication date: July 27, 2017
    Inventor: WILLIAM MOFFAT
  • Publication number: 20070258712
    Abstract: An apparatus and method for the development of photoresist utilizing vaporized developer. The substrate may be cooled such that the vaporized developer condenses on the substrate and in the features developing in the substrate. An ultrasonic vibrator may be used to vibrate the substrate to dispel the condensed vapors in the features.
    Type: Application
    Filed: May 3, 2006
    Publication date: November 8, 2007
    Inventor: William Moffat
  • Publication number: 20070231485
    Abstract: A process chamber for the coating of substrates with silanes with a double door seal. The double door seal may have a cavity between the seals which may be evacuated or pressurized, including with an inert gas. An apparatus for the coating of substrates comprising a process oven, a gas plasma subsystem, a metered chemical withdrawal subsystem, a vacuum subsystem, a vaporization subsystem, and a double door seal. A process oven utilizing a double sealed door with pressurized inert gas between the seals to reduce oxygen contamination and risks associated with silane processes.
    Type: Application
    Filed: October 23, 2006
    Publication date: October 4, 2007
    Inventors: William Moffat, Craig McCoy, Stuart Allen
  • Patent number: RE49802
    Abstract: A process for the drying, and subsequent imidization, of polyimide precursors which minimizes or eliminates voids and which minimizes or eliminates discoloration. The process uses a sequential set of descending pressure operations that allow for time efficient processing of wafers. The set of descending pressure operations are interspersed with evacuation processes using heated gasses, which combine heating and byproduct evacuation. The process results in layers with reduced or eliminated voiding, discoloration, and solvent retention.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: January 16, 2024
    Assignee: YIELD ENGINEERING SYSTEMS, INC.
    Inventor: William Moffat