Patents by Inventor John Daugherty

John Daugherty 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).

  • Publication number: 20260088260
    Abstract: A component for use in a plasma processing chamber system is provided. A component body has a plasma facing surface. The plasma facing surface comprises a pyrochlore, comprising at least one of zirconium and hafnium and at least one of lanthanum (La), samarium (Sm), yttrium (Y), erbium (Er), cerium (Ce), gadolinium (Gd), ytterbium (Yb), and neodymium (Nd).
    Type: Application
    Filed: August 22, 2023
    Publication date: March 26, 2026
    Inventors: David Joseph WETZEL, Lin XU, Lei LIU, Douglas DETERT, Amir A. YASSERI, John DAUGHERTY
  • Patent number: 12544809
    Abstract: A method for conditioning a component of a wafer processing chamber is provided. The component is placed in an ultrasonic conditioning solution in an ultrasonic solution tank. Ultrasonic energy is applied through the ultrasonic conditioning solution to the component to clean the component. The component is submerged in a megasonic conditioning solution in a tank. Megasonic energy is applied through the megasonic conditioning solution to the component to clean the component.
    Type: Grant
    Filed: July 29, 2024
    Date of Patent: February 10, 2026
    Assignee: Lam Research Corporation
    Inventors: Amir A. Yasseri, Hong Shih, John Daugherty, Duane Outka, Lin Xu, Armen Avoyan, Cliff La Croix, Girish M Hundi
  • Publication number: 20250372351
    Abstract: A component for use in a semiconductor processing chamber is provided. A component body has a process facing surface, wherein the component body comprises at least one of iron, iron alloy, nickel, nickel alloy, titanium, and titanium alloy. A coating is over the process facing surface, wherein the coating comprises at least one of a metal oxide, a metal fluoride, and a metal oxyfluoride, wherein the coating is at least 99% by weight pure and has a porosity of less than 0.1%.
    Type: Application
    Filed: October 9, 2023
    Publication date: December 4, 2025
    Inventors: David Joseph WETZEL, Eric A. PAPE, Lin XU, John DAUGHERTY
  • Publication number: 20250357171
    Abstract: A chuck system for supporting a substrate in a plasma processing chamber is provided. A base plate comprises a substrate support region and a shoulder surrounding the substrate support region. A protective coating is on a surface of the base plate, wherein the protective coating covers at least part of the shoulder. A layer of a silane coupling agent is on the protective coating.
    Type: Application
    Filed: May 31, 2023
    Publication date: November 20, 2025
    Inventors: Lin XU, Satish SRINIVASAN, John DAUGHERTY, Harmeet SINGH
  • Publication number: 20250208022
    Abstract: An apparatus for measuring contamination on a critical surface of a part is provided. A vessel for mounting the part is provided. An inert gas source is in fluid connection with the vessel and adapted to provide an inert gas to the vessel. At least one diffuser receives the inert gas from the vessel, wherein the critical surface of the part is exposed to the inert gas when the part is mounted in the vessel. At least one analyzer is adapted to receive inert gas from the at least one diffuser and measures contaminants in the inert gas.
    Type: Application
    Filed: March 10, 2025
    Publication date: June 26, 2025
    Inventors: Amir A. YASSERI, Girish M. HUNDI, John Michael KERNS, Duane OUTKA, John DAUGHERTY, Cliff LA CROIX
  • Publication number: 20250191893
    Abstract: An apparatus for plasma processing a wafer at cryogenic temperatures is provided. A wafer support is adapted to support a wafer within a plasma processing chamber. A gas source provides gas to the plasma processing chamber. A cooling system provides cooling the wafer support. A component comprises a spark plasma sintered body comprising a sintering powder comprising at least one of a doped silicon carbide powder, wherein a dopant is at least one of aluminum (Al), yttrium (Y), tungsten (W), tantalum (Ta), tungsten carbide (WC), tantalum carbide (TaC), and aluminum-silicon carbide (AlSiC), or a doped carbide, wherein the carbide is at least one of boron carbide (B4C), WC, or TaC and wherein a dopant is at least one of B, W, molybdenum (Mo), Al, and Ta, or pure B4C, WC, TaC, W, or Mo.
    Type: Application
    Filed: March 21, 2023
    Publication date: June 12, 2025
    Inventors: Lin XU, Satish SRINIVASAN, Harmeet SINGH, John DAUGHERTY, Pankaj HAZARIKA
  • Publication number: 20250140528
    Abstract: A component of a plasma processing chamber is provided. A yttria coating is formed on a surface of a component body, wherein the yttria coating is deposited by aerosol deposition and is annealed, wherein the yttria coating is at least 95% pure yttria by weight.
    Type: Application
    Filed: May 17, 2023
    Publication date: May 1, 2025
    Inventors: Jeremiah Michael DEDERICK, Satish SRINIVASAN, Lin XU, John DAUGHERTY
  • Patent number: 12270748
    Abstract: An apparatus for measuring contamination on a critical surface of a part is provided. A vessel for mounting the part is provided. An inert gas source is in fluid connection with the vessel and adapted to provide an inert gas to the vessel. At least one diffuser receives the inert gas from the vessel, wherein the critical surface of the part is exposed to the inert gas when the part is mounted in the vessel. At least one analyzer is adapted to receive inert gas from the at least one diffuser and measures contaminants in the inert gas.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: April 8, 2025
    Assignee: Lam Research Corporation
    Inventors: Amir A. Yasseri, Girish M. Hundi, John Michael Kerns, Duane Outka, John Daugherty, Cliff La Croix
  • Patent number: 12249490
    Abstract: A component of a plasma processing chamber having at least one plasma facing surface of the component comprises single crystal metal oxide material. The component can be machined from a single crystal metal oxide ingot. Suitable single crystal metal oxides include spinel, yttrium oxide, and yttrium aluminum garnet (YAG). A single crystal metal oxide can be machined to form a gas injector of a plasma processing chamber.
    Type: Grant
    Filed: October 21, 2020
    Date of Patent: March 11, 2025
    Assignee: Lam Research Corporation
    Inventors: Lin Xu, Douglas Detert, John Daugherty, Pankaj Hazarika, Satish Srinivasan, Nash W. Anderson, John Michael Kerns, Robin Koshy, David Joseph Wetzel, Lei Liu, Eric A. Pape
  • Patent number: 12198902
    Abstract: An apparatus adapted for use in a plasma processing chamber is provided. An aluminum body with at least one surface is provided. An aluminum oxide containing aerosol deposition coating is disposed over the at least one surface of the aluminum body. An yttrium containing aerosol deposition coating is disposed over the aluminum oxide containing aerosol deposition coating.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: January 14, 2025
    Assignee: Lam Research Corporation
    Inventors: Lin Xu, John Daugherty, Satish Srinivasan, David Joseph Wetzel
  • Publication number: 20240383017
    Abstract: A method for conditioning a component of a wafer processing chamber is provided. The component is placed in an ultrasonic conditioning solution in an ultrasonic solution tank. Ultrasonic energy is applied through the ultrasonic conditioning solution to the component to clean the component. The component is submerged in a megasonic conditioning solution in a tank. Megasonic energy is applied through the megasonic conditioning solution to the component to clean the component.
    Type: Application
    Filed: July 29, 2024
    Publication date: November 21, 2024
    Inventors: Amir A. YASSERI, Hong SHIH, John DAUGHERTY, Duane OUTKA, Lin XU, Armen AVOYAN, Cliff LA CROIX, Girish M HUNDI
  • Patent number: 12129569
    Abstract: A method for making a component for use in a semiconductor processing chamber is provided. A component body is formed from a conductive material having a coefficient of thermal expansion of less than 10.0×10?6/K. A metal oxide layer is then disposed over a surface of the component body.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: October 29, 2024
    Assignee: Lam Research Corporation
    Inventors: Lin Xu, David Joseph Wetzel, John Daugherty, Hong Shih, Satish Srinivasan, Yuanping Song, Johnny Pham, Yiwei Song, Christopher Kimball
  • Patent number: 12072318
    Abstract: An apparatus for measuring contaminants on a surface of a component is provided. An extraction vessel for holding a measurement fluid has an opening adapted to form a meniscus using the measurement fluid. An actuator moves at least one of the extraction vessel and the component to a position where the meniscus is in contact with the surface of the component. A transducer is positioned to provide acoustic energy to the measurement fluid.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: August 27, 2024
    Assignee: Lam Research Corporation
    Inventors: Amir A. Yasseri, Duane Outka, Armen Avoyan, Kennet Cresencio Baylon, John Daugherty, Girish M. Hundi, Cliff La Croix
  • Patent number: 12064795
    Abstract: A method for conditioning a component of a wafer processing chamber is provided. The component is placed in an ultrasonic conditioning solution in an ultrasonic solution tank. Ultrasonic energy is applied through the ultrasonic conditioning solution to the component to clean the component. The component is submerged in a megasonic conditioning solution in a tank. Megasonic energy is applied through the megasonic conditioning solution to the component to clean the component.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: August 20, 2024
    Assignee: Lam Research Corporation
    Inventors: Amir A. Yasseri, Hong Shih, John Daugherty, Duane Outka, Lin Xu, Armen Avoyan, Cliff La Croix, Girish Hundi
  • Patent number: 11764086
    Abstract: A substrate processing system configured to process substrates includes a substrate transport assembly that encloses a controlled environment defined within a continuous transport volume and at least two process modules coupled to the substrate transport assembly. The substrate transport assembly is configured to transport substrates to and from the at least two process modules through the continuous transport volume. At least two gas boxes are configured to deliver gas mixtures to the at least two process modules. An exhaust duct configured to selectively evacuate the at least two process modules through the at least two gas boxes. Surfaces of the at least two gas boxes include perforations configured to allow gases to flow from the at least two gas boxes into the exhaust duct.
    Type: Grant
    Filed: July 8, 2022
    Date of Patent: September 19, 2023
    Assignee: LAM RESEARCH CORPORATION
    Inventors: David Trussell, John Daugherty, Christopher J. Pena, Michael C. Kellogg, Klay Kunkel, Richard H. Gould
  • Publication number: 20230215703
    Abstract: Sealing various machined component parts used in plasma etching chambers using an Atomic Layer Deposition (ALD) coating. By sealing the component parts with the ALD layer, surface erosion/etch caused by repeated exposure to plasma during workpiece fabrication is eliminated or significantly mitigated. As a result, unwanted particle generation, caused by erosion, is eliminated or significantly reduced, preventing contamination within the plasma etching chamber.
    Type: Application
    Filed: June 15, 2021
    Publication date: July 6, 2023
    Inventors: Robin KOSHY, Lin XU, John DAUGHERTY
  • Publication number: 20230092570
    Abstract: A method for making a component for use in a semiconductor processing chamber is provided. A component body is formed from a conductive material having a coefficient of thermal expansion of less than 10.0×10?6/K. A metal oxide layer is then disposed over a surface of the component body.
    Type: Application
    Filed: February 16, 2021
    Publication date: March 23, 2023
    Inventors: Lin XU, David Joseph WETZEL, John DAUGHERTY, Hong SHIH, Satish SRINIVASAN, Yuanping SONG, Johnny PHAM, Yiwei SONG, Christopher KIMBALL
  • Publication number: 20230088848
    Abstract: A component of a plasma processing chamber having a coating on at least one surface that comprises yttrium aluminum. The coating is an aerosol deposited coating from a powder mixture of an yttrium oxide powder and an aluminum-containing powder and having an yttrium to aluminum ratio of 4:1 to 1:4 by molar number. The coating can be annealed to form a porous ternary oxide.
    Type: Application
    Filed: January 21, 2021
    Publication date: March 23, 2023
    Inventors: Lin XU, David Joseph WETZEL, Satish SRINIVASAN, Robin KOSHY, John Michael KERNS, John DAUGHERTY
  • Publication number: 20230020387
    Abstract: A method for forming a coating on a component of a substrate processing system includes arranging the component in a processing chamber and applying a ceramic material to form the coating on one or more surfaces of the component. The ceramic material is comprised of a mixture including a rare earth oxide and having a grain size of less than 150 nm and is applied while a temperature within the processing chamber is less than 400° C. The coating has a thickness of less than 30 ?m. A heat treatment process is performed on the coated component in a heat treatment chamber. The heat treatment process includes increasing a temperature of the heat treatment chamber from a first temperature to a second temperature that does not exceed a melting temperature of the mixture over a first period and maintaining the second temperature for a second period.
    Type: Application
    Filed: November 19, 2020
    Publication date: January 19, 2023
    Inventors: David Joseph WETZEL, Lin XU, John DAUGHERTY, John Michael KERNS, Satish SRINIVASAN, Robin KOSHY, Michael LOPEZ, Douglas DETERT
  • Publication number: 20220392753
    Abstract: A component of a plasma processing chamber having at least one plasma facing surface of the component comprises single crystal metal oxide material. The component can be machined from a single crystal metal oxide ingot. Suitable single crystal metal oxides include spinel, yttrium oxide, and yttrium aluminum garnet (YAG). A single crystal metal oxide can be machined to form a gas injector of a plasma processing chamber.
    Type: Application
    Filed: October 21, 2020
    Publication date: December 8, 2022
    Inventors: Lin XU, Douglas DETERT, John DAUGHERTY, Pankaj HAZARIKA, Satish SRINIVASAN, Nash W. ANDERSON, John Michael KERNS, Robin KOSHY, David Joseph WETZEL, Lei LIU, Eric A. PAPE