Patents by Inventor Alan Ritchie

Alan Ritchie 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: 20240186128
    Abstract: Methods and apparatus for physical vapor deposition are provided herein. In some embodiments, a process kit shield for use in a physical vapor deposition chamber may include an electrically conductive body having one or more sidewalls defining a central opening, wherein the body has a ratio of a surface area of inner facing surfaces of the one or more sidewalls to a height of the one or more sidewalls of about 2 to about 3.
    Type: Application
    Filed: January 22, 2024
    Publication date: June 6, 2024
    Inventors: Alan RITCHIE, John C. FORSTER, Muhammad RASHEED
  • Patent number: 11915917
    Abstract: Methods and apparatus for physical vapor deposition are provided herein. In some embodiments, a process kit shield for use in a physical vapor deposition chamber may include an electrically conductive body having one or more sidewalls defining a central opening, wherein the body has a ratio of a surface area of inner facing surfaces of the one or more sidewalls to a height of the one or more sidewalls of about 2 to about 3.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: February 27, 2024
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Alan Ritchie, John C. Forster, Muhammad Rasheed
  • Publication number: 20200312640
    Abstract: Methods and apparatus for physical vapor deposition are provided herein. In some embodiments, a process kit shield for use in a physical vapor deposition chamber may include an electrically conductive body having one or more sidewalls defining a central opening, wherein the body has a ratio of a surface area of inner facing surfaces of the one or more sidewalls to a height of the one or more sidewalls of about 2 to about 3.
    Type: Application
    Filed: June 15, 2020
    Publication date: October 1, 2020
    Inventors: Alan RITCHIE, John C. FORSTER, Muhammad RASHEED
  • Patent number: 10692706
    Abstract: Methods and apparatus for physical vapor deposition are provided herein. In some embodiments, a process kit shield for use in a physical vapor deposition chamber may include an electrically conductive body having one or more sidewalls defining a central opening, wherein the body has a ratio of a surface area of inner facing surfaces of the one or more sidewalls to a height of the one or more sidewalls of about 2 to about 3.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: June 23, 2020
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Alan Ritchie, John C. Forster, Muhammad Rasheed
  • Patent number: 10099245
    Abstract: Variable geometry process kits for use in semiconductor process chambers have been provided herein. In some embodiments, a process kit for use in a semiconductor process chamber includes: an annular body configured to rest about a periphery of a substrate support; a first ring positioned coaxially with the annular body and supported by the annular body; a second ring positioned coaxially with the first ring and supported by the first ring; and an annular shield comprising a horizontal leg positioned coaxially with the second ring such that a portion of the horizontal leg is aligned with and below portions of the first ring and second ring.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: October 16, 2018
    Assignee: APPLIED MATERIALS, INC.
    Inventors: John Forster, Zhenbin Ge, Alan Ritchie
  • Patent number: 9812303
    Abstract: Methods and apparatus for a magnetron assembly are provided herein. In some embodiments, a magnetron assembly includes a first base plate; a second base plate movable with respect to the first base plate between a first position and a second position; an outer magnetic pole in the shape of a loop and comprising an outer magnetic pole section coupled to the first base plate and an outer magnetic pole section coupled to the second base plate; and an inner magnetic pole disposed within the outer magnetic pole, wherein the outer and inner magnetic poles define a closed loop magnetic field, and wherein the closed loop magnetic field is maintained when the second base plate is disposed in both the first position and a second position.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: November 7, 2017
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Alan Ritchie, Ryan Hanson, Xianwei Zhao
  • Patent number: 9695502
    Abstract: Apparatus for processing substrates are provided herein. In some embodiments, an apparatus includes a process kit comprising a shield having one or more sidewalls configured to surround a first volume, the first volume disposed within an inner volume of a process chamber; and a first ring moveable between a first position, wherein the first ring rests on the shield, and a second position, wherein a gap is formed between an outer surface of the first ring and an inner surface of the one or more sidewalls, wherein a width of the gap is less than about two plasma sheath widths for a plasma formed at a frequency of about 40 MHz or higher and at a pressure of about 140 mTorr or lower.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: July 4, 2017
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Alan Ritchie, Donny Young
  • Patent number: 9611539
    Abstract: Methods and apparatus for depositing a metal-containing layer on a substrate are provided herein. In some embodiments, a method of processing a substrate in a physical vapor deposition (PVD) chamber includes applying RF power at a VHF frequency to a target comprising a metal disposed in the PVD chamber above the substrate to form a plasma from a plasma-forming gas; optionally applying a DC power to the target to direct the plasma towards the target; sputtering metal atoms from the target using the plasma while maintaining a first pressure in the PVD chamber sufficient to ionize a predominant portion of the sputtered metal atoms; and controlling the plasma sheath voltage between the plasma and the substrate to form a metal-containing layer having a desired crystal structure and or desired morphology on feature structures.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: April 4, 2017
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Zhenbin Ge, Alan Ritchie, Adolph Miller Allen
  • Patent number: 9580796
    Abstract: One or more embodiments of the invention are directed to deposition apparatuses comprising a grounded top wall, a processing chamber and a plasma source assembly having a conductive hollow cylinder and substantially continuous grounded shield substantially conforming to the shape of the hollow cylinder.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: February 28, 2017
    Assignee: Applied Materials, Inc.
    Inventors: Alan Ritchie, Michael S. Cox
  • Patent number: 9340866
    Abstract: Apparatus for processing substrates are provided herein. In some embodiments, an apparatus for processing a substrate includes a substrate support that may include a dielectric member having a surface to support a substrate thereon; one or more first conductive members disposed below the dielectric member and having a dielectric member facing surface adjacent to the dielectric member; and a second conductive member disposed about and contacting the one or more first conductive members such that RF energy provided to the substrate by an RF source returns to the RF source by traveling radially outward from the substrate support along the dielectric member facing surface of the one or more first conductive members and along a first surface of the second conductive member disposed substantially parallel to a peripheral edge surface of the one or more first conductive members after travelling along the dielectric layer facing surface.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: May 17, 2016
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Alan Ritchie, Donny Young, Wei W. Wang, Ananthkrishna Jupudi, Thanh X. Nguyen, Kirankumar Savandaiah
  • Patent number: 9303311
    Abstract: Substrate processing systems are provided herein. In some embodiments, a substrate processing system may include a target assembly having a target comprising a source material to be deposited on a substrate; a grounding assembly disposed about the target assembly and having a first surface that is generally parallel to and opposite a backside of the target assembly; a support member coupled to the grounding assembly to support the target assembly within the grounding assembly; one or more insulators disposed between the backside of the target assembly and the first surface of the grounding assembly; and one or more biasing elements disposed between the first surface of the grounding assembly and the backside of the target assembly to bias the target assembly toward the support member.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: April 5, 2016
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Donny Young, Alan Ritchie, Uday Pai, Muhammad Rasheed, Keith A. Miller
  • Patent number: 9255322
    Abstract: A processing system may include a target having a central axis normal thereto; a source distribution plate having a target facing side opposing a backside of the target, wherein the source distribution plate includes a plurality of first features such that a first distance of a first radial RF distribution path along a given first diameter is about equal to a second distance of an opposing second radial RF distribution path along the given first diameter; and a ground plate opposing a target opposing side of the source distribution plate and having a plurality of second features disposed about the central axis and corresponding to the plurality of first features, wherein a third distance of a first radial RF return path along a given second diameter is about equal to a fourth distance of an opposing second radial RF return path along the given second diameter.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: February 9, 2016
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Donny Young, Alan Ritchie, Muhammad Rasheed, Keith A. Miller
  • Patent number: 9218961
    Abstract: Methods for forming a metal containing layer onto a substrate with good deposition profile control and film uniformity across the substrate are provided. In one embodiment, a method of sputter depositing a metal containing layer on the substrate includes transferring a substrate in a processing chamber, supplying a gas mixture including at least Ne gas into the processing chamber, applying a RF power to form a plasma from the gas mixture, and depositing a metal containing layer onto the substrate in the presence of the plasma.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: December 22, 2015
    Assignee: Applied Materials, Inc.
    Inventors: Zhenbin Ge, Alan Ritchie, Adolph Miller Allen
  • Publication number: 20150349374
    Abstract: Solid-state battery structures and methods of manufacturing solid-state batteries, such as thin-film batteries, are disclosed. More particularly, embodiments relate to solid-state batteries that incorporate magnetic material in one or more layers. Other embodiments are also described and claimed.
    Type: Application
    Filed: May 26, 2015
    Publication date: December 3, 2015
    Inventors: Tetsuya Ishikawa, Penchala N. Kankanala, Alan Ritchie
  • Patent number: 9028659
    Abstract: Embodiments of magnetrons suitable to provide extended target life in radio frequency (RF) plasmas are provided. In some embodiments, apparatus and methods are provided to control film uniformity while extending the target life in an RF plasma. In some embodiments, the present invention may facilitate one or more of very high target utilization, more uniform metal ionization, and more uniform deposition on a substrate. In some embodiments, a magnetron may include a magnet support member having a center of rotation; and a plurality of magnetic tracks, each track comprising a pair of open loop magnetic poles parallel to and spaced apart from each other, wherein one track is disposed near the center of the magnet support member, and wherein a different track is disposed in a position corresponding to an outer edge of a target material to be deposited on a substrate when installed in the PVD process chamber.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: May 12, 2015
    Assignee: Applied Materials, Inc.
    Inventors: Alan Ritchie, Zhenbin Ge, Tza-Jing Gung, Vivek Gupta
  • Patent number: 8846451
    Abstract: Methods for depositing metal in high aspect ratio features formed on a substrate are provided herein. In some embodiments, a method includes applying first RF power at VHF frequency to target comprising metal disposed above substrate to form plasma, applying DC power to target to direct plasma towards target, sputtering metal atoms from target using plasma while maintaining pressure in PVD chamber sufficient to ionize predominant portion of metal atoms, depositing first plurality of metal atoms on bottom surface of opening and on first surface of substrate, applying second RF power to redistribute at least some of first plurality from bottom surface to lower portion of sidewalls of the opening, and depositing second plurality of metal atoms on upper portion of sidewalls by reducing amount of ionized metal atoms in PVD chamber, wherein first and second pluralities form a first layer deposited on substantially all surfaces of opening.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: September 30, 2014
    Assignee: Applied Materials, Inc.
    Inventors: Alan Ritchie, Karl Brown, John Pipitone
  • Publication number: 20140262764
    Abstract: Methods and apparatus for physical vapor deposition are provided herein. In some embodiments, a process kit shield for use in a physical vapor deposition chamber may include an electrically conductive body having one or more sidewalls defining a central opening, wherein the body has a ratio of a surface area of inner facing surfaces of the one or more sidewalls to a height of the one or more sidewalls of about 2 to about 3.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 18, 2014
    Inventors: ALAN RITCHIE, JOHN C. FORSTER, MUHAMMAD RASHEED
  • Publication number: 20140262026
    Abstract: Variable geometry process kits for use in semiconductor process chambers have been provided herein. In some embodiments, a process kit for use in a semiconductor process chamber includes: an annular body configured to rest about a periphery of a substrate support; a first ring positioned coaxially with the annular body and supported by the annular body; a second ring positioned coaxially with the first ring and supported by the first ring; and an annular shield comprising a horizontal leg positioned coaxially with the second ring such that a portion of the horizontal leg is aligned with and below portions of the first ring and second ring.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: APPLIED MATERIALS, INC.
    Inventors: JOHN FORSTER, ZHENBIN GE, ALAN RITCHIE
  • Publication number: 20140246314
    Abstract: Methods and apparatus for a magnetron assembly are provided herein. In some embodiments, a magnetron assembly includes a first base plate; a second base plate movable with respect to the first base plate between a first position and a second position; an outer magnetic pole in the shape of a loop and comprising an outer magnetic pole section coupled to the first base plate and an outer magnetic pole section coupled to the second base plate; and an inner magnetic pole disposed within the outer magnetic pole, wherein the outer and inner magnetic poles define a closed loop magnetic field, and wherein the closed loop magnetic field is maintained when the second base plate is disposed in both the first position and a second position.
    Type: Application
    Filed: February 18, 2014
    Publication date: September 4, 2014
    Applicant: APPLIED MATERIALS, INC.
    Inventors: ALAN RITCHIE, RYAN HANSON, XIANWEI ZHAO
  • Patent number: 8795488
    Abstract: In some embodiments, a feed structure to couple RF energy to a target may include a body having a first end to receive RF energy and a second end opposite the first end to couple the RF energy to a target, the body further having a central opening disposed through the body from the first end to the second end; a first member coupled to the body at the first end, wherein the first member comprises a first element circumscribing the body and extending radially outward from the body, and one or more terminals disposed in the first member to receive RF energy from an RF power source; and a source distribution plate coupled to the second end of the body to distribute the RF energy to the target, wherein the source distribution plate includes a hole disposed through the plate and aligned with the central opening of the body.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: August 5, 2014
    Assignee: Applied Materials, Inc.
    Inventors: Muhammad Rasheed, Lara Hawrylchak, Michael S. Cox, Donny Young, Kirankumar Savandaiah, Alan Ritchie