Patents by Inventor Shahid Rauf

Shahid Rauf 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: 11935724
    Abstract: The disclosure pertains to a capacitively coupled plasma source in which VHF power is applied through an impedance-matching coaxial resonator having a symmetrical power distribution.
    Type: Grant
    Filed: February 13, 2023
    Date of Patent: March 19, 2024
    Assignee: Applied Materials, Inc.
    Inventors: Kartik Ramaswamy, Igor Markovsky, Zhigang Chen, James D. Carducci, Kenneth S. Collins, Shahid Rauf, Nipun Misra, Leonid Dorf, Zheng John Ye
  • Publication number: 20230411119
    Abstract: Embodiments disclosed herein include a dynamic load simulator. In an embodiment, the dynamic load simulator comprises an impedance load, a reverse match network, and a smart RF controller. In an embodiment, the smart RF controller comprises a dynamic load generator, and a reverse match controller.
    Type: Application
    Filed: June 17, 2022
    Publication date: December 21, 2023
    Inventors: Jie Yu, Yue Guo, Kartik Ramaswamy, Tao Zhang, Shahid Rauf, John Forster, Sidharth Bhatia, Rong Gang Zheng
  • Publication number: 20230197406
    Abstract: The disclosure pertains to a capacitively coupled plasma source in which VHF power is applied through an impedance-matching coaxial resonator having a symmetrical power distribution.
    Type: Application
    Filed: February 13, 2023
    Publication date: June 22, 2023
    Inventors: Kartik Ramaswamy, Igor Markovsky, Zhigang Chen, James D. Carducci, Kenneth S. Collins, Shahid Rauf, Nipun Misra, Leonid Dorf, Zheng John Ye
  • Patent number: 11587766
    Abstract: The disclosure pertains to a capacitively coupled plasma source in which VHF power is applied through an impedance-matching coaxial resonator having a symmetrical power distribution.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: February 21, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Kartik Ramaswamy, Igor Markovsky, Zhigang Chen, James D. Carducci, Kenneth S. Collins, Shahid Rauf, Nipun Misra, Leonid Dorf, Zheng John Ye
  • Patent number: 11551965
    Abstract: Implementations of the present disclosure provide a process kit for an electrostatic chuck. In one implementation, a substrate support assembly is provided. The substrate support assembly includes an electrostatic chuck having a first recess formed in an upper portion of the electrostatic chuck. A process kit surrounds the electrostatic chuck. The process kit includes an inner ring and an outer ring disposed radially outward of the inner ring. The outer ring includes a second recess formed in an upper portion of the upper ring. The inner ring is positioned within and is supported by the first recess and the second recess. An upper surface of the inner ring and an upper surface of the outer ring are co-planar.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: January 10, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Andrew Nguyen, Xue Chang, Shahid Rauf, Jason A. Kenney
  • Publication number: 20220293397
    Abstract: Embodiments of substrates supports for use in process chambers are provided herein. In some embodiments, a substrate support includes: a dielectric plate having a first side configured to support a substrate having a given diameter and including an annular groove disposed in the first side, wherein the annular groove has an inner diameter that is less than the given diameter and an outer diameter that is greater than the given diameter, wherein the dielectric plate includes a chucking electrode; an insert ring disposed in the annular groove of the dielectric plate; and an edge ring disposed on the dielectric plate, wherein the edge ring has an inner diameter that is greater than the given diameter and less than the outer diameter of the annular groove such that the edge ring is disposed over a portion of the insert ring.
    Type: Application
    Filed: March 10, 2021
    Publication date: September 15, 2022
    Inventors: Michael R. RICE, Kenneth S. COLLINS, James David CARDUCCI, Shahid RAUF, Kartik RAMASWAMY
  • Publication number: 20220254606
    Abstract: Embodiments of the present invention provide a plasma chamber design that allows extremely symmetrical electrical, thermal, and gas flow conductance through the chamber. By providing such symmetry, plasma formed within the chamber naturally has improved uniformity across the surface of a substrate disposed in a processing region of the chamber. Further, other chamber additions, such as providing the ability to manipulate the gap between upper and lower electrodes as well as between a gas inlet and a substrate being processed, allows better control of plasma processing and uniformity as compared to conventional systems.
    Type: Application
    Filed: April 25, 2022
    Publication date: August 11, 2022
    Inventors: James D. CARDUCCI, Hamid TAVASSOLI, Ajit BALAKRISHNA, Zhigang CHEN, Andrew NGUYEN, Douglas A. BUCHBERGER, JR., Kartik RAMASWAMY, SHAHID RAUF, Kenneth S. COLLINS
  • Patent number: 11315760
    Abstract: Embodiments of the present invention provide a plasma chamber design that allows extremely symmetrical electrical, thermal, and gas flow conductance through the chamber. By providing such symmetry, plasma formed within the chamber naturally has improved uniformity across the surface of a substrate disposed in a processing region of the chamber. Further, other chamber additions, such as providing the ability to manipulate the gap between upper and lower electrodes as well as between a gas inlet and a substrate being processed, allows better control of plasma processing and uniformity as compared to conventional systems.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: April 26, 2022
    Assignee: Applied Materials, Inc.
    Inventors: James D. Carducci, Hamid Tavassoli, Ajit Balakrishna, Zhigang Chen, Andrew Nguyen, Douglas A. Buchberger, Jr., Kartik Ramaswamy, Shahid Rauf, Kenneth S. Collins
  • Publication number: 20220084794
    Abstract: Embodiments disclosed herein include a plasma treatment chamber, comprising one or more sidewalls. A support surface within the one or more sidewalls holds a workpiece. A first gas injector along the one or more sidewalls injects a first gas flow in a first direction generally parallel to and across a surface of the workpiece. A first pump port along the one or more sidewalls generally opposite of the first gas injector pumps out the first gas flow. A second gas injector along the one or more sidewalls injects a second gas flow in a second direction generally parallel to and across the surface of the workpiece. A second pump port along the one or more sidewalls generally opposite of the second gas injector pumps out the second gas flow.
    Type: Application
    Filed: September 16, 2020
    Publication date: March 17, 2022
    Inventors: Kenneth S. Collins, Michael R. Rice, James D. Carducci, Kartik Ramaswamy, Ajit Balakrishna, Shahid Rauf, Jason Kenney
  • Publication number: 20220051910
    Abstract: Gas distribution modules comprising a housing with an upper plenum and a lower plenum are described. One of the upper plenum and lower plenum is in fluid communication with an inlet and the other is in fluid communication with an outlet. A plurality of upper passages connects the upper plenum to the bottom of the housing to allow a flow of gas to pass through and be isolated from the first plenum.
    Type: Application
    Filed: October 28, 2021
    Publication date: February 17, 2022
    Applicant: Applied Materials, Inc.
    Inventors: Kallol Bera, Shahid Rauf, James Carducci, Vladimir Knyazik, Anantha K. Subramani
  • Patent number: 11189502
    Abstract: Gas distribution modules comprising a housing with an upper plenum and a lower plenum are described. One of the upper plenum and lower plenum is in fluid communication with an inlet and the other is in fluid communication with an outlet. A plurality of upper passages connects the upper plenum to the bottom of the housing to allow a flow of gas to pass through and be isolated from the first plenum.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: November 30, 2021
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Kallol Bera, Shahid Rauf, James Carducci, Vladimir Knyazik, Anantha K. Subramani
  • Publication number: 20210313147
    Abstract: The disclosure pertains to a capacitively coupled plasma source in which VHF power is applied through an impedance-matching coaxial resonator having a symmetrical power distribution.
    Type: Application
    Filed: June 21, 2021
    Publication date: October 7, 2021
    Inventors: Kartik Ramaswamy, Igor Markovsky, Zhigang Chen, James D. Carducci, Kenneth S. Collins, Shahid Rauf, Nipun Misra, Leonid Dorf, Zheng John Ye
  • Patent number: 11114284
    Abstract: A plasma reactor includes a chamber body having an interior space that provides a plasma chamber, a gas distributor to deliver a processing gas to the plasma chamber, a workpiece support to hold a workpiece, an electrode assembly comprising a plurality of conductors spaced apart from and extending laterally across the workpiece support in a parallel coplanar array, a first RF power source to supply a first RF power to the electrode assembly, and a dielectric bottom plate between the electrode assembly and the workpiece support, the dielectric bottom plate providing an RF window between the electrode assembly and the plasma chamber.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: September 7, 2021
    Assignee: Applied Materials, Inc.
    Inventors: Kenneth S. Collins, Michael R. Rice, Kartik Ramaswamy, James D. Carducci, Shahid Rauf, Kallol Bera
  • Patent number: 11101113
    Abstract: A method of etching uses an overhead electron beam source that generates an ion-ion plasma for performing an atomic layer etch process.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: August 24, 2021
    Assignee: Applied Materials, Inc.
    Inventors: Kenneth S. Collins, Kartik Ramaswamy, James D. Carducci, Shahid Rauf, Leonid Dorf, Yang Yang
  • Patent number: 11043361
    Abstract: The disclosure pertains to a capacitively coupled plasma source in which VHF power is applied through an impedance-matching coaxial resonator having a symmetrical power distribution.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: June 22, 2021
    Assignee: Applied Materials, Inc.
    Inventors: Kartik Ramaswamy, Igor Markovsky, Zhigang Chen, James D. Carducci, Kenneth S. Collins, Shahid Rauf, Nipun Misra, Leonid Dorf, Zheng John Ye
  • Patent number: 10811226
    Abstract: A plasma reactor has an overhead inductively coupled plasma source with two coil antennas and symmetric and radial RF feeds and cylindrical RF shielding around the symmetric and radial RF feeds. The radial RF feeds are symmetrically fed to the plasma source.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: October 20, 2020
    Assignee: Applied Materials, Inc.
    Inventors: James D. Carducci, Kenneth S. Collins, Richard Fovell, Jason A. Kenney, Kartik Ramaswamy, Shahid Rauf
  • Patent number: 10790180
    Abstract: Electrostatic chucks with variable pixelated magnetic field are described. For example, an electrostatic chuck (ESC) includes a ceramic plate having a front surface and a back surface, the front surface for supporting a wafer or substrate. A base is coupled to the back surface of the ceramic plate. A plurality of electromagnets is disposed in the base, the plurality of electromagnets configured to provide pixelated magnetic field tuning capability for the ESC.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: September 29, 2020
    Assignee: Applied Materials, Inc.
    Inventors: Chih-Hsun Hsu, Tza-Jing Gung, Benjamin Schwarz, Shahid Rauf, Ankur Agarwal, Vijay D. Parkhe, Michael D. Willwerth, Zhiqiang Guo
  • Publication number: 20200286717
    Abstract: Embodiments of an electrostatic chuck are provided herein. In some embodiments, an electrostatic chuck for use in a substrate processing chamber includes a plate having a first side and a second side opposite the first side, a first electrode embedded in the plate proximate the first side, a second electrode embedded in the plate proximate the second side, a plurality of conductive elements coupling the first electrode to the second electrode, a first gas channel disposed within the plate and between the first electrode and the second electrode, a gas inlet extending from the second side of the plate to the first gas channel; and a plurality of gas outlets extending from the first side of the plate to the first gas channel.
    Type: Application
    Filed: May 8, 2019
    Publication date: September 10, 2020
    Inventors: JAEYONG CHO, SHAHID RAUF, PENG TIAN
  • Patent number: 10770269
    Abstract: Embodiments of the present disclosure generally provide various apparatus and methods for reducing particles in a semiconductor processing chamber. One embodiment of present disclosure provides a vacuum screen assembly disposed over a vacuum port to prevent particles generated by the vacuum pump from entering substrate processing regions. Another embodiment of the present disclosure provides a perforated chamber liner around a processing region of the substrate. Another embodiment of the present disclosure provides a gas distributing chamber liner for distributing a cleaning gas around the substrate support under the substrate supporting surface.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: September 8, 2020
    Assignee: Applied Materials, Inc.
    Inventors: Andrew Nguyen, Bradley Howard, Shahid Rauf, Ajit Balakrishna, Tom K. Choi, Kenneth S. Collins, Anand Kumar, Michael D. Willwerth, Yogananda Sarode Vishwanath
  • Publication number: 20200185256
    Abstract: Implementations of the present disclosure provide a process kit for an electrostatic chuck. In one implementation, a substrate support assembly is provided. The substrate support assembly includes an electrostatic chuck having a first recess formed in an upper portion of the electrostatic chuck. A process kit surrounds the electrostatic chuck. The process kit includes an inner ring and an outer ring disposed radially outward of the inner ring. The outer ring includes a second recess formed in an upper portion of the upper ring. The inner ring is positioned within and is supported by the first recess and the second recess. An upper surface of the inner ring and an upper surface of the outer ring are co-planar.
    Type: Application
    Filed: October 18, 2019
    Publication date: June 11, 2020
    Inventors: Andrew NGUYEN, Xue CHANG, Shahid RAUF, Jason A. KENNEY