Patents by Inventor Yogananda Sarode Vishwanath

Yogananda Sarode Vishwanath 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: 11913777
    Abstract: A diagnostic disc includes a disc body having a sidewall around a circumference of the disc body and at least one protrusion extending outwardly from a top of the sidewall. A non-contact sensor is attached to an underside of each of the at least one protrusion. A a printed circuit board (PCB) is positioned within an interior formed by the disc body. Circuitry is disposed on the PCB and coupled to each non-contact sensor, the circuitry including at least a wireless communication circuit, a memory, and a battery. A cover is positioned over the circuitry inside of the sidewall, wherein the cover seals the circuitry within the interior formed by the disc body from an environment outside of the disc body.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: February 27, 2024
    Assignee: Applied Materials, Inc.
    Inventors: Yogananda Sarode Vishwanath, Phillip A. Criminale
  • Patent number: 11887879
    Abstract: Aspects of the present disclosure generally relate to apparatuses and methods for edge ring replacement in processing chambers. In one aspect, a carrier for supporting an edge ring is disclosed. In other aspects, robot blades for supporting a carrier are disclosed. In another aspect, a support structure for supporting a carrier in a degassing chamber is disclosed. In another aspect, a method of transferring an edge ring on a carrier is disclosed.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: January 30, 2024
    Assignee: Applied Materials, Inc.
    Inventors: Yogananda Sarode Vishwanath, Steven E. Babayan, Stephen Prouty, Andreas Schmid
  • Patent number: 11835146
    Abstract: Embodiments of symmetric flow valves for use in a substrate processing chamber are provided herein. In some embodiments, a symmetric flow valve includes a valve body having sidewalls, a bottom plate, and a top plate that together define an interior volume, wherein the top plate includes one or more axisymmetrically disposed openings; a poppet disposed in the interior volume, wherein the poppet includes a central opening and a plurality of portions configured to selectively seal the one or more axisymmetrically disposed openings of the top plate when the symmetric flow valve is in a closed position; and a first actuator coupled to the poppet to position the poppet within the interior volume in at least an open position, where the poppet is spaced apart from the top plate to allow flow through the one or more axisymmetrically disposed openings of the top plate, and the closed position.
    Type: Grant
    Filed: December 1, 2021
    Date of Patent: December 5, 2023
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Andrew Nguyen, Yogananda Sarode Vishwanath, Xue Chang, Anilkumar Rayaroth, Chetan Naik, Balachandra Jatak Narayan
  • Patent number: 11728143
    Abstract: Process kits, processing chambers, and methods for processing a substrate are provided. The process kit includes an edge ring, a sliding ring, an adjustable tuning ring, and an actuating mechanism. The edge ring has a first ring component interfaced with a second ring component that is movable relative to the first ring component forming a gap therebetween. The sliding ring is positioned beneath the second ring component of the edge ring. The adjustable tuning ring is positioned beneath the sliding ring. The actuating mechanism is interfaced with the lower surface of the adjustable tuning ring and configured to actuate the adjustable tuning ring such that the gap between the first and second ring components is varied. In one or more examples, the sliding ring includes a matrix and a coating, the matrix contains an electrically conductive material and the coating contains an electrically insulting material.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: August 15, 2023
    Assignee: APPLIED MATERIALS, INC.
    Inventor: Yogananda Sarode Vishwanath
  • Patent number: 11569114
    Abstract: Embodiments described herein relate to a substrate support assembly. The substrate support assembly includes an ESC base assembly having a base channel disposed therein, a facility plate, the facility plate coupled to the ESC base assembly with a vacuum region therebetween, and a seal assembly. The seal assembly includes an upper flange coupled to the base channel of the ESC base assembly, the upper flange disposed in the facility plate, a lower flange coupled to the upper flange, the lower flange disposed in the facility plate, a gasket disposed between the upper flange and the lower flange, and an insulator tube coupled to the lower flange. A passage is connected to the base channel, the passage is defined by connected openings of the upper flange, the gasket, the lower flange, the insulator tube, and the base assembly.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: January 31, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Yogananda Sarode Vishwanath, Steven E. Babayan, Andreas Schmid, Stephen Donald Prouty, Andrew Antoine Noujaim
  • Publication number: 20220319904
    Abstract: Apparatuses including a height-adjustable edge ring, and methods for use thereof are described herein. In one example, a process kit for processing a substrate is provided. The process kit has a support ring comprising an upper surface having an inner edge disposed at a first height and an outward edge disposed at a second height less than the first height, the inner edge having a greater thickness than the outward edge. An edge ring is disposed on the support ring, an inner surface of the edge ring interfaced with the inner edge of the support ring. A cover ring is disposed outward of the edge ring, the edge ring independently moveable relative to the support ring and the cover ring. Push pins are disposed inward of the cover ring, the push pins operable to elevate the edge ring while constraining radial movement of the support ring.
    Type: Application
    Filed: June 17, 2022
    Publication date: October 6, 2022
    Inventors: Michael R. RICE, Yogananda SARODE VISHWANATH, Sunil SRINIVASAN, Rajinder DHINDSA, Steven E. BABAYAN, Olivier LUERE, Denis M. KOOSAU, Imad YOUSIF
  • Patent number: 11437261
    Abstract: Embodiments described herein relate to a substrate support assembly which enables a cryogenic temperature operation of an electrostatic chuck (ESC) so that a substrate disposed thereon is maintained at a cryogenic processing temperature suitable for processing while other surfaces of a processing chamber are maintained at a different temperature. The substrate support assembly includes an electrostatic chuck (ESC), an ESC base assembly coupled to the ESC having a refrigerant channel disposed therein, and a facility plate having a coolant channel disposed therein. The facility plate includes a plate portion and a flange portion. The plate portion is coupled to the ESC base assembly and the flange portion coupled to the ESC with a seal assembly. A vacuum region is defined by the ESC, the ESC base assembly, the plate portion of the facility plate, the flange portion of the facility plate, and the seal assembly.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: September 6, 2022
    Assignee: Applied Materials, Inc.
    Inventors: Yogananda Sarode Vishwanath, Steven E. Babayan, Stephen Donald Prouty, Álvaro García De Gorordo, Andreas Schmid, Andrew Antoine Noujaim
  • Publication number: 20220262664
    Abstract: Embodiments described herein relate to a substrate support assembly. The substrate support assembly includes an ESC base assembly having a base channel disposed therein, a facility plate, the facility plate coupled to the ESC base assembly with a vacuum region therebetween, and a seal assembly. The seal assembly includes an upper flange coupled to the base channel of the ESC base assembly, the upper flange disposed in the facility plate, a lower flange coupled to the upper flange, the lower flange disposed in the facility plate, a gasket disposed between the upper flange and the lower flange, and an insulator tube coupled to the lower flange. A passage is connected to the base channel, the passage is defined by connected openings of the upper flange, the gasket, the lower flange, the insulator tube, and the base assembly.
    Type: Application
    Filed: February 12, 2021
    Publication date: August 18, 2022
    Inventors: Yogananda SARODE VISHWANATH, Steven E. BABAYAN, Andreas SCHMID, Stephen Donald PROUTY, Andrew Antoine NOUJAIM
  • Patent number: 11393710
    Abstract: Apparatuses including a height-adjustable edge ring, and methods for use thereof are described herein. In one example, a substrate support assembly includes a height-adjustable edge ring, and the substrate support assembly is located within a process chamber. The substrate support assembly includes an electrostatic chuck, an edge ring positioned on a portion of the electrostatic chuck, and one or more actuators to adjust the height of the edge ring via one or more push pins. The height-adjustable edge ring can be used to compensate for erosion of the edge ring over time. In addition, the height-adjustable edge ring can be removed from the process chamber via a slit valve opening without venting and opening the process chamber. The height-adjustable edge ring can be tilted by the one or more actuators in order to improve azimuthal uniformity at the edge of the substrate.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: July 19, 2022
    Assignee: Applied Materials, Inc.
    Inventors: Michael R. Rice, Yogananda Sarode Vishwanath, Sunil Srinivasan, Rajinder Dhindsa, Steven E. Babayan, Olivier Luere, Denis M. Koosau, Imad Yousif
  • Patent number: 11373893
    Abstract: Embodiments described herein relate to a substrate support assembly which enables a cryogenic temperature operation of an electrostatic chuck (ESC) so that a substrate disposed thereon is maintained at a cryogenic processing temperature suitable for processing while other surfaces of a processing chamber are maintained at a different temperature. The substrate support assembly includes an electrostatic chuck (ESC), an ESC base assembly coupled to the ESC having a base channel disposed therein, and a facility plate having a facility channel disposed therein. The facility plate includes a plate portion and a wall portion. The plate portion is coupled to the ESC base assembly and the wall portion coupled to the ESC with a seal assembly. A vacuum region is defined by the ESC, the ESC base assembly, the plate portion of the facility plate, the wall portion of the facility plate, and the seal assembly.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: June 28, 2022
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Yogananda Sarode Vishwanath, Steven E. Babayan, Stephen Donald Prouty, Alvaro Garcia De Gorordo, Andreas Schmid, Andrew Antoine Noujaim
  • Publication number: 20220090686
    Abstract: Embodiments of symmetric flow valves for use in a substrate processing chamber are provided herein. In some embodiments, a symmetric flow valve includes a valve body having sidewalls, a bottom plate, and a top plate that together define an interior volume, wherein the top plate includes one or more axisymmetrically disposed openings; a poppet disposed in the interior volume, wherein the poppet includes a central opening and a plurality of portions configured to selectively seal the one or more axisymmetrically disposed openings of the top plate when the symmetric flow valve is in a closed position; and a first actuator coupled to the poppet to position the poppet within the interior volume in at least an open position, where the poppet is spaced apart from the top plate to allow flow through the one or more axisymmetrically disposed openings of the top plate, and the closed position.
    Type: Application
    Filed: December 1, 2021
    Publication date: March 24, 2022
    Inventors: Andrew NGUYEN, Yogananda Sarode VISHWANATH, Xue CHANG, Anilkumar RAYAROTH, Chetan NAIK, Balachandra Jatak NARAYAN
  • Patent number: 11199267
    Abstract: Embodiments of symmetric flow valves for use in a substrate processing chamber are provided herein. In some embodiments, a symmetric flow valve includes a valve body having sidewalls, a bottom plate, and a top plate that together define an interior volume, wherein the top plate includes one or more axisymmetrically disposed openings; a poppet disposed in the interior volume, wherein the poppet includes a central opening and a plurality of portions configured to selectively seal the one or more axisymmetrically disposed openings of the top plate when the symmetric flow valve is in a closed position; and a first actuator coupled to the poppet to position the poppet within the interior volume in at least an open position, where the poppet is spaced apart from the top plate to allow flow through the one or more axisymmetrically disposed openings of the top plate, and the closed position.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: December 14, 2021
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Andrew Nguyen, Yogananda Sarode Vishwanath, Xue Chang, Anilkumar Rayaroth, Chetan Naik, Balachandra Jatak Narayan
  • Patent number: 11201037
    Abstract: Process kits, processing chambers, and methods for processing a substrate are provided. The process kit includes an edge ring, an adjustable tuning ring, and an actuating mechanism. The edge ring has a first ring component interfaced with a second ring component that is movable relative to the first ring component forming a gap therebetween. A lower surface of the second ring component contains an upper alignment coupling and an upper surface of the adjustable tuning ring contains a lower alignment coupling. The lower alignment coupling of the adjustable tuning ring is configured to mate with the upper alignment coupling of the second ring component to form an interface. The actuating mechanism is interfaced with the lower surface of the adjustable tuning ring. The actuating mechanism is configured to actuate the adjustable tuning ring such that the gap between the first ring component and the second ring component is varied.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: December 14, 2021
    Assignee: APPLIED MATERIALS, INC.
    Inventor: Yogananda Sarode Vishwanath
  • Publication number: 20210351063
    Abstract: Aspects of the present disclosure generally relate to apparatuses and methods for edge ring replacement in processing chambers. In one aspect, a carrier for supporting an edge ring is disclosed. In other aspects, robot blades for supporting a carrier are disclosed. In another aspect, a support structure for supporting a carrier in a degassing chamber is disclosed. In another aspect, a method of transferring an edge ring on a carrier is disclosed.
    Type: Application
    Filed: July 1, 2021
    Publication date: November 11, 2021
    Inventors: Yogananda Sarode Vishwanath, Steven E. Babayan, Stephen Prouty, Andreas Schmid
  • Publication number: 20210343508
    Abstract: Embodiments of process kits for use in a process chamber are provided herein. In some embodiments, a process kit for use in a process chamber includes: a chamber liner having a tubular body with an upper portion and a lower portion; a confinement plate coupled to the lower portion of the chamber liner and extending radially inward from the chamber liner, wherein the confinement plate includes a plurality of slots; a shield ring disposed within the chamber liner and movable between the upper portion of the chamber liner and the lower portion of the chamber liner; and a plurality of ground straps coupled to the shield ring at a first end of each ground strap of the plurality of ground straps and to the confinement plate at a second end of each ground strap to maintain electrical connection between the shield ring and the chamber liner when the shield ring moves.
    Type: Application
    Filed: April 30, 2020
    Publication date: November 4, 2021
    Inventors: Andrew NGUYEN, Xue Yang CHANG, Yu LEI, Xianmin TANG, John C. FORSTER, Yogananda Sarode VISHWANATH, Abilash SAINATH, Tza-Jing GUNG
  • Publication number: 20210233799
    Abstract: Apparatuses for substrate transfer are provided. A lift pin assembly can include a lift pin, a purge cylinder, and a lift pin guide. The lift pin guide is disposed adjacent the purge cylinder. The lift pin guide and the purge cylinder have a passage formed therethrough in which the lift pin is disposed. The purge cylinder includes one or more nozzles that direct the flow of gas radially inward into a portion of the passage disposed in the purge cylinder. The one or more nozzles are disposed radially outward from the lift pin. The purge cylinder reduces particle deposition on the substrate by preventing contact between the lift pin and the support assembly as the lift pin is in motion.
    Type: Application
    Filed: April 9, 2021
    Publication date: July 29, 2021
    Inventors: Yogananda SARODE VISHWANATH, Anand KUMAR
  • Patent number: 11075105
    Abstract: Aspects of the present disclosure generally relate to apparatuses and methods for edge ring replacement in processing chambers. In one aspect, a carrier for supporting an edge ring is disclosed. In other aspects, robot blades for supporting a carrier are disclosed. In another aspect, a support structure for supporting a carrier in a degassing chamber is disclosed. In another aspect, a method of transferring an edge ring on a carrier is disclosed.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: July 27, 2021
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Yogananda Sarode Vishwanath, Steven E. Babayan, Stephen Prouty, Andreas Schmid
  • Publication number: 20210175103
    Abstract: Exemplary semiconductor processing chambers may include a chamber body defining a substrate processing region. The chambers may include a substrate support positioned within the substrate processing region. The substrate support may include a ceramic or polymeric insulator plate positioned between a cathode assembly and an electrostatic chuck assembly. The chambers may include an acoustic emission probe in contact with the insulator plate of the substrate support.
    Type: Application
    Filed: December 6, 2019
    Publication date: June 10, 2021
    Applicant: Applied Materials, Inc.
    Inventors: Srivatsa Madananth, Dhananjai Kumar, Yogananda Sarode Vishwanath, Jacob Andrews
  • Patent number: 11004722
    Abstract: Apparatuses for substrate transfer are provided. A lift pin assembly can include a lift pin, a purge cylinder, and a lift pin guide. The lift pin guide is disposed adjacent the purge cylinder. The lift pin guide and the purge cylinder have a passage formed therethough in which the lift pin is disposed. The purge cylinder includes one or more nozzles that direct the flow of gas radially inward into a portion of the passage disposed in the purge cylinder. The one or more nozzles are disposed radially outward from the lift pin. The purge cylinder reduces particle deposition on the substrate by preventing contact between the lift pin and the support assembly as the lift pin is in motion.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: May 11, 2021
    Inventors: Yogananda Sarode Vishwanath, Anand Kumar
  • Publication number: 20210082730
    Abstract: Embodiments described herein relate to a substrate support assembly which enables a cryogenic temperature operation of an electrostatic chuck (ESC) so that a substrate disposed thereon is maintained at a cryogenic processing temperature suitable for processing while other surfaces of a processing chamber are maintained at a different temperature. The substrate support assembly includes an electrostatic chuck (ESC), an ESC base assembly coupled to the ESC having a base channel disposed therein, and a facility plate having a facility channel disposed therein. The facility plate includes a plate portion and a wall portion. The plate portion is coupled to the ESC base assembly and the wall portion coupled to the ESC with a seal assembly. A vacuum region is defined by the ESC, the ESC base assembly, the plate portion of the facility plate, the wall portion of the facility plate, and the seal assembly.
    Type: Application
    Filed: August 19, 2020
    Publication date: March 18, 2021
    Inventors: Yogananda SARODE VISHWANATH, Steven E. BABAYAN, Stephen Donald PROUTY, Alvaro Garcia DE GORORDO, Andreas SCHMID, Andrew Antoine NOUJAIM