Patents by Inventor Bhaskar PRASAD

Bhaskar PRASAD 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: 12581900
    Abstract: A substrate process station includes a housing including a transport region and process region. The process station further includes a magnetic levitation assembly disposed in the transport region configured to levitate and propel a substrate carrier. The magnetic levitation assembly includes a first track segment including first rails disposed in the transport region and below the process region, wherein the first rails each include a first plurality of magnets. The process station further includes a pedestal assembly comprising a pedestal disposed within the housing. The pedestal is moveable between a pedestal transfer position and a process position, wherein the pedestal is disposed between the first rails in the pedestal transfer position to receive a substrate from the substrate carrier, and wherein the pedestal is moveable between the first rails to position the received substrate in the process region in the process position.
    Type: Grant
    Filed: May 1, 2023
    Date of Patent: March 17, 2026
    Assignee: Applied Materials, Inc.
    Inventors: Bhaskar Prasad, Kirankumar Neelasandra Savandaiah, Thomas Brezoczky, Lakshmikanth Krishnamurthy Shirahatti
  • Patent number: 12581901
    Abstract: A substrate process station includes a housing including a transport region and process region. The process station further includes a magnetic levitation assembly disposed in the transport region configured to levitate and propel a substrate carrier. The magnetic levitation assembly includes a first track segment including first rails disposed in the transport region and below the process region, wherein the first rails each include a first plurality of magnets. The process station further includes a pedestal assembly comprising a pedestal disposed within the housing. The pedestal is moveable between a pedestal transfer position and a process position, wherein the pedestal is disposed between the first rails in the pedestal transfer position to receive a substrate from the substrate carrier, and wherein the pedestal is moveable between the first rails to position the received substrate in the process region in the process position.
    Type: Grant
    Filed: May 1, 2023
    Date of Patent: March 17, 2026
    Assignee: Applied Materials, Inc.
    Inventors: Bhaskar Prasad, Kirankumar Neelasandra Savandaiah, Thomas Brezoczky, Lakshmikanth Krishnamurthy Shirahatti
  • Patent number: 12568796
    Abstract: A substrate process station includes a housing including a transport region and process region. The process station further includes a magnetic levitation assembly disposed in the transport region configured to levitate and propel a substrate carrier. The magnetic levitation assembly includes a first track segment including first rails disposed in the transport region and below the process region, wherein the first rails each include a first plurality of magnets. The process station further includes a pedestal assembly comprising a pedestal disposed within the housing. The pedestal is moveable between a pedestal transfer position and a process position, wherein the pedestal is disposed between the first rails in the pedestal transfer position to receive a substrate from the substrate carrier, and wherein the pedestal is moveable between the first rails to position the received substrate in the process region in the process position.
    Type: Grant
    Filed: May 1, 2023
    Date of Patent: March 3, 2026
    Assignee: Applied Materials, Inc.
    Inventors: Bhaskar Prasad, Kirankumar Neelasandra Savandaiah, Thomas Brezoczky, Lakshmikanth Krishnamurthy Shirahatti
  • Patent number: 12529133
    Abstract: A sputter source assembly for a sputter system is disclosed. The sputter source assembly includes a magnetron movable within a reservoir. The sputter source assembly also includes a magnetron actuator having first and second shafts extending along an axis and passing from an interior of the reservoir to an exterior thereof. Further, the magnetron actuator includes first and second motors disposed external to the reservoir and each aligned coaxially with the axis, the first and second motors being arranged to rotatably drive the first and second shafts, respectively, so as to cause movement of the magnetron.
    Type: Grant
    Filed: October 18, 2024
    Date of Patent: January 20, 2026
    Assignee: Applied Materials, Inc.
    Inventors: Nagabhushana Nanjundappa, Kirankumar Neelasandra Savandaiah, Bhaskar Prasad, Bryan Jeffrey Puch, Martin Lee Riker, Keith A. Miller
  • Publication number: 20260005051
    Abstract: A method and apparatus for identifying of a carrier of a group of carriers within a substrate processing system, wherein the carriers are conveyed by magnetic levitation through the substrate processing system. The carrier may be identified, for example, using an identification element of the carrier, at least two magnets on the carrier spaced apart by an identification distance, a weight of the carrier, a weight of a weighed feature of the carrier, or by the weight and location of a weighted feature of the carrier. Additionally, a method and apparatus for weighting the carrier in a station of the substrate processing system.
    Type: Application
    Filed: September 4, 2025
    Publication date: January 1, 2026
    Inventors: Bhaskar PRASAD, Thomas BREZOCZKY, Kirankumar Neelasandra SAVANDAIAH, Michael RICHTER
  • Patent number: 12512347
    Abstract: Embodiments described herein relate to methods and apparatus for detecting and/or monitoring, e.g., abnormalities in wafer transfer and handling. In an embodiment, a method for wafer dechucking verification is provided. The method includes initiating a wafer transfer operation to transfer a wafer between components of a semiconductor processing system, the semiconductor processing system comprising a motor coupled to a lift pin, the motor configured to adjust a height of the lift pin above a pedestal, the lift pin for raising or lowering the wafer. The method further includes measuring one or more first parameters during the wafer transfer operation, comparing the one or more first parameters to one or more first pre-determined parameter ranges, and changing a force applied to the lift pin based on the one or more first parameters.
    Type: Grant
    Filed: January 7, 2021
    Date of Patent: December 30, 2025
    Assignee: Applied Materials, Inc.
    Inventors: Bhaskar Prasad, Thomas Brezoczky, Kirankumar Neelasandra Savandaiah, Anubhav Srivastava
  • Patent number: 12494395
    Abstract: Embodiments of the present disclosure generally relate to lift pins and to apparatus for controlling lift pin movement. In an embodiment, an apparatus for positioning a substrate in a chamber is provided. The apparatus includes a chamber component, a lift pin having a top surface for supporting the substrate and a lift pin shaft and a stopper. The apparatus further includes a compressible element positioned between the chamber component and the stopper, the compressible element further positioned around the lift pin shaft, the lift pin being moveable relative to a substrate transfer plane by movement of a substrate support in contact with the compressible element.
    Type: Grant
    Filed: July 15, 2024
    Date of Patent: December 9, 2025
    Assignee: Applied Materials, Inc.
    Inventors: Anubhav Srivastava, Bhaskar Prasad, Kirankumar Neelasandra Savandaiah, Thomas Brezoczky, Nitin Bharadwaj Satyavolu
  • Publication number: 20250372426
    Abstract: A method and apparatus for identifying of a carrier of a group of carriers within a substrate processing system, wherein the carriers are conveyed by magnetic levitation through the substrate processing system. The carrier may be identified, for example, using an identification element of the carrier, at least two magnets on the carrier spaced apart by an identification distance, a weight of the carrier, a weight of a weighed feature of the carrier, or by the weight and location of a weighted feature of the carrier. Additionally, a method and apparatus for weighting the carrier in a station of the substrate processing system.
    Type: Application
    Filed: June 3, 2024
    Publication date: December 4, 2025
    Inventors: Bhaskar PRASAD, Thomas BREZOCZKY, Kirankumar Neelasandra SAVANDAIAH, Michael RICHTER
  • Publication number: 20250372424
    Abstract: A method and apparatus for identifying of a carrier of a group of carriers within a substrate processing system, wherein the carriers are conveyed by magnetic levitation through the substrate processing system. The carrier may be identified, for example, using an identification element of the carrier, at least two magnets on the carrier spaced apart by an identification distance, a weight of the carrier, a weight of a weighed feature of the carrier, or by the weight and location of a weighted feature of the carrier. Additionally, a method and apparatus for weighting the carrier in a station of the substrate processing system.
    Type: Application
    Filed: June 3, 2024
    Publication date: December 4, 2025
    Inventors: Bhaskar PRASAD, Thomas BREZOCZKY, Kirankumar Neelasandra SAVANDAIAH, Michael RICHTER
  • Publication number: 20250372423
    Abstract: A method and apparatus for identifying of a carrier of a group of carriers within a substrate processing system, wherein the carriers are conveyed by magnetic levitation through the substrate processing system. The carrier may be identified, for example, using an identification element of the carrier, at least two magnets on the carrier spaced apart by an identification distance, a weight of the carrier, a weight of a weighed feature of the carrier, or by the weight and location of a weighted feature of the carrier. Additionally, a method and apparatus for weighting the carrier in a station of the substrate processing system.
    Type: Application
    Filed: June 3, 2024
    Publication date: December 4, 2025
    Inventors: Bhaskar PRASAD, Thomas BREZOCZKY, Kirankumar Neelasandra SAVANDAIAH, Michael RICHTER
  • Publication number: 20250336703
    Abstract: A station for a substrate processing system that includes a magnetic levitation actuator assembly disposed in a first region of the station that is separated from a second region of the station by a membrane. The magnetic levitation actuator assembly is configured to contactlessly convey a carrier disposed in the second region to one or more positions within the second region.
    Type: Application
    Filed: April 30, 2024
    Publication date: October 30, 2025
    Inventors: Bhaskar PRASAD, Thomas BREZOCZKY, Kirankumar Neelasandra SAVANDAIAH, Mayank DWIVEDI, Alexander SENDOBRY
  • Publication number: 20250336702
    Abstract: A station for a substrate processing system that includes a magnetic levitation actuator assembly disposed in a first region of the station that is separated from a second region of the station by a membrane. The magnetic levitation actuator assembly is configured to contactlessly convey a carrier disposed in the second region to one or more positions within the second region.
    Type: Application
    Filed: April 30, 2024
    Publication date: October 30, 2025
    Inventors: Bhaskar PRASAD, Thomas BREZOCZKY, Kirankumar Neelasandra SAVANDAIAH, Mayank DWIVEDI, Alexander SENDOBRY
  • Publication number: 20250336704
    Abstract: A station for a substrate processing system that includes a magnetic levitation actuator assembly disposed in a first region of the station that is separated from a second region of the station by a membrane. The magnetic levitation actuator assembly is configured to contactlessly convey a carrier disposed in the second region to one or more positions within the second region.
    Type: Application
    Filed: April 30, 2024
    Publication date: October 30, 2025
    Inventors: Bhaskar PRASAD, Thomas BREZOCZKY, Kirankumar Neelasandra SAVANDAIAH, Mayank DWIVEDI, Alexander SENDOBRY
  • Publication number: 20250290196
    Abstract: Embodiments of the present disclosure include a chamber. The chamber generally includes a body and a lid assembly configured to be coupled to a top of the body. The lid assembly generally includes a housing including a first magnetic levitation actuator assembly aligned in a first direction, a second magnetic levitation actuator assembly aligned in a second direction, and a plurality of top sensors, where the first direction is different than the second direction. The lid assembly also generally includes a membrane configured to be coupled to the housing, the membrane including a plurality of recesses configured to receive the first magnetic levitation actuator assembly, the second magnetic levitation actuator assembly, and the plurality of top sensors.
    Type: Application
    Filed: March 15, 2024
    Publication date: September 18, 2025
    Inventors: Thomas BREZOCZKY, Kirankumar Neelasandra SAVANDAIAH, Bhaskar PRASAD
  • Patent number: 12381101
    Abstract: A substrate process station includes a housing including a transport region and process region. The process station further includes a magnetic levitation assembly disposed in the transport region configured to levitate and propel a substrate carrier. The magnetic levitation assembly includes a first track segment including first rails disposed in the transport region and below the process region, wherein the first rails each include a first plurality of magnets. The process station further includes a pedestal assembly comprising a pedestal disposed within the housing. The pedestal is moveable between a pedestal transfer position and a process position, wherein the pedestal is disposed between the first rails in the pedestal transfer position to receive a substrate from the substrate carrier, and wherein the pedestal is moveable between the first rails to position the received substrate in the process region in the process position.
    Type: Grant
    Filed: May 1, 2023
    Date of Patent: August 5, 2025
    Assignee: Applied Materials, Inc.
    Inventors: Bhaskar Prasad, Kirankumar Neelasandra Savandaiah, Thomas Brezoczky, Lakshmikanth Krishnamurthy Shirahatti
  • Publication number: 20250236473
    Abstract: Embodiments of the present disclosure relate to substrate transfer systems, including the use of a carrier configured to transfer objects through a substrate processing system. The carrier generally includes a base, a first magnetic levitation element and a second magnetic levitation element coupled to the base. The first magnetic levitation element and the second magnetic levitation element may be aligned in a first direction, the first magnetic levitation element may include a first array of features, and the second magnetic levitation element may include a second array of features. The carrier may also include a first support member coupled to the base and a second support member coupled to the base. The first support member and the second support member are disposed below the first magnetic levitation element and the second magnetic levitation element, and the first support member and the second support member are configured to support an object.
    Type: Application
    Filed: January 19, 2024
    Publication date: July 24, 2025
    Inventors: Bhaskar PRASAD, Thomas BREZOCZKY, Kirankumar Neelasandra SAVANDAIAH, Aditya KUMAR, Vijet PATIL
  • Patent number: 12347719
    Abstract: A floating pin for positioning a substrate relative to a substrate support includes a shaft configured to move through a guide hole in a substrate support, and a pin head including a top surface and a flat shoulder surface disposed between the top surface and the shaft. The flat shoulder surface is configured to be seated on a recessed surface of the substrate support and seal the guide hole of the substrate support.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: July 1, 2025
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Sreenath Sovenahalli, Kirankumar Neelasandra Savandaiah, Bhaskar Prasad, Srinivasa Rao Yedla, Thomas Brezoczky
  • Publication number: 20250145431
    Abstract: A method and apparatus for lifting a process station from a processing module is described herein. The apparatus includes a lift assembly disposed on the processing module, a lift cage, and one or more guide pins. The lift assembly is disposed to be capable of reaching each of the process stations disposed within the processing module. The lift assembly is used for replacement and maintenance of the process stations and further enables the automated removal and placement of the process stations within the processing module. Maintenance methods enabled by the lift assembly are additionally disclosed herein.
    Type: Application
    Filed: January 8, 2025
    Publication date: May 8, 2025
    Inventors: Bhaskar PRASAD, Kirankumar Neelasandra SAVANDAIAH, Thomas BREZOCZKY, Srinivasa Rao YEDLA
  • Patent number: D1118552
    Type: Grant
    Filed: October 24, 2023
    Date of Patent: March 17, 2026
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Bhaskar Prasad, Thomas Brezoczky, Kirankumar Neelasandra Savandaiah, Aditya Kumar, Vijet Patil
  • Patent number: D1122216
    Type: Grant
    Filed: October 2, 2023
    Date of Patent: April 14, 2026
    Assignee: Applied Materials, Inc.
    Inventors: Bhaskar Prasad, Thomas Brezoczky, Kirankumar Neelasandra Savandaiah, Aditya Kumar, Vijet Patil