Patents by Inventor Nitin Bharadwaj SATYAVOLU
Nitin Bharadwaj SATYAVOLU 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).
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Patent number: 12217982Abstract: A method and apparatus for substrate processing and a cluster tool including a transfer chamber assembly and a plurality of processing assemblies. Processing chamber volumes are sealed from the transfer chamber volume using a support chuck on which a substrate is disposed. A seal ring assembly is coupled to the support chuck. The seal ring assembly includes an inner assembly, an assembly bellows circumscribing the inner assembly, and a bellows disposed between the inner and outer platform. An inner ring is disposed between inner assembly of the seal ring assembly and the bottom surface of the support chuck. An outer ring disposed between the seal ring assembly and the lower sealing surface of the process chamber wall. The support chuck is raised to form an isolation seal between the processing chamber volume and the transfer chamber volume using the bellows, the inner ring, and the outer ring.Type: GrantFiled: February 23, 2024Date of Patent: February 4, 2025Assignee: Applied Materials, Inc.Inventors: Kirankumar Neelasandra Savandaiah, Nitin Bharadwaj Satyavolu, Srinivasa Rao Yedla, Bhaskar Prasad, Thomas Brezoczky
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Publication number: 20240404861Abstract: Apparatuses for clamping a substrate on a mono-polar electrostatic chuck for deposition of photoresist films are disclosed. In an example, a lift-pin assembly includes a first metal spring, a first metal above and coupled to the first metal spring, a second metal spring above and coupled to the first metal, a second metal above and coupled to the second metal spring, and a ceramic above and coupled to the second metal.Type: ApplicationFiled: April 5, 2024Publication date: December 5, 2024Inventors: SUSHIM KOSHTI, VIJAY PARKHE, NITIN BHARADWAJ SATYAVOLU, VENUGOPAL VELLANKI, NIRANJANA BALESAN, ASHUTOSH SAWANT
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Publication number: 20240371678Abstract: 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: ApplicationFiled: July 15, 2024Publication date: November 7, 2024Inventors: Anubhav SRIVASTAVA, Bhaskar PRASAD, Kirankumar Neelasandra SAVANDAIAH, Thomas BREZOCZKY, Nitin Bharadwaj SATYAVOLU
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Publication number: 20240332046Abstract: A method and apparatus for substrate processing and a cluster tool including a transfer chamber assembly and a plurality of processing assemblies. Processing chamber volumes are sealed from the transfer chamber volume using a support chuck on which a substrate is disposed. A seal ring assembly is coupled to the support chuck. The seal ring assembly includes an inner assembly, an assembly bellows circumscribing the inner assembly, and a bellows disposed between the inner and outer platform. An inner ring is disposed between inner assembly of the seal ring assembly and the bottom surface of the support chuck. An outer ring disposed between the seal ring assembly and the lower sealing surface of the process chamber wall. The support chuck is raised to form an isolation seal between the processing chamber volume and the transfer chamber volume using the bellows, the inner ring, and the outer ring.Type: ApplicationFiled: February 23, 2024Publication date: October 3, 2024Inventors: Kirankumar Neelasandra SAVANDAIAH, Nitin Bharadwaj SATYAVOLU, Srinivasa Rao YEDLA, Bhaskar PRASAD, Thomas BREZOCZKY
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Patent number: 12100614Abstract: 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: GrantFiled: April 16, 2021Date of Patent: September 24, 2024Assignee: Applied Materials, Inc.Inventors: Anubhav Srivastava, Bhaskar Prasad, Kirankumar Neelasandra Savandaiah, Thomas Brezoczky, Nitin Bharadwaj Satyavolu
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Patent number: 12043896Abstract: Aspects of the present disclosure provide systems and apparatuses for a substrate processing assembly with a laminar flow cavity gas injection for high and low pressure. A dual gas reservoir assembly is provided in a substrate processing chamber, positioned within a lower shield assembly. A first gas reservoir is in fluid communication with a processing volume of the substrate processing assembly via a plurality of gas inlet, positioned circumferentially about the processing volume. A second gas reservoir is positioned circumferentially about the first gas reservoir, coupled therewith via one or more reservoir ports. The second gas reservoir is in fluid communication with a first gas source. A recursive path gas assembly is positioned in an upper shield body adjacent to an electrode to provide one or more gases to a dark space gap.Type: GrantFiled: June 12, 2023Date of Patent: July 23, 2024Inventors: Kirankumar Neelasandra Savandaiah, Srinivasa Rao Yedla, Nitin Bharadwaj Satyavolu, Ganesh Subbuswamy, Devi Raghavee Veerappan, Thomas Brezoczky
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Patent number: 11955355Abstract: A method and apparatus for substrate processing and a cluster tool including a transfer chamber assembly and a plurality of processing assemblies. Processing chamber volumes are sealed from the transfer chamber volume using a support chuck on which a substrate is disposed. A seal ring assembly is coupled to the support chuck. The seal ring assembly includes an inner assembly, an assembly bellows circumscribing the inner assembly, and a bellows disposed between the inner and outer platform. An inner ring is disposed between inner assembly of the seal ring assembly and the bottom surface of the support chuck. An outer ring disposed between the seal ring assembly and the lower sealing surface of the process chamber wall. The support chuck is raised to form an isolation seal between the processing chamber volume and the transfer chamber volume using the bellows, the inner ring, and the outer ring.Type: GrantFiled: February 25, 2021Date of Patent: April 9, 2024Assignee: APPLIED MATERIALS, INC.Inventors: Kirankumar Neelasandra Savandaiah, Nitin Bharadwaj Satyavolu, Srinivasa Rao Yedla, Bhaskar Prasad, Thomas Brezoczky
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Patent number: 11817331Abstract: A shutter disc for use in a cluster tool assembly having a processing chamber and a transfer arm includes an inner disc and an outer disc configured to be disposed on the inner disc. The inner disc includes a plurality of locating features configured to mate with locating pins of a transfer arm of a cluster tool assembly and a plurality of centering features configured to mate with alignment elements of a substrate support disposed in the processing chamber of the cluster tool assembly.Type: GrantFiled: July 27, 2020Date of Patent: November 14, 2023Assignee: Applied Materials, Inc.Inventors: Srinivasa Rao Yedla, Kirankumar Neelasandra Savandaiah, Thomas Brezoczky, Bhaskar Prasad, Nitin Bharadwaj Satyavolu
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Publication number: 20230323536Abstract: Aspects of the present disclosure provide systems and apparatuses for a substrate processing assembly with a laminar flow cavity gas injection for high and low pressure. A dual gas reservoir assembly is provided in a substrate processing chamber, positioned within a lower shield assembly. A first gas reservoir is in fluid communication with a processing volume of the substrate processing assembly via a plurality of gas inlet, positioned circumferentially about the processing volume. A second gas reservoir is positioned circumferentially about the first gas reservoir, coupled therewith via one or more reservoir ports. The second gas reservoir is in fluid communication with a first gas source. A recursive path gas assembly is positioned in an upper shield body adjacent to an electrode to provide one or more gases to a dark space gap.Type: ApplicationFiled: June 12, 2023Publication date: October 12, 2023Inventors: Kirankumar Neelasandra SAVANDAIAH, Srinivasa Rao YEDLA, Nitin Bharadwaj SATYAVOLU, Ganesh SUBBUSWAMY, Devi Raghavee VEERAPPAN, Thomas BREZOCZKY
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Patent number: 11674227Abstract: Aspects of the present disclosure provide systems and apparatuses for a substrate processing assembly with a laminar flow cavity gas injection for high and low pressure. A dual gas reservoir assembly is provided in a substrate processing chamber, positioned within a lower shield assembly. A first gas reservoir is in fluid communication with a processing volume of the substrate processing assembly via a plurality of gas inlet, positioned circumferentially about the processing volume. A second gas reservoir is positioned circumferentially about the first gas reservoir, coupled therewith via one or more reservoir ports. The second gas reservoir is in fluid communication with a first gas source. A recursive path gas assembly is positioned in an upper shield body adjacent to an electrode to provide one or more gases to a dark space gap.Type: GrantFiled: February 3, 2021Date of Patent: June 13, 2023Assignee: Applied Materials, Inc.Inventors: Kirankumar Neelasandra Savandaiah, Srinivasa Rao Yedla, Nitin Bharadwaj Satyavolu, Ganesh Subbuswamy, Devi Raghavee Veerappan, Thomas Brezoczky
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Patent number: 11610799Abstract: In one example, an electrostatic chuck comprises a chuck body having a top surface configured to support a substrate and a bottom surface opposite the top surface. The chuck body comprises one or more chucking electrodes, and one or more heating elements. The chuck body further comprises first terminals disposed on the bottom surface of the chuck body and coupled with the one or more heating elements, second terminals disposed on the bottom surface of the chuck body and coupled with the one or more chucking electrodes, and third terminals disposed on the bottom first surface of the chuck body and coupled with the one or more chucking electrodes.Type: GrantFiled: September 18, 2020Date of Patent: March 21, 2023Assignee: Applied Materials, Inc.Inventors: Bhaskar Prasad, Kirankumar Neelasandra Savandaiah, Srinivasa Rao Yedla, Nitin Bharadwaj Satyavolu, Hari Prasath Rajendran, Lakshmikanth Krishnamurthy Shirahatti, Thomas Brezoczky
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Patent number: 11600507Abstract: A pedestal assembly for a processing region and comprising first pins coupled to a substrate support, configured to mate with first terminals of an electrostatic chuck, and are configured to be coupled to a first power source. Each of the first pins comprises an interface element, and a compliance element supporting the interface element. Second pins are coupled to the substrate support, configured to mate with second terminals of the electrostatic chuck, and configured to couple to a second power source. Alignment elements are coupled to the substrate support and are configured to interface with centering elements of the electrostatic chuck. The flexible element is coupled to the substrate support, configured to interface with a passageway of the electrostatic chuck, and configured to be coupled to a gas source.Type: GrantFiled: September 9, 2020Date of Patent: March 7, 2023Assignee: APPLIED MATERIALS, INC.Inventors: Bhaskar Prasad, Kirankumar Neelasandra Savandaiah, Srinivasa Rao Yedla, Nitin Bharadwaj Satyavolu, Thomas Brezoczky
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Publication number: 20220406640Abstract: A method and apparatus for aligning components within a processing module are described herein. The components include a substrate transfer device, a plurality of support chuck assemblies, and adjustable bushings disposed in the processing module. The substrate transfer device includes support arms with heads configured to passively correct the location of a substrate therein. The orientation of each of the support arms of the substrate transfer device is adjusted to align with each of the support chuck assemblies. The location of a process station is then adjusted to align with one of the support chuck assemblies by calibrating the adjustable bushings which correspond to each process station.Type: ApplicationFiled: June 22, 2021Publication date: December 22, 2022Inventors: Thomas BREZOCZKY, Kirankumar Neelasandra SAVANDAIAH, Bhaskar PRASAD, Nitin Bharadwaj SATYAVOLU
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Publication number: 20220336258Abstract: 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: ApplicationFiled: April 16, 2021Publication date: October 20, 2022Inventors: Anubhav SRIVASTAVA, Bhaskar PRASAD, Kirankumar Neelasandra SAVANDAIAH, Thomas BREZOCZKY, Nitin Bharadwaj SATYAVOLU
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Publication number: 20220270898Abstract: A method and apparatus for substrate processing and a cluster tool including a transfer chamber assembly and a plurality of processing assemblies. Processing chamber volumes are sealed from the transfer chamber volume using a support chuck on which a substrate is disposed. A seal ring assembly is coupled to the support chuck. The seal ring assembly includes an inner assembly, an assembly bellows circumscribing the inner assembly, and a bellows disposed between the inner and outer platform. An inner ring is disposed between inner assembly of the seal ring assembly and the bottom surface of the support chuck. An outer ring disposed between the seal ring assembly and the lower sealing surface of the process chamber wall. The support chuck is raised to form an isolation seal between the processing chamber volume and the transfer chamber volume using the bellows, the inner ring, and the outer ring.Type: ApplicationFiled: February 25, 2021Publication date: August 25, 2022Inventors: Kirankumar Neelasandra SAVANDAIAH, Nitin Bharadwaj SATYAVOLU, Srinivasa Rao YEDLA, Bhaskar PRASAD, Thomas BREZOCZKY
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Publication number: 20220243331Abstract: Aspects of the present disclosure provide systems and apparatuses for a substrate processing assembly with a laminar flow cavity gas injection for high and low pressure. A dual gas reservoir assembly is provided in a substrate processing chamber, positioned within a lower shield assembly. A first gas reservoir is in fluid communication with a processing volume of the substrate processing assembly via a plurality of gas inlet, positioned circumferentially about the processing volume. A second gas reservoir is positioned circumferentially about the first gas reservoir, coupled therewith via one or more reservoir ports. The second gas reservoir is in fluid communication with a first gas source. A recursive path gas assembly is positioned in an upper shield body adjacent to an electrode to provide one or more gases to a dark space gap.Type: ApplicationFiled: February 3, 2021Publication date: August 4, 2022Applicants: Applied Materials, Inc., Applied Materials, Inc.Inventors: Kirankumar Neelasandra SAVANDAIAH, Srinivasa Rao YEDLA, Nitin Bharadwaj SATYAVOLU, Ganesh SUBBUSWAMY, Devi Raghavee VEERAPPAN, Thomas BREZOCZKY
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Publication number: 20220223367Abstract: Aspects of the present disclosure relate to systems and apparatuses for a substrate processing assembly with a low processing volume. In disclosed embodiments, a processing volume may include a processing space adjacent to a substrate being processed on a substrate support as well as a volume of the processing chamber surrounding and below the substrate support. In some embodiments, the total processing volume is 15 liters or less in certain embodiments, resulting in lower gas usage and faster processing times than conventional approaches. In some embodiments, the distance between the substrate and a target, electrode, chamber lid, or showerhead face is 35 mm or less in certain embodiments. In certain embodiments, the processing chamber has a dedicated pump for pumping the chamber to a processing pressure as well as evacuating the chamber after processing of the substrate.Type: ApplicationFiled: January 12, 2021Publication date: July 14, 2022Inventors: Kirankumar Neelasandra SAVANDAIAH, Srinivasa Rao YEDLA, Thomas BREZOCZKY, Nitin Bharadwaj SATYAVOLU
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Publication number: 20220093439Abstract: In one example, an electrostatic chuck comprises a chuck body having a top surface configured to support a substrate and a bottom surface opposite the top surface. The chuck body comprises one or more chucking electrodes, and one or more heating elements. The chuck body further comprises first terminals disposed on the bottom surface of the chuck body and coupled with the one or more heating elements, second terminals disposed on the bottom surface of the chuck body and coupled with the one or more chucking electrodes, and third terminals disposed on the bottom first surface of the chuck body and coupled with the one or more chucking electrodes.Type: ApplicationFiled: September 18, 2020Publication date: March 24, 2022Inventors: Bhaskar PRASAD, Kirankumar Neelasandra SAVANDAIAH, Srinivasa Rao YEDLA, Nitin Bharadwaj SATYAVOLU, Hari Prasath RAJENDRAN, Lakshmikanth Krishnamurthy SHIRAHATTI, Thomas BREZOCZKY
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Publication number: 20220076978Abstract: In one example, a substrate support for a processing chamber comprises a plurality of pins and a plurality of alignment elements. The plurality of pins are configured to mate with terminals of an electrostatic chuck. The plurality of pins are configured to be coupled to one or more power sources. The plurality of alignment elements are configured to interface with a plurality of centering elements of the electrostatic chuck to center the electrostatic chuck with the substrate support. Each of the plurality of alignment elements is configured to interface with a slot of a corresponding one of the plurality of centering elements.Type: ApplicationFiled: September 9, 2020Publication date: March 10, 2022Inventors: Bhaskar PRASAD, Kirankumar Neelasandra SAVANDAIAH, Thomas BREZOCZKY, Nitin Bharadwaj SATYAVOLU, Srinivasa Rao YEDLA
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Publication number: 20220076979Abstract: A pedestal assembly for a processing region and comprising first pins coupled to a substrate support, configured to mate with first terminals of an electrostatic chuck, and are configured to be coupled to a first power source. Each of the first pins comprises an interface element, and a compliance element supporting the interface element. Second pins are coupled to the substrate support, configured to mate with second terminals of the electrostatic chuck, and configured to couple to a second power source. Alignment elements are coupled to the substrate support and are configured to interface with centering elements of the electrostatic chuck. The flexible element is coupled to the substrate support, configured to interface with a passageway of the electrostatic chuck, and configured to be coupled to a gas source.Type: ApplicationFiled: September 9, 2020Publication date: March 10, 2022Inventors: Bhaskar PRASAD, Kirankumar Neelasandra SAVANDAIAH, Srinivasa Rao YEDLA, Nitin Bharadwaj SATYAVOLU, Thomas BREZOCZKY