Patents by Inventor Yogananda SARODE
Yogananda SARODE 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: 11004722Abstract: 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: GrantFiled: June 15, 2018Date of Patent: May 11, 2021Inventors: Yogananda Sarode Vishwanath, Anand Kumar
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Publication number: 20210082730Abstract: 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: ApplicationFiled: August 19, 2020Publication date: March 18, 2021Inventors: Yogananda SARODE VISHWANATH, Steven E. BABAYAN, Stephen Donald PROUTY, Alvaro Garcia DE GORORDO, Andreas SCHMID, Andrew Antoine NOUJAIM
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Publication number: 20210048108Abstract: 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: ApplicationFiled: August 16, 2019Publication date: February 18, 2021Inventors: Andrew Nguyen, Yogananda Sarode Vishwanath, Xue Chang, Anilkumar Rayaroth, Chetan Naik, Balachandra Jatak Narayan
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Publication number: 20210013014Abstract: 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: ApplicationFiled: September 25, 2020Publication date: January 14, 2021Inventor: Yogananda SARODE VISHWANATH
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Publication number: 20200393242Abstract: 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: ApplicationFiled: June 8, 2020Publication date: December 17, 2020Applicant: Applied Materials, Inc.Inventors: Yogananda Sarode Vishwanath, Phillip A. Criminale
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Publication number: 20200373190Abstract: A process kit enclosure system includes surfaces to enclose an interior volume, a first support structure including first fins, a second support structure including second fins, and a front interface to interface the process kit enclosure system with a load port of a wafer processing system. The first and second fins are sized and spaced to hold process kit ring carriers and process kit rings in the interior volume. Each of the process kit rings is secured to one of the process kit ring carriers. The process kit enclosure system enables first automated transfer of a first process kit ring carrier securing a first process kit ring from the process kit enclosure system into the wafer processing system and second automated transfer of a second process kit ring carrier securing a second process kit ring from the wafer processing system into the process kit enclosure system.Type: ApplicationFiled: May 20, 2019Publication date: November 26, 2020Inventors: Helder Lee, Nicholas Michael Kopec, Leon Volfovski, Douglas R. McAllister, Andreas Schmid, Jeffrey Hudgens, Yogananda Sarode Vishwanath, Steven Babayan
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Patent number: 10847351Abstract: A method and apparatus for processing substrates in tandem processing regions of a plasma chamber is provided. In one example, the apparatus is embodied as a plasma chamber that includes a chamber body having a first chamber side with a first processing region and a second chamber side with a second processing region. The chamber body has a front wall and a bottom wall. A first chamber side port, a second chamber side port, and a vacuum port are disposed through the bottom wall. The vacuum port is at least part of an exhaust path for each of the processing regions. A vacuum house extends from the front wall and defines a second portion of the vacuum port. A substrate support is disposed in each of the processing regions, and a stem is coupled to each substrate support. Each stem extends through a chamber side port.Type: GrantFiled: July 15, 2019Date of Patent: November 24, 2020Assignee: APPLIED MATERIALS, INC.Inventors: Andrew Nguyen, Yogananda Sarode Vishwanath, Xue Yang Chang
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Patent number: 10790123Abstract: 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 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: GrantFiled: September 14, 2018Date of Patent: September 29, 2020Assignee: Applied Materials, Inc.Inventor: Yogananda Sarode Vishwanath
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Patent number: 10770269Abstract: 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: GrantFiled: August 15, 2017Date of Patent: September 8, 2020Assignee: 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
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Patent number: 10727096Abstract: The present disclosure generally relates to process chambers having modular design to provide variable process volume and improved flow conductance and uniformity. The modular design according to the present disclosure achieves improved process uniformity and symmetry with simplified chamber structure. The modular design further affords flexibility of performing various processes or processing substrates of various sizes by replacing one of more modules in a modular process chamber according to the present disclosure.Type: GrantFiled: August 20, 2019Date of Patent: July 28, 2020Assignee: Applied Materials, Inc.Inventors: Andrew Nguyen, Yogananda Sarode Vishwanath, Tom K. Cho
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Publication number: 20200234928Abstract: Embodiments of the disclosure generally include methods and apparatuses that improve the etch rate uniformity across a surface of a substrate by controlling the shape of a plasma sheath formed across a substrate, such as a semiconductor wafer, during plasma processing. Embodiments of the disclosure will include the adjustment of one or more plasma processing variables and/or the adjustment of the configuration of process kit hardware that is in close proximity to a substrate and/or supports the substrate during processing. Furthermore, embodiments of the disclosure will include replacement of only a small number of consumable parts within the process kit hardware while the remaining parts of the process kit hardware are reused for long periods of time without venting the process chamber. The replacement of the consumable parts can be completed using an automated method of swapping used parts without venting process chamber.Type: ApplicationFiled: November 1, 2019Publication date: July 23, 2020Inventor: Yogananda Sarode VISHWANATH
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Publication number: 20200185248Abstract: 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: ApplicationFiled: December 11, 2018Publication date: June 11, 2020Inventors: Yogananda SARODE VISHWANATH, Steven E. BABAYAN, Stephen Donald PROUTY, Álvaro GARCÍA DE GORORDO, Andreas SCHMID, Andrew Antoine NOUJAIM
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Patent number: 10672591Abstract: Embodiments of an apparatus for removing particles from a twin chamber processing system are provided herein. In some embodiments, an apparatus for removing particles from a twin chamber processing system includes a remote plasma system; and a plurality of conduits fluidly coupling the remote plasma system to each process chamber of a twin chamber processing system to provide a plasma to an exhaust volume of each process chamber, wherein each conduit of the plurality of conduits has an outlet disposed along a boundary of the respective exhaust volumes.Type: GrantFiled: August 8, 2013Date of Patent: June 2, 2020Assignee: APPLIED MATERIALS, INC.Inventors: Andrew Nguyen, Tom K. Cho, Kartik Ramaswamy, Yogananda Sarode Vishwanath
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Patent number: 10600623Abstract: 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. The second ring component has an inner thickness that is less than an outer thickness, and at least a portion of an upper surface of the second ring component is inwardly angled towards the ring first component. The adjustable tuning ring has an upper surface that contacts the lower surface of the second ring component. The actuating mechanism is interfaced with the lower surface of the adjustable tuning ring and 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: GrantFiled: September 14, 2018Date of Patent: March 24, 2020Assignee: APPLIED MATERIALS, INC.Inventor: Yogananda Sarode Vishwanath
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Publication number: 20190371627Abstract: The present disclosure generally relates to process chambers having modular design to provide variable process volume and improved flow conductance and uniformity. The modular design according to the present disclosure achieves improved process uniformity and symmetry with simplified chamber structure. The modular design further affords flexibility of performing various processes or processing substrates of various sizes by replacing one of more modules in a modular process chamber according to the present disclosure.Type: ApplicationFiled: August 20, 2019Publication date: December 5, 2019Inventors: Andrew NGUYEN, Yogananda SARODE VISHWANATH, Tom K. CHO
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Publication number: 20190362949Abstract: 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 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: ApplicationFiled: September 14, 2018Publication date: November 28, 2019Inventor: Yogananda SARODE VISHWANATH
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Publication number: 20190362948Abstract: 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. The second ring component has an inner thickness that is less than an outer thickness, and at least a portion of an upper surface of the second ring component is inwardly angled towards the ring first component. The adjustable tuning ring has an upper surface that contacts the lower surface of the second ring component. The actuating mechanism is interfaced with the lower surface of the adjustable tuning ring and 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: ApplicationFiled: September 14, 2018Publication date: November 28, 2019Inventor: Yogananda SARODE VISHWANATH
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Publication number: 20190363003Abstract: 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: ApplicationFiled: September 14, 2018Publication date: November 28, 2019Inventor: Yogananda SARODE VISHWANATH
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Publication number: 20190341233Abstract: Embodiments described herein include a processing tool comprising configured for rapid and stable changes in the processing pressure. In an embodiment, the processing tool may comprises a chamber body. In an embodiment, the chamber body is a vacuum chamber. The processing tool may further comprise a chuck for supporting a substrate in the chamber body. In an embodiment, the processing tool may also comprise a cathode liner surrounding the chuck and a flow confinement ring aligned with the cathode liner. In an embodiment, the cathode liner and the flow confinement ring define an opening between a main processing volume and a peripheral volume of the vacuum chamber.Type: ApplicationFiled: April 4, 2019Publication date: November 7, 2019Inventors: Andrew Nguyen, Yogananda Sarode Vishwanath, Xue Chang
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Publication number: 20190341236Abstract: A method and apparatus for processing substrates in tandem processing regions of a plasma chamber is provided. In one example, the apparatus is embodied as a plasma chamber that includes a chamber body having a first chamber side with a first processing region and a second chamber side with a second processing region. The chamber body has a front wall and a bottom wall. A first chamber side port, a second chamber side port, and a vacuum port are disposed through the bottom wall. The vacuum port is at least part of an exhaust path for each of the processing regions. A vacuum house extends from the front wall and defines a second portion of the vacuum port. A substrate support is disposed in each of the processing regions, and a stem is coupled to each substrate support. Each stem extends through a chamber side port.Type: ApplicationFiled: July 15, 2019Publication date: November 7, 2019Inventors: Andrew NGUYEN, Yogananda SARODE VISHWANATH, Xue Yang CHANG