Patents by Inventor K. Subramani

K. Subramani 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: 11315763
    Abstract: Plasma source assemblies comprising an RF hot electrode having a body and at least one return electrode spaced from the RF hot electrode to provide a gap in which a plasma can be formed. An RF feed is connected to the RF hot electrode at a distance from the inner peripheral end of the RF hot electrode that is less than or equal to about 25% of the length of the RF hot electrode. The RF hot electrode can include a leg and optional triangular portion near the leg that extends at an angle to the body of the RF hot electrode. A cladding material on one or more of the RF hot electrode and the return electrode can be variably spaced or have variable properties along the length of the plasma gap.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: April 26, 2022
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Kallol Bera, Dmitry A. Dzilno, Anantha K. Subramani, John C. Forster, Tsutomu Tanaka
  • Patent number: 11315769
    Abstract: Plasma source assemblies comprising an RF hot electrode having a body and at least one return electrode spaced from the RF hot electrode to provide a gap in which a plasma can be formed. An RF feed is connected to the RF hot electrode at a distance from the inner peripheral end of the RF hot electrode that is less than or equal to about 25% of the length of the RF hot electrode.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: April 26, 2022
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Kallol Bera, Anantha K. Subramani, John C. Forster, Philip A. Kraus, Farzad Houshmand, Hanhong Chen
  • Patent number: 11289312
    Abstract: Embodiments of process kit shields and process chambers incorporating same are provided herein. In some embodiments a process kit configured for use in a process chamber for processing a substrate includes a shield having a cylindrical body having an upper portion and a lower portion; an adapter section configured to be supported on walls of the process chamber and having a resting surface to support the shield; and a heater coupled to the adapter section and configured to be electrically coupled to at least one power source of the processes chamber to heat the shield.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: March 29, 2022
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Adolph M. Allen, Vanessa Faune, Zhong Qiang Hua, Kirankumar Neelasandra Savandaiah, Anantha K. Subramani, Philip A. Kraus, Tza-Jing Gung, Lei Zhou, Halbert Chong, Vaibhav Soni, Kishor Kalathiparambil
  • Publication number: 20220056584
    Abstract: A method includes receiving one or more parameters associated with a plurality of metal plates. The method further includes determining, based on the one or more parameters, a plurality of predicted deformation values associated with the plurality of metal plates. Each of the plurality of predicted deformation values correspond to a corresponding metal plate of the plurality of metal plates. The method further includes causing, based on the plurality of predicted deformation values, the plurality of metal plates to be diffusion bonded to produce a bonded metal plate structure.
    Type: Application
    Filed: August 24, 2020
    Publication date: February 24, 2022
    Inventors: Sumit Agarwal, Anantha K. Subramani, Yang Guo, Siva Chandrasekar
  • 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
  • Publication number: 20220037136
    Abstract: A deposition system, and a method of operation thereof, includes: a cathode; a shroud below the cathode; a rotating shield below the cathode for exposing the cathode through the shroud and through a shield hole of the rotating shield; and a rotating pedestal for producing a material to form a carrier over the rotating pedestal, wherein the material having a non-uniformity constraint of less than 1% of a thickness of the material and the cathode having an angle between the cathode and the carrier.
    Type: Application
    Filed: October 18, 2021
    Publication date: February 3, 2022
    Applicant: Applied Materials, Inc.
    Inventors: Anantha K. Subramani, Deepak Jadhav, Ashish Goel, Hanbing Wu, Prashanth Kothnur, Chi Hong Ching
  • Publication number: 20220028710
    Abstract: Exemplary substrate processing systems may include a chamber body defining a transfer region. The systems may include a first lid plate seated on the chamber body along a first surface of the first lid plate. The first lid plate may define a plurality of apertures through the first lid plate. The systems may include a plurality of lid stacks equal to a number of apertures of the plurality of apertures defined through the first lid plate. The systems may include a plurality of isolators. An isolator of the plurality of isolators may be positioned between each lid stack of the plurality of lid stacks and a corresponding aperture of the plurality of apertures defined through the first lid plate. The systems may include a plurality of dielectric plates. A dielectric plate of the plurality of dielectric plates may be seated on each isolator of the plurality of isolators.
    Type: Application
    Filed: July 21, 2020
    Publication date: January 27, 2022
    Applicant: Applied Materials, Inc.
    Inventors: Anantha K. Subramani, Yang Guo, Seyyed Abdolreza Fazeli, Nitin Pathak, Badri N. Ramamurthi, Kallol Bera, Xiaopu Li, Philip A. Kraus, Swaminathan T. Srinivasan
  • 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
  • Patent number: 11183375
    Abstract: A deposition system, and a method of operation thereof, includes: a cathode; a shroud below the cathode; a rotating shield below the cathode for exposing the cathode through the shroud and through a shield hole of the rotating shield; and a rotating pedestal for producing a material to form a carrier over the rotating pedestal, wherein the material having a non-uniformity constraint of less than 1% of a thickness of the material and the cathode having an angle between the cathode and the carrier.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: November 23, 2021
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Anantha K. Subramani, Deepak Jadhav, Ashish Goel, Hanbing Wu, Prashanth Kothnur, Chi Hong Ching
  • Patent number: 11170982
    Abstract: Methods and apparatus for low angle, selective plasma deposition on a substrate. A plasma chamber uses a process chamber having an inner processing volume, a three dimensional (3D) magnetron with a sputtering target with a hollow inner area that overlaps at least a portion of sides of the sputtering target and moves in a linear motion over a length of the sputtering target, a housing surrounding the 3D magnetron and the sputtering target such that at least one side of the housing exposes the hollow inner area of the sputtering target, and a linear channel interposed between the housing and a wall of the process chamber.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: November 9, 2021
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Anantha K. Subramani, Praburam Raja, Steven V. Sansoni, John Forster, Philip Kraus, Yang Guo, Prashanth Kothnur, Farzad Houshmand, Bencherki Mebarki, John Joseph Mazzocco, Thomas Brezoczky
  • Publication number: 20210305020
    Abstract: Embodiments disclosed herein include an RF return assembly. In an embodiment, the RF return assembly comprises a first plate with a flange, where a first hole and a second hole pass through the flange. The RF return assembly may further comprise a second plate over the first plate, and a first body positioned above the flange. In an embodiment, the RF return assembly further comprises a second body positioned below the flange, where the first body is affixed to the second body by a pillar that passes through the first hole. In an embodiment, the RF return assembly further comprises a spring attached between the second plate and the second body, where the spring passes through the second hole, and a conductive band to electrically couple the first body to the flange.
    Type: Application
    Filed: March 25, 2020
    Publication date: September 30, 2021
    Inventors: Anantha K. Subramani, Arun Kumar Kotrappa, Hanish Panavalappil Kumarankutty Kumar, Ramcharan Sundar
  • Patent number: 11101117
    Abstract: Embodiments of a method and apparatus for co-sputtering multiple target materials are provided herein. In some embodiments, a process chamber including a substrate support to support a substrate; a plurality of cathodes coupled to a carrier and having a corresponding plurality of targets to be sputtered onto the substrate; and a process shield coupled to the carrier and extending between adjacent pairs of the plurality of targets.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: August 24, 2021
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Anantha K. Subramani, Hanbing Wu, Wei W. Wang, Ashish Goel, Srinivas Guggilla, Lavinia Nistor
  • Publication number: 20210210312
    Abstract: Plasma source assemblies comprising a housing with an RF hot electrode having a body and a plurality of source electrodes extending vertically from the RF hot electrode toward the opening in a front face of the housing are described. Processing chambers incorporating the plasma source assemblies and methods of using the plasma source assemblies are also described.
    Type: Application
    Filed: December 29, 2020
    Publication date: July 8, 2021
    Inventors: Anantha K. Subramani, Farzad Houshmand, Philip A. Kraus, Abhishek Chowdhury, John C. Forster, Kallol Bera
  • Patent number: 11043364
    Abstract: Embodiments of a process kit for use in a multi-cathode process chamber are disclosed herein. In some embodiments, a process kit includes a rotatable shield having a base, a conical portion extend downward and radially outward from the base, and a collar portion extending radially outward from a bottom of the conical portion; an inner deposition ring having a leg portion, a flat portion extending radially inward from the leg portion, a first recessed portion extending radially inward from the flat portion, and a first lip extending upward from an innermost section of the first recessed portion; and an outer deposition ring having a collar portion, an upper flat portion disposed above and extending radially inward from the collar portion, a second recessed portion extending inward from the upper flat portion, and a second lip extending upward from an innermost section of the second recessed portion.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: June 22, 2021
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Hanbing Wu, Anantha K. Subramani, Ashish Goel, Deepak Jadhav, Rongjun Wang, Chi Hong Ching
  • Publication number: 20210166923
    Abstract: Plasma source assemblies comprising an RF hot electrode having a body and at least one return electrode spaced from the RF hot electrode to provide a gap in which a plasma can be formed. An RF feed is connected to the RF hot electrode at a distance from the inner peripheral end of the RF hot electrode that is less than or equal to about 25% of the length of the RF hot electrode.
    Type: Application
    Filed: January 15, 2021
    Publication date: June 3, 2021
    Applicant: Applied Materials, Inc.
    Inventors: Kallol Bera, Anantha K. Subramani, John C. Forster, Philip A. Kraus, Farzad Houshmand, Hanhong Chen
  • Patent number: 11011357
    Abstract: Methods and apparatus for processing substrates with a multi-cathode chamber. The multi-cathode chamber includes a shield with a plurality of holes and a plurality of shunts. The shield is rotatable to orient the holes and shunts with a plurality of cathodes located above the shield. The shunts interact with magnets from the cathodes to prevent interference during processing. The shield can be raised and lowered to adjust gapping between a target of a cathode and a hole to provide a dark space during processing.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: May 18, 2021
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Hanbing Wu, Anantha K. Subramani, Ashish Goel, Xiaodong Wang, Wei W. Wang, Rongjun Wang, Chi Hong Ching
  • Patent number: 10927449
    Abstract: Embodiments of the present disclosure provide a sputtering chamber with in-situ ion implantation capability. In one embodiment, the sputtering chamber comprises a target, an RF and a DC power supplies coupled to the target, a support body comprising a flat substrate receiving surface, a bias power source coupled to the support body, a pulse controller coupled to the bias power source, wherein the pulse controller applies a pulse control signal to the bias power source such that the bias power is delivered either in a regular pulsed mode having a pulse duration of about 100-200 microseconds and a pulse repetition frequency of about 1-200 Hz, or a high frequency pulsed mode having a pulse duration of about 100-300 microseconds and a pulse repetition frequency of about 200 Hz to about 20 KHz, and an exhaust assembly having a concentric pumping port formed through a bottom of the processing chamber.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: February 23, 2021
    Assignee: Applied Materials, Inc.
    Inventors: Jingjing Liu, Ludovic Godet, Srinivas D. Nemani, Yongmei Chen, Anantha K. Subramani
  • Publication number: 20210050187
    Abstract: Plasma source assemblies, gas distribution assemblies including the plasma source assembly and methods of generating plasma are described. The plasma source assemblies include a powered electrode with a ground electrode adjacent a first side and a dielectric adjacent a second side. A first microwave generator is electrically coupled to the first end of the powered electrode through a first feed and a second microwave generator is electrically coupled to the second end of the powered electrode through a second feed.
    Type: Application
    Filed: March 1, 2019
    Publication date: February 18, 2021
    Applicant: Applied Materials, Inc.
    Inventors: Jozef Kudela, Tsutomu Tanaka, Alexander V. Garachtchenko, Dmitry A. Dzilno, Avinash Shervegar, Kallol Bera, Xiaopu Li, Anantha K. Subramani, John C. Forster
  • Publication number: 20210033197
    Abstract: Described are isolation valves, and chamber systems incorporating and methods of using the isolation valves. In some embodiments, an isolation valve may include a valve body and a flapper assembly. The valve body may define a first fluid volume, a second fluid volume, and a seating surface. The flapper assembly may include a flapper disposed inside the valve body having a flapper surface complimentary to the seating surface. The flapper may be pivotable within the valve body to a first position such that the flapper surface may be away from the seating surface to allow fluid flow between the first fluid volume and the second fluid volume. The flapper may be pivotable within the valve body to a second position such that the flapper surface may be proximate the seating surface to form a non-contact seal to restrict fluid flow between the first fluid volume and the second fluid volume.
    Type: Application
    Filed: July 22, 2020
    Publication date: February 4, 2021
    Applicant: Applied Materials, Inc.
    Inventors: Benjamin Riordon, Anatha K. Subramani, Charles T. Carlson
  • Patent number: 10903056
    Abstract: Plasma source assemblies comprising an RF hot electrode having a body and at least one return electrode spaced from the RF hot electrode to provide a gap in which a plasma can be formed. An RF feed is connected to the RF hot electrode at a distance from the inner peripheral end of the RF hot electrode that is less than or equal to about 25% of the length of the RF hot electrode.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: January 26, 2021
    Assignee: Applied Materials, Inc.
    Inventors: Kallol Bera, Anantha K. Subramani, John C. Forster, Philip A. Kraus, Farzad Houshmand, Hanhong Chen