Patents by Inventor Shoju Vayyapron

Shoju Vayyapron 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: 11053590
    Abstract: A nozzle for uniform plasma processing comprises an inlet portion and an outlet portion. The inlet portion has a side surface substantially parallel to a vertical axis. The inlet portion comprises a plurality of gas channels. The outlet portion is coupled to the inlet portion. The outlet portion comprises a plurality of outlets. At least one of the outlets is at an angle other than a right angle relative to the vertical axis.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: July 6, 2021
    Assignee: Applied Materials, Inc.
    Inventors: Rohit Mishra, Siva Suri Chandra Rao Bhesetti, Eng Sheng Peh, Sriskantharajah Thirunavukarasu, Shoju Vayyapron, Cheng Sun
  • Patent number: 10777442
    Abstract: Embodiments of a hybrid substrate carrier are provided herein. In some embodiments, a substrate carrier includes: a carrier ring having an inner ledge adjacent a central opening of the carrier ring; and a carrier plate having a diameter greater than central opening and configured to rest upon the inner ledge, wherein the carrier plate includes an electrode disposed beneath a support surface to electrostatically clamp a substrate to the support surface of the carrier plate.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: September 15, 2020
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Sriskantharajah Thirunavukarasu, Shoju Vayyapron, Anand Mahadev, Shankeerthan Kalyanasundaram, Eng Sheng Peh
  • Publication number: 20200017972
    Abstract: A nozzle for uniform plasma processing comprises an inlet portion and an outlet portion. The inlet portion has a side surface substantially parallel to a vertical axis. The inlet portion comprises a plurality of gas channels. The outlet portion is coupled to the inlet portion. The outlet portion comprises a plurality of outlets. At least one of the outlets is at an angle other than a right angle relative to the vertical axis.
    Type: Application
    Filed: September 26, 2019
    Publication date: January 16, 2020
    Inventors: Rohit Mishra, Siva Suri Chandra Rao Bhesetti, Eng Sheng Peh, Sriskantharajah Thirunavukarasu, Shoju Vayyapron, Cheng Sun
  • Patent number: 10465288
    Abstract: A nozzle for uniform plasma processing comprises an inlet portion and an outlet portion. The inlet portion has a side surface substantially parallel to a vertical axis. The inlet portion comprises a plurality of gas channels. The outlet portion is coupled to the inlet portion. The outlet portion comprises a plurality of outlets. At least one of the outlets is at an angle other than a right angle relative to the vertical axis.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: November 5, 2019
    Assignee: Applied Materials, Inc.
    Inventors: Rohit Mishra, Siva Suri Chandra Rao Bhesetti, Eng Sheng Peh, Sriskantharajah Thirunavukarasu, Shoju Vayyapron, Cheng Sun
  • Publication number: 20190259635
    Abstract: Embodiments of a process kit for processing reduced size substrates are provided herein. In some embodiments, a process kit includes a substrate carrier having a pocket configured to hold a substrate, wherein the pocket extends partially through a thickness of the substrate carrier; and wherein the pocket includes an annular trench disposed at a periphery of a floor of the pocket.
    Type: Application
    Filed: February 12, 2019
    Publication date: August 22, 2019
    Inventors: KARRTHIK PARATHITHASAN, FANG JIE LIM, ANAND MAHADEV, SHOJU VAYYAPRON, SRISKANTHARAJAH THIRUNAVUKARASU, ENG SHENG PEH
  • Publication number: 20190259647
    Abstract: Embodiments of a process kit for processing reduced size substrates are provided herein. In some embodiments, a process kit includes a deposition ring having an annular body; and a plurality of protrusions extending upwardly from the annular body and disposed about and equidistant from a central axis of the annular body, wherein an angle between a first protrusion and a second protrusion is between about 140° and about 180°.
    Type: Application
    Filed: February 12, 2019
    Publication date: August 22, 2019
    Inventors: SRISKANTHARAJAH THIRUNAVUKARASU, ENG SHENG PEH, FANG JIE LIM, KARRTHIK PARATHITHASAN, ANAND MAHADEV, SHOJU VAYYAPRON, CHAI BOON XIAN
  • Patent number: 10325790
    Abstract: Embodiments of methods and apparatus for correcting substrate deformity are provided herein. In some embodiments, a substrate support includes a base having an interior volume formed by walls extending upward from the base; a plurality of infrared lamps disposed within the interior volume; a support plate disposed above the plurality of infrared lamps, wherein the support plate includes a support surface to support a substrate; and a cover plate disposed atop the support plate and having a central opening corresponding to the support surface and an exhaust portion at a periphery of a top surface of the cover plate, wherein the exhaust portion includes a plurality of perforations fluidly coupling a space above the cover plate with an exhaust conduit formed in the cover plate. Embodiments of a showerhead assembly and processing equipment incorporating the inventive substrate support and showerhead assembly are additionally provided herein.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: June 18, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Eng Sheng Peh, Sriskantharajah Thirunavukarasu, Jun-Liang Su, Shoju Vayyapron, Karthik Elumalai, Dimantha Rajapaksa, Arunkumar M Tatti
  • Publication number: 20180218928
    Abstract: Embodiments of methods and apparatus for correcting substrate deformity are provided herein. In some embodiments, a substrate support includes a base having an interior volume formed by walls extending upward from the base; a plurality of infrared lamps disposed within the interior volume; a support plate disposed above the plurality of infrared lamps, wherein the support plate includes a support surface to support a substrate; and a cover plate disposed atop the support plate and having a central opening corresponding to the support surface and an exhaust portion at a periphery of a top surface of the cover plate, wherein the exhaust portion includes a plurality of perforations fluidly coupling a space above the cover plate with an exhaust conduit formed in the cover plate. Embodiments of a showerhead assembly and processing equipment incorporating the inventive substrate support and showerhead assembly are additionally provided herein.
    Type: Application
    Filed: November 13, 2017
    Publication date: August 2, 2018
    Inventors: Eng Sheng PEH, Sriskantharajah THIRUNAVUKARASU, Jun-Liang SU, Shoju VAYYAPRON, Karthik ELUMALAI, Dimantha RAJAPAKSA, Arunkumar M Tatti
  • Publication number: 20180144969
    Abstract: Embodiments of a hybrid substrate carrier are provided herein. In some embodiments, a substrate carrier includes: a carrier ring having an inner ledge adjacent a central opening of the carrier ring; and a carrier plate having a diameter greater than central opening and configured to rest upon the inner ledge, wherein the carrier plate includes an electrode disposed beneath a support surface to electrostatically clamp a substrate to the support surface of the carrier plate.
    Type: Application
    Filed: November 16, 2017
    Publication date: May 24, 2018
    Inventors: SRISKANTHARAJAH THIRUNAVUKARASU, SHOJU VAYYAPRON, ANAND MAHADEV, SHANKEERTHAN KALYANASUNDARAM, ENG SHENG PEH
  • Publication number: 20160047040
    Abstract: A nozzle for uniform plasma processing comprises an inlet portion and an outlet portion. The inlet portion has a side surface substantially parallel to a vertical axis. The inlet portion comprises a plurality of gas channels. The outlet portion is coupled to the inlet portion. The outlet portion comprises a plurality of outlets. At least one of the outlets is at an angle other than a right angle relative to the vertical axis.
    Type: Application
    Filed: August 15, 2014
    Publication date: February 18, 2016
    Inventors: ROHIT MISHRA, Siva Suri Chandra Rao Bhesetti, Eng Sheng Peh, Sriskantharajah Thirunavukarasu, Shoju Vayyapron, Cheng Sun