Patents by Inventor Sriharish SRINIVASAN

Sriharish SRINIVASAN 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).

  • Publication number: 20240093367
    Abstract: Embodiments of part coating reactors are provided herein. In some embodiments, a part coating reactor includes a lid assembly, comprising: a body that includes a central region and a peripheral region, wherein the body includes a central opening in the central region, a first annular heater groove disposed radially outward of the central opening, and a second annular heater groove disposed radially outward of the first annular heater groove, wherein the peripheral region includes a plurality of vertical slots that extend from an upper surface of the body, and wherein a lower surface of the body includes an annular alignment groove; and a blocker plate including a substantially flat plate having a plurality of holes disposed therethrough and an annular wall extending above and below the flat plate, wherein an upper surface of the annular wall is disposed in the annular alignment groove of the body.
    Type: Application
    Filed: September 16, 2022
    Publication date: March 21, 2024
    Inventors: Sriharsha DHARMAPURA SATHYANARAYANAMURTHY, Hanish Kumar PANAVALAPPIL KUMARANKUTTY, Kirubanandan Naina SHANMUGAM, Manojkumar SHANMUGASUNDARAM, Sriharish SRINIVASAN
  • Publication number: 20230307213
    Abstract: The disclosure describes a plasma source assemblies comprising a differential screw assembly, an RF hot electrode, a top cover, an upper housing and a lower housing. The differential screw assembly is configured to provide force to align the plasma source assembly vertically matching planarity of a susceptor. More particularly, the differential screw assembly increases a distance between the top cover and the upper housing to align the gap with the susceptor. The disclosure also provides a better thermal management by cooling fins. A temperature capacity of the plasma source assemblies is extended by using titanium electrode. The disclosure provides a cladding material covering a portion of a first surface of RF hot electrode, a second surface of RF hot electrode, a bottom surface of RF hot electrode, a portion of a surface of the showerhead and a portion of lower housing surface.
    Type: Application
    Filed: June 5, 2023
    Publication date: September 28, 2023
    Applicant: Applied Materials, Inc.
    Inventors: Tsutomu Tanaka, Jared Ahmad Lee, Rakesh Ramadas, Dmitry A. Dzilno, Gregory J. Wilson, Sriharish Srinivasan
  • Patent number: 11705312
    Abstract: The disclosure describes a plasma source assemblies comprising a differential screw assembly, an RF hot electrode, a top cover, an upper housing and a lower housing. The differential screw assembly is configured to provide force to align the plasma source assembly vertically matching planarity of a susceptor. More particularly, the differential screw assembly increases a distance between the top cover and the upper housing to align the gap with the susceptor. The disclosure also provides a better thermal management by cooling fins. A temperature capacity of the plasma source assemblies is extended by using titanium electrode. The disclosure provides a cladding material covering a portion of a first surface of RF hot electrode, a second surface of RF hot electrode, a bottom surface of RF hot electrode, a portion of a surface of the showerhead and a portion of lower housing surface.
    Type: Grant
    Filed: December 26, 2020
    Date of Patent: July 18, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Tsutomu Tanaka, Jared Ahmad Lee, Rakesh Ramadas, Dmitry A. Dzilno, Gregory J. Wilson, Sriharish Srinivasan
  • Publication number: 20230073150
    Abstract: Embodiments of heated lids for a process chamber are provided herein. In some embodiments, a heated lid includes: a body having a central region and a peripheral region, wherein the body includes a central opening in the central region, wherein the peripheral region includes a plurality of vertical slots that extend into an upper surface of the body and arranged along a circle to provide a thermal break, and wherein the body includes one or more annular plenums that extend into the upper surface of the body and a plurality of holes extending through a bottom surface of the one or more annular plenums to a lower surface of the body; a first heater ring having one or more heating elements disposed therein, wherein the first heater ring is coupled to the central region of the body; and a second heater ring having one or more heating elements disposed therein.
    Type: Application
    Filed: September 9, 2021
    Publication date: March 9, 2023
    Inventors: Shivaprakash Padadayya HIREMATH, Hanish Kumar PANAVALAPPIL KUMARANKUTTY, Kirubanandan Naina SHANMUGAM, Madhukar KRISHNA, Sriharsha DHARMAPURA SATHYANARAYANAMURTHY, Sriharish SRINIVASAN
  • Patent number: 11581213
    Abstract: Apparatus and methods for vacuum chucking a substrate to a susceptor. The susceptor comprises one or more angularly spaced pockets are positioned around a center axis of the susceptor, the one or more angularly spaced pockets having an inner pocket and an outer pocket. The susceptor can be configured as an intermediate chuck having one or more pucks positioned within the inner pocket or as a distributed chuck having one or more pucks positioned within the outer pocket. The one or more pucks has a center hole, at least one radial channel and at least one circular channel having chuck holes for vacuum chucking a substrate.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: February 14, 2023
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Abhishek Chowdhury, Vijayabhaskara Venkatagiriyappa, Mihaela A. Balseanu, Jyoti Prakash Deo, Srinivas Ramakrishna, Keiichi Tanaka, Mandyam Sriram, Francis Kanyiri Mungai, Mario D. Silvetti, Sriharish Srinivasan
  • Publication number: 20220208531
    Abstract: The disclosure describes a plasma source assemblies comprising a differential screw assembly, an RF hot electrode, a top cover, an upper housing and a lower housing. The differential screw assembly is configured to provide force to align the plasma source assembly vertically matching planarity of a susceptor. More particularly, the differential screw assembly increases a distance between the top cover and the upper housing to align the gap with the susceptor. The disclosure also provides a better thermal management by cooling fins. A temperature capacity of the plasma source assemblies is extended by using titanium electrode. The disclosure provides a cladding material covering a portion of a first surface of RF hot electrode, a second surface of RF hot electrode, a bottom surface of RF hot electrode, a portion of a surface of the showerhead and a portion of lower housing surface.
    Type: Application
    Filed: December 26, 2020
    Publication date: June 30, 2022
    Applicant: Applied Materials, Inc.
    Inventors: Tsutomu Tanaka, Jared Ahmad Lee, Rakesh Ramadas, Dmitry A. Dzilno, Gregory J. Wilson, Sriharish Srinivasan
  • Publication number: 20220093443
    Abstract: Apparatus and methods for vacuum chucking a substrate to a susceptor. The susceptor comprises one or more angularly spaced pockets are positioned around a center axis of the susceptor, the one or more angularly spaced pockets having an inner pocket and an outer pocket. The susceptor can be configured as an intermediate chuck having one or more pucks positioned within the inner pocket or as a distributed chuck having one or more pucks positioned within the outer pocket. The one or more pucks has a center hole, at least one radial channel and at least one circular channel having chuck holes for vacuum chucking a substrate.
    Type: Application
    Filed: September 23, 2020
    Publication date: March 24, 2022
    Applicant: Applied Materials, Inc.
    Inventors: Abhishek Chowdhury, Vijayabhaskara Venkatagiriyappa, Mihaela A. Balseanu, Jyoti Prakash Deo, Srinivas Ramakrishna, Keiichi Tanaka, Mandyam Sriram, Francis Kanyiri Mungai, Mario D. Silvetti, Sriharish Srinivasan
  • Publication number: 20210249239
    Abstract: Embodiments of exhaust liner systems are provided herein. In some embodiments, an exhaust liner system for use in a process chamber includes a lower exhaust liner having an annular body with a central opening; an upper flange, a central flange, and a lower flange extending outward from the annular body, wherein the lower flange and the central flange partially define a first plenum, and wherein the central flange and the upper flange partially define a second plenum; a plurality of exhaust holes from the central opening to the first plenum; and at least one cutout in the central flange to provide a flow path from the first plenum to the second plenum, wherein the lower exhaust liner defines a gas flow path from the central opening to the first plenum via the plurality of exhaust holes and from the first plenum to the second plenum via the least one cutout.
    Type: Application
    Filed: February 4, 2021
    Publication date: August 12, 2021
    Inventors: Naman APURVA, Lara A. HAWRYLCHAK, Mahesh RAMAKRISHNA, Sriharish SRINIVASAN, Prashant AGARWAL