Patents by Inventor Kadthala R. Narendrnath

Kadthala R. Narendrnath 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: 11569069
    Abstract: A chamber component for a processing chamber is disclosed herein. In one embodiment, a chamber component for a processing chamber includes a component part body having unitary monolithic construction. The component part body has a textured surface. The textured surface includes a plurality of independent engineered macro features integrally formed with the component part body. The engineered macro features include a macro feature body extending from the textured surface.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: January 31, 2023
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Kadthala R. Narendrnath, Govinda Raj, Goichi Yoshidome, Bopanna Ichettira Vasantha, Umesh M. Kelkar
  • Publication number: 20200365374
    Abstract: A chamber component for a processing chamber is disclosed herein. In one embodiment, a chamber component for a processing chamber includes a component part body having unitary monolithic construction. The component part body has a textured surface. The textured surface includes a plurality of independent engineered macro features integrally formed with the component part body. The engineered macro features include a macro feature body extending from the textured surface.
    Type: Application
    Filed: July 31, 2020
    Publication date: November 19, 2020
    Inventors: Kadthala R. NARENDRNATH, Govinda RAJ, Goichi YOSHIDOME, Bopanna Ichettira VASANTHA, Umesh M. KELKAR
  • Patent number: 10777391
    Abstract: A chamber component for a processing chamber is disclosed herein. In one embodiment, a chamber component for a processing chamber includes a component part body having unitary monolithic construction. The component part body has a textured surface. The textured surface includes a plurality of independent engineered macro features integrally formed with the component part body. The engineered macro features include a macro feature body extending from the textured surface.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: September 15, 2020
    Assignee: Applied Materials, Inc.
    Inventors: Kadthala R. Narendrnath, Govinda Raj, Goichi Yoshidome, Bopanna Ichettira Vasantha, Umesh M. Kelkar
  • Patent number: 10636690
    Abstract: A laminated top plate of a workpiece carrier is described that is particularly suitable for mechanical and semiconductor processing. In one example, A method of fabricating a workpiece carrier top plate includes dispensing conductive paste onto at least one of a plurality of ceramic sheets, embedding the paste between the plurality of ceramic sheets, compacting ceramic sheets together with the paste, and sintering the paste.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: April 28, 2020
    Assignee: Applied Materials, Inc.
    Inventor: Kadthala R. Narendrnath
  • Patent number: 10553473
    Abstract: An edge ring and process for fabricating an edge ring are disclosed herein. In one embodiment, an edge ring includes an annular body and a plurality of thermal breaks disposed within the annular body. The thermal breaks are disposed perpendicular to a center line of the annular body of the edge ring.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: February 4, 2020
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Govinda Raj, Kadthala R. Narendrnath, Bopanna Ichettira Vasantha, Simon Yavelberg
  • Patent number: 10399202
    Abstract: A retaining ring and a chemical mechanical planarization system (CMP) are disclosed. In one embodiment, a retaining ring for a polishing system includes a ring-shaped body having a polished inner diameter. The body has a bottom surface having grooves formed therein, an outer diameter wall, and an inner diameter wall, wherein the inner diameter wall is polished to a roughness average (Ra) of less than about 30 microinches (?in).
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: September 3, 2019
    Assignee: Applied Materials, Inc.
    Inventors: Yongqi Hu, Simon Yavelberg, Gangadhar Sheelavant, Kadthala R. Narendrnath
  • Patent number: 10177014
    Abstract: An apparatus for a substrate support heater and associated chamber components having reduced energy losses are provided. In one embodiment, a substrate support heater is provided. The substrate support heater includes a heater body having a first surface to receive a substrate and a second surface opposing the first surface, a heating element disposed in the heater body between the first surface and the second surface, and a thermal barrier disposed on the second surface of the heater body, wherein the thermal barrier comprises a first layer and a second layer disposed on the first layer.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: January 8, 2019
    Assignee: Applied Materials, Inc.
    Inventors: Govinda Raj, Daniel Martin, Robert T. Hirahara, Ashish Bhatnagar, Bopanna Vasanth, Prashanth Rao, Kadthala R. Narendrnath
  • Patent number: 10005025
    Abstract: Embodiments disclosed herein include a plasma source, and an abatement system for abating compounds produced in semiconductor processes. In one embodiment, a plasma source is disclosed. The plasma source includes a body having an inlet and an outlet, and the inlet and the outlet are fluidly coupled within the body. The body further includes inside surfaces, and the inside surfaces are coated with yttrium oxide or diamond-like carbon. The plasma source further includes a flow splitter disposed in the body in a position that formed two flow paths between the inlet and the outlet, and a plasma generator disposed in a position operable to form a plasma within the body between the flow splitter and inside surfaces of the body.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: June 26, 2018
    Assignee: Applied Materials, Inc
    Inventors: Govinda Raj, Monika Agarwal, Hamid Mohiuddin, Kadthala R. Narendrnath
  • Publication number: 20180025932
    Abstract: A laminated top plate of a workpiece carrier is described that is particularly suitable for mechanical and semiconductor processing. In one example, A method of fabricating a workpiece carrier top plate includes dispensing conductive paste onto at least one of a plurality of ceramic sheets, embedding the paste between the plurality of ceramic sheets, compacting ceramic sheets together with the paste, and sintering the paste.
    Type: Application
    Filed: November 21, 2016
    Publication date: January 25, 2018
    Inventor: Kadthala R. Narendrnath
  • Patent number: 9716012
    Abstract: Provided are methods for selective deposition. Certain methods describe providing a first substrate surface; providing a second substrate surface; depositing a first layer of film over the first and second substrate surfaces, wherein the deposition has an incubation delay over the second substrate surface such that the first layer of film over the first substrate surface is thicker than the first layer of film deposited over the second substrate surface; and etching the first layer of film over the first and second substrate surfaces, wherein the first layer of film over the second substrate surface is at least substantially removed, but the first layer of film over the first substrate is only partially removed.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: July 25, 2017
    Assignee: Applied Materials, Inc.
    Inventors: David Thompson, Huixiong Dai, Patrick M. Martin, Timothy Michaelson, Kadthala R. Narendrnath, Robert Jan Visser, Jingjing Xu, Lin Zhang
  • Patent number: 9613846
    Abstract: Embodiments are directed to an electrostatic chuck surface having minimum contact area features. More particularly, embodiments of the present invention provide an electrostatic chuck assembly having a pattern of raised, elongated surface features for providing reduced particle generation and reduced wear of substrates and chucking devices.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: April 4, 2017
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Govinda Raj, Cheng-Hsiung Tsai, Robert T. Hirahara, Kadthala R. Narendrnath, Manjunatha Koppa, Ross Marshall
  • Publication number: 20160271750
    Abstract: A retaining ring and a chemical mechanical planarization system (CMP) are disclosed. In one embodiment, a retaining ring for a polishing system includes a ring-shaped body having a polished inner diameter. The body has a bottom surface having grooves formed therein, an outer diameter wall, and an inner diameter wall, wherein the inner diameter wall is polished to a roughness average (Ra) of less than about 30 microinches (?in).
    Type: Application
    Filed: March 18, 2016
    Publication date: September 22, 2016
    Inventors: Yongqi HU, Simon YAVELBERG, Gangadhar SHEELAVANT, Kadthala R. NARENDRNATH
  • Publication number: 20160233060
    Abstract: A chamber component for a processing chamber is disclosed herein. In one embodiment, a chamber component for a processing chamber includes a component part body having unitary monolithic construction. The component part body has a textured surface. The textured surface includes a plurality of independent engineered macro features integrally formed with the component part body. The engineered macro features include a macro feature body extending from the textured surface.
    Type: Application
    Filed: February 4, 2016
    Publication date: August 11, 2016
    Inventors: Kadthala R. NARENDRNATH, Govinda RAJ, Goichi YOSHIDOME, Bopanna Ichettira VASANTHA, Umesh M. KELKAR
  • Publication number: 20160181142
    Abstract: An edge ring and process for fabricating an edge ring are disclosed herein. In one embodiment, an edge ring includes an annular body and a plurality of thermal breaks disposed within the annular body. The thermal breaks are disposed perpendicular to a center line of the annular body of the edge ring.
    Type: Application
    Filed: December 18, 2015
    Publication date: June 23, 2016
    Inventors: Govinda RAJ, Kadthala R. NARENDRNATH, Bopanna Ichettira VASANTHA, Simon YAVELBERG
  • Publication number: 20160107117
    Abstract: Embodiments disclosed herein include a plasma source, and an abatement system for abating compounds produced in semiconductor processes. In one embodiment, a plasma source is disclosed. The plasma source includes a body having an inlet and an outlet, and the inlet and the outlet are fluidly coupled within the body. The body further includes inside surfaces, and the inside surfaces are coated with yttrium oxide or diamond-like carbon. The plasma source further includes a flow splitter disposed in the body in a position that formed two flow paths between the inlet and the outlet, and a plasma generator disposed in a position operable to form a plasma within the body between the flow splitter and inside surfaces of the body.
    Type: Application
    Filed: October 7, 2015
    Publication date: April 21, 2016
    Inventors: Govinda RAJ, Monika AGARWAL, Hamid MOHIUDDIN, Kadthala R. NARENDRNATH
  • Publication number: 20150275364
    Abstract: Provided are apparatus and methods for the sequential deposition and annealing of a film within a single processing chamber. An energy source positioned within the processing chamber in an area isolated from process gases can be used to rapidly form and decompose a film on the substrate without damaging underlying layers due to exceeding the thermal budget of the device being formed.
    Type: Application
    Filed: March 24, 2015
    Publication date: October 1, 2015
    Inventors: David Thompson, Huixiong Dai, Patrick M. Martin, Timothy Michaelson, Kadthala R. Narendrnath, Robert Jan Visser, Jingjing Xu, Lin Zhang
  • Publication number: 20150162214
    Abstract: Provided are methods for selective deposition. Certain methods describe providing a first substrate surface; providing a second substrate surface; depositing a first layer of film over the first and second substrate surfaces, wherein the deposition has an incubation delay over the second substrate surface such that the first layer of film over the first substrate surface is thicker than the first layer of film deposited over the second substrate surface; and etching the first layer of film over the first and second substrate surfaces, wherein the first layer of film over the second substrate surface is at least substantially removed, but the first layer of film over the first substrate is only partially removed.
    Type: Application
    Filed: December 4, 2014
    Publication date: June 11, 2015
    Inventors: David Thompson, Huixiong Dai, Patrick M. Martin, Timothy Michaelson, Kadthala R. Narendrnath, Robert Jan Visser, Jingjing Xu, Lin Zhang
  • Publication number: 20150146339
    Abstract: Embodiments are directed to an electrostatic chuck surface having minimum contact area features. More particularly, embodiments of the present invention provide an electrostatic chuck assembly having a pattern of raised, elongated surface features for providing reduced particle generation and reduced wear of substrates and chucking devices.
    Type: Application
    Filed: November 21, 2014
    Publication date: May 28, 2015
    Inventors: Govinda RAJ, Cheng-Hsiung TSAI, Robert T. HIRAHARA, Kadthala R. NARENDRNATH, Manjunatha KOPPA, Ross MARSHALL
  • Publication number: 20140165915
    Abstract: An apparatus for a substrate support heater and associated chamber components having reduced energy losses are provided. In one embodiment, a substrate support heater is provided. The substrate support heater includes a heater body having a first surface to receive a substrate and a second surface opposing the first surface, a heating element disposed in the heater body between the first surface and the second surface, and a thermal barrier disposed on the second surface of the heater body, wherein the thermal barrier comprises a first layer and a second layer disposed on the first layer.
    Type: Application
    Filed: October 9, 2013
    Publication date: June 19, 2014
    Inventors: Govinda RAJ, Daniel MARTIN, Robert T. HIRAHARA, Ashish BHATNAGAR, Bopanna VASANTH, Prashanth RAO, Kadthala R. NARENDRNATH
  • Patent number: 8464594
    Abstract: A gas nozzle measurement apparatus comprises a controllable gas source to provide across a gas plate having gas nozzles, a flow of gas at a constant pressure or constant flow rate, and a sensor plate sized to cover an area comprising at least a portion of the front face of the gas plate. The sensor plate comprises gas flow sensors arranged in locations that correspond to positions of individual gas nozzles of the gas nozzles of the gas plate such that each gas flow sensor can measure a pressure, flow rate, density, or velocity of a gas stream passing through the individual gas nozzle that faces the gas flow sensor, and generate a signal indicative of, or display, the pressure, flow rate, density, or velocity of the gas stream passing through the individual gas nozzle.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: June 18, 2013
    Assignee: Applied Materials, Inc.
    Inventors: Kadthala R. Narendrnath, Ashish Bhatnagar, Daniel L. Martin, Robert T. Hirahara, Gangadhar Sheelavant