Patents by Inventor Anurag Kumar Mishra

Anurag Kumar Mishra 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: 11508554
    Abstract: Embodiments described herein are applicable for use in all types of plasma assisted or plasma enhanced processing chambers and also for methods of plasma assisted or plasma enhanced processing of a substrate. More specifically, embodiments of this disclosure include a broadband filter assembly, also referred to herein as a filter assembly, that is configured to reduce and/or prevent RF leakage currents from being transferred from one or more RF driven components to a ground through other electrical components that are directly or indirectly electrically coupled to the RF driven components and ground with high input impedance (low current loss) making it compatible with shaped DC pulse bias applications.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: November 22, 2022
    Assignee: Applied Materials, Inc.
    Inventors: Anurag Kumar Mishra, James Rogers, Leonid Dorf, Rajinder Dhindsa, Olivier Luere
  • Patent number: 11284500
    Abstract: Embodiments of this disclosure describe an electrode biasing scheme that enables maintaining a nearly constant sheath voltage and thus creating a mono-energetic IEDF at the surface of the substrate that consequently enables a precise control over the shape of IEDF and the profile of the features formed in the surface of the substrate.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: March 22, 2022
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Leonid Dorf, Olivier Luere, Rajinder Dhindsa, James Rogers, Sunil Srinivasan, Anurag Kumar Mishra
  • Publication number: 20200352017
    Abstract: Embodiments of this disclosure describe an electrode biasing scheme that enables maintaining a nearly constant sheath voltage and thus creating a mono-energetic IEDF at the surface of the substrate that consequently enables a precise control over the shape of IEDF and the profile of the features formed in the surface of the substrate.
    Type: Application
    Filed: July 20, 2020
    Publication date: November 5, 2020
    Inventors: Leonid DORF, Olivier LUERE, Rajinder DHINDSA, James ROGERS, Sunil SRINIVASAN, Anurag Kumar MISHRA
  • Patent number: 10791617
    Abstract: Embodiments of this disclosure describe an electrode biasing scheme that enables maintaining a nearly constant sheath voltage and thus creating a mono-energetic IEDF at the surface of the substrate that consequently enables a precise control over the shape of IEDF and the profile of the features formed in the surface of the substrate.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: September 29, 2020
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Leonid Dorf, Olivier Luere, Rajinder Dhindsa, James Rogers, Sunil Srinivasan, Anurag Kumar Mishra
  • Publication number: 20200243303
    Abstract: Embodiments described herein are applicable for use in all types of plasma assisted or plasma enhanced processing chambers and also for methods of plasma assisted or plasma enhanced processing of a substrate. More specifically, embodiments of this disclosure include a broadband filter assembly, also referred to herein as a filter assembly, that is configured to reduce and/or prevent RF leakage currents from being transferred from one or more RF driven components to a ground through other electrical components that are directly or indirectly electrically coupled to the RF driven components and ground with high input impedance (low current loss) making it compatible with shaped DC pulse bias applications.
    Type: Application
    Filed: March 15, 2019
    Publication date: July 30, 2020
    Inventors: Anurag Kumar MISHRA, James ROGERS, Leonid DORF, Rajinder DHINDSA, Olivier LUERE
  • Publication number: 20200154556
    Abstract: Embodiments of this disclosure describe an electrode biasing scheme that enables maintaining a nearly constant sheath voltage and thus creating a mono-energetic IEDF at the surface of the substrate that consequently enables a precise control over the shape of IEDF and the profile of the features formed in the surface of the substrate.
    Type: Application
    Filed: January 9, 2020
    Publication date: May 14, 2020
    Inventors: Leonid DORF, Olivier LUERE, Rajinder DHINDSA, James ROGERS, Sunil SRINIVASAN, Anurag Kumar MISHRA
  • Patent number: 10555412
    Abstract: Embodiments of this disclosure describe an electrode biasing scheme that enables maintaining a nearly constant sheath voltage and thus creating a mono-energetic IEDF at the surface of the substrate that consequently enables a precise control over the shape of IEDF and the profile of the features formed in the surface of the substrate.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: February 4, 2020
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Leonid Dorf, Olivier Luere, Rajinder Dhindsa, James Rogers, Sunil Srinivasan, Anurag Kumar Mishra
  • Publication number: 20190350072
    Abstract: Embodiments of this disclosure describe an electrode biasing scheme that enables maintaining a nearly constant sheath voltage and thus creating a mono-energetic IEDF at the surface of the substrate that consequently enables a precise control over the shape of IEDF and the profile of the features formed in the surface of the substrate.
    Type: Application
    Filed: May 10, 2018
    Publication date: November 14, 2019
    Inventors: Leonid DORF, Olivier LUERE, Rajinder DHINDSA, James ROGERS, Sunil SRINIVASAN, Anurag Kumar MISHRA
  • Patent number: 10448495
    Abstract: Embodiments of this disclosure describe an electrode biasing scheme that enables maintaining a nearly constant sheath voltage and thus creating a mono-energetic IEDF at the surface of the substrate that consequently enables a precise control over the shape of IEDF and the profile of the features formed in the surface of the substrate.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: October 15, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Leonid Dorf, Olivier Luere, Rajinder Dhindsa, James Rogers, Sunil Srinivasan, Anurag Kumar Mishra
  • Patent number: 10448494
    Abstract: Embodiments of this disclosure describe an electrode biasing scheme that enables maintaining a nearly constant sheath voltage and thus creating a mono-energetic IEDF at the surface of the substrate that consequently enables a precise control over the shape of IEDF and the profile of the features formed in the surface of the substrate.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: October 15, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Leonid Dorf, Olivier Luere, Rajinder Dhindsa, James Rogers, Sunil Srinivasan, Anurag Kumar Mishra
  • Publication number: 20190228952
    Abstract: Embodiments of the present disclosure generally relate to methods and related process equipment for forming structures on substrates, such as etching high aspect ratio structures within one or more layers formed over a substrate. The methods and related equipment described herein can improve the formation of the structures on substrates by controlling the curvature of the plasma-sheath boundary near the periphery of the substrate, for example, by generating a substantially flat plasma-sheath boundary over the entire substrate (i.e., center to edge). The methods and related equipment described below can provide control over the curvature of the plasma-sheath boundary, including generation of the flat plasma-sheath boundary by applying RF power to an edge ring surrounding the substrate using a separate and independent RF power source.
    Type: Application
    Filed: January 22, 2019
    Publication date: July 25, 2019
    Inventors: Leonid DORF, Anurag Kumar MISHRA, Olivier LUERE, Rajinder DHINDSA, James ROGERS, Denis M. KOOSAU, Sunil SRINIVASAN
  • Patent number: 10283329
    Abstract: Apparatuses and methods are provided that, in some embodiments use an adjustable middle coil to tune plasma density in a plasma processing system. For example, in one embodiment, a plasma processing apparatus includes an impedance match circuit coupled to an Rf power source. The impedance match circuit measures voltage and current at an inner and an outer coil. The match circuit calculates plasma density from the measured voltage and/or current. An adjustable middle coil located between the inner and outer coils is adjusted and/or replaced to tune the plasma density radial profile.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: May 7, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Anurag Kumar Mishra, James Rogers, John Poulose
  • Publication number: 20190013186
    Abstract: Apparatuses and methods are provided that, in some embodiments use an adjustable middle coil to tune plasma density in a plasma processing system. For example, in one embodiment, a plasma processing apparatus includes an impedance match circuit coupled to an Rf power source. The impedance match circuit measures voltage and current at an inner and an outer coil. The match circuit calculates plasma density from the measured voltage and/or current. An adjustable middle coil located between the inner and outer coils is adjusted and/or replaced to tune the plasma density radial profile.
    Type: Application
    Filed: July 10, 2017
    Publication date: January 10, 2019
    Inventors: Anurag Kumar MISHRA, James ROGERS, John POULOSE
  • Patent number: 10003655
    Abstract: A device may receive a request to establish a connection between a first device and a second device. The request may include information identifying a network connectivity type. The device may determine one or more network devices to provision based on the network connectivity type; determine, based on the network connectivity type, provisioning parameters used to provision the one or more network devices; and provision the one or more network devices in accordance with the provisioning parameters to establish the connection between the first device and the second device.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: June 19, 2018
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Anurag Kumar Mishra, Brian E. Stephenson, Chris F. Sefcik, William F. Copeland, Stephen R. Morris, Syed Ammar Ahmad
  • Publication number: 20160072894
    Abstract: A device may receive a request to establish a connection between a first device and a second device. The request may include information identifying a network connectivity type. The device may determine one or more network devices to provision based on the network connectivity type; determine, based on the network connectivity type, provisioning parameters used to provision the one or more network devices; and provision the one or more network devices in accordance with the provisioning parameters to establish the connection between the first device and the second device.
    Type: Application
    Filed: September 10, 2014
    Publication date: March 10, 2016
    Inventors: Anurag Kumar Mishra, Brian E. Stephenson, Chris F. Sefcik, William F. Copeland, Stephen R. Morris, Syed Ammar Ahmad