Patents by Inventor Vinayak Vishwanath Hassan

Vinayak Vishwanath Hassan 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: 20230343586
    Abstract: Embodiments of the present disclosure generally relate to methods for cleaning a chamber comprising introducing a gas to a processing volume of the chamber, providing a first radiofrequency (RF) power having a first frequency of about 40 MHz or greater to a lid of the chamber, providing a second RF power having a second frequency to an electrode disposed in a substrate support within the processing volume, and removing at least a portion of a film disposed on a surface of a chamber component of the chamber. The second frequency is about 10 MHz to about 20 MHz.
    Type: Application
    Filed: June 27, 2023
    Publication date: October 26, 2023
    Applicant: Applied Materials, Inc.
    Inventors: Anup Kumar SINGH, Rick KUSTRA, Vinayak Vishwanath HASSAN, Bhaskar KUMAR, Krishna NITTALA, Pramit MANNA, Kaushik ALAYAVALLI, Ganesh BALASUBRAMANIAN
  • Patent number: 11721545
    Abstract: Embodiments of the present disclosure generally relate to methods of depositing carbon film layers greater than 3,000 ? in thickness over a substrate and surface of a lid of a chamber using dual frequency, top, sidewall and bottom sources. The method includes introducing a gas to a processing volume of a chamber. A first radiofrequency (RF) power is provided having a first frequency of about 40 MHz or greater to a lid of the chamber. A second RF power is provided having a second frequency to a bias electrode disposed in a substrate support within the processing volume. The second frequency is about 10 MHz to about 40 MHz. An additional third RF power is provided having lower frequency of about 400 kHz to about 2 MHz to the bias electrode.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: August 8, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Anup Kumar Singh, Rick Kustra, Vinayak Vishwanath Hassan, Bhaskar Kumar, Krishna Nittala, Pramit Manna, Kaushik Comandoor Alayavalli, Ganesh Balasubramanian
  • Publication number: 20230069395
    Abstract: Exemplary methods of manufacturing a semiconductor cover wafer may include sintering aluminum nitride particles into a substrate characterized by a thickness and characterized by a disc shape. The methods may include grinding a surface of the substrate to reduce the thickness to less than or about 2 mm. The methods may include polishing the surface of the substrate to reduce a roughness. The methods may include annealing the substrate at a temperature of greater than or about 800° C. for a time period of greater than or about 60 minutes.
    Type: Application
    Filed: August 30, 2021
    Publication date: March 2, 2023
    Applicant: Applied Materials, Inc.
    Inventors: Vinayak Vishwanath Hassan, Bhaskar Kumar, Meng Cai, Sowjanya Musunuru, Kaushik Alayavalli, Andrew Nguyen
  • Publication number: 20220178026
    Abstract: A method includes flowing a carbon-containing precursor and a carrier gas into a processing volume having a substrate positioned therein, generating a plasma in the processing volume by applying a first RF bias to a substrate support to deposit a first portion of carbon film onto the substrate, and terminating flow of the carbon-containing precursor while maintaining flow of the carrier gas to maintain the plasma within the processing volume. The method also includes flowing a nitrogen-containing gas into the processing volume and ionizing the nitrogen-containing gas in the presence of the plasma, exposing the substrate having the carbon film thereon to the ionized nitrogen-containing gas for a time period less than three seconds, and terminating flow of the nitrogen-containing gas while maintaining the plasma and reintroducing the carbon-containing precursor into the processing volume in the presence of the plasma to deposit a second portion of the carbon film.
    Type: Application
    Filed: December 3, 2020
    Publication date: June 9, 2022
    Inventors: Vinayak Vishwanath HASSAN, Anup Kumar SINGH, Bhaskar KUMAR
  • Publication number: 20220178017
    Abstract: In one example, a method includes flowing a carbon-containing gas into a processing volume of a process chamber, the process chamber having internal surfaces comprising aluminum, and depositing a carbon film on the internal surfaces of the process chamber. The method also includes flowing fluorine radicals into the process chamber, and fluorinating the carbon film to create a CFx layer on the internal surfaces. The method also includes oxidizing the CFx layer on the internal surfaces creating an AlOCFx layer on the internal surfaces.
    Type: Application
    Filed: December 3, 2020
    Publication date: June 9, 2022
    Inventors: Anup Kumar SINGH, Vinayak Vishwanath HASSAN, Bhaskar KUMAR, Ganesh BALASUBRAMANIAN
  • Publication number: 20220122821
    Abstract: Embodiments of the present disclosure relate to semiconductor processing. More specifically, embodiments of the present disclosure relate to methods for seasoning one or more components of a process chamber. In at least one embodiment, a method for seasoning a process chamber includes depositing a seasoning film onto a component of the process chamber at a chamber pressure of about 4 mTorr to about 20 mTorr and a temperature below about 200° C. or about 200° C. to about 400° C. The method includes depositing a deposition film onto the seasoning film. In at least one embodiment, a method includes introducing a nitrogen-containing gas to the seasoning film to form a nitrogen-treated seasoning film. Introducing the nitrogen-containing gas to the seasoning film is performed before depositing the deposition film onto the seasoning film.
    Type: Application
    Filed: October 21, 2020
    Publication date: April 21, 2022
    Inventors: Vinayak Vishwanath HASSAN, Bhaskar KUMAR, Anup Kumar SINGH
  • Publication number: 20220102141
    Abstract: Embodiments of the present disclosure generally relate to methods of depositing carbon film layers greater than 3,000 ? in thickness over a substrate and surface of a lid of a chamber using dual frequency, top, sidewall and bottom sources. The method includes introducing a gas to a processing volume of a chamber. A first radiofrequency (RF) power is provided having a first frequency of about 40 MHz or greater to a lid of the chamber. A second RF power is provided having a second frequency to a bias electrode disposed in a substrate support within the processing volume. The second frequency is about 10 MHz to about 40 MHz. An additional third RF power is provided having lower frequency of about 400 kHz to about 2 MHz to the bias electrode.
    Type: Application
    Filed: September 28, 2020
    Publication date: March 31, 2022
    Inventors: Anup Kumar SINGH, Rick KUSTRA, Vinayak Vishwanath HASSAN, Bhaskar KUMAR, Krishna NITTALA, Pramit MANNA, Kaushik Comandoor ALAYAVALLI, Ganesh BALASUBRAMANIAN
  • Publication number: 20220064797
    Abstract: A lid for a process chamber includes a plate having a first surface and a second surface opposite the first surface. The first surface has a recess and a seal groove formed in the first surface and surrounding the recess. The lid further includes an array of holes extending from the recess to the second surface.
    Type: Application
    Filed: August 16, 2021
    Publication date: March 3, 2022
    Inventors: Akshay DHANAKSHIRUR, Juan Carlos ROCHA-ALVAREZ, Kaushik Comandoor ALAYAVALLI, Jay D. PINSON, II, Rick KUSTRA, Badri N. RAMAMURTHI, Anup Kumar SINGH, Ganesh BALASUBRAMANIAN, Bhaskar KUMAR, Vinayak Vishwanath HASSAN, Canfeng LAI, Kallol BERA, Sathya Swaroop GANTA
  • Publication number: 20210351020
    Abstract: Apparatus and methods for generating a flow of radicals are provided. An ion blocker is positioned a distance from a faceplate of a remote plasma source. The ion blocker has openings to allow the plasma to flow through. The ion blocker is polarized relative to a showerhead positioned on an opposite side of the ion blocker so that there are substantially no plasma gas ions passing through the showerhead.
    Type: Application
    Filed: July 20, 2021
    Publication date: November 11, 2021
    Inventors: Vivek B. Shah, Vinayak Vishwanath Hassan, Bhaskar Kumar, Ganesh Balasubramanian
  • Patent number: 11069514
    Abstract: Apparatus and methods for generating a flow of radicals are provided. An ion blocker is positioned a distance from a faceplate of a remote plasma source. The ion blocker has openings to allow the plasma to flow through. The ion blocker is polarized relative to a showerhead positioned on an opposite side of the ion blocker so that there are substantially no plasma gas ions passing through the showerhead.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: July 20, 2021
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Vivek B Shah, Vinayak Vishwanath Hassan, Bhaskar Kumar, Ganesh Balasubramanian
  • Publication number: 20200058213
    Abstract: An extreme ultraviolet (EUV) mask blank production system includes: a substrate handling vacuum chamber for creating a vacuum; a substrate handling platform, in the vacuum, for transporting an ultra-low expansion substrate loaded in the substrate handling vacuum chamber; and multiple sub-chambers, accessed by the substrate handling platform, for forming an EUV mask blank includes: a multi-layer stack, formed above the ultra-low expansion substrate, for reflecting an extreme ultraviolet (EUV) light, and an absorber layer, formed above the multi-layer stack, for absorbing the EUV light at a wavelength of 13.5 nm includes the absorber layer has a thickness of less than 80 nm and less than 2% reflectivity.
    Type: Application
    Filed: December 14, 2018
    Publication date: February 20, 2020
    Applicant: Applied Materials, Inc.
    Inventors: Vinayak Vishwanath Hassan, Majeed A. Foad, Cara Beasley, Ralf Hofmann
  • Patent number: 10551732
    Abstract: An extreme ultraviolet (EUV) mask blank production system includes: a substrate handling vacuum chamber for creating a vacuum; a substrate handling platform, in the vacuum, for transporting an ultra-low expansion substrate loaded in the substrate handling vacuum chamber; and multiple sub-chambers, accessed by the substrate handling platform, for forming an EUV mask blank includes: a multi-layer stack, formed above the ultra-low expansion substrate, for reflecting an extreme ultraviolet (EUV) light, and an absorber layer, formed above the multi-layer stack, for absorbing the EUV light at a wavelength of 13.5 nm includes the absorber layer has a thickness of less than 80 nm and less than 2% reflectivity.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: February 4, 2020
    Assignee: Applied Materials, Inc.
    Inventors: Vinayak Vishwanath Hassan, Majeed A. Foad, Cara Beasley, Ralf Hofmann
  • Publication number: 20200035467
    Abstract: Apparatus and methods for generating a flow of radicals are provided. An ion blocker is positioned a distance from a faceplate of a remote plasma source. The ion blocker has openings to allow the plasma to flow through. The ion blocker is polarized relative to a showerhead positioned on an opposite side of the ion blocker so that there are substantially no plasma gas ions passing through the showerhead.
    Type: Application
    Filed: July 26, 2019
    Publication date: January 30, 2020
    Inventors: Vivek B. Shah, Vinayak Vishwanath Hassan, Bhaskar Kumar, Ganesh Balasubramanian
  • Publication number: 20190130731
    Abstract: An extreme ultraviolet (EUV) mask blank production system includes: a substrate handling vacuum chamber for creating a vacuum; a substrate handling platform, in the vacuum, for transporting an ultra-low expansion substrate loaded in the substrate handling vacuum chamber; and multiple sub-chambers, accessed by the substrate handling platform, for forming an EUV mask blank includes: a multi-layer stack, formed above the ultra-low expansion substrate, for reflecting an extreme ultraviolet (EUV) light, and an absorber layer, formed above the multi-layer stack, for absorbing the EUV light at a wavelength of 13.5 nm includes the absorber layer has a thickness of less than 80 nm and less than 2% reflectivity.
    Type: Application
    Filed: December 14, 2018
    Publication date: May 2, 2019
    Applicant: Applied Materials, Inc.
    Inventors: Vinayak Vishwanath Hassan, Majeed A. Foad, Cara Beasley, Ralf Hofmann
  • Patent number: 10197907
    Abstract: An extreme ultraviolet (EUV) mask blank production system includes: a substrate handling vacuum chamber for creating a vacuum; a substrate handling platform, in the vacuum, for transporting an ultra-low expansion substrate loaded in the substrate handling vacuum chamber; and multiple sub-chambers, accessed by the substrate handling platform, for forming an EUV mask blank includes: a multi-layer stack, formed above the ultra-low expansion substrate, for reflecting an extreme ultraviolet (EUV) light, and an absorber layer, formed above the multi-layer stack, for absorbing the EUV light at a wavelength of 13.5 nm includes the absorber layer has a thickness of less than 80 nm and less than 2% reflectivity.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: February 5, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Vinayak Vishwanath Hassan, Majeed A. Foad, Cara Beasley, Ralf Hofmann
  • Patent number: 10012897
    Abstract: An extreme ultraviolet (EUV) mask blank production system includes: a substrate handling vacuum chamber for creating a vacuum; a substrate handling platform, in the vacuum, for transporting an ultra-low expansion substrate loaded in the substrate handling vacuum chamber; and multiple sub-chambers, accessed by the substrate handling platform, for forming an EUV mask blank includes: a first sub-chamber for forming a multi-layer stack, above the ultra-low expansion substrate, for reflecting an extreme ultraviolet (EUV) light; and a second sub-chamber for forming a bi-layer absorber, formed above the multi-layer stack, for absorbing the EUV light at a wavelength of 13.5 nm provides a reflectivity of less than 1.9%.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: July 3, 2018
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Vinayak Vishwanath Hassan, Majeed Foad, Cara Beasley, Ralf Hofmann
  • Patent number: 10012908
    Abstract: An apparatus and method of manufacture of an extreme ultraviolet reflective element includes: a substrate; a multilayer stack on the substrate, the multilayer stack includes a plurality of reflective layer pairs having a first reflective layer formed from silicon and a second reflective layer formed from niobium or niobium carbide for forming a Bragg reflector; and a capping layer on and over the multilayer stack for protecting the multilayer stack by reducing oxidation and mechanical erosion.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: July 3, 2018
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Ralf Hofmann, Vinayak Vishwanath Hassan, Cara Beasley, Majeed A. Foad
  • Patent number: 9690016
    Abstract: An extreme ultraviolet reflective element and method of manufacture includes a substrate; a multilayer stack on the substrate, the multilayer stack includes a plurality of reflective layer pairs having a first reflective layer formed from silicon and a second reflective layer having a preventative layer separating a lower amorphous layer and an upper amorphous layer; and a capping layer on and over the multilayer stack for protecting the multilayer stack by reducing oxidation and mechanical erosion.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: June 27, 2017
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Ralf Hofmann, Cara Beasley, Vinayak Vishwanath Hassan, Majeed A. Foad
  • Publication number: 20170160632
    Abstract: An extreme ultraviolet (EUV) mask blank production system includes: a substrate handling vacuum chamber for creating a vacuum; a substrate handling platform, in the vacuum, for transporting an ultra-low expansion substrate loaded in the substrate handling vacuum chamber; and multiple sub-chambers, accessed by the substrate handling platform, for forming an EUV mask blank includes: a multi-layer stack, formed above the ultra-low expansion substrate, for reflecting an extreme ultraviolet (EUV) light, and an absorber layer, formed above the multi-layer stack, for absorbing the EUV light at a wavelength of 13.5 nm includes the absorber layer has a thickness of less than 80 nm and less than 2% reflectivity.
    Type: Application
    Filed: February 21, 2017
    Publication date: June 8, 2017
    Inventors: Vinayak Vishwanath Hassan, Majeed A. Foad, Cara Beasley, Ralf Hofmann
  • Publication number: 20170131627
    Abstract: An extreme ultraviolet (EUV) mask blank production system includes: a substrate handling vacuum chamber for creating a vacuum; a substrate handling platform, in the vacuum, for transporting an ultra-low expansion substrate loaded in the substrate handling vacuum chamber; and multiple sub-chambers, accessed by the substrate handling platform, for forming an EUV mask blank includes: a first sub-chamber for forming a multi-layer stack, above the ultra-low expansion substrate, for reflecting an extreme ultraviolet (EUV) light; and a second sub-chamber for forming a bi-layer absorber, formed above the multi-layer stack, for absorbing the EUV light at a wavelength of 13.5 nm provides a reflectivity of less than 1.9%.
    Type: Application
    Filed: January 13, 2017
    Publication date: May 11, 2017
    Inventors: Vinayak Vishwanath Hassan, Majeed Foad, Cara Beasley, Ralf Hofmann