Patents by Inventor Hemantha Raju

Hemantha Raju 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: 11878532
    Abstract: Embodiments described herein relate to an inkjet printing platform. The inkjet printing platform is utilized for fabrication of optical films and optical device structures. The inkjet printing platform includes a transfer chamber, one or more inkjet chambers, a plurality of auxiliary modules, a substrate flipper, and load ports. The inkjet printing platform is operable to perform an inkjet printing process on a substrate to form an optical film and/or an optical device.
    Type: Grant
    Filed: January 12, 2022
    Date of Patent: January 23, 2024
    Assignee: Applied Materials, Inc.
    Inventors: Daihua Zhang, Ludovic Godet, Michael David-Scott Kemp, Kang Luo, Kazuya Daito, Kenneth S. Ledford, Bahubali S. Upadhye, Hemantha Raju, John Rusconi, Elsa Massonneau, Mahendran Chidambaram, Alexey Stepanov, Visweswaren Sivaramakrishnan
  • Patent number: 11807008
    Abstract: Embodiments described herein relate to an inkjet service station and methods of servicing an inkjet printer with the inkjet service station. The inkjet service station is disposed in an inkjet printer of an inkjet chamber. The inkjet service station is operable to perform servicing operations on a processing apparatus of the inkjet printer. The servicing operations include at least one of printhead spitting, printhead purging, printhead flushing, printhead cleaning, printhead drying, or vacuum suction.
    Type: Grant
    Filed: January 12, 2022
    Date of Patent: November 7, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Daihua Zhang, Kang Luo, Kazuya Daito, Kenneth S. Ledford, Elsa Massonneau, Alexey Stepanov, Ludovic Godet, Mahendran Chidambaram, Visweswaren Sivaramakrishnan, Bahubali S. Upadhye, Hemantha Raju
  • Publication number: 20220363060
    Abstract: Embodiments described herein relate to an inkjet service station and methods of servicing an inkjet printer with the inkjet service station. The inkjet service station is disposed in an inkjet printer of an inkjet chamber. The inkjet service station is operable to perform servicing operations on a processing apparatus of the inkjet printer. The servicing operations include at least one of printhead spitting, printhead purging, printhead flushing, printhead cleaning, printhead drying, or vacuum suction.
    Type: Application
    Filed: January 12, 2022
    Publication date: November 17, 2022
    Inventors: Daihua ZHANG, Kang LUO, Kazuya DAITO, Kenneth S. LEDFORD, Elsa MASSONNEAU, Alexey STEPANOV, Ludovic GODET, Mahendran CHIDAMBARAM, Visweswaren SIVARAMAKRISHNAN, Bahubali S. UPADHYE, Hemantha RAJU
  • Publication number: 20220363064
    Abstract: Embodiments described herein relate to an inkjet printing platform. The inkjet printing platform is utilized for fabrication of optical films and optical device structures. The inkjet printing platform includes a transfer chamber, one or more inkjet chambers, a plurality of auxiliary modules, a substrate flipper, and load ports. The inkjet printing platform is operable to perform an inkjet printing process on a substrate to form an optical film and/or an optical device.
    Type: Application
    Filed: January 12, 2022
    Publication date: November 17, 2022
    Inventors: Daihua ZHANG, Ludovic Godet, Michael David-Scott Kemp, Kang Luo, Kazuya Daito, Kenneth S. Ledford, Bahubali S. Upadhye, Hemantha Raju, John Rusconi, Elsa Massonneau, Mahendran Chidambaram, Alexey Stepanov, Visweswaren Sivaramakrishnan
  • Patent number: 11501954
    Abstract: Embodiments of the present disclosure generally relate to a processing chamber for conformal oxidation of high aspect ratio structures. The processing chamber includes a chamber body with a first side and a second side opposite the first side, and a flow assembly disposed in the first side. The flow assembly includes a flow divider to direct fluid flow away from a center of a substrate disposed in a processing region of the processing chamber. The flow divider includes a crescent shaped first side, a top, and a bottom. The processing chamber also includes a distributed pumping structure located adjacent to the second side. The flow assembly is designed to reduce flow constriction of the radicals, leading to increased radical concentration and flux.
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: November 15, 2022
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Vishwas Kumar Pandey, Kartik Shah, Christopher S. Olsen, Agus Sofian Tjandra, Hansel Lo, Eric Kihara Shono, Hemantha Raju
  • Patent number: 11192153
    Abstract: Systems for prequalifying components for a processing chamber are described. The systems may be used to clean particulates from chamber parts and concurrently quantify the cleanliness. The systems may be used to qualify replacement parts before sending to a customer site for installation. The systems have three adjacent compartments separated by impermeable barriers. All three compartments are filled with liquid while cleaning a chamber component. The center compartment contains a submerged component for cleaning and qualifying. Two compartments on either side of the center compartment are configured with submerged ultrasonic transducers to deliver ultrasonic energy to either side of the component being cleaned and prequalified. A liquid pump is connected to the cleaning tub to recirculate water from the cleaning bath and another liquid pump is configured to remove a small amount of the cleaning bath to sample particulates.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: December 7, 2021
    Assignee: Applied Materials, Inc.
    Inventors: Sankesha Bhoyar, Mahesh Arcot, Nilesh Chimanrao Bagul, Hemantha Raju, Ravindra Patil
  • Publication number: 20210272776
    Abstract: Embodiments of the present disclosure generally relate to a processing chamber for conformal oxidation of high aspect ratio structures. The processing chamber includes a chamber body with a first side and a second side opposite the first side, and a flow assembly disposed in the first side. The flow assembly includes a flow divider to direct fluid flow away from a center of a substrate disposed in a processing region of the processing chamber. The flow divider includes a crescent shaped first side, a top, and a bottom. The processing chamber also includes a distributed pumping structure located adjacent to the second side. The flow assembly is designed to reduce flow constriction of the radicals, leading to increased radical concentration and flux.
    Type: Application
    Filed: May 19, 2021
    Publication date: September 2, 2021
    Inventors: Vishwas Kumar PANDEY, Kartik Bhupendra SHAH, Christopher S. OLSEN, Agus Sofian TJANDRA, Hansel LO, Eric Kihara SHONO, Hemantha RAJU
  • Patent number: 11049696
    Abstract: Embodiments of the present disclosure generally relate to a processing chamber for conformal oxidation of high aspect ratio structures. The processing chamber includes a chamber body with a first side and a second side opposite the first side, and a flow assembly disposed in the first side. The flow assembly includes a flow divider to direct fluid flow away from a center of a substrate disposed in a processing region of the processing chamber. The flow divider includes a crescent shaped first side, a top, and a bottom. The processing chamber also includes a distributed pumping structure located adjacent to the second side. The flow assembly is designed to reduce flow constriction of the radicals, leading to increased radical concentration and flux.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: June 29, 2021
    Assignee: Applied Materials, Inc.
    Inventors: Vishwas Kumar Pandey, Kartik Shah, Christopher S. Olsen, Agus Sofian Tjandra, Hansel Lo, Eric Kihara Shono, Hemantha Raju
  • Publication number: 20200219703
    Abstract: Embodiments of the present disclosure generally relate to a processing chamber for conformal oxidation of high aspect ratio structures. The processing chamber includes a chamber body with a first side and a second side opposite the first side, and a flow assembly disposed in the first side. The flow assembly includes a flow divider to direct fluid flow away from a center of a substrate disposed in a processing region of the processing chamber. The flow divider includes a crescent shaped first side, a top, and a bottom. The processing chamber also includes a distributed pumping structure located adjacent to the second side. The flow assembly is designed to reduce flow constriction of the radicals, leading to increased radical concentration and flux.
    Type: Application
    Filed: March 19, 2020
    Publication date: July 9, 2020
    Inventors: Vishwas Kumar PANDEY, Kartik SHAH, Christopher S. OLSEN, Agus Sofian TJANDRA, Hansel LO, Eric Kihara SHONO, Hemantha RAJU
  • Patent number: 10636626
    Abstract: Embodiments of the present disclosure generally relate to a processing chamber for conformal oxidation of high aspect ratio structures. The processing chamber includes a chamber body with a first side and a second side opposite the first side, and a flow assembly disposed in the first side. The flow assembly includes a flow divider to direct fluid flow away from a center of a substrate disposed in a processing region of the processing chamber. The flow divider includes a crescent shaped first side, a top, and a bottom. The processing chamber also includes a distributed pumping structure located adjacent to the second side. The flow assembly is designed to reduce flow constriction of the radicals, leading to increased radical concentration and flux.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: April 28, 2020
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Vishwas Kumar Pandey, Kartik Shah, Christopher S. Olsen, Agus Sofian Tjandra, Hansel Lo, Eric Kihara Shono, Hemantha Raju
  • Publication number: 20190228951
    Abstract: Embodiments of the present disclosure generally relate to a processing chamber for conformal oxidation of high aspect ratio structures. The processing chamber includes a chamber body with a first side and a second side opposite the first side, and a flow assembly disposed in the first side. The flow assembly includes a flow divider to direct fluid flow away from a center of a substrate disposed in a processing region of the processing chamber. The flow divider includes a crescent shaped first side, a top, and a bottom. The processing chamber also includes a distributed pumping structure located adjacent to the second side. The flow assembly is designed to reduce flow constriction of the radicals, leading to increased radical concentration and flux.
    Type: Application
    Filed: December 21, 2018
    Publication date: July 25, 2019
    Inventors: Vishwas Kumar PANDEY, Kartik SHAH, Christopher S. OLSEN, Agus Sofian TJANDRA, Hansel LO, Eric Kihara SHONO, Hemantha RAJU
  • Publication number: 20180339314
    Abstract: Systems for prequalifying components for a processing chamber are described. The systems may be used to clean particulates from chamber parts and concurrently quantify the cleanliness. The systems may be used to qualify replacement parts before sending to a customer site for installation. The systems have three adjacent compartments separated by impermeable barriers. All three compartments are filled with liquid while cleaning a chamber component. The center compartment contains a submerged component for cleaning and qualifying. Two compartments on either side of the center compartment are configured with submerged ultrasonic transducers to deliver ultrasonic energy to either side of the component being cleaned and prequalified. A liquid pump is connected to the cleaning tub to recirculate water from the cleaning bath and another liquid pump is configured to remove a small amount of the cleaning bath to sample particulates.
    Type: Application
    Filed: July 30, 2018
    Publication date: November 29, 2018
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Sankesha Bhoyar, Mahesh Arcot, Nilesh Chimanrao Bagul, Hemantha Raju, Ravindra Patil
  • Patent number: 10081036
    Abstract: Systems for prequalifying components for a processing chamber are described. The systems may be used to clean particulates from chamber parts and concurrently quantify the cleanliness. The systems may be used to qualify replacement parts before sending to a customer site for installation. The systems have three adjacent compartments separated by impermeable barriers. All three compartments are filled with liquid while cleaning a chamber component. The center compartment contains a submerged component for cleaning and qualifying. Two compartments on either side of the center compartment are configured with submerged ultrasonic transducers to deliver ultrasonic energy to either side of the component being cleaned and prequalified. A liquid pump is connected to the cleaning tub to recirculate water from the cleaning bath and another liquid pump is configured to remove a small amount of the cleaning bath to sample particulates.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: September 25, 2018
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Sankesha Bhoyar, Mahesh Arcot, Nilesh Chimanrao Bagul, Hemantha Raju, Ravindra Patil
  • Publication number: 20180078975
    Abstract: Systems for prequalifying components for a processing chamber are described. The systems may be used to clean particulates from chamber parts and concurrently quantify the cleanliness. The systems may be used to qualify replacement parts before sending to a customer site for installation. The systems have three adjacent compartments separated by impermeable barriers. All three compartments are filled with liquid while cleaning a chamber component. The center compartment contains a submerged component for cleaning and qualifying. Two compartments on either side of the center compartment are configured with submerged ultrasonic transducers to deliver ultrasonic energy to either side of the component being cleaned and prequalified. A liquid pump is connected to the cleaning tub to recirculate water from the cleaning bath and another liquid pump is configured to remove a small amount of the cleaning bath to sample particulates.
    Type: Application
    Filed: September 19, 2016
    Publication date: March 22, 2018
    Inventors: Sankesha Bhoyar, Mahesh Arcot, Nilesh Chimanrao Bagul, Hemantha Raju, Ravindra Patil