Patents by Inventor Mohith Verghese

Mohith Verghese 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: 12234552
    Abstract: A semiconductor processing apparatus is disclosed. The apparatus may include a multiple chamber module comprising at least a first reaction chamber and a second reaction chamber, and a first substrate support structure disposed within the first reaction chamber and a second substrate support structure disposed within the second reaction chamber. The apparatus may also include a wafer handling chamber comprising a transfer robot configured for transferring two or more substrates along a first transfer path between the wafer handling chamber and the first substrate support structure and a second transfer path between the wafer handling chamber and the second substrate support structure. The apparatus may also include at least a first pyrometer and a second pyrometer, wherein a first optical path of the first pyrometer intersects the first transfer path and a second optical path of the second pyrometer intersect the second transfer path.
    Type: Grant
    Filed: April 5, 2023
    Date of Patent: February 25, 2025
    Assignee: ASM IP Holding B.V.
    Inventors: Mohith Verghese, Todd Dunn, John Kevin Shugrue
  • Patent number: 12114488
    Abstract: Methods of forming memory devices are described. A molybdenum silicide nucleation layer is formed, and the substrate is soaked in a titanium precursor prior to a bulk molybdenum gap fill process. In other embodiments, a molybdenum silicide film is formed in a first process cycle and a second process cycle is performed where the substrate is exposed to a titanium precursor. In further embodiments, a substrate having at least one feature thereon is exposed to a first titanium precursor and a nitrogen-containing reactant. The substrate is then soaked in a second titanium precursor, and then is exposed to a first molybdenum precursor followed by exposure to a silane to form a molybdenum silicide layer on a surface of the substrate.
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: October 8, 2024
    Assignee: Applied Materials, Inc.
    Inventors: Yong Yang, Kunal Bhatnagar, Srinivas Gandikota, Seshadri Ganguli, Jose Alexandro Romero, Mandyam Sriram, Mohith Verghese, Jacqueline S. Wrench, Yixiong Yang
  • Patent number: 12080558
    Abstract: Methods for depositing molybdenum films on a substrate are described. The substrate is exposed to a molybdenum halide precursor and an aluminum precursor to form the molybdenum film (e.g., elemental molybdenum) at a low temperature. The exposures can be sequential or simultaneous.
    Type: Grant
    Filed: October 12, 2023
    Date of Patent: September 3, 2024
    Assignee: Applied Materials, Inc.
    Inventors: Kunal Bhatnagar, Dmitrii Leshchev, Mohith Verghese, Jose Alexandro Romero
  • Patent number: 12054825
    Abstract: Ampoules for a semiconductor manufacturing precursors and methods of use are described. The ampoules include a container with an inlet port an outlet port, a manifold having a serpentine base creating a tortuous flow path and a filter media assembly in a bottom-fed configuration. The torturous flow path is defined by a plurality of elongate walls and a plurality of openings of the serpentine base ampoule, through which a carrier gas flows in contact with the precursor.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: August 6, 2024
    Assignee: Applied Materials, Inc.
    Inventors: Carl White, David Marquardt, Mohith Verghese
  • Publication number: 20240209501
    Abstract: Herein disclosed are systems and methods related to solid source chemical vaporizer vessels and multiple chamber deposition modules. In some embodiments, a solid source chemical vaporizer includes a housing base and a housing lid. Some embodiments also include a first and second tray configured to be housed within the housing base, wherein each tray defines a first serpentine path adapted to hold solid source chemical and allow gas flow thereover. In some embodiments, a multiple chamber deposition module includes first and second vapor phase reaction chambers and a solid source chemical vaporizer vessel to supply each of the first and second vapor phase reaction chambers.
    Type: Application
    Filed: March 5, 2024
    Publication date: June 27, 2024
    Inventors: Mohith Verghese, Eric James Shero, Carl Louis White, Kyle Fondurulia, Herbert Terhorst
  • Patent number: 11926894
    Abstract: Herein disclosed are systems and methods related to solid source chemical vaporizer vessels and multiple chamber deposition modules. In some embodiments, a solid source chemical vaporizer includes a housing base and a housing lid. Some embodiments also include a first and second tray configured to be housed within the housing base, wherein each tray defines a first serpentine path adapted to hold solid source chemical and allow gas flow thereover. In some embodiments, a multiple chamber deposition module includes first and second vapor phase reaction chambers and a solid source chemical vaporizer vessel to supply each of the first and second vapor phase reaction chambers.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: March 12, 2024
    Assignee: ASM IP Holding B.V.
    Inventors: Mohith Verghese, Eric James Shero, Carl Louis White, Kyle Fondurulia, Herbert Terhorst
  • Publication number: 20240060175
    Abstract: Embodiments of the disclosure provide conformally deposited molybdenum films having reduced resistivity and methods of forming the same. The methods include forming a nucleation layer directly on a dielectric layer on a substrate surface by exposing the substrate surface to a molybdenum-containing precursor and a nucleation reactant, and conformally depositing a molybdenum film on the nucleation layer. Another aspect of the disclosure pertains to a method that is part of a gap fill process, comprising forming a nucleation layer directly on a dielectric region within one or more high aspect ratio gap features, including vertical gap features and/or horizontal gap features, and conformally depositing a molybdenum film on the nucleation layer to fill the feature.
    Type: Application
    Filed: August 19, 2022
    Publication date: February 22, 2024
    Applicant: Applied Materials, Inc.
    Inventors: Srinivas Gandikota, Yixiong Yang, Yong Yang, Tuerxun Ailihumaer, Yogesh Sharma, Kunal Bhatnagar, Mohith Verghese
  • Publication number: 20240047215
    Abstract: Methods for depositing molybdenum films on a substrate are described. The substrate is exposed to a molybdenum halide precursor and an aluminum precursor to form the molybdenum film (e.g., elemental molybdenum) at a low temperature. The exposures can be sequential or simultaneous.
    Type: Application
    Filed: October 12, 2023
    Publication date: February 8, 2024
    Applicant: Applied Materials, Inc.
    Inventors: Kunal Bhatnagar, Dmitrii Leshchev, Mohith Verghese, Jose Alexandro Romero
  • Publication number: 20240035151
    Abstract: Methods for selective deposition are described herein. The methods include depositing an oxide on a first portion of a substrate surface selected from the group consisting of a metal surface, a metal nitride surface and a metal silicide surface. The methods further comprise selectively depositing a molybdenum film on a second portion of the substrate surface that does not have the oxide deposited thereon.
    Type: Application
    Filed: July 17, 2023
    Publication date: February 1, 2024
    Applicant: Applied Materials, Inc.
    Inventors: Rand Haddadin, Kunal Bhatnagar, Mohith Verghese, Jose Alexandro Romero, Aniruddh Shekhawat
  • Patent number: 11859281
    Abstract: Ampoules for a semiconductor manufacturing precursors and methods of use are described. The ampoules include a container with an inlet port and an outlet port. The ampoules comprise an inlet plenum located between the inlet port and the cavity and an outlet plenum located between the outlet port and the cavity. A flow path is defined by a plurality of tubular walls and an ingress openings of the ampoule, through which a carrier gas flows in contact with the precursor.
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: January 2, 2024
    Assignee: Applied Materials, Inc.
    Inventors: Carl White, Mohith Verghese, David Marquardt, Jose Alexandro Romero
  • Patent number: 11854813
    Abstract: Methods for depositing molybdenum films on a substrate are described. The substrate is exposed to a molybdenum halide precursor and an aluminum precursor to form the molybdenum film (e.g., elemental molybdenum) at a low temperature. The exposures can be sequential or simultaneous.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: December 26, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Kunal Bhatnagar, Dmitrii Leshchev, Mohith Verghese, Jose Alexandro Romero
  • Patent number: 11773485
    Abstract: Bottom-fed ampoules for a semiconductor manufacturing precursors and methods of use are described. The ampoules comprise an outer cylindrical wall and an inner cylindrical wall defining a flow channel in between and a bottom wall having a top surface with a plurality of concentric elongate walls, each wall comprising an opening offset from the opening in adjacent walls defining a gas exchange zone through which a carrier gas flows in contact with the precursor.
    Type: Grant
    Filed: January 10, 2023
    Date of Patent: October 3, 2023
    Assignee: APPLIED MATERIALS, INC.
    Inventors: David Marquardt, Carl White, Mohith Verghese
  • Patent number: 11742189
    Abstract: Multi-zone reactors, systems including a multi-zone reactor, and methods of using the systems and reactors are disclosed. Exemplary multi-zone reactors include a movable susceptor assembly and a moveable plate. The movable susceptor assembly and movable plate can move vertically between reaction zones of a reactor to expose a substrate to multiple processes or reactants.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: August 29, 2023
    Assignee: ASM IP Holding B.V.
    Inventors: Carl Louis White, Mohith Verghese, Eric James Shero, Todd Robert Dunn
  • Publication number: 20230243033
    Abstract: A semiconductor processing apparatus is disclosed. The apparatus may include a multiple chamber module comprising at least a first reaction chamber and a second reaction chamber, and a first substrate support structure disposed within the first reaction chamber and a second substrate support structure disposed within the second reaction chamber. The apparatus may also include a wafer handling chamber comprising a transfer robot configured for transferring two or more substrates along a first transfer path between the wafer handling chamber and the first substrate support structure and a second transfer path between the wafer handling chamber and the second substrate support structure. The apparatus may also include at least a first pyrometer and a second pyrometer, wherein a first optical path of the first pyrometer intersects the first transfer path and a second optical path of the second pyrometer intersect the second transfer path.
    Type: Application
    Filed: April 5, 2023
    Publication date: August 3, 2023
    Inventors: Mohith Verghese, Todd Dunn, John Kevin Shugrue
  • Publication number: 20230178375
    Abstract: Method of forming film stacks and film stacks for electronic devices are described herein. The methods comprise depositing a molybdenum nucleation layer on a gate oxide layer; depositing a molybdenum layer on the molybdenum nucleation layer; and performing a plasma nitridation process to insert nitrogen atoms into the molybdenum layer to form a work function modulating layer having an effective work function ? 4.5 eV. The plasma nitridation process comprises exposing the molybdenum layer to a radical-rich plasma comprising one or more of N2 or NH3. Some methods further comprise one or more of annealing the work function modulating layer, depositing a conductive layer on the work function modulating layer, or performing an etch process.
    Type: Application
    Filed: December 3, 2021
    Publication date: June 8, 2023
    Applicant: Applied Materials, Inc.
    Inventors: Kunal Bhatnagar, Wei Liu, Shashank Sharma, Archana Kumar, Mohith Verghese, Jose Alexandro Romero
  • Publication number: 20230160064
    Abstract: Bottom-fed ampoules for a semiconductor manufacturing precursors and methods of use are described. The ampoules comprise an outer cylindrical wall and an inner cylindrical wall defining a flow channel in between and a bottom wall having a top surface with a plurality of concentric elongate walls, each wall comprising an opening offset from the opening in adjacent walls defining a gas exchange zone through which a carrier gas flows in contact with the precursor.
    Type: Application
    Filed: January 10, 2023
    Publication date: May 25, 2023
    Applicant: Applied Materials, Inc.
    Inventors: David Marquardt, Carl White, Mohith Verghese
  • Publication number: 20230126780
    Abstract: Ampoules for a semiconductor manufacturing precursors and methods of use are described. The ampoules include a container with an inlet port and an outlet port. The ampoules comprise an inlet plenum located between the inlet port and the cavity and an outlet plenum located between the outlet port and the cavity. A flow path is defined by a plurality of tubular walls and an ingress openings of the ampoule, through which a carrier gas flows in contact with the precursor.
    Type: Application
    Filed: December 22, 2022
    Publication date: April 27, 2023
    Applicant: Applied Materials, Inc.
    Inventors: Carl White, Mohith Verghese, David Marquardt, Jose Alexandro Romero
  • Patent number: 11629406
    Abstract: A semiconductor processing apparatus is disclosed. The apparatus may include a multiple chamber module comprising at least a first reaction chamber and a second reaction chamber, and a first substrate support structure disposed within the first reaction chamber and a second substrate support structure disposed within the second reaction chamber. The apparatus may also include a wafer handling chamber comprising a transfer robot configured for transferring two or more substrates along a first transfer path between the wafer handling chamber and the first substrate support structure and a second transfer path between the wafer handling chamber and the second substrate support structure. The apparatus may also include at least a first pyrometer and a second pyrometer, wherein a first optical path of the first pyrometer intersects the first transfer path and a second optical path of the second pyrometer intersect the second transfer path.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: April 18, 2023
    Assignee: ASM IP Holding B.V.
    Inventors: Mohith Verghese, Todd Dunn, John Kevin Shugrue
  • Patent number: 11584990
    Abstract: Bottom-fed ampoules for a semiconductor manufacturing precursors and methods of use are described. The ampoules comprise an outer cylindrical wall and an inner cylindrical wall defining a flow channel in between and a bottom wall having a top surface with a plurality of concentric elongate walls, each wall comprising an opening offset from the opening in adjacent walls defining a gas exchange zone through which a carrier gas flows in contact with the precursor.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: February 21, 2023
    Assignee: APPLIED MATERIALS, INC.
    Inventors: David Marquardt, Carl White, Mohith Verghese
  • Patent number: 11578406
    Abstract: Ampoules for a semiconductor manufacturing precursors and methods of use are described. The ampoules include a container with an inlet port and an outlet port. The ampoules comprise an inlet plenum located between the inlet port and the cavity and an outlet plenum located between the outlet port and the cavity. A flow path is defined by a plurality of tubular walls and an ingress openings of the ampoule, through which a carrier gas flows in contact with the precursor.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: February 14, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Carl White, Mohith Verghese, David Marquardt, Jose Alexandro Romero