Patents by Inventor Arkaprava Dan

Arkaprava Dan 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: 11823870
    Abstract: A method of depositing titanium nitride is disclosed. Some embodiments of the disclosure provide a PEALD process for depositing titanium nitride which utilizes a direct microwave plasma. In some embodiments, the direct microwave plasma has a high plasma density and low ion energy. In some embodiments, the plasma is generated directly above the substrate surface.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: November 21, 2023
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Hanhong Chen, Arkaprava Dan, Joseph AuBuchon, Kyoung Ha Kim, Philip A. Kraus
  • Patent number: 11791190
    Abstract: Substrate supports, substrate support assemblies and methods of using the substrate supports are described. The substrate support has a support surface with at least two electrodes and a plurality of purge channels bounded by a seal band. A power supply connected to the electrodes configured as an electrostatic chuck. A capacitance of the substrate is measured while on the substrate support to determine the chucking state of the substrate.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: October 17, 2023
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Tejas Ulavi, Arkaprava Dan, Mike Murtagh, Sanjeev Baluja
  • Patent number: 11791172
    Abstract: Gas distribution apparatus to provide uniform flows of gases from a single source to multiple processing chambers are described. A valve upstream of a shared volume is controlled by at least two pressurizing sequences during a process it the processing chamber. The first pressurizing sequence opens and closes the upstream valve a first number of cycles and the second pressurizing sequence opens and closes the upstream valve less frequently after the first number of cycles. The open/close timing of the second pressurizing sequence occurs less frequently than the open/close timing of the first pressurizing sequence.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: October 17, 2023
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Mauro Cimino, Arkaprava Dan, Paul Z. Wirth
  • Publication number: 20230295803
    Abstract: Methods of forming metal-containing films for electronic devices (e.g., logic devices and/or memory devices) and methods for reducing equivalent oxide thickness (EOT) penalty in electronic devices are disclosed. The methods comprise exposing a substrate surface to a metal precursor, such as titanium chloride (TiCl4), a reducing agent, such as a cyclic 1,4-diene, and a reactant, ammonia (NH3), either simultaneously, partially simultaneously or separately and sequentially to form the metal-containing film.
    Type: Application
    Filed: April 14, 2023
    Publication date: September 21, 2023
    Applicant: Applied Materials, Inc.
    Inventors: Haoming Yan, Shih Chung Chen, Mandyam Sriram, EunKee Hong, Janardhan Devrajan, Lakmal C. Kalutarage, Yongjing Lin, Lisa Michelle Mandrell, Arkaprava Dan
  • Publication number: 20230253186
    Abstract: A method of depositing titanium nitride is disclosed. Some embodiments of the disclosure provide a PEALD process for depositing titanium nitride which utilizes a direct microwave plasma. In some embodiments, the direct microwave plasma has a high plasma density and low ion energy. In some embodiments, the plasma is generated directly above the substrate surface.
    Type: Application
    Filed: April 11, 2023
    Publication date: August 10, 2023
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Hanhong CHEN, Arkaprava DAN, Joseph AUBUCHON, Kyoung Ha KIM, Philip A. KRAUS
  • Publication number: 20230245925
    Abstract: A method for forming a metal nitride layer on a substrate includes exposing a substrate having features formed therein to a first deposition gas mixture including metal source material in a processing chamber to deposit metal source material in the features, supplying a first purge gas mixture into the processing chamber to remove excess metal source material and reaction byproducts from the processing chamber, exposing the substrate to a second deposition gas mixture including a nitride source compound in the processing chamber to form no more than one monolayer of metal nitride, supplying a second purge gas mixture into the processing chamber to remove excess nitride source compound and reaction byproducts from the processing chamber, and exposing the substrate to plasma using a microwave plasma source.
    Type: Application
    Filed: March 24, 2023
    Publication date: August 3, 2023
    Inventors: Wenyi LIU, Wei TANG, Srinivas GANDIKOTA, Yixiong YANG, Yong WU, Jianqiu GUO, Arkaprava DAN, Mandyam SRIRAM
  • Patent number: 11646226
    Abstract: A method for forming a metal nitride layer on a substrate includes exposing a substrate having features formed therein to a first deposition gas mixture including metal source material in a processing chamber to deposit metal source material in the features, supplying a first purge gas mixture into the processing chamber to remove excess metal source material and reaction byproducts from the processing chamber, exposing the substrate to a second deposition gas mixture including a nitride source compound in the processing chamber to form no more than one monolayer of metal nitride, supplying a second purge gas mixture into the processing chamber to remove excess nitride source compound and reaction byproducts from the processing chamber, and exposing the substrate to plasma using a microwave plasma source.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: May 9, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Wenyi Liu, Wei Tang, Srinivas Gandikota, Yixiong Yang, Yong Wu, Jianqiu Guo, Arkaprava Dan, Mandyam Sriram
  • Patent number: 11623253
    Abstract: Substrate supports, substrate support assemblies and methods of using an arc generated between a first electrode and a second electrode to clean a support surface. The first electrode comprises a plurality of first branches which are interdigitated with a plurality of branches of the second electrode in a finger-joint like pattern creating a gap between the first electrode and the second electrode.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: April 11, 2023
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Tejas Ulavi, Arkaprava Dan, Sanjeev Baluja, Wei V. Tang
  • Publication number: 20230071431
    Abstract: Embodiments disclosed herein include a method for auto-tuning a system. In an embodiment, the method comprises determining if the system is in a steady state. Thereafter, the method includes exciting the system. In an embodiment, the method comprises storing process feedback measurements from the excited system to provide a set of stored data. In an embodiment, the set of stored data is a subset of all available data generated by the excited system. In an embodiment, the method further comprises determining when the excited system returns to the steady state, and tuning the system using the set of stored data.
    Type: Application
    Filed: September 3, 2021
    Publication date: March 9, 2023
    Inventors: Mauro Cimino, Arkaprava Dan, Sanjeev Baluja
  • Patent number: 11599069
    Abstract: Embodiments disclosed herein include a method for auto-tuning a system. In an embodiment, the method comprises determining if the system is in a steady state. Thereafter, the method includes exciting the system. In an embodiment, the method comprises storing process feedback measurements from the excited system to provide a set of stored data. In an embodiment, the set of stored data is a subset of all available data generated by the excited system. In an embodiment, the method further comprises determining when the excited system returns to the steady state, and tuning the system using the set of stored data.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: March 7, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Mauro Cimino, Arkaprava Dan, Sanjeev Baluja
  • Publication number: 20220152668
    Abstract: Substrate supports, substrate support assemblies and methods of using an arc generated between a first electrode and a second electrode to clean a support surface. The first electrode comprises a plurality of first branches which are interdigitated with a plurality of branches of the second electrode in a finger-joint like pattern creating a gap between the first electrode and the second electrode.
    Type: Application
    Filed: January 24, 2022
    Publication date: May 19, 2022
    Applicant: Applied Materials, Inc.
    Inventors: Tejas Ulavi, Arkaprava Dan, Sanjeev Baluja, Wei V. Tang
  • Patent number: 11260432
    Abstract: Substrate supports, substrate support assemblies and methods of using an arc generated between a first electrode and a second electrode to clean a support surface. The first electrode comprises a plurality of first branches which are interdigitated with a plurality of branches of the second electrode in a finger-joint like pattern creating a gap between the first electrode and the second electrode.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: March 1, 2022
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Tejas Ulavi, Arkaprava Dan, Sanjeev Baluja, Wei V. Tang
  • Patent number: 11220747
    Abstract: Apparatus and methods to process one or more wafers are described. A first processing station has a first gas flow pattern from one or more of a first gas diffuser, a first cooling channel pattern, or a first heater. A second processing station has a second gas flow pattern from one or more of a second gas diffuser, a second cooling channel pattern, or a second heater. The second gas diffuser, the second cooling channel pattern, or the second heater is rotated or translated relative to the first gas diffuser, the first cooling channel pattern, or the first heater to provide the second gas flow pattern complementary to the first gas flow pattern.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: January 11, 2022
    Assignee: Applied Materials, Inc.
    Inventors: Joseph AuBuchon, Sanjeev Baluja, Michael Rice, Arkaprava Dan, Hanhong Chen
  • Publication number: 20210398823
    Abstract: Gas distribution apparatus to provide uniform flows of gases from a single source to multiple processing chambers are described. A valve upstream of a shared volume is controlled by at least two pressurizing sequences during a process it the processing chamber. The first pressurizing sequence opens and closes the upstream valve a first number of cycles and the second pressurizing sequence opens and closes the upstream valve less frequently after the first number of cycles. The open/close timing of the second pressurizing sequence occurs less frequently than the open/close timing of the first pressurizing sequence.
    Type: Application
    Filed: June 18, 2020
    Publication date: December 23, 2021
    Applicant: Applied Materials, Inc.
    Inventors: Mauro Cimino, Arkaprava Dan, Paul Z. Wirth
  • Publication number: 20210351060
    Abstract: Substrate supports, substrate support assemblies and methods of using the substrate supports are described. The substrate support has a support surface with at least two electrodes and a plurality of purge channels bounded by a seal band. A power supply connected to the electrodes configured as an electrostatic chuck. A capacitance of the substrate is measured while on the substrate support to determine the chucking state of the substrate.
    Type: Application
    Filed: May 7, 2021
    Publication date: November 11, 2021
    Applicant: Applied Materials, Inc.
    Inventors: Tejas Ulavi, Arkaprava Dan, Mike Murtagh, Sanjeev Baluja
  • Publication number: 20210351071
    Abstract: A method for forming a metal nitride layer on a substrate includes exposing a substrate having features formed therein to a first deposition gas mixture including metal source material in a processing chamber to deposit metal source material in the features, supplying a first purge gas mixture into the processing chamber to remove excess metal source material and reaction byproducts from the processing chamber, exposing the substrate to a second deposition gas mixture including a nitride source compound in the processing chamber to form no more than one monolayer of metal nitride, supplying a second purge gas mixture into the processing chamber to remove excess nitride source compound and reaction byproducts from the processing chamber, and exposing the substrate to plasma using a microwave plasma source.
    Type: Application
    Filed: May 11, 2020
    Publication date: November 11, 2021
    Inventors: Wenyi LIU, Wei TANG, Srinivas GANDIKOTA, Yixiong YANG, Yong WU, Jianqiu GUO, Arkaprava DAN, Mandyam SRIRAM
  • Publication number: 20210086239
    Abstract: Substrate supports, substrate support assemblies and methods of using an arc generated between a first electrode and a second electrode to clean a support surface. The first electrode comprises a plurality of first branches which are interdigitated with a plurality of branches of the second electrode in a finger-joint like pattern creating a gap between the first electrode and the second electrode.
    Type: Application
    Filed: September 18, 2020
    Publication date: March 25, 2021
    Applicant: Applied Materials, Inc.
    Inventors: Tejas Ulavi, Arkaprava Dan, Sanjeev Baluja, Wei V. Tang
  • Publication number: 20210087681
    Abstract: Apparatus and methods to process one or more substrates are described. A plurality of process stations are arranged in a circular configuration around a rotational axis. A support assembly with a rotatable center base defining a rotational axis, at least two support arms extending from the center base and heaters on each of the support arms is positioned adjacent the processing stations so that the heaters can be moved amongst the various process stations to perform one or more process condition. The support assembly configured to offset the position of the substrate with respect to the processing stations.
    Type: Application
    Filed: September 18, 2020
    Publication date: March 25, 2021
    Applicant: Applied Materials, Inc.
    Inventors: Joseph AuBuchon, Sanjeev Baluja, Michael Rice, Arkaprava Dan, Hanhong Chen
  • Publication number: 20210050186
    Abstract: A method of depositing titanium nitride is disclosed. Some embodiments of the disclosure provide a PEALD process for depositing titanium nitride which utilizes a direct microwave plasma. In some embodiments, the direct microwave plasma has a high plasma density and low ion energy. In some embodiments, the plasma is generated directly above the substrate surface.
    Type: Application
    Filed: August 11, 2020
    Publication date: February 18, 2021
    Applicant: Applied Materials, Inc.
    Inventors: Hanhong Chen, Arkaprava Dan, Joseph AuBuchon, Kyoung Ha Kim, Philip A. Kraus
  • Publication number: 20200131636
    Abstract: Apparatus and methods to process one or more wafers are described. A first processing station has a first gas flow pattern from one or more of a first gas diffuser, a first cooling channel pattern, or a first heater. A second processing station has a second gas flow pattern from one or more of a second gas diffuser, a second cooling channel pattern, or a second heater. The second gas diffuser, the second cooling channel pattern, or the second heater is rotated or translated relative to the first gas diffuser, the first cooling channel pattern, or the first heater to provide the second gas flow pattern complementary to the first gas flow pattern.
    Type: Application
    Filed: October 21, 2019
    Publication date: April 30, 2020
    Inventors: Joseph AuBuchon, Sanjeev Baluja, Michael Rice, Arkaprava Dan, Hanhong Chen