Patents by Inventor Kallol Bera

Kallol Bera 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: 11198939
    Abstract: Apparatus and methods for processing a substrate including an injector unit insert with a plurality of flow paths leading to a first plenum, each of the flow paths providing one or more of substantially the same residence time, length and/or conductance. Injector units including the injector unit inserts have increased flow uniformity.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: December 14, 2021
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Aaron Miller, Kallol Bera
  • Patent number: 11189502
    Abstract: Gas distribution modules comprising a housing with an upper plenum and a lower plenum are described. One of the upper plenum and lower plenum is in fluid communication with an inlet and the other is in fluid communication with an outlet. A plurality of upper passages connects the upper plenum to the bottom of the housing to allow a flow of gas to pass through and be isolated from the first plenum.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: November 30, 2021
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Kallol Bera, Shahid Rauf, James Carducci, Vladimir Knyazik, Anantha K. Subramani
  • Publication number: 20210327686
    Abstract: Plasma source assemblies, gas distribution assemblies including the plasma source assembly and methods of generating a plasma are described. The plasma source assemblies include a powered electrode with a ground electrode adjacent a first side and a dielectric adjacent a second side. A first microwave generator is electrically coupled to the first end of the powered electrode through a first feed and a second microwave generator is electrically coupled to the second end of the powered electrode through a second feed.
    Type: Application
    Filed: April 29, 2021
    Publication date: October 21, 2021
    Applicant: Applied Materials, Inc.
    Inventors: Xiaopu Li, Jozef Kudela, Kallol Bera, Tsutomu Tanaka, Dmitry A. Dzilno
  • Publication number: 20210327685
    Abstract: Embodiments include a modular high-frequency emission source. In an embodiment, the modular high-frequency emission source includes a plurality of high-frequency emission modules, where each high-frequency emission module comprises and oscillator module, an amplification module, and an applicator. In an embodiment the oscillator module comprises a voltage control circuit and a voltage controlled oscillator. In an embodiment, the amplification module is coupled to the oscillator module. In an embodiment, the applicator is coupled to the amplification module. In an embodiment, each high-frequency emission module includes a different oscillator module.
    Type: Application
    Filed: June 25, 2021
    Publication date: October 21, 2021
    Inventors: Thai Cheng Chua, Christian Amormino, Hanh Nguyen, Kallol Bera, Philip Allan Kraus
  • Publication number: 20210280443
    Abstract: Embodiments disclosed herein comprise a sensor. In an embodiment, the sensor comprises a substrate having a first surface and a second surface opposite from the first surface. In an embodiment, the sensor further comprises a first electrode over the first surface of the substrate, and a second electrode over the first surface of the substrate and adjacent to the first electrode. In an embodiment, the sensor further comprises a barrier layer over the first electrode and the second electrode.
    Type: Application
    Filed: March 6, 2020
    Publication date: September 9, 2021
    Inventors: Yaoling Pan, Patrick John Tae, Leonard Tedeschi, Jennifer Sun, Philip Allan Kraus, Xiaopu Li, Kallol Bera, Michael D. Willwerth, Albert Barrett Hicks, III, Lisa J. Enman, Mark Joseph Saly, Daniel Thomas McCormick
  • Patent number: 11114284
    Abstract: A plasma reactor includes a chamber body having an interior space that provides a plasma chamber, a gas distributor to deliver a processing gas to the plasma chamber, a workpiece support to hold a workpiece, an electrode assembly comprising a plurality of conductors spaced apart from and extending laterally across the workpiece support in a parallel coplanar array, a first RF power source to supply a first RF power to the electrode assembly, and a dielectric bottom plate between the electrode assembly and the workpiece support, the dielectric bottom plate providing an RF window between the electrode assembly and the plasma chamber.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: September 7, 2021
    Assignee: Applied Materials, Inc.
    Inventors: Kenneth S. Collins, Michael R. Rice, Kartik Ramaswamy, James D. Carducci, Shahid Rauf, Kallol Bera
  • Publication number: 20210269919
    Abstract: Embodiments described herein relate to magnetic and electromagnetic systems and a method for controlling the density profile of plasma generated in a process volume of a PECVD chamber to affect deposition profile of a film on a substrate and/or facilitate chamber cleaning after processing. In one embodiment, a system is disclosed that includes a rotational magnetic housing disposed about an exterior sidewall of a chamber. The rotational magnetic housing includes a plurality of magnets coupled to a sleeve that are configured to travel in a circular path when the rotational magnetic housing is rotated around the chamber, and a plurality of shunt doors movably disposed between the chamber and the sleeve, wherein each of the shunt doors are configured to move relative to the magnets.
    Type: Application
    Filed: December 22, 2020
    Publication date: September 2, 2021
    Inventors: Kallol BERA, Sathya Swaroop GANTA, Timothy Joseph FRANKLIN, Kaushik ALAYAVALLI, Akshay DHANAKSHIRUR, Stephen C. GARNER, Bhaskar KUMAR
  • Patent number: 11081317
    Abstract: Embodiments include a modular high-frequency emission source. In an embodiment, the modular high-frequency emission source includes a plurality of high-frequency emission modules, where each high-frequency emission module comprises an oscillator module, an amplification module, and an applicator. In an embodiment the oscillator module comprises a voltage control circuit and a voltage controlled oscillator. In an embodiment, the amplification module is coupled to the oscillator module. In an embodiment, the applicator is coupled to the amplification module. In an embodiment, each high-frequency emission module includes a different oscillator module.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: August 3, 2021
    Assignee: Applied Materials, Inc.
    Inventors: Thai Cheng Chua, Christian Amormino, Hanh Nguyen, Kallol Bera, Philip Allan Kraus
  • Publication number: 20210210312
    Abstract: Plasma source assemblies comprising a housing with an RF hot electrode having a body and a plurality of source electrodes extending vertically from the RF hot electrode toward the opening in a front face of the housing are described. Processing chambers incorporating the plasma source assemblies and methods of using the plasma source assemblies are also described.
    Type: Application
    Filed: December 29, 2020
    Publication date: July 8, 2021
    Inventors: Anantha K. Subramani, Farzad Houshmand, Philip A. Kraus, Abhishek Chowdhury, John C. Forster, Kallol Bera
  • Publication number: 20210166923
    Abstract: Plasma source assemblies comprising an RF hot electrode having a body and at least one return electrode spaced from the RF hot electrode to provide a gap in which a plasma can be formed. An RF feed is connected to the RF hot electrode at a distance from the inner peripheral end of the RF hot electrode that is less than or equal to about 25% of the length of the RF hot electrode.
    Type: Application
    Filed: January 15, 2021
    Publication date: June 3, 2021
    Applicant: Applied Materials, Inc.
    Inventors: Kallol Bera, Anantha K. Subramani, John C. Forster, Philip A. Kraus, Farzad Houshmand, Hanhong Chen
  • Publication number: 20210050187
    Abstract: Plasma source assemblies, gas distribution assemblies including the plasma source assembly and methods of generating plasma are described. The plasma source assemblies include a powered electrode with a ground electrode adjacent a first side and a dielectric adjacent a second side. A first microwave generator is electrically coupled to the first end of the powered electrode through a first feed and a second microwave generator is electrically coupled to the second end of the powered electrode through a second feed.
    Type: Application
    Filed: March 1, 2019
    Publication date: February 18, 2021
    Applicant: Applied Materials, Inc.
    Inventors: Jozef Kudela, Tsutomu Tanaka, Alexander V. Garachtchenko, Dmitry A. Dzilno, Avinash Shervegar, Kallol Bera, Xiaopu Li, Anantha K. Subramani, John C. Forster
  • Patent number: 10903056
    Abstract: Plasma source assemblies comprising an RF hot electrode having a body and at least one return electrode spaced from the RF hot electrode to provide a gap in which a plasma can be formed. An RF feed is connected to the RF hot electrode at a distance from the inner peripheral end of the RF hot electrode that is less than or equal to about 25% of the length of the RF hot electrode.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: January 26, 2021
    Assignee: Applied Materials, Inc.
    Inventors: Kallol Bera, Anantha K. Subramani, John C. Forster, Philip A. Kraus, Farzad Houshmand, Hanhong Chen
  • Patent number: 10879042
    Abstract: Plasma source assemblies comprising a housing with an RF hot electrode having a body and a plurality of source electrodes extending vertically from the RF hot electrode toward the opening in a front face of the housing are described. Processing chambers incorporating the plasma source assemblies and methods of using the plasma source assemblies are also described.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: December 29, 2020
    Assignee: Applied Materials, Inc.
    Inventors: Anantha K. Subramani, Farzad Houshmand, Philip A. Kraus, Abhishek Chowdhury, John C. Forster, Kallol Bera
  • Publication number: 20200395194
    Abstract: Plasma source assemblies comprising an RF hot electrode having a body and at least one return electrode spaced from the RF hot electrode to provide a gap in which a plasma can be formed. An RF feed is connected to the RF hot electrode at a distance from the inner peripheral end of the RF hot electrode that is less than or equal to about 25% of the length of the RF hot electrode. The RF hot electrode can include a leg and optional triangular portion near the leg that extends at an angle to the body of the RF hot electrode. A cladding material on one or more of the RF hot electrode and the return electrode can be variably spaced or have variable properties along the length of the plasma gap.
    Type: Application
    Filed: September 1, 2020
    Publication date: December 17, 2020
    Applicant: Applied Materials, Inc.
    Inventors: Kallol Bera, Dmitry A. Dzilno, Anantha K. Subramani, John C. Forster, Tsutomu Tanaka
  • Publication number: 20200312702
    Abstract: Susceptor assemblies comprising a susceptor base and a plurality of pie-shaped skins thereon are described. A pie anchor can be positioned in the center of the susceptor base to hold the pie-shaped skins in place during processing.
    Type: Application
    Filed: June 15, 2020
    Publication date: October 1, 2020
    Inventors: Kaushal Gangakhedkar, Kallol Bera, Joseph Yudovsky
  • Patent number: 10763085
    Abstract: Plasma source assemblies comprising an RF hot electrode having a body and at least one return electrode spaced from the RF hot electrode to provide a gap in which a plasma can be formed. An RF feed is connected to the RF hot electrode at a distance from the inner peripheral end of the RF hot electrode that is less than or equal to about 25% of the length of the RF hot electrode. The RF hot electrode can include a leg and optional triangular portion near the leg that extends at an angle to the body of the RF hot electrode. A cladding material on one or more of the RF hot electrode and the return electrode can be variably spaced or have variable properties along the length of the plasma gap.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: September 1, 2020
    Assignee: Applied Materials, Inc.
    Inventors: Kallol Bera, Dmitry A. Dzilno, Anantha K. Subramani, John C. Forster, Tsutomu Tanaka
  • Publication number: 20200255943
    Abstract: Apparatus and methods for processing a substrate including an injector unit insert with a plurality of flow paths leading to a first plenum, each of the flow paths providing one or more of substantially the same residence time, length and/or conductance. Injector units including the injector unit inserts have increased flow uniformity.
    Type: Application
    Filed: April 28, 2020
    Publication date: August 13, 2020
    Applicant: Applied Materials, Inc.
    Inventors: Aaron Miller, Kallol Bera
  • Patent number: 10685864
    Abstract: Susceptor assemblies comprising a susceptor base and a plurality of pie-shaped skins thereon are described. A pie anchor can be positioned in the center of the susceptor base to hold the pie-shaped skins in place during processing.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: June 16, 2020
    Assignee: Applied Materials, Inc.
    Inventors: Kaushal Gangakhedkar, Kallol Bera, Joseph Yudovsky
  • Publication number: 20200161093
    Abstract: Embodiments described herein relate to apparatus and techniques for radio frequency (RF) phase control in a process chamber. A process volume is defined in the process chamber by a faceplate electrode and a support pedestal. A grounding bowl is disposed within the process chamber about the support pedestal opposite the process volume. The grounding bowl substantially fills a volume other than the process volume below the support pedestal. A phase tuner circuit is coupled to an RF mesh disposed in the support pedestal and the faceplate electrode. The tuner circuit adjusts a phase difference between a phase of the faceplate electrode and a phase of the RF mesh.
    Type: Application
    Filed: October 24, 2019
    Publication date: May 21, 2020
    Inventors: Xiaopu LI, Kallol BERA, Edward P. HAMMOND, IV, Jonghoon BAEK, Amit Kumar BANSAL, Jun MA, Satoru KOBAYASHI
  • Patent number: 10633741
    Abstract: Apparatus and methods for processing a substrate including an injector unit insert with a plurality of flow paths leading to a first plenum, each of the flow paths providing one or more of substantially the same residence time, length and/or conductance. Injector units including the injector unit inserts have increased flow uniformity.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: April 28, 2020
    Assignee: Applied Materials, Inc.
    Inventors: Aaron Miller, Kallol Bera