Patents by Inventor Rupankar CHOUDHURY

Rupankar CHOUDHURY 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: 20240282605
    Abstract: An apparatus and system for minimizing particle return to the processing area of a processing chamber are disclosed herein. In one example, a particle shield for a semiconductor vacuum processing chamber includes an annular ring, a plurality of rib supports, and a plurality of louver fins. The annular ring has top surface, a bottom surface, and a plurality of cutaways. The top surface has an upper outer portion and a lower inner portion. The plurality of rib supports are disposed on and supported by the lower inner portion. The plurality of louver fins have a truncated conical shape, a bottom surface of the louver fins supported in a recess formed in a top surface of the rib supports. Each of the plurality of louver fins are disposed between adjacent concentric louver fins that have an outer diameter greater than an inner diameter of the outwardly adjacent louver fin.
    Type: Application
    Filed: February 21, 2023
    Publication date: August 22, 2024
    Applicant: Applied Materials, Inc.
    Inventors: Rupankar CHOUDHURY, Sanjay G. KAMATH, Sridhar BACHU
  • Publication number: 20240234167
    Abstract: Exemplary substrate processing systems may include a lid plate. The systems may include a plurality of processing regions. The systems may include at least one splitter. Each splitter may include a top surface and side surfaces. Each splitter may define an inlet and a plurality of outlets. Each inlet and outlet may extend through a side surface. Each splitter may define an inlet lumen that extends from the fluid inlet to a hub. Each splitter may define a plurality of outlet lumens that each extend from the hub to one of the outlets. Each of the outlet lumens may have a same length. The systems may include a plurality of output manifolds. Each of the output manifolds may be coupled with a respective processing region. The systems may include a plurality of valves. At least one valve may be coupled between each outlet and an output manifold.
    Type: Application
    Filed: January 10, 2023
    Publication date: July 11, 2024
    Applicant: Applied Materials, Inc.
    Inventors: Shashank Sharma, Udit Suryakant Kotagi, Diwakar Kedlaya, Mayur Govind Kulkarni, Rupankar Choudhury
  • Patent number: 11862475
    Abstract: A semiconductor processing system includes a remote plasma source (RPS), a faceplate, and an output manifold positioned between the RPS and the faceplate. The output manifold is characterized by a plurality of purge outlets that are fluidly coupled with a purge gas source and a plurality of deposition outlets that are fluidly coupled with a deposition gas source. A delivery tube extends between and fluidly couples the RPS and the faceplate. The delivery tube is characterized by a generally cylindrical sidewall that defines an upper plurality of apertures that are arranged in a radial pattern. Each of the upper apertures is fluidly coupled with one of the purge outlets. The generally cylindrical sidewall defines a lower plurality of apertures that are arranged in a radial pattern and below the upper plurality of apertures. Each of the lower apertures is fluidly coupled with one of the deposition outlets.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: January 2, 2024
    Assignee: Applied Materials, Inc.
    Inventors: Fang Ruan, Diwakar Kedlaya, Amit Bansal, Venkata Sharat Chandra Parimi, Rajaram Narayanan, Badri N. Ramamurthi, Sherry L. Mings, Job George Konnoth Joseph, Rupankar Choudhury
  • Patent number: 11610800
    Abstract: Exemplary support assemblies may include an electrostatic chuck body defining a support surface that defines a substrate seat. The assemblies may include a support stem coupled with the chuck body. The assemblies may include a heater embedded within the chuck body. The assemblies may include a first bipolar electrode embedded within the electrostatic chuck body between the heater and support surface. The assemblies may include a second bipolar electrode embedded within the chuck body between the heater and support surface. The assemblies may include at least one inner capacitive sensor embedded within the electrostatic chuck body at a position proximate a center of the substrate seat. The assemblies may include at least one outer capacitive sensor embedded within the electrostatic chuck body at a position proximate a peripheral edge of the substrate seat.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: March 21, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Job George Konnoth Joseph, Syam Sundeep Boosa, Gopu Krishna, Rupankar Choudhury
  • Publication number: 20220301915
    Abstract: Exemplary support assemblies may include an electrostatic chuck body defining a support surface that defines a substrate seat. The assemblies may include a support stem coupled with the chuck body. The assemblies may include a heater embedded within the chuck body. The assemblies may include a first bipolar electrode embedded within the electrostatic chuck body between the heater and support surface. The assemblies may include a second bipolar electrode embedded within the chuck body between the heater and support surface. The assemblies may include at least one inner capacitive sensor embedded within the electrostatic chuck body at a position proximate a center of the substrate seat. The assemblies may include at least one outer capacitive sensor embedded within the electrostatic chuck body at a position proximate a peripheral edge of the substrate seat.
    Type: Application
    Filed: March 22, 2021
    Publication date: September 22, 2022
    Applicant: Applied Materials, Inc.
    Inventors: Job George Konnoth Joseph, Syam Sundeep Boosa, Gopu Krishna, Rupankar Choudhury
  • Patent number: 11326256
    Abstract: Embodiments described herein relate to apparatus and techniques for mechanical isolation and thermal insulation in a process chamber. In one embodiment, an insulating layer is disposed between a dome assembly and a gas ring. The insulating layer is configured to maintain a temperature of the dome assembly and prevent thermal energy transfer from the dome assembly to the gas ring. The insulating layer provides mechanical isolation of the dome assembly from the gas ring. The insulating layer also provides thermal insulation between the dome assembly and the gas ring. The insulating layer may be fabricated from a polyimide containing material, which substantially reduces an occurrence of deformation of the insulating layer.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: May 10, 2022
    Assignee: Applied Materials, Inc.
    Inventors: Luke Bonecutter, Yunzhe Yang, Rupankar Choudhury, Abhijit Kangude
  • Publication number: 20220122851
    Abstract: A semiconductor processing system includes a remote plasma source (RPS), a faceplate, and an output manifold positioned between the RPS and the faceplate. The output manifold is characterized by a plurality of purge outlets that are fluidly coupled with a purge gas source and a plurality of deposition outlets that are fluidly coupled with a deposition gas source. A delivery tube extends between and fluidly couples the RPS and the faceplate. The delivery tube is characterized by a generally cylindrical sidewall that defines an upper plurality of apertures that are arranged in a radial pattern. Each of the upper apertures is fluidly coupled with one of the purge outlets. The generally cylindrical sidewall defines a lower plurality of apertures that are arranged in a radial pattern and below the upper plurality of apertures. Each of the lower apertures is fluidly coupled with one of the deposition outlets.
    Type: Application
    Filed: October 15, 2020
    Publication date: April 21, 2022
    Applicant: Applied Materials, Inc.
    Inventors: Fang Ruan, Diwakar Kedlaya, Amit Bansal, Venkata Sharat Chandra Parimi, Rajaram Narayanan, Badri N. Ramamurthi, Sherry L. Mings, Job George Konnoth Joseph, Rupankar Choudhury
  • Patent number: 10858735
    Abstract: Alignment systems employing actuators provide relative displacement between lid assemblies of process chambers and substrates, and related methods are disclosed. A process chamber includes chamber walls defining a process volume in which a substrate may be placed and the walls support a lid assembly of the process chamber. The lid assembly contains at least one of an energy source and a process gas dispenser. Moreover, an alignment system may include at least one each of a bracket, an interface member, and an actuator. By attaching the bracket to the chamber wall and securing the interface member to the lid assembly, the actuator may communicate with the bracket and the interface member to provide relative displacement between the chamber wall and the lid assembly. In this manner, the lid assembly may be positioned relative to the substrate to improve process uniformity across the substrate within the process chamber.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: December 8, 2020
    Assignee: Applied Materials, Inc.
    Inventors: Danny D. Wang, Jason Michael Lamb, Jun Tae Choi, Rupankar Choudhury, Zhong Qiang Hua, Juan Carlos Rocha-Alvarez
  • Publication number: 20200219698
    Abstract: Embodiments of the present disclosure generally relate to a semiconductor processing apparatus. More specifically, embodiments of the disclosure relate to generating and controlling plasma. A process chamber includes a chamber body that includes one or more chamber walls and defines a processing region. The process chamber also includes two or more inductively driven radio frequency (RF) coils in a concentric axial alignment, the RF coils arranged near the chamber walls to strike and sustain a plasma inside the chamber body, where at least two of the two or more RF coils are in a recursive configuration.
    Type: Application
    Filed: November 8, 2019
    Publication date: July 9, 2020
    Inventors: Zheng John YE, Abhijit KANGUDE, Luke BONECUTTER, Rupankar CHOUDHURY, Jay D. PINSON, II
  • Publication number: 20200181772
    Abstract: Embodiments described herein relate to apparatus and techniques for mechanical isolation and thermal insulation in a process chamber. In one embodiment, an insulating layer is disposed between a dome assembly and a gas ring. The insulating layer is configured to maintain a temperature of the dome assembly and prevent thermal energy transfer from the dome assembly to the gas ring. The insulating layer provides mechanical isolation of the dome assembly from the gas ring. The insulating layer also provides thermal insulation between the dome assembly and the gas ring. The insulating layer may be fabricated from a polyimide containing material, which substantially reduces an occurrence of deformation of the insulating layer.
    Type: Application
    Filed: November 21, 2019
    Publication date: June 11, 2020
    Inventors: Luke BONECUTTER, Yunzhe YANG, Rupankar CHOUDHURY, Abhijit KANGUDE
  • Publication number: 20200118850
    Abstract: Embodiments described herein include integrated systems used to directly monitor a substrate temperature during a plasma enhanced deposition process and methods related thereto. In one embodiment, a substrate support assembly includes a support shaft, a substrate support disposed on the support shaft, and a substrate temperature monitoring system for measuring a temperature of a substrate to be disposed on the substrate support. The substrate temperature monitoring system includes a optical fiber tube, a light guide coupled to the optical fiber tube, and a cooling assembly disposed about a junction of the optical fiber tube and the light guide. Herein, at least a portion of the light guide is disposed in an opening extending through the support shaft and into the substrate support and the cooling assembly maintains the optical fiber tube at a temperature of less than about 100° C. during substrate processing.
    Type: Application
    Filed: December 16, 2019
    Publication date: April 16, 2020
    Inventors: Yizhen ZHANG, Rupankar CHOUDHURY, Jay D. PINSON, II, Jason M. SCHALLER, Hanish Kumar PANAVALAPPIL KUMARANKUTTY
  • Publication number: 20190390334
    Abstract: Alignment systems employing actuators provide relative displacement between lid assemblies of process chambers and substrates, and related methods are disclosed. A process chamber includes chamber walls defining a process volume in which a substrate may be placed and the walls support a lid assembly of the process chamber. The lid assembly contains at least one of an energy source and a process gas dispenser. Moreover, an alignment system may include at least one each of a bracket, an interface member, and an actuator. By attaching the bracket to the chamber wall and securing the interface member to the lid assembly, the actuator may communicate with the bracket and the interface member to provide relative displacement between the chamber wall and the lid assembly. In this manner, the lid assembly may be positioned relative to the substrate to improve process uniformity across the substrate within the process chamber.
    Type: Application
    Filed: September 5, 2019
    Publication date: December 26, 2019
    Inventors: Danny D. WANG, Jason Michael LAMB, Jun Tae CHOI, Rupankar CHOUDHURY, Zhong Qiang HUA, Juan Carlos ROCHA-ALVAREZ
  • Patent number: 10510567
    Abstract: Embodiments described herein include integrated systems used to directly monitor a substrate temperature during a plasma enhanced deposition process and methods related thereto. In one embodiment, a substrate support assembly includes a support shaft, a substrate support disposed on the support shaft, and a substrate temperature monitoring system for measuring a temperature of a substrate to be disposed on the substrate support. The substrate temperature monitoring system includes a optical fiber tube, a light guide coupled to the optical fiber tube, and a cooling assembly disposed about a junction of the optical fiber tube and the light guide. Herein, at least a portion of the light guide is disposed in an opening extending through the support shaft and into the substrate support and the cooling assembly maintains the optical fiber tube at a temperature of less than about 100° C. during substrate processing.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: December 17, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Yizhen Zhang, Rupankar Choudhury, Jay D. Pinson, II, Jason M. Schaller, Hanish Kumar Panavalappil Kumarankutty
  • Patent number: 10435786
    Abstract: Alignment systems employing actuators provide relative displacement between lid assemblies of process chambers and substrates, and related methods are disclosed. A process chamber includes chamber walls defining a process volume in which a substrate may be placed and the walls support a lid assembly of the process chamber. The lid assembly contains at least one of an energy source and a process gas dispenser. Moreover, an alignment system may include at least one each of a bracket, an interface member, and an actuator. By attaching the bracket to the chamber wall and securing the interface member to the lid assembly, the actuator may communicate with the bracket and the interface member to provide relative displacement between the chamber wall and the lid assembly. In this manner, the lid assembly may be positioned relative to the substrate to improve process uniformity across the substrate within the process chamber.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: October 8, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Danny D. Wang, Jun Tae Choi, Rupankar Choudhury, Zhong Qiang Hua, Juan Carlos Rocha-Alvarez, Jason Michael Lamb
  • Patent number: 10388549
    Abstract: Implementations of the present disclosure generally relate to an improved factory interface that is coupled to an on-board metrology housing configured for measuring film properties of a substrate. In one implementation, an apparatus comprises a factory interface, and a metrology housing removably coupled to the factory interface through a load port, the metrology housing comprises an on-board metrology assembly for measuring properties of a substrate to be transferred into the metrology housing.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: August 20, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Khokan C. Paul, Jay D. Pinson, II, Juan Carlos Rocha-Alvarez, Hari K. Ponnekanti, Rupankar Choudhury, Shekhar Athani, Sandeep Kumpala, Hanish Kumar Panavalappil Kumarankutty
  • Publication number: 20180323093
    Abstract: Embodiments described herein include integrated systems used to directly monitor a substrate temperature during a plasma enhanced deposition process and methods related thereto. In one embodiment, a substrate support assembly includes a support shaft, a substrate support disposed on the support shaft, and a substrate temperature monitoring system for measuring a temperature of a substrate to be disposed on the substrate support. The substrate temperature monitoring system includes a optical fiber tube, a light guide coupled to the optical fiber tube, and a cooling assembly disposed about a junction of the optical fiber tube and the light guide. Herein, at least a portion of the light guide is disposed in an opening extending through the support shaft and into the substrate support and the cooling assembly maintains the optical fiber tube at a temperature of less than about 100° C. during substrate processing.
    Type: Application
    Filed: May 3, 2018
    Publication date: November 8, 2018
    Inventors: Yizhen ZHANG, Rupankar CHOUDHURY, Jay D. PINSON, II, Jason M. SCHALLER, Hanish Kumar PANAVALAPPIL KUMARANKUTTY
  • Publication number: 20170148654
    Abstract: Implementations of the present disclosure generally relate to an improved factory interface that is coupled to an on-board metrology housing configured for measuring film properties of a substrate. In one implementation, an apparatus comprises a factory interface, and a metrology housing removably coupled to the factory interface through a load port, the metrology housing comprises an on-board metrology assembly for measuring properties of a substrate to be transferred into the metrology housing.
    Type: Application
    Filed: November 9, 2016
    Publication date: May 25, 2017
    Inventors: Khokan C. PAUL, Jay D. PINSON, II, Juan Carlos ROCHA-ALVAREZ, Hari K. PONNEKANTI, Rupankar CHOUDHURY, Shekhar ATHANI, Sandeep KUMPALA, Hanish Kumar PANAVALAPPIL KUMARANKUTTY
  • Publication number: 20160068951
    Abstract: Alignment systems employing actuators provide relative displacement between lid assemblies of process chambers and substrates, and related methods are disclosed. A process chamber includes chamber walls defining a process volume in which a substrate may be placed and the walls support a lid assembly of the process chamber. The lid assembly contains at least one of an energy source and a process gas dispenser. Moreover, an alignment system may include at least one each of a bracket, an interface member, and an actuator. By attaching the bracket to the chamber wall and securing the interface member to the lid assembly, the actuator may communicate with the bracket and the interface member to provide relative displacement between the chamber wall and the lid assembly. In this manner, the lid assembly may be positioned relative to the substrate to improve process uniformity across the substrate within the process chamber.
    Type: Application
    Filed: October 23, 2014
    Publication date: March 10, 2016
    Inventors: Danny D. WANG, Jun Tae CHOI, Rupankar CHOUDHURY, Zhong Qiang HUA, Juan Carlos ROCHA-ALVAREZ, Jason Michael LAMB