Patents by Inventor Kenichi Suzaki

Kenichi Suzaki 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: 11970771
    Abstract: A vaporization system includes a vaporization chamber having a first portion and a second portion. A first fluid supply part is connected to the first portion of the vaporization chamber, and configured to supply a mixed fluid in which a first carrier gas and a liquid precursor are mixed, toward the second portion. A second fluid supply part is configured to supply a second carrier gas toward the mixed fluid at the second portion.
    Type: Grant
    Filed: March 8, 2022
    Date of Patent: April 30, 2024
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventors: Atsushi Morikawa, Masakazu Shimada, Takeshi Kasai, Kenichi Suzaki, Hirohisa Yamazaki, Yoshimasa Nagatomi
  • Publication number: 20240093361
    Abstract: Described herein is a technique capable of stabilizing a supply flow rate of a vaporized gas. According to one aspect of the technique, there is provided a vaporizer including: a vessel in which a source is stored; a first heater capable of heating the source by immersion into the source stored in the vessel; a second heater capable of heating the vessel; a first temperature sensor capable of measuring a temperature of the source by immersion into the source; a second temperature sensor capable of measuring a temperature of the vessel; and a controller capable of controlling the first heater based on the temperature measured by the first temperature sensor and controlling the second heater based on the temperature measured by the second temperature sensor.
    Type: Application
    Filed: November 30, 2023
    Publication date: March 21, 2024
    Applicant: Kokusai Electric Corporation
    Inventors: Gen LI, Hirohisa YAMAZAKI, Kenichi SUZAKI
  • Patent number: 11929272
    Abstract: There is provided a technique that includes a substrate support including a support column made of metal and a plurality of supports installed at the support column and configured to support a plurality of substrates in multiple stages; a process chamber configured to accommodate the plurality of substrates supported by the substrate support; and a heater configured to heat the plurality of substrates accommodated in the process chamber, wherein the plurality of supports includes at least a contact portion configured to make contact with the plurality of substrates and made of at least one selected from the group of a metal oxide and a non-metal material.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: March 12, 2024
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventor: Kenichi Suzaki
  • Patent number: 11873555
    Abstract: Described herein is a technique capable of stabilizing a supply flow rate of a vaporized gas. According to one aspect of the technique, there is provided a vaporizer including: a liquid vessel in which a liquid source is stored; a first heater capable of heating the liquid source by immersion into the liquid source stored in the liquid vessel; a second heater capable of heating the liquid vessel; a first temperature sensor capable of measuring a temperature of the liquid source by immersion into the liquid source; a second temperature sensor capable of measuring a temperature of the liquid vessel; and a controller capable of controlling the first heater based on the temperature measured by the first temperature sensor and controlling the second heater based on the temperature measured by the second temperature sensor.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: January 16, 2024
    Assignee: Kokusai Electric Corporation
    Inventors: Gen Li, Hirohisa Yamazaki, Kenichi Suzaki
  • Patent number: 11866822
    Abstract: There is provided a technique that includes a precursor vessel in which a liquid precursor is stored; a first heater immersed in the liquid precursor stored in the precursor vessel and configured to heat the liquid precursor; a second heater configured to heat the precursor vessel; a first temperature sensor immersed in the liquid precursor stored in the precursor vessel and configured to measure a temperature of the liquid precursor; a second temperature sensor immersed in the liquid precursor stored in the precursor vessel and configured to measure a temperature of the liquid precursor; and a controller configured to be capable of: controlling the first heater based on the temperature measured by the first temperature sensor; and controlling the second heater based on the temperature measured by the second temperature sensor.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: January 9, 2024
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventors: Hirohisa Yamazaki, Ryuichi Nakagawa, Kenichi Suzaki, Yasunori Ejiri
  • Publication number: 20230332287
    Abstract: A substrate processing apparatus includes: a vaporization vessel; a liquid source replenishment line whose first end is connected to the vaporization vessel and whose second end is connected to a supply source of a liquid source; a first valve provided at the replenishment line; a second valve provided at the replenishment line and upstream of the first valve; a liquid source storage provided between the first valve and the second valve; and a controller for controlling opening and closing operations of the first valve and the second valve to supply the liquid source into the vaporization vessel by performing: (a) filling the liquid source storage with the liquid source by opening the second valve while the first valve is closed; and (b) closing the second valve after (a) and discharging the liquid source into the vaporization vessel by opening the first valve.
    Type: Application
    Filed: June 20, 2023
    Publication date: October 19, 2023
    Inventor: Kenichi SUZAKI
  • Publication number: 20230304149
    Abstract: According to the present disclosure, there is provided a technique for improving the deposit removal efficiency and reducing particle generation. According to one aspect thereof, there is provided a substrate processing apparatus including: a substrate support column; a heat insulator below a substrate support region; and a process vessel accommodating the substrate support column and the heat insulator. The heat insulator includes a side wall portion of a cylindrical shape facing an inner wall of the process vessel; and an upper end portion facing the substrate support region for closing an upper end of the side wall portion. At least a part of the upper end portion facing the substrate support region is constituted by an upper surface portion made of a first material whose thermal conductivity is higher than that of a second material constituting the upper end of the side wall portion and the substrate support column.
    Type: Application
    Filed: March 15, 2023
    Publication date: September 28, 2023
    Applicant: Kokusai Electric Corporation
    Inventors: Kenichi SUZAKI, Yuma Ikeda
  • Publication number: 20230223247
    Abstract: There is provided a technique that includes: (a) lowering a temperature in a process chamber supplied with a cleaning gas containing a halogen element while being heated to a first temperature, from the first temperature to a second temperature equal to or lower than a temperature at which substrate processing is performed in the process chamber, while vacuum-exhausting an inside of the process chamber; and (b) after (a), supplying a gas containing a water vapor into the process chamber while vacuum-exhausting the inside of the process chamber, to cause the halogen element remaining in the process chamber to react with the water vapor.
    Type: Application
    Filed: December 27, 2022
    Publication date: July 13, 2023
    Applicant: Kokusai Electric Corporation
    Inventors: Yuma IKEDA, Kazuki NONOMURA, Kenichi SUZAKI
  • Publication number: 20230098746
    Abstract: There is provided a technique that includes forming a film containing a first element and oxygen on a substrate by performing a cycle a predetermined number of times, the cycle including: (a) supplying a modifying agent to the substrate to form, on the substrate, an adsorption layer containing the modifying agent physically adsorbed on a surface of the substrate; (b) supplying a precursor containing the first element to the substrate and causing the precursor to react with the surface of the substrate to form a first layer containing the first element on the substrate; and (c) supplying an oxidizing agent to the substrate and causing the oxidizing agent to react with the first layer to modify the first layer into a second layer containing the first element and oxygen.
    Type: Application
    Filed: September 20, 2022
    Publication date: March 30, 2023
    Applicant: KOKUSAI ELECTRIC CORPORATION
    Inventors: Yoshimasa NAGATOMI, Hirohisa YAMAZAKI, Kenichi SUZAKI
  • Publication number: 20230096542
    Abstract: There is provided a technique that includes a reaction container configured to process a substrate; a cleaning gas supply system configured to supply a cleaning gas into the reaction container; a lid configured to be capable of closing an opening of the reaction container and made of a metallic material; a protector installed over a surface of the lid at a side facing an inside of the reaction container and including a surface composed of a first non-metallic material; an internal space formed between surfaces of the lid and the protector facing each other; and an inert gas supply system configured to supply an inert gas to the internal space in a state in which the opening is closed by the lid.
    Type: Application
    Filed: September 15, 2022
    Publication date: March 30, 2023
    Applicant: Kokusai Electric Corporation
    Inventors: Kenichi SUZAKI, Yuma IKEDA
  • Publication number: 20220403511
    Abstract: Provided is a technique including: a processing chamber that processes a substrate; a first gas supplier that supplies a metal-containing gas into the processing chamber; a second gas supplier that supplies a first oxygen-containing gas into the processing chamber; and an exhauster including a gas exhaust pipe and a trap that collects a component of the metal-containing gas contained in an exhaust gas using plasma, the exhauster discharging the exhaust gas from the processing chamber.
    Type: Application
    Filed: August 30, 2022
    Publication date: December 22, 2022
    Applicant: Kokusai Electric Corporation
    Inventors: Hirohisa YAMAZAKI, Kenichi SUZAKI, Yoshimasa NAGATOMI
  • Publication number: 20220186368
    Abstract: A vaporization system includes a vaporization chamber having a first portion and a second portion. A first fluid supply part is connected to the first portion of the vaporization chamber, and configured to supply a mixed fluid in which a first carrier gas and a liquid precursor are mixed, toward the second portion. A second fluid supply part is configured to supply a second carrier gas toward the mixed fluid at the second portion.
    Type: Application
    Filed: March 8, 2022
    Publication date: June 16, 2022
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Atsushi MORIKAWA, Masakazu SHIMADA, Takeshi KASAI, Kenichi SUZAKI, Hirohisa YAMAZAKI, Yoshimasa NAGATOMI
  • Patent number: 11293096
    Abstract: A vaporization system includes a vaporization chamber having a first portion and a second portion. A first fluid supply part is connected to the first portion of the vaporization chamber, and configured to supply a mixed fluid in which a first carrier gas and a liquid precursor are mixed, toward the second portion. A second fluid supply part is configured to supply a second carrier gas toward the mixed fluid at the second portion.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: April 5, 2022
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventors: Atsushi Morikawa, Masakazu Shimada, Takeshi Kasai, Kenichi Suzaki, Hirohisa Yamazaki, Yoshimasa Nagatomi
  • Publication number: 20220093386
    Abstract: According to one aspect thereof, there is provided a method of manufacturing a semiconductor device, including: forming an oxide film containing a predetermined element on a surface of a substrate provided with a pattern formed thereon by repeatedly performing a cycle including: (a) forming a first layer containing the predetermined element by supplying a source gas containing the predetermined element from an outer periphery of the substrate toward the surface; and (b) forming an oxide layer containing the predetermined element by supplying an oxidizing gas from the outer periphery toward the surface, wherein (a) and (b) are performed non-simultaneously. A supply time of the oxidizing gas is selected such that a thickness distribution of the oxide film becomes a predetermined distribution.
    Type: Application
    Filed: September 14, 2021
    Publication date: March 24, 2022
    Applicant: Kokusai Electric Corporation
    Inventors: Kazuki NONOMURA, Kenichi SUZAKI, Yoshimasa NAGATOMI
  • Publication number: 20210292895
    Abstract: Described herein is a technique capable of stabilizing a supply flow rate of a vaporized gas. According to one aspect of the technique, there is provided a vaporizer including: a liquid vessel in which a liquid source is stored; a first heater capable of heating the liquid source by immersion into the liquid source stored in the liquid vessel; a second heater capable of heating the liquid vessel; a first temperature sensor capable of measuring a temperature of the liquid source by immersion into the liquid source; a second temperature sensor capable of measuring a temperature of the liquid vessel; and a controller capable of controlling the first heater based on the temperature measured by the first temperature sensor and controlling the second heater based on the temperature measured by the second temperature sensor.
    Type: Application
    Filed: March 17, 2021
    Publication date: September 23, 2021
    Applicant: Kokusai Electric Corporation
    Inventors: Gen LI, Hirohisa YAMAZAKI, Kenichi SUZAKI
  • Publication number: 20210193486
    Abstract: There is provided a technique that includes: (a) supplying a chlorine-containing gas to an interior of a process vessel, to which an oxide film adheres, under a first pressure; (b) exhausting the interior of the process vessel; (c) supplying an oxygen-containing gas into the process vessel; (d) exhausting the interior of the process vessel; (e) supplying the chlorine-containing gas into the process vessel under a second pressure lower than the first pressure; (f) exhausting the interior of the process vessel; (g) supplying the oxygen-containing gas into the process vessel; and (h) exhausting the interior of the process vessel, wherein the oxide film which adheres to the interior of the process vessel is removed by performing each of (a) to (h) one or more times and setting a supply amount of the oxygen-containing gas in (c) different from a supply amount of the oxygen-containing gas in (g).
    Type: Application
    Filed: March 3, 2021
    Publication date: June 24, 2021
    Applicant: KOKUSAI ELECTRIC CORPORATION
    Inventors: Gen LI, Hirohisa YAMAZAKI, Kenichi SUZAKI, Yuji TAKEBAYASHI
  • Patent number: 11020760
    Abstract: A substrate processing apparatus includes: a process chamber accommodating substrates; a heating system for heating the process chamber to a predetermined temperature; a precursor gas supply system including a precursor gas nozzle and for supplying a precursor gas from the precursor gas nozzle to the process chamber; a reaction gas supply system configured to supply a reaction gas reacting with the precursor gas in the process chamber; and a control part configured to control the heating system, the precursor gas supply system and the reaction gas supply system to form a film on each of the plurality of substrates by performing a process, while heating the process chamber accommodating the plurality of substrates to the predetermined temperature. The process includes supplying the precursor gas from the precursor gas nozzle to the process chamber and supplying the reaction gas to the process chamber.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: June 1, 2021
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventors: Toshiki Fujino, Yuma Fujii, Kazuki Nonomura, Yoshinori Baba, Yuji Takebayashi, Kenichi Suzaki
  • Publication number: 20210079523
    Abstract: There is provided a technique that includes a precursor vessel in which a liquid precursor is stored; a first heater immersed in the liquid precursor stored in the precursor vessel and configured to heat the liquid precursor; a second heater configured to heat the precursor vessel; a first temperature sensor immersed in the liquid precursor stored in the precursor vessel and configured to measure a temperature of the liquid precursor; a second temperature sensor immersed in the liquid precursor stored in the precursor vessel and configured to measure a temperature of the liquid precursor; and a controller configured to be capable of: controlling the first heater based on the temperature measured by the first temperature sensor; and controlling the second heater based on the temperature measured by the second temperature sensor.
    Type: Application
    Filed: September 16, 2020
    Publication date: March 18, 2021
    Applicant: KOKUSAI ELECTRIC CORPORATION
    Inventors: Hirohisa YAMAZAKI, Ryuichi NAKAGAWA, Kenichi SUZAKI, Yasunori EJIRI
  • Publication number: 20210035835
    Abstract: There is provided a technique that includes a substrate support including a support column made of metal and a plurality of supports installed at the support column and configured to support a plurality of substrates in multiple stages; a process chamber configured to accommodate the plurality of substrates supported by the substrate support; and a heater configured to heat the plurality of substrates accommodated in the process chamber, wherein the plurality of supports includes at least a contact portion configured to make contact with the plurality of substrates and made of at least one selected from the group of a metal oxide and a non-metal material.
    Type: Application
    Filed: July 31, 2020
    Publication date: February 4, 2021
    Applicant: KOKUSAI ELECTRIC CORPORATION
    Inventor: Kenichi Suzaki
  • Patent number: 10876207
    Abstract: There is provided a technique that includes: a process chamber accommodating substrate; a storage tank including bottom portion having recess and wall portion and storing liquid precursor; a vaporizing part vaporizing the stored liquid precursor to generate precursor gas; a supply part supplying the generated precursor gas to the process chamber; a sensor disposed in the recess and detecting liquid level of the stored liquid precursor; a replenishment part replenishing the liquid precursor in the storage tank; and a controller controlling the supply part to supply the precursor gas to the process chamber to perform a substrate processing process for processing the substrate, and controlling, each time when the substrate processing process is performed a predetermined number of times, the replenishment part, based on the detected liquid level, to replenish the liquid precursor in the storage tank so that the liquid level becomes a predetermined level.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: December 29, 2020
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventors: Noriyuki Isobe, Kenichi Suzaki, Takeshi Kasai, Yoshitaka Kawahara, Masakazu Shimada