Patents by Inventor Kazuyuki Okuda

Kazuyuki Okuda 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: 11972934
    Abstract: There is provided a technique that includes: performing a set a plurality of times, the set including: (a) loading at least one substrate into a process container; (b) performing a process of forming a nitride film on the at least one substrate by supplying a film-forming gas to the at least one substrate supported by a support in the process container; (c) unloading the processed at least one substrate from an interior of the process container; and (d) supplying an oxidizing gas into the process container from which the processed at least one substrate has been unloaded so as to oxidize one part of the nitride film formed inside the process container in (b) into an oxide film and maintain another part of the nitride film, which is different from the one part of the nitride film, as it is without oxidizing the another part.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: April 30, 2024
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventors: Tomoki Imamura, Takaaki Noda, Kazuyuki Okuda, Masato Terasaki
  • Patent number: 11915927
    Abstract: Described herein is a technique capable of improving the controllability of firm thickness distribution. According to one aspect of the technique, there is provided a substrate processing apparatus including: a process chamber; a first and a second gas supply system; an exhaust system; and a controller for controlling the first and the second gas supply system and the exhaust system to form a film. The first gas supply system includes: a first and a second storage part; a first gas supply port for supplying a gas stored in the first storage part from an outer periphery toward a center of a substrate; and a second gas supply for supplying the gas stored in the second storage part from the outer periphery along a direction more inclined toward the outer periphery than a direction from the outer periphery toward the center of the substrate.
    Type: Grant
    Filed: May 13, 2022
    Date of Patent: February 27, 2024
    Assignee: Kokusai Electric Corporation
    Inventors: Kazuyuki Okuda, Syuzo Sakurai, Yasuhiro Inokuchi, Masayoshi Minami
  • Publication number: 20230298883
    Abstract: Provided is processing of a substrate including: forming film on substrate by performing cycle, multiple times, including non-simultaneously performing: (a) supplying precursor gas and inert gas to the substrate; and (b) supplying reaction gas to the substrate. In (a), at least one of the precursor and inert gas stored in first tank is supplied to the substrate, and at least one of the precursor and inert gas stored in second tank is supplied to the substrate. A concentration of the precursor gas in the first tank differs from that in the second tank. Further, in (a), the at least one of the precursor and inert gas is supplied from the first tank to the substrate, and the at least one of the precursor and inert gas is supplied from the second tank to the substrate to suppress multiple adsorption of molecules constituting the precursor gas on the substrate's surface.
    Type: Application
    Filed: May 24, 2023
    Publication date: September 21, 2023
    Applicant: Kokusai Electric Corporation
    Inventors: Masayuki ASAI, Tomoki Imamura, Kazuyuki Okuda, Yasuhiro Inokuchi, Norikazu Mizuno
  • Patent number: 11705325
    Abstract: Provided is processing of a substrate including: forming film on substrate by performing cycle, multiple times, including non-simultaneously performing: (a) supplying precursor gas and inert gas to the substrate; and (b) supplying reaction gas to the substrate. In (a), at least one of the precursor and inert gas stored in first tank is supplied to the substrate, and at least one of the precursor and inert gas stored in second tank is supplied to the substrate. A concentration of the precursor gas in the first tank differs from that in the second tank. Further, in (a), the at least one of the precursor and inert gas is supplied from the first tank to the substrate, and the at least one of the precursor and inert gas is supplied from the second tank to the substrate to suppress multiple adsorption of molecules constituting the precursor gas on the substrate's surface.
    Type: Grant
    Filed: November 8, 2022
    Date of Patent: July 18, 2023
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventors: Masayuki Asai, Tomoki Imamura, Kazuyuki Okuda, Yasuhiro Inokuchi, Norikazu Mizuno
  • Publication number: 20230101063
    Abstract: There is provided a technique that includes: (a) supplying a first gas containing a predetermined element to the substrate; (b) supplying a second gas containing carbon and nitrogen to the substrate; (c) supplying a nitrogen-containing gas activated by plasma to the substrate; (d) supplying an oxygen-containing gas to the substrate; and (e) forming a film containing at least the predetermined element, oxygen, carbon, and nitrogen on the substrate by: performing a cycle a first number of times of two or more, the cycle performing (a) to (d); or performing a cycle once or more, the cycle performing (a) to (d) in this order.
    Type: Application
    Filed: September 22, 2022
    Publication date: March 30, 2023
    Applicant: Kokusai Electric Corporation
    Inventors: Tao LIU, Kazuhiro HARADA, Tomoki IMAMURA, Kazuyuki OKUDA, Takaaki NODA
  • Publication number: 20230070910
    Abstract: Provided is processing of a substrate including: forming film on substrate by performing cycle, multiple times, including non-simultaneously performing: (a) supplying precursor gas and inert gas to the substrate; and (b) supplying reaction gas to the substrate. In (a), at least one of the precursor and inert gas stored in first tank is supplied to the substrate, and at least one of the precursor and inert gas stored in second tank is supplied to the substrate. A concentration of the precursor gas in the first tank differs from that in the second tank. Further, in (a), the at least one of the precursor and inert gas is supplied from the first tank to the substrate, and the at least one of the precursor and inert gas is supplied from the second tank to the substrate to suppress multiple adsorption of molecules constituting the precursor gas on the substrate's surface.
    Type: Application
    Filed: November 8, 2022
    Publication date: March 9, 2023
    Applicant: KOKUSAI ELECTRIC CORPORATION
    Inventors: Masayuki ASAI, Tomoki IMAMURA, Kazuyuki OKUDA, Yasuhiro INOKUCHI, Norikazu MIZUNO
  • Patent number: 11527401
    Abstract: There is provided technique including: forming film on substrate by performing cycle, predetermined number of times, including non-simultaneously performing: (a) supplying precursor gas and inert gas to the substrate; and (b) supplying reaction gas to the substrate, wherein in (a), at least one selected from the group of the precursor gas and the inert gas stored in first tank is supplied to the substrate, and at least one selected from the group of the precursor gas and the inert gas stored in second tank is supplied to the substrate, and concentration of the precursor gas in the first tank while at least one selected from the group of the precursor gas and the inert gas is stored in the first tank differs from that in the second tank while at least one selected from the group of the precursor gas and the inert gas is stored in the second tank.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: December 13, 2022
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventors: Masayuki Asai, Tomoki Imamura, Kazuyuki Okuda, Yasuhiro Inokuchi, Norikazu Mizuno
  • Publication number: 20220277952
    Abstract: Described herein is a technique capable of improving the controllability of firm thickness distribution. According to one aspect of the technique, there is provided a substrate processing apparatus including: a process chamber; a first and a second gas supply system; an exhaust system; and a controller for controlling the first and the second gas supply system and the exhaust system to form a film. The first gas supply system includes: a first and a second storage part; a first gas supply port for supplying a gas stored in the first storage part from an outer periphery toward a center of a substrate; and a second gas supply for supplying the gas stored in the second storage part from the outer periphery along a direction more inclined toward the outer periphery than a direction from the outer periphery toward the center of the substrate.
    Type: Application
    Filed: May 13, 2022
    Publication date: September 1, 2022
    Inventors: Kazuyuki OKUDA, Syuzo SAKURAI, Yasuhiro INOKUCHI, Masayoshi MINAMI
  • Publication number: 20220277938
    Abstract: There is provided a technique that includes a process chamber configured to process a substrate; a gas supplier configured to supply a gas into the process chamber; a first plasma electrode unit including a first reference electrode applied with a reference potential and at least one selected from the group of a first application electrode and a second application electrode applied with high-frequency power, the first plasma electrode unit configured to plasma-excite the gas; and a second plasma electrode unit including a second reference electrode applied with a reference potential and a third application electrode applied with high-frequency power, the third application electrode having a length different from a length of the first application electrode or the second application electrode, and the second plasma electrode unit configured to plasma-excite the gas.
    Type: Application
    Filed: December 23, 2021
    Publication date: September 1, 2022
    Applicant: KOKUSAI ELECTRIC CORPORATION
    Inventors: Tomoki IMAMURA, Kazuyuki OKUDA, Tsuyoshi TAKEDA, Daisuke HARA
  • Publication number: 20220208544
    Abstract: According to one aspect of a technique of the present disclosure, there is provided a method of manufacturing a semiconductor device, including: (A) forming a film containing a predetermined element and nitrogen on a substrate by performing a cycle a predetermined number of times, wherein the cycle includes: (a) forming a first layer by supplying a source gas containing the predetermined element and a halogen element to the substrate heated to a first temperature; (b) forming a second layer by modifying the first layer by supplying a plasma-excited first modification gas containing hydrogen free of nitrogen; and (c) forming a third layer by modifying the second layer by supplying a plasma-excited second modification gas containing nitrogen and hydrogen. A supply time TH of supplying the first modification gas in (b) is set to be longer than a supply time TN of supplying the second modification gas in (c).
    Type: Application
    Filed: March 17, 2022
    Publication date: June 30, 2022
    Applicant: KOKUSAI ELECTRIC CORPORATION
    Inventors: Yasunobu KOSHI, Kazuyuki OKUDA, Yoshitomo HASHIMOTO, Katsuyoshi HARADA
  • Patent number: 11361961
    Abstract: Described herein is a technique capable of improving the controllability of firm thickness distribution. According to one aspect of the technique, there is provided a substrate processing apparatus including: a process chamber; a first and a second gas supply system; an exhaust system; and a controller for controlling the first and the second gas supply system and the exhaust system to form a film. The first gas supply system includes: a first and a second storage part; a first gas supply port for supplying a gas stored in the first storage part from an outer periphery toward a center of a substrate; and a second gas supply for supplying the gas stored in the second storage part from the outer periphery along a direction more inclined toward the outer periphery than a direction from the outer periphery toward the center of the substrate.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: June 14, 2022
    Assignee: Kokusai Electric Corporation
    Inventors: Kazuyuki Okuda, Syuzo Sakurai, Yasuhiro Inokuchi, Masayoshi Minami
  • Publication number: 20220102136
    Abstract: There is included (a) loading a substrate into a process container; (b) performing a process of forming a film on the substrate in the process container by alternately or simultaneously performing, a predetermined number of times, supplying a precursor gas from a first supplier to the substrate, and supplying a reaction gas from a second supplier to the substrate; (c) unloading the processed substrate from an interior of the process container; and (d) oxidizing at least one part of a film formed inside the process container in (b) so as to change the at least one part into an oxide film in a state in which the processed substrate is unloaded from the interior of the process container, wherein in (d), an oxygen-containing gas and a hydrogen-containing gas are supplied into the process container and at that time, the hydrogen-containing gas is supplied toward the first supplier.
    Type: Application
    Filed: September 16, 2021
    Publication date: March 31, 2022
    Applicant: KOKUSAI ELECTRIC CORPORATION
    Inventors: Takaaki NODA, Tomoki IMAMURA, Kazuyuki OKUDA, Masato TERASAKI
  • Publication number: 20210407774
    Abstract: There is provided a technique that includes: performing a set a plurality of times, the set including: (a) loading at least one substrate into a process container; (b) performing a process of forming a nitride film on the at least one substrate by supplying a film-forming gas to the at least one substrate supported by a support in the process container; (c) unloading the processed at least one substrate from an interior of the process container; and (d) supplying an oxidizing gas into the process container from which the processed at least one substrate has been unloaded so as to oxidize one part of the nitride film formed inside the process container in (b) into an oxide film and maintain another part of the nitride film, which is different from the one part of the nitride film, as it is without oxidizing the another part.
    Type: Application
    Filed: June 29, 2021
    Publication date: December 30, 2021
    Applicant: KOKUSAI ELECTRIC CORPORATION
    Inventors: Tomoki IMAMURA, Takaaki NODA, Kazuyuki OKUDA, Masato TERASAKI
  • Publication number: 20200365388
    Abstract: There is provided technique including: forming film on substrate by performing cycle, predetermined number of times, including non-simultaneously performing: (a) supplying precursor gas and inert gas to the substrate; and (b) supplying reaction gas to the substrate, wherein in (a), at least one selected from the group of the precursor gas and the inert gas stored in first tank is supplied to the substrate, and at least one selected from the group of the precursor gas and the inert gas stored in second tank is supplied to the substrate, and concentration of the precursor gas in the first tank while at least one selected from the group of the precursor gas and the inert gas is stored in the first tank differs from that in the second tank while at least one selected from the group of the precursor gas and the inert gas is stored in the second tank
    Type: Application
    Filed: May 15, 2020
    Publication date: November 19, 2020
    Applicant: KOKUSAI ELECTRIC CORPORATION
    Inventors: Masayuki ASAI, Tomoki IMAMURA, Kazuyuki OKUDA, Yasuhiro INOKUCHI, Norikazu MIZUNO
  • Publication number: 20200258736
    Abstract: Described herein is a technique capable of improving the controllability of firm thickness distribution. According to one aspect of the technique, there is provided a substrate processing apparatus including: a process chamber; a first and a second gas supply system; an exhaust system; and a controller for controlling the first and the second gas supply system and the exhaust system to form a film. The first gas supply system includes: a first and a second storage part; a first gas supply port for supplying a gas stored in the first storage part from an outer periphery toward a center of a substrate; and a second gas supply for supplying the gas stored in the second storage part from the outer periphery along a direction more inclined toward the outer periphery than a direction from the outer periphery toward the center of the substrate.
    Type: Application
    Filed: February 11, 2020
    Publication date: August 13, 2020
    Inventors: Kazuyuki OKUDA, Syuzo SAKURAI, Yasuhiro INOKUCHI, Masayoshi MINAMI
  • Patent number: 10640869
    Abstract: A method of manufacturing a semiconductor device, includes: supplying precursor gas into process chamber in which plural substrates are accommodated by sequentially performing: supplying inert gas at first inert gas flow rate from first nozzle into the process chamber; supplying the inert gas at second inert gas flow rate higher than the first inert gas flow rate from the first nozzle into the process chamber while supplying precursor gas from the first nozzle into the process chamber; and supplying the inert gas at the first inert gas flow rate from the first nozzle into the process chamber while the process chamber is evacuated from an upstream side of flow of the precursor gas; stopping supply of the precursor gas; removing the precursor gas remaining in the process chamber; supplying reaction gas from a second nozzle into the process chamber; and removing the reaction gas remaining in the process chamber.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: May 5, 2020
    Assignee: Kokusai Electric Corporation
    Inventors: Kazuyuki Okuda, Masayoshi Minami, Yoshinobu Nakamura, Kosuke Takagi, Yukinao Kaga, Yuji Takebayashi
  • Publication number: 20190093222
    Abstract: A method of manufacturing a semiconductor device, includes: supplying precursor gas into process chamber in which plural substrates are accommodated by sequentially performing: supplying inert gas at first inert gas flow rate from first nozzle into the process chamber; supplying the inert gas at second inert gas flow rate higher than the first inert gas flow rate from the first nozzle into the process chamber while supplying precursor gas from the first nozzle into the process chamber; and supplying the inert gas at the first inert gas flow rate from the first nozzle into the process chamber while the process chamber is evacuated from an upstream side of flow of the precursor gas; stopping supply of the precursor gas; removing the precursor gas remaining in the process chamber; supplying reaction gas from a second nozzle into the process chamber; and removing the reaction gas remaining in the process chamber.
    Type: Application
    Filed: September 20, 2018
    Publication date: March 28, 2019
    Applicant: KOKUSAI ELECTRIC CORPORATION
    Inventors: Kazuyuki OKUDA, Masayoshi MINAMI, Yoshinobu NAKAMURA, Kosuke TAKAGI, Yukinao KAGA, Yuji TAKEBAYASHI
  • Patent number: 9963785
    Abstract: Disclosed is a method of manufacturing a semiconductor device including: performing a pre-process to a metal film or a GST film by supplying a first processing gas to a substrate, on a surface of which the metal film or the GST film is formed, without supplying a second processing gas; and performing a formation process to the substrate to which the pre-process has been performed such that a film is formed on the metal film or the GST film by executing at least one cycle of alternately (i) supplying the first processing gas, and (ii) supplying the second processing gas that is activated by plasma excitation.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: May 8, 2018
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Masayuki Asai, Koichi Honda, Mamoru Umemoto, Kazuyuki Okuda
  • Patent number: 9895727
    Abstract: A method of manufacturing a semiconductor device is disclosed. The method includes processing a substrate by supplying a process gas to the substrate in a process chamber. The method further includes performing a purge to an interior of the process chamber while periodically changing an internal pressure of the process chamber based on a pressure width by setting a process of supplying a purge gas into the process chamber to increase the internal pressure of the process chamber and a process of vacuum-exhausting an interior of the process chamber to decrease the internal pressure of the process chamber to one cycle and repeating the cycle a plurality of times.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: February 20, 2018
    Assignee: HITACHI KOKUSAI ELECTRIC, INC.
    Inventors: Yoshinobu Nakamura, Masayoshi Minami, Masayuki Asai, Kazuyuki Okuda, Yuji Urano
  • Patent number: D791091
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: July 4, 2017
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Hiromi Okada, Shinya Morita, Satoshi Aizawa, Masayoshi Minami, Kazuyuki Okuda, Masayuki Yamada