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).

  • Publication number: 20170087606
    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: Application
    Filed: September 22, 2016
    Publication date: March 30, 2017
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshinobu NAKAMURA, Masayoshi MINAMI, Masayuki ASAI, Kazuyuki OKUDA, Yuji URANO
  • Patent number: 9593422
    Abstract: Disclosed is a method of manufacturing a semiconductor device including: performing a pre-process to a substrate, on a surface of which a metal film or a GST film is formed, such that a first film is formed on the metal film or the GST film by executing at least one cycle of alternately performing (i) supplying a first processing gas, and (ii) supplying a second processing gas that is not activated by plasma excitation; and performing a formation process to the substrate to which the pre-process has been performed such that a second film is formed on the first 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: March 14, 2017
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Masayuki Asai, Koichi Honda, Mamoru Umemoto, Kazuyuki Okuda
  • Patent number: 9349587
    Abstract: In a low-temperature, a silicon nitride film having a low in-film chlorine (Cl) content and a high resistance to hydrogen fluoride (HF) is formed. The formation of the silicon nitride film includes (a) supplying a monochlorosilane (SiH3Cl or MCS) gas to a substrate disposed in a processing chamber, (b) supplying a plasma-excited hydrogen-containing gas to the substrate disposed in the processing chamber, (c) supplying a plasma-excited or heat-excited nitrogen-containing gas to the substrate disposed in the processing chamber, (d) supplying at least one of a plasma-excited nitrogen gas and a plasma-excited rare gas to the substrate disposed in the processing chamber, and (e) performing a cycle including the steps (a) through (d) a predetermined number of times to form a silicon nitride film on the substrate.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: May 24, 2016
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Yoshiro Hirose, Atsushi Sano, Kazuyuki Okuda, Kiyohiko Maeda
  • Patent number: 9218955
    Abstract: A method of manufacturing a semiconductor device includes forming a thin film containing a predetermined element, oxygen, carbon, and nitrogen on a substrate by performing a cycle a predetermined number of times. The cycle includes supplying a predetermined element-containing gas to the substrate; supplying a carbon-containing gas and a plasma-excited inert gas to the substrate; supplying an oxidizing gas to the substrate; and supplying a nitriding gas to the substrate.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: December 22, 2015
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Ryota Sasajima, Yoshinobu Nakamura, Kazuyuki Okuda
  • Patent number: 9175395
    Abstract: Disclosed is a substrate processing apparatus including: a processing chamber; plural buffer chambers; a first processing gas supply system that supplies a first processing gas to the processing chamber; a second processing gas supply system that supplies a second processing gas to the buffer chambers; a RF power source; plasma-generating electrodes in the buffer chambers; a heating system; and a controller that controls the first and second processing gas supply systems, the power source, and the heating system to expose the substrate having a metal film thereon to the first processing gas, and the second processing gas that is activated in the plural buffer chambers with an application of RF power to the electrodes and that is supplied from the buffer chambers to the processing chamber to form a film on the metal film while heating the substrate to a self-decomposition temperature of the first processing gas or lower.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: November 3, 2015
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Masayuki Asai, Koichi Honda, Mamoru Umemoto, Kazuyuki Okuda
  • Patent number: 9177786
    Abstract: A method of manufacturing a semiconductor device includes forming a thin film on a substrate by performing a cycle a predetermined number of times. The cycle includes supplying a source gas to the substrate, and supplying excited species from each of a plurality of excitation units provided at a side of the substrate to the substrate. Each of the plurality of excitation units generates the excited species by plasma-exciting a reaction gas. In supplying the excited species from each of the plurality of excitation units, an in-plane distribution of the excited species supplied from at least one of the plurality of excitation units in the substrate differs from an in-plane distribution of the excited species supplied from another excitation unit, other than the at least one excitation unit, among the plurality of excitation units, in the substrate.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: November 3, 2015
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Atsushi Sano, Yoshiro Hirose, Kiyohiko Maeda, Kazuyuki Okuda, Ryuji Yamamoto
  • Patent number: 9169553
    Abstract: A substrate processing device comprises a reaction vessel 11 forming a space receiving a substrate 1 and adapted to have a plurality of reaction gases supplied thereto to perform desired processing of the substrate, an exhaust port 16 formed in the reaction vessel 11 for exhausting the reaction vessel 11, and a gas supply system 70A, 70B for supplying at least a plurality of reaction gases into the reaction vessel 11, the gas supply system 70A, 70B including a cleaning gas supply unit for supplying a cleaning gas to perform desired processing of the substrate 1 to thereby remove adherents in the reaction vessel 11, and a post-processing gas supply unit for supplying a post-processing gas capable of removing the elements contained in the cleaning gas remaining in the reaction vessel 11 after the adherents have been removed by supplying the cleaning gas, the post-processing gas containing all of the reaction gases used in performing desired processing of the substrate.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: October 27, 2015
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Masanori Sakai, Nobuhito Shima, Kazuyuki Okuda
  • Publication number: 20150197854
    Abstract: Disclosed is a method of manufacturing a semiconductor device including: performing a pre-process to a substrate, on a surface of which a metal film or a GST film is formed, such that a first film is formed on the metal film or the GST film by executing at least one cycle of alternately performing (i) supplying a first processing gas, and (ii) supplying a second processing gas that is not activated by plasma excitation; and performing a formation process to the substrate to which the pre-process has been performed such that a second film is formed on the first 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: Application
    Filed: March 25, 2015
    Publication date: July 16, 2015
    Inventors: Masayuki ASAI, Koichi HONDA, Mamoru UMEMOTO, Kazuyuki OKUDA
  • Publication number: 20150197855
    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: Application
    Filed: March 25, 2015
    Publication date: July 16, 2015
    Inventors: Masayuki ASAI, Koichi HONDA, Mamoru UMEMOTO, Kazuyuki OKUDA
  • Publication number: 20150101533
    Abstract: Provided is a method of manufacturing a semiconductor device capable of forming a nitride layer having high resistance to hydrogen fluoride at low temperatures. The method includes forming a nitride film on a substrate by performing a cycle a predetermined number of times, the cycle including supplying a source gas to the substrate, supplying a plasma-excited hydrogen-containing gas to the substrate, supplying a plasma-excited or thermally excited nitriding gas to the substrate, and supplying at least one of a plasma-excited nitrogen gas and a plasma-excited rare gas to the substrate.
    Type: Application
    Filed: December 22, 2014
    Publication date: April 16, 2015
    Inventor: Kazuyuki OKUDA
  • Patent number: 8956984
    Abstract: Provided is a method of manufacturing a semiconductor device capable of forming a nitride layer having high resistance to hydrogen fluoride at low temperatures. The method includes forming a nitride film on a substrate by performing a cycle a predetermined number of times, the cycle including supplying a source gas to the substrate, supplying a plasma-excited hydrogen-containing gas to the substrate, supplying a plasma-excited or thermally excited nitriding gas to the substrate, and supplying at least one of a plasma-excited nitrogen gas and a plasma-excited rare gas to the substrate.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: February 17, 2015
    Assignee: Hitachi Kokusai Electric Inc.
    Inventor: Kazuyuki Okuda
  • Publication number: 20140080319
    Abstract: A method of manufacturing a semiconductor device includes forming a thin film containing a predetermined element, oxygen, carbon, and nitrogen on a substrate by performing a cycle a predetermined number of times. The cycle includes supplying a predetermined element-containing gas to the substrate; supplying a carbon-containing gas and a plasma-excited inert gas to the substrate; supplying an oxidizing gas to the substrate; and supplying a nitriding gas to the substrate.
    Type: Application
    Filed: September 16, 2013
    Publication date: March 20, 2014
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Ryota SASAJIMA, Yoshinobu NAKAMURA, Kazuyuki OKUDA
  • Publication number: 20140038429
    Abstract: In a low-temperature, a silicon nitride film having a low in-film chlorine (Cl) content and a high resistance to hydrogen fluoride (HF) is formed. The formation of the silicon nitride film includes (a) supplying a monochlorosilane (SiH3Cl or MCS) gas to a substrate disposed in a processing chamber, (b) supplying a plasma-excited hydrogen-containing gas to the substrate disposed in the processing chamber, (c) supplying a plasma-excited or heat-excited nitrogen-containing gas to the substrate disposed in the processing chamber, (d) supplying at least one of a plasma-excited nitrogen gas and a plasma-excited rare gas to the substrate disposed in the processing chamber, and (e) performing a cycle including the steps (a) through (d) a predetermined number of times to form a silicon nitride film on the substrate.
    Type: Application
    Filed: October 2, 2013
    Publication date: February 6, 2014
    Applicant: Hitachi Kokusai Electric Inc.
    Inventors: Yoshiro Hirose, Atsushi Sano, Kazuyuki Okuda, Kiyohiko Maeda
  • Patent number: 8575042
    Abstract: In a low-temperature, a silicon nitride film having a low in-film chlorine (Cl) content and a high resistance to hydrogen fluoride (HF) is formed. The formation of the silicon nitride film includes (a) supplying a monochlorosilane (SiH3Cl or MCS) gas to a substrate disposed in a processing chamber, (b) supplying a plasma-excited hydrogen-containing gas to the substrate disposed in the processing chamber, (c) supplying a plasma-excited or heat-excited nitrogen-containing gas to the substrate disposed in the processing chamber, (d) supplying at least one of a plasma-excited nitrogen gas and a plasma-excited rare gas to the substrate disposed in the processing chamber, and (e) performing a cycle including the steps (a) through (d) a predetermined number of times to form a silicon nitride film on the substrate.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: November 5, 2013
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Yosuke Ota, Yoshiro Hirose, Atsushi Sano, Osamu Kasahara, Kazuyuki Okuda, Kiyohiko Maeda
  • Patent number: 8535479
    Abstract: Provided is a substrate processing apparatus including: a processing chamber for processing a substrate; a material supply unit for supplying a Si material, an oxidation material and a catalyst into the processing chamber; a heating unit for heating the substrate; and a controller for controlling at least the material supply unit and the heating unit, wherein the controller is configured to control the heating unit to heat the substrate with a first photoresist pattern formed thereon at a processing temperature lower than a deformation temperature of a first photoresist constituting the first photoresist pattern, and to control the material supply unit to alternately supply the silicon-containing material and the catalyst, and alternately supply the oxidation material and the catalyst into the processing chamber in a repeated manner to form on the substrate a thin film having a thickness equal to 5% of one half pitch of the first photoresist pattern.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: September 17, 2013
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Norikazu Mizuno, Kenji Kanayama, Kazuyuki Okuda, Yoshiro Hirose, Masayuki Asai
  • Patent number: 8366868
    Abstract: A substrate processing apparatus cleaning method that includes: containing a cleaning gas in a reaction tube without generating a gas flow of the cleaning gas in the reaction tube by supplying the cleaning gas into the reaction tube and by completely stopping exhaustion of the cleaning gas from the reaction tube or by exhausting the cleaning gas at an exhausting rate which substantially does not affect uniform diffusion of the cleaning gas in the reaction tube from at a point of time of a period from a predetermined point of time before the cleaning gas is supplied into the reaction tube to a point of time when several seconds are elapsed after starting of supply of the cleaning gas into the reaction tube; and thereafter exhausting the cleaning gas from the reaction tube.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: February 5, 2013
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Kazuyuki Okuda, Toru Kagaya, Masanori Sakai
  • Publication number: 20120240348
    Abstract: A substrate processing apparatus cleaning method that includes: containing a cleaning gas in a reaction tube without generating a gas flow of the cleaning gas in the reaction tube by supplying the cleaning gas into the reaction tube and by completely stopping exhaustion of the cleaning gas from the reaction tube or by exhausting the cleaning gas at an exhausting rate which substantially does not affect uniform diffusion of the cleaning gas in the reaction tube from at a point of time of a period from a predetermined point of time before the cleaning gas is supplied into the reaction tube to a point of time when several seconds are elapsed after starting of supply of the cleaning gas into the reaction tube; and thereafter exhausting the cleaning gas from the reaction tube.
    Type: Application
    Filed: June 5, 2012
    Publication date: September 27, 2012
    Inventors: Kazuyuki OKUDA, Toru Kagaya, Masanori Sakai
  • Patent number: 8261692
    Abstract: A substrate processing apparatus comprises a reaction chamber which is to accommodate stacked substrates, a gas introducing portion, and a buffer chamber, wherein the gas introducing portion is provided along a stacking direction of the substrates, and introduces substrate processing gas into the buffer chamber, the buffer chamber includes a plurality of gas-supply openings provided along the stacking direction of the substrates, and the processing gas introduced from the gas introducing portion is supplied from the gas-supply openings to the reaction chamber.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: September 11, 2012
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Tadashi Kontani, Kazuyuki Toyoda, Taketoshi Sato, Toru Kagaya, Nobuhito Shima, Nobuo Ishimaru, Masanori Sakai, Kazuyuki Okuda, Yasushi Yagi, Seiji Watanabe, Yasuo Kunii
  • Publication number: 20120220137
    Abstract: In a low-temperature, a silicon nitride film having a low in-film chlorine (Cl) content and a high resistance to hydrogen fluoride (HF) is formed. The formation of the silicon nitride film includes (a) supplying a monochlorosilane (SiH3Cl or MCS) gas to a substrate disposed in a processing chamber, (b) supplying a plasma-excited hydrogen-containing gas to the substrate disposed in the processing chamber, (c) supplying a plasma-excited or heat-excited nitrogen-containing gas to the substrate disposed in the processing chamber, (d) supplying at least one of a plasma-excited nitrogen gas and a plasma-excited rare gas to the substrate disposed in the processing chamber, and (e) performing a cycle including the steps (a) through (d) a predetermined number of times to form a silicon nitride film on the substrate.
    Type: Application
    Filed: February 27, 2012
    Publication date: August 30, 2012
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yosuke Ota, Yoshiro Hirose, Atsushi Sano, Osamu Kasahara, Kazuyuki Okuda, Kiyohiko Maeda
  • 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