Patents by Inventor Unryu Ogawa

Unryu Ogawa 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: 20200392625
    Abstract: Described herein is a technique capable of suppressing or preventing an inside of a source gas nozzle from being heated to a substrate processing temperature when a source gas is supplied through the source gas nozzle into a reaction tube in which a substrate is accommodated. According to one aspect of the technique, there is provided a substrate processing apparatus including: a reaction tube made of a first material and capable of accommodating a substrate; and a source gas nozzle provided in the reaction tube and at least a part thereof made of a second material whose reflectance is higher than that of the first material and whose surface is rougher than that of the first material by bubbles contained therein, wherein a source gas is supplied through the source gas nozzle.
    Type: Application
    Filed: September 1, 2020
    Publication date: December 17, 2020
    Inventors: Yuji TAKEBAYASHI, Unryu OGAWA, Toshiki FUJINO, Yukihito HADA, Naoko TSUNODA
  • Patent number: 10192735
    Abstract: A manufacturing method of a semiconductor device includes generating hydrogen radicals by plasma excitation of hydrogen gas and exposing a surface of a substrate on which silicon and metal are exposed to a reducing atmosphere created with the hydrogen radicals, and generating hydrogen radicals and hydroxyl radicals by plasma excitation of a mixed gas of hydrogen gas and oxygen-containing gas and oxidizing the silicon exposed on the surface of the substrate by exposing the surface of the substrate to the hydrogen radicals and hydroxyl radicals to obtain the substrate on which the metal and oxidized silicon are formed.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: January 29, 2019
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventors: Tatsushi Ueda, Tadashi Terasaki, Unryu Ogawa, Akito Hirano
  • Patent number: 10163663
    Abstract: A configuration capable of increasing an exhaust capability of an apparatus without degrading an operation of the apparatus includes: a processing furnace; an exhaust unit configured to exhaust a gas from a process chamber defined by the processing furnace, the exhaust unit having a first sidewall and a second sidewall opposite to the first sidewall; and an exhaust device disposed adjacent to the exhaust unit and connected to the exhaust unit via a connecting pipe provided with a vibration-absorbing member, the exhaust device having a first sidewall and a second sidewall opposite to the first sidewall, wherein the processing furnace, the exhaust unit and the exhaust device are disposed on a same plane, and only the first sidewall of the first and the second sidewalls of the exhaust device is disposed in a space defined by extensions of the first and the second sidewalls of the exhaust unit.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: December 25, 2018
    Assignee: Kokusai Electric Corporation
    Inventors: Toshihiko Yonejima, Masanori Okuno, Masakazu Sakata, Hiroki Okamiya, Takeshi Kasai, Katsuaki Nogami, Takashi Ozaki, Kenji Kanayama, Unryu Ogawa, Seiyo Nakashima, Tomoyuki Yamada, Masayuki Yamada
  • Publication number: 20180144953
    Abstract: A configuration capable of increasing an exhaust capability of an apparatus without degrading an operation of the apparatus includes: a processing furnace; an exhaust unit configured to exhaust a gas from a process chamber defined by the processing furnace, the exhaust unit having a first sidewall and a second sidewall opposite to the first sidewall; and an exhaust device disposed adjacent to the exhaust unit and connected to the exhaust unit via a connecting pipe provided with a vibration-absorbing member, the exhaust device having a first sidewall and a second sidewall opposite to the first sidewall, wherein the processing furnace, the exhaust unit and the exhaust device are disposed on a same plane, and only the first sidewall of the first and the second sidewalls of the exhaust device is disposed in a space defined by extensions of the first and the second sidewalls of the exhaust unit.
    Type: Application
    Filed: November 22, 2017
    Publication date: May 24, 2018
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Toshihiko YONEJIMA, Masanori OKUNO, Masakazu SAKATA, Hiroki OKAMIYA, Takeshi KASAI, Katsuaki NOGAMI, Takashi OZAKI, Kenji KANAYAMA, Unryu OGAWA, Seiyo NAKASHIMA, Tomoyuki YAMADA, Masayuki YAMADA
  • Publication number: 20170338106
    Abstract: A manufacturing method of a semiconductor device includes generating hydrogen radicals by plasma excitation of hydrogen gas and exposing a surface of a substrate on which silicon and metal are exposed to a reducing atmosphere created with the hydrogen radicals, and generating hydrogen radicals and hydroxyl radicals by plasma excitation of a mixed gas of hydrogen gas and oxygen-containing gas and oxidizing the silicon exposed on the surface of the substrate by exposing the surface of the substrate to the hydrogen radicals and hydroxyl radicals to obtain the substrate on which the metal and oxidized silicon are formed.
    Type: Application
    Filed: August 3, 2017
    Publication date: November 23, 2017
    Inventors: Tatsushi UEDA, Tadashi TERASAKI, Unryu OGAWA, Akito HIRANO
  • Patent number: 9754780
    Abstract: A manufacturing method of a semiconductor device includes generating hydrogen radicals by plasma excitation of hydrogen gas and exposing a surface of a substrate on which silicon and metal are exposed to a reducing atmosphere created with the hydrogen radicals, and generating hydrogen radicals and hydroxyl radicals by plasma excitation of a mixed gas of hydrogen gas and oxygen-containing gas and oxidizing the silicon exposed on the surface of the substrate by exposing the surface of the substrate to the hydrogen radicals and hydroxyl radicals to obtain the substrate on which the metal and oxidized silicon are formed.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: September 5, 2017
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Tatsushi Ueda, Tadashi Terasaki, Unryu Ogawa, Akito Hirano
  • Publication number: 20160086797
    Abstract: A manufacturing method of a semiconductor device includes generating hydrogen radicals by plasma excitation of hydrogen gas and exposing a surface of a substrate on which silicon and metal are exposed to a reducing atmosphere created with the hydrogen radicals, and generating hydrogen radicals and hydroxyl radicals by plasma excitation of a mixed gas of hydrogen gas and oxygen-containing gas and oxidizing the silicon exposed on the surface of the substrate by exposing the surface of the substrate to the hydrogen radicals and hydroxyl radicals to obtain the substrate on which the metal and oxidized silicon are formed.
    Type: Application
    Filed: December 1, 2015
    Publication date: March 24, 2016
    Inventors: Tatsushi UEDA, Tadashi TERASAKI, Unryu OGAWA, Akito HIRANO
  • Patent number: 9236242
    Abstract: A substrate can be appropriately oxidized, while oxidation of the substrate can be suppressed. The present invention includes a step of generating mixed plasma by causing a mixed gas of hydrogen (H2) gas and oxygen (O2) or oxygen-containing gas supplied to a processing chamber to form a plasma discharge, and processing the starting substrate by the mixed plasma; and a step of generating hydrogen plasma by causing hydrogen (H2) gas supplied to the processing chamber to form a plasma discharge, and processing the substrate by the hydrogen plasma.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: January 12, 2016
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Tatsushi Ueda, Tadashi Terasaki, Unryu Ogawa, Akito Hirano
  • Publication number: 20150089924
    Abstract: An exhaust gas processing system includes a cylindrical tube through which an exhaust gas of an engine passes, a sensor configured to detect information regarding the exhaust gas discharged from the engine, a coil antenna provided on an outer periphery of the cylindrical tube and connected to a high-frequency power supply, and a control unit configured to control output power of the high-frequency power supply. The control unit controls output power of the high-frequency power supply based on the information detected by the sensor.
    Type: Application
    Filed: March 14, 2013
    Publication date: April 2, 2015
    Applicant: Hitachi Kokusai Electric Inc.
    Inventors: Unryu Ogawa, Kotaro Takenaga, Katsumi Takahashi
  • Patent number: 8987645
    Abstract: Provided are a substrate processing apparatus and a method of manufacturing a semiconductor device that are capable of uniformly heating a substrate while reducing an increase in substrate temperature to reduce a thermal budget. The substrate processing apparatus includes a process chamber configured to process a substrate; a substrate support unit installed in the process chamber to support the substrate; a microwave supply unit configured to supply a microwave toward a process surface of the substrate supported by the substrate support unit, the microwave supply unit including a microwave radiating unit radiating the microwave supplied from a microwave source to the process chamber while rotating; a partition installed between the microwave supply unit and the substrate support unit; a cooling unit installed at the substrate support unit; and a control unit configured to control at least the substrate support unit, the microwave supply unit and the cooling unit.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: March 24, 2015
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Unryu Ogawa, Masahisa Okuno, Tokunobu Akao, Shinji Yashima, Atsushi Umekawa, Kaichiro Minami
  • Patent number: 8557720
    Abstract: A substrate processing apparatus includes a processing chamber configured to process a substrate having a front surface including a dielectric, a substrate support member provided within the processing chamber to support the substrate, a microwave supplying unit configured to supply a microwave to a front surface side of the substrate supported on the substrate support member; and a conductive substrate cooling unit which is provided at a rear surface side of the substrate supported on the substrate support member and has an opposing surface facing the rear surface of the substrate. A distance between the top of the substrate support member and the opposing surface of the substrate cooling unit corresponds to an odd multiple of ¼ wavelength of the microwave supplied when the substrate is processed.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: October 15, 2013
    Assignee: Hitachi Kokusai Electric, Inc.
    Inventors: Tokunobu Akao, Unryu Ogawa, Masahisa Okuno, Shinji Yashima, Atsushi Umekawa, Kaichiro Minami
  • Patent number: 8486222
    Abstract: A substrate processing apparatus includes a processing chamber configured to process a substrate, a substrate support member provided within the processing chamber to support the substrate, a microwave generator provided outside the processing chamber, a waveguide launch port configured to supply a microwave generated by the microwave generator into the processing chamber, wherein the central position of the waveguide launch port is deviated from the central position of the substrate supported on the substrate support member and the waveguide launch port faces a portion of a front surface of the substrate supported on the substrate support member, and a control unit configured to change a relative position of the substrate support member in a horizontal direction with respect to the waveguide launch port.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: July 16, 2013
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Tokunobu Akao, Unryu Ogawa, Masahisa Okuno, Shinji Yashima, Atsushi Umekawa, Kaichiro Minami
  • Patent number: 8334215
    Abstract: A substrate can be appropriately oxidized, while oxidation of the substrate can be suppressed. The present invention includes a step of generating mixed plasma by causing a mixed gas of hydrogen (H2) gas and oxygen(O2) or oxygen/containing gas supplied to a processing chamber to form a plasma discharge, and processing the starting substrate by the mixed plasma; and a step of generating hydrogen plasma by causing hydrogen (H2) gas supplied to the processing chamber to form a plasma discharge, and processing the substrate by the hydrogen plasma.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: December 18, 2012
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Tatsushi Ueda, Tadashi Terasaki, Unryu Ogawa, Akito Hirano
  • Publication number: 20120129358
    Abstract: Provided are a substrate processing apparatus and a method of manufacturing a semiconductor device that are capable of uniformly heating a substrate while reducing an increase in substrate temperature to reduce a thermal budget. The substrate processing apparatus includes a process chamber configured to process a substrate; a substrate support unit installed in the process chamber to support the substrate; a microwave supply unit configured to supply a microwave toward a process surface of the substrate supported by the substrate support unit, the microwave supply unit including a microwave radiating unit radiating the microwave supplied from a microwave source to the process chamber while rotating; a partition installed between the microwave supply unit and the substrate support unit; a cooling unit installed at the substrate support unit; and a control unit configured to control at least the substrate support unit, the microwave supply unit and the cooling unit.
    Type: Application
    Filed: September 22, 2011
    Publication date: May 24, 2012
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Unryu OGAWA, Masahisa OKUNO, Tokunobu AKAO, Shinji YASHIMA, Atsushi UMEKAWA, Kaichiro MINAMI
  • Publication number: 20120108080
    Abstract: A substrate processing apparatus includes a processing chamber configured to process a substrate, a substrate support member provided within the processing chamber to support the substrate, a microwave generator provided outside the processing chamber, a waveguide launch port configured to supply a microwave generated by the microwave generator into the processing chamber, wherein the central position of the waveguide launch port is deviated from the central position of the substrate supported on the substrate support member and the waveguide launch port faces a portion of a front surface of the substrate supported on the substrate support member, and a control unit configured to change a relative position of the substrate support member in a horizontal direction with respect to the waveguide launch port.
    Type: Application
    Filed: September 22, 2011
    Publication date: May 3, 2012
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Tokunobu AKAO, Unryu OGAWA, Masahisa OKUNO, Shinji YASHIMA, Atsushi UMEKAWA, Kaichiro MINAMI
  • Publication number: 20120108061
    Abstract: A substrate processing apparatus includes a processing chamber configured to process a substrate having a front surface including a dielectric, a substrate support member provided within the processing chamber to support the substrate, a microwave supplying unit configured to supply a microwave to a front surface side of the substrate supported on the substrate support member; and a conductive substrate cooling unit which is provided at a rear surface side of the substrate supported on the substrate support member and has an opposing surface facing the rear surface of the substrate. A distance between the top of the substrate support member and the opposing surface of the substrate cooling unit corresponds to an odd multiple of ¼ wavelength of the microwave supplied when the substrate is processed.
    Type: Application
    Filed: September 23, 2011
    Publication date: May 3, 2012
    Applicant: HITACHI KOKUSAI ELECTRIC, INC
    Inventors: Tokunobu AKAO, Unryu OGAWA, Masahisa OKUNO, Shinji YASHIMA, Atsushi UMEKAWA, Kaichiro MINAMI
  • Patent number: 8066894
    Abstract: A substrate can be appropriately oxidized, while oxidation of the substrate can be suppressed. The present invention includes a step of generating mixed plasma by causing a mixed gas of hydrogen (H2) gas and oxygen (O2) or oxygen-containing gas supplied to a processing chamber to form a plasma discharge, and processing the starting substrate by the mixed plasma; and a step of generating hydrogen plasma by causing hydrogen (H2) gas supplied to the processing chamber to form a plasma discharge, and processing the substrate by the hydrogen plasma.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: November 29, 2011
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Tatsushi Ueda, Tadashi Terasaki, Unryu Ogawa, Akito Hirano
  • Patent number: 7795156
    Abstract: Disclosed is a producing method of a semiconductor device comprising a step of forming a tunnel insulating film of a flash device comprising a first nitridation step of forming a first silicon oxynitride film by nitriding a silicon oxide film formed on a semiconductor silicon base by one of plasma nitridation and thermal nitridation, the plasma nitridation carrying out nitridation process by using a gas activated by plasma discharging a first gas including a first compound which has at least a nitrogen atom in a chemical formula thereof, and the thermal nitridation carrying out nitridation process using heat by using a second gas including a second compound which has at least a nitrogen atom in a chemical formula thereof, and a second nitridation step of forming a second silicon oxynitride film by nitriding the first silicon oxynitride film by the other of the plasma nitridation and the thermal nitridation.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: September 14, 2010
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Tadashi Terasaki, Akito Hirano, Masanori Nakayama, Unryu Ogawa
  • Publication number: 20090169768
    Abstract: A substrate can be appropriately oxidized, while oxidation of the substrate can be suppressed. The present invention includes a step of generating mixed plasma by causing a mixed gas of hydrogen (H2) gas and oxygen (O2) or oxygen-containing gas supplied to a processing chamber to form a plasma discharge, and processing the starting substrate by the mixed plasma; and a step of generating hydrogen plasma by causing hydrogen (H2) gas supplied to the processing chamber to form a plasma discharge, and processing the substrate by the hydrogen plasma.
    Type: Application
    Filed: February 4, 2009
    Publication date: July 2, 2009
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Tatsushi Ueda, Tadashi Terasaki, Unryu Ogawa, Akito Hirano
  • Publication number: 20090050056
    Abstract: A substrate processing apparatus and a substrate manufacturing method using the substrate processing apparatus which manufactures, with a high production efficiency, a semiconductor having superior electric characteristics in the nitridation process of a gate insulating film are disclosed. The substrate processing apparatus for the substrate manufacturing method includes a processing chamber which processes the substrate, a processing chamber which generates the plasma, a heating unit which heats the substrate, a gas supply source, and a control unit which executes a first process which converts a nitrogen-containing gas supplied to the processing chamber into the plasma by the processing chamber and heats the substrate by the heating unit, and a second process which stops the plasma generation and heating the substrate further at the temperature of not lower than 450° C. by the heating unit.
    Type: Application
    Filed: March 27, 2008
    Publication date: February 26, 2009
    Inventors: Unryu OGAWA, Katsuhiko YAMAMOTO, Masanori NAKAYAMA