Patents by Inventor Kazuhiro Morimitsu

Kazuhiro Morimitsu 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: 20110253049
    Abstract: There is provided a semiconductor processing apparatus comprising a processing tube for housing a substrate support member that supports a plurality of substrates stacked at a prescribed pitch in a vertical direction; a gas supply part that extends in a direction in which the substrates are stacked in the processing tube and that has a plurality of gas supply openings; an exhaust part that opens onto the processing tube; a gas rectifying plate that is disposed in a space between a penumbra of the substrates supported on the substrate support member and an inner wall of the processing tube, and that extends from the gas supply part in a circumferential direction of the processing tube and in the direction in which the substrates are stacked; and a gas flow regulating part disposed in a space in the processing tube that is above a top-most gas supply opening and a top-most substrate and in a space in the processing tube that is below a bottom-most substrate and a bottom-most gas supply opening.
    Type: Application
    Filed: April 18, 2011
    Publication date: October 20, 2011
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Masanao Fukuda, Kazuhiro Morimitsu
  • Publication number: 20110210118
    Abstract: There are provided a substrate processing apparatus and a method of manufacturing a substrate in which induction heating of members made of a metal material and installed outside an induction coil is suppressed and safety may be improved during processing of a substrate. The substrate processing apparatus includes: a reaction tube for accommodating a substrate; an induction heating unit installed to surround an outer circumference of the reaction tube; a shielding unit installed to surround an outside of the induction heating unit; a gas supply unit for supplying at least a source gas into the reaction tube; and a controller for processing the substrate by heating an inside of the reaction tube using the induction heating unit, and supplying at least the source gas from the gas supply unit into the reaction tube.
    Type: Application
    Filed: February 24, 2011
    Publication date: September 1, 2011
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yukitomo HIROCHI, Akinori TANAKA, Akihiro SATO, Takeshi ITOH, Daisuke HARA, Kenji SHIRAKO, Kazuhiro MORIMITSU, Masanao FUKUDA
  • Publication number: 20100282166
    Abstract: Provided is a heat treatment apparatus. The heat treatment apparatus comprises a process chamber configured to grow silicon carbide (SiC) epitaxial films on SiC substrates, a substrate holding tool configured to hold a plurality of substrates in a state where the substrates are vertically arranged and approximately horizontally oriented, so as to hold the substrates in the process chamber, a first reaction gas supply nozzle configured to supply a carbon-containing gas into the process chamber, a second reaction gas supply nozzle configured to supply a silicon-containing gas into the process chamber, a magnetic field generating coil disposed at an outside of the process chamber for electromagnetic induction heating, and a coil supporter configured to support the magnetic field generating coil. An upper end of the second reaction gas supply nozzle is lower than a lower end of the coil supporter configured to support the magnetic field generating coil.
    Type: Application
    Filed: May 5, 2010
    Publication date: November 11, 2010
    Applicant: HITACHI-KOKUSAI ELECTRIC INC.
    Inventors: Masanao FUKUDA, Akihiro SATO, Akinori TANAKA, Kazuhiro MORIMITSU
  • Publication number: 20100275848
    Abstract: Provided is a heat treatment apparatus that can form films having a uniform thickness on a plurality of substrates. The heat treatment apparatus comprises a process chamber configured to grow silicon carbide (SiC) films on wafers, a boat configured to hold a plurality of wafers in a state where the wafers are vertically arranged and approximately horizontally oriented so as to hold the wafers in the process chamber, a heating unit installed in the processing chamber, and a gas supply nozzle configured to supply a reaction gas. The heating unit comprises a susceptor configured to cover at least a part of the boat, and a susceptor wall disposed between the boat and the susceptor.
    Type: Application
    Filed: April 27, 2010
    Publication date: November 4, 2010
    Applicant: HITACHI-KOKUSAI ELECTRIC INC.
    Inventors: Masanao Fukuda, Kenji Shirako, Akihiro Sato, Kazuhiro Morimitsu, Sadao Nakashima
  • Publication number: 20090029561
    Abstract: There is provided a semiconductor processing apparatus comprising a processing tube for housing a substrate support member that supports a plurality of substrates stacked at a prescribed pitch in a vertical direction; a gas supply part that extends in a direction in which the substrates are stacked in the processing tube and that has a plurality of gas supply openings; an exhaust part that opens onto the processing tube; a gas rectifying plate that is disposed in a space between a penumbra of the substrates supported on the substrate support member and an inner wall of the processing tube, and that extends from the gas supply part in a circumferential direction of the processing tube and in the direction in which the substrates are stacked; and a gas flow regulating part disposed in a space in the processing tube that is above a top-most gas supply opening and a top-most substrate and in a space in the processing tube that is below a bottom-most substrate and a bottom-most gas supply opening.
    Type: Application
    Filed: July 16, 2008
    Publication date: January 29, 2009
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Masanao Fukuda, Kazuhiro Morimitsu, Takafumi Sasaki
  • Patent number: 7455734
    Abstract: A nonuniform portion of a film thickness on a substrate owing to effects of a support column, a substrate mounting portion, and the like which constitute a substrate holder is eliminated, and uniformity of the film thickness of the substrate is enhanced. A substrate processing apparatus houses plural wafers (substrates) held on a boat (substrate holder) in a processing chamber, supplying processing gas to the heated processing chamber, thereby performing film-forming processing for the wafers. The boat includes: at least three support columns 15 provided substantially vertically; plural wafer support portions 16 (substrate mounting portions) which are provided at multi-stages on the support columns and mount the plural wafers substantially horizontally at a predetermined interval; and plural ring-like plates 13 arranged on the support columns 15, and provided substantially horizontally at a predetermined interval with respect to the wafers supported on the wafer support portions 16.
    Type: Grant
    Filed: November 29, 2004
    Date of Patent: November 25, 2008
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Takatomo Yamaguchi, Kazuhiro Morimitsu
  • Patent number: 7198447
    Abstract: A semiconductor device producing apparatus is disclosed. The apparatus includes a carrier-holding stage for placing a carrier; first, second and third stages each for holding first and second boats one at a time, each boat holding one or more substrates; a boat transfer mechanism for transferring the boats among the first, second and third stages; and a substrate transfer mechanism for transferring the substrate(s) from the carrier to the boat held by the first stage. A controller controls the first stage, the boat transfer mechanism and the substrate transfer mechanism so that the boat transfer mechanism transfers one of the boats from the second stage to the first stage, the substrate transfer mechanism then transfers the substrate(s) from the carrier to the boat held by the first stage, and the first stage then moves the boat into the processing chamber for processing.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: April 3, 2007
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Kazuhiro Morimitsu, Tatsuhisa Matsunaga, Masanori Kaneko, Kouichi Noto, Hidehiro Yanagawa, Masaki Matsushima
  • Publication number: 20070007646
    Abstract: A nonuniform portion of a film thickness on a substrate owing to effects of a support column, a substrate mounting portion, and the like which constitute a substrate holder is eliminated, and uniformity of the film thickness of the substrate is enhanced. A substrate processing apparatus houses plural wafers (substrates) held on a boat (substrate holder) in a processing chamber, supplying processing gas to the heated processing chamber, thereby performing film-forming processing for the wafers. The boat includes: at least three support columns 15 provided substantially vertically; plural wafer support portions 16 (substrate mounting portions) which are provided at multi-stages on the support columns and mount the plural wafers substantially horizontally at a predetermined interval; and plural ring-like plates 13 arranged on the support columns 15, and provided substantially horizontally at a predetermined interval with respect to the wafers supported on the wafer support portions 16.
    Type: Application
    Filed: November 29, 2004
    Publication date: January 11, 2007
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Takatomo Yamaguchi, Kazuhiro Morimitsu
  • Patent number: 6737613
    Abstract: A heat treatment apparatus includes a vertically disposed process tube defining a reaction chamber therein; a main heater for heating the reaction chamber, the main heater being disposed outside of the process tube; a boat for holding a plurality of wafers, the boat being loaded into and unloaded from the reaction chamber; and a boat rotating device for rotating the boat. The boat rotating device is provided with a rotatable hollow shaft assembly and a fixed shaft coaxially disposed inside the rotatable hollow shaft assembly. A sub-heater is attached to an upper end of the fixed shaft, and the boat and an insulating portion are disposed on the rotatable hollow shaft assembly.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: May 18, 2004
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Takatomo Yamaguchi, Kazuhiro Morimitsu, Tatsuhisa Matsunaga
  • Publication number: 20030183614
    Abstract: A heat treatment apparatus includes a vertically disposed process tube defining a reaction chamber therein; a main heater for heating the reaction chamber, the main heater being disposed outside of the process tube; a boat for holding a plurality of wafers, the boat being loaded into and unloaded from the reaction chamber; and a boat rotating device for rotating the boat. The boat rotating device is provided with a rotatable hollow shaft assembly and a fixed shaft coaxially disposed inside the rotatable hollow shaft assembly. A sub-heater is attached to an upper end of the fixed shaft, and the boat and an insulating portion are disposed on the rotatable hollow shaft assembly.
    Type: Application
    Filed: March 25, 2003
    Publication date: October 2, 2003
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Takatomo Yamaguchi, Kazuhiro Morimitsu, Tatsuhisa Matsunaga
  • Publication number: 20020012581
    Abstract: In a CVD apparatus in which a first boat and a second boat are used, the boat detection unit and the boat identifying detection unit of the boat detection device of boat identification means are installed on a waiting plate on which a transfer process is performed by the substrate transfer device with one boat mounted thereon. Two detected bodies corresponding to the boat detection unit and the boat identifying detection unit are projected on the first boat 21A and only one detected body corresponding to the boat detection unit is projected on the second boat. If two detected bodies are detected, the boat detection device determines the boat to be the first boat and, if only one detected body is detected, the boat detection device determines the boat to be the second boat.
    Type: Application
    Filed: July 26, 2001
    Publication date: January 31, 2002
    Applicant: Hitachi Kokusai Electric Inc.
    Inventors: Shigeru Odake, Kazuhiro Morimitsu, Hidehiro Yanagawa