Patents by Inventor Norikazu Mizuno

Norikazu Mizuno 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: 20090035951
    Abstract: Provided is a manufacturing method of a semiconductor device composed of a step of carrying-in a wafer into a processing chamber; a step of forming an HfO2 film on the wafer by alternately supplying TEMAH and O3, under heating, into the processing chamber; and a step of carrying-out the wafer from the inside of the processing chamber, wherein in the step of forming the HfO2 film, heating temperature of TEMAH and heating temperature of O3 are set to be different.
    Type: Application
    Filed: July 11, 2008
    Publication date: February 5, 2009
    Inventors: Hironobu Miya, Masanori Sakai, Norikazu Mizuno, Tsutomu Kato, Yuji Takebayashi
  • Patent number: 7432215
    Abstract: A semiconductor device manufacturing method comprises a first step of forming, by a thermal chemical vapor deposition method, a silicon nitride film on an object disposed in a reaction container, with bis tertiary butyl amino silane and NH3 flowing into the reaction container, and a second step of removing silicon nitride formed in the reaction container, with NF3 gas flowing into the reaction container.
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: October 7, 2008
    Assignee: Kokusai Electric Co., Ltd.
    Inventors: Norikazu Mizuno, Kiyohiko Maeda
  • Publication number: 20080166886
    Abstract: There is provided a substrate processing apparatus, comprising: a processing chamber that houses a plurality of substrates in a state of being stacked; a heating member that heats the substrate and an atmosphere in the processing chamber; a first gas supply member that supplies a source gas that thermally-decomposes; a second gas supply member that supplies oxidative gas; an exhaust member that exhausts the atmosphere in the processing chamber; and a controller that controls at least the first gas supply member, the second gas supply member, and the exhaust member.
    Type: Application
    Filed: September 18, 2007
    Publication date: July 10, 2008
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Masanori Sakai, Norikazu Mizuno, Shinya Sasaki, Hirohisa Yamazaki
  • Publication number: 20080166882
    Abstract: A substrate treating apparatus is provided with a treatment chamber, a holding member, a heating member, and supplying members for alternately supplying the treatment chamber with first and second reacting substances. The apparatus is provided for forming a thin film on a substrate by supplying the first reacting substance to have the first reacting substance adsorbed on the substrate, removing the excess first reacting substance, then, supplying the second reacting substance to have it adsorbed on the substrate, and reacting it with the first reacting substance. The apparatus is provided with a control part for permitting the apparatus to perform the thin film forming treatment in a status where the number of product substrates lacks, in the case where the number of sheets of the product substrates held by the holding member is less than the maximum number of the product substrates that can be held by the holding member.
    Type: Application
    Filed: October 5, 2005
    Publication date: July 10, 2008
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Hironobu Miya, Taketoshi Sato, Norikazu Mizuno, Masanori Sakai, Takaaki Noda
  • Publication number: 20080132084
    Abstract: To improve a step coverage and a loading effect, without inviting a deterioration of throughput and an increase of cost, in a method for forming a thin film by alternately flowing a raw material and alcohol to a processing chamber.
    Type: Application
    Filed: November 7, 2007
    Publication date: June 5, 2008
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Hironobu Miya, Norikazu Mizuno, Masanori Sakai, Shinya Sasaki, Hirohisa Yamazaki
  • Publication number: 20080124945
    Abstract: Disclosed is a producing method of a semiconductor device comprising a first step of supplying a first reactant to a substrate to cause a ligand-exchange reaction between a ligand of the first reactant and a ligand as a reactive site existing on a surface of the substrate, a second step of removing a surplus of the first reactant, a third step of supplying a second reactant to the substrate to cause a ligand-exchange reaction to change the ligand after the exchange in the first step into a reactive site, a fourth step of removing a surplus of the second reactant, and a fifth step of supplying a plasma-excited third reactant to the substrate to cause a ligand-exchange reaction to exchange a ligand which has not been exchange-reacted into the reactive site in the third step into the reactive site, wherein the first to fifth steps are repeated predetermined times.
    Type: Application
    Filed: February 15, 2006
    Publication date: May 29, 2008
    Applicant: Hitachi Kokusa Electric Inc.
    Inventors: Hironobu Miya, Kazuyuki Toyoda, Norikazu Mizuno, Taketoshi Sato, Masanori Sakai, Masayuki Asai, Kazuyuki Okuda, Hideki Horita
  • Publication number: 20070292974
    Abstract: Disclosed is a substrate processing method in which a plurality of processing gases are alternately supplied to and exhausted from a processing chamber forming a space in which a substrate or substrates are to be processed to form a desired thin film on the substrate or each of the substrates comprising transferring the substrate or the substrates into the processing chamber, and controlling a supply time of one of the plurality of the processing gases to control an amount of a chemical species which exists in the thin film and the existing amount of which a film stress depends on, thereby controlling the film stress of the thin film.
    Type: Application
    Filed: January 27, 2006
    Publication date: December 20, 2007
    Applicant: Hitachi Kokusai Electric Inc
    Inventors: Norikazu Mizuno, Taketoshi Sato, Masanori Sakai, Kazuyuki Okuda
  • Publication number: 20070238292
    Abstract: A semiconductor device manufacturing method comprises a first step of forming, by a thermal chemical vapor deposition method, a silicon nitride film on an object disposed in a reaction container, with bis tertiary butyl amino silane and NH3 flowing into the reaction container, and a second step of removing silicon nitride formed in the reaction container, with NF3 gas flowing into the reaction container.
    Type: Application
    Filed: June 12, 2007
    Publication date: October 11, 2007
    Applicant: KOKUSAI ELECTRIC CO., LTD.
    Inventors: Norikazu MIZUNO, Kiyohiko MAEDA
  • Publication number: 20060260544
    Abstract: A substrate processor enables realization of a proper process by combining advantages of a remote plasma and a plasma generated in an entire processing chamber. The substrate processor includes a conductive member (10) which is installed surrounding a processing space (1) and grounded to the earth and a pair of electrodes (4) installed inside the conductive member (10). A primary coil of an insularing transformer (7) is connected to a high-frequency power supply unit (14) and a secondary coil is connected to the electrodes (4). A switch (13) is connected to the connection line connecting the secondary coil to the electrodes (4). By setting up/cutting off the connection of the line to the earth with use of the switch (13), the region where the plasma is generated in the processing space (1) can be changed.
    Type: Application
    Filed: March 4, 2004
    Publication date: November 23, 2006
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Kazuyuki Toyoda, Nobuhito Shima, Nobuo Ishimaru, Yoshikazu Konno, Motonari Takebayashi, Takaaki Noda, Norikazu Mizuno
  • Publication number: 20060121746
    Abstract: A semiconductor device manufacturing method comprises a first step of forming, by a thermal chemical vapor deposition method, a silicon nitride film on an object disposed in a reaction container, with bis tertiary butyl amino silane and NH3 flowing into the reaction container, and a second step of removing silicon nitride formed in the reaction container, with NF3 gas flowing into the reaction container.
    Type: Application
    Filed: January 11, 2006
    Publication date: June 8, 2006
    Inventors: Norikazu Mizuno, Kiyohiko Maeda
  • Patent number: 6790793
    Abstract: In a method for manufacturing a semiconductor device, the following three steps (oxide film forming step, cycle purge step, and coating step) are performed sequentially before performing substrates processing with a semiconductor device manufacturing apparatus. In the oxide film forming step, an oxide film 28 is grown on the surfaces of a flange portion 27 and a cap portion 30 which compose metal parts of a furnace port by baking the furnace port 40 so that corrosion resistance is improved. In the cycle purge step, residual moisture on the part of a gas supply system 35 and inside the piping is removed to suppress a chemical reaction between DCS gas which increases corrosiveness by reaction with moisture, and the metal parts 41 of the furnace port.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: September 14, 2004
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Yutaka Nishino, Kenichi Suzaki, Norikazu Mizuno
  • Patent number: 6720274
    Abstract: A semiconductor device fabricating method includes the steps of loading one or more substrates into a boat disposed in a waiting room positioned next to a reaction furnace; vacuum-evacuating the waiting room to a vacuum state at a base pressure; loading the boat into the reaction furnace at a first ambient pressure; and recovering a temperature of the reaction furnace at a second ambient pressure. The first or the second ambient pressure is greater than the vacuum state but less than the atmospheric pressure. Further, the method includes the step of increasing the temperature of the one or more substrates at a third ambient pressure, and also the third ambient pressure is greater than the base pressure but less than the atmospheric pressure.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: April 13, 2004
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Takashi Ozaki, Kenichi Suzaki, Norikazu Mizuno
  • Patent number: 6716772
    Abstract: A semiconductor device manufacturing apparatus which forms silicon nitride films on a plurality of substrates by thermal chemical vapor deposition. The semiconductor device manufacturing apparatus includes a vertical reaction tube, a substrate holder, and gas supplies. The vertical reaction tube has an inner wall. The substrate holder is for holding the plurality of substrates in the vertical reaction tube with the plurality of substrates being vertically stacked with a distance “a” between adjacent substrates of the plurality of substrates and a distance “b” between edges of the plurality of substrates and the inner wall of the vertical reaction tube being maintained substantially equal to each other.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: April 6, 2004
    Assignee: Kokusai Electric Co., Ltd.
    Inventors: Norikazu Mizuno, Kiyohiko Maeda
  • Publication number: 20030224615
    Abstract: In a method for manufacturing a semiconductor device, the following three steps (oxide film forming step, cycle purge step, and coating step) are performed sequentially before performing substrates processing with a semiconductor device manufacturing apparatus. In the oxide film forming step, an oxide film 28 is grown on the surfaces of a flange portion 27 and a cap portion 30 which compose metal parts of a furnace port by baking the furnace port 40 so that corrosion resistance is improved. In the cycle purge step, residual moisture on the part of a gas supply system 35 and inside the piping is removed to suppress a chemical reaction between DCS gas which increases corrosiveness by reaction with moisture, and the metal parts 41 of the furnace port.
    Type: Application
    Filed: February 28, 2003
    Publication date: December 4, 2003
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yutaka Nishino, Kenichi Suzaki, Norikazu Mizuno
  • Publication number: 20030092283
    Abstract: A semiconductor device fabricating method includes the steps of loading one or more substrates into a boat disposed in a waiting room positioned next to a reaction furnace; vacuum-evacuating the waiting room to a vacuum state at a base pressure; loading the boat into the reaction furnace at a first ambient pressure; and recovering a temperature of the reaction furnace at a second ambient pressure. The first or the second ambient pressure is greater than the vacuum state but less than the atmospheric pressure. Further, the method includes the step of increasing the temperature of the one or more substrates at a third ambient pressure, and also the third ambient pressure is greater than the base pressure but less than the atmospheric pressure.
    Type: Application
    Filed: November 12, 2002
    Publication date: May 15, 2003
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Takashi Ozaki, Kenichi Suzaki, Norikazu Mizuno
  • Publication number: 20020197890
    Abstract: A semiconductor device manufacturing method comprises a step of forming, by thermal chemical vapor deposition method, silicon nitride films on a plurality of substrates stacked in a reaction tube, with bis tertiary butyl amino silane and NH3 flowing into the reaction tube accommodating the stacked substrates, wherein the silicon nitride films are formed on the substrates in a state in which a distance “a” between adjacent the substrates and a distance “b” between edges of the substrates and an inner wall of the reaction tube are maintained substantially equal to each other.
    Type: Application
    Filed: August 20, 2002
    Publication date: December 26, 2002
    Applicant: KOKUSAI ELECTRIC CO., LTD.
    Inventors: Norikazu Mizuno, Kiyohiko Maeda
  • Patent number: 6486083
    Abstract: A semiconductor device manufacturing method including a step of forming, by thermal chemical vapor deposition, silicon nitride films on a plurality of substrates vertically stacked in a vertical reaction tube having an inner wall. Bis tertiary butyl amino silane and NH3 flows into the vertical reaction tube and flows vertically from one end of the plurality of substrates to an opposing end of the plurality of substrates without flowing into the vertical reaction tube through the inner wall at a height between the one end and the opposing end of the plurality of substrates. The silicon nitride films are formed on the plurality of substrates in a state in which a distance “a” between adjacent substrates of the plurality of substrates and a distance “b” between edges of the plurality of substrates and the inner wall of the vertical reaction tube are maintained substantially equal to each other.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: November 26, 2002
    Assignee: Kokusai Electric Co., Ltd.
    Inventors: Norikazu Mizuno, Kiyohiko Maeda