Patents by Inventor Tadashi Terasaki

Tadashi Terasaki 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: 11905596
    Abstract: A substrate processing apparatus comprising: a substrate process chamber having a plasma generation space where a processing gas is plasma-excited and a substrate processing space communicating with the plasma generation space; a substrate mounting table installed inside the substrate processing space and for mounting a substrate; an inductive coupling structure provided with a coil installed to be wound around an outer periphery of the plasma generation space; a substrate support table elevating part for raising and lowering the substrate mounting table; a gas supply part for supplying the processing gas to the plasma generation space; and a controller for controlling the substrate support table elevating part, based on a power value of a high-frequency power supplied to the coil, so that the substrate mounted on the substrate mounting table is positioned at a target height according to the power value and spaced apart from a lower end of the coil.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: February 20, 2024
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventors: Teruo Yoshino, Takeshi Yasui, Masaki Murobayashi, Koichiro Harada, Tadashi Terasaki, Masanori Nakayama
  • Publication number: 20220010433
    Abstract: A substrate processing apparatus comprising: a substrate process chamber having a plasma generation space where a processing gas is plasma-excited and a substrate processing space communicating with the plasma generation space; a substrate mounting table installed inside the substrate processing space and for mounting a substrate; an inductive coupling structure provided with a coil installed to be wound around an outer periphery of the plasma generation space; a substrate support table elevating part for raising and lowering the substrate mounting table; a gas supply part for supplying the processing gas to the plasma generation space; and a controller for controlling the substrate support table elevating part, based on a power value of a high-frequency power supplied to the coil, so that the substrate mounted on the substrate mounting table is positioned at a target height according to the power value and spaced apart from a lower end of the coil.
    Type: Application
    Filed: September 24, 2021
    Publication date: January 13, 2022
    Applicant: KOKUSAI ELECTRIC CORPORATION
    Inventors: Teruo YOSHINO, Takeshi YASUI, Masaki MUROBAYASHI, Koichiro HARADA, Tadashi TERASAKI, Masanori NAKAYAMA
  • Patent number: 11155922
    Abstract: A method of manufacturing a semiconductor device includes: loading a substrate into a substrate process chamber having a plasma generation space in which a processing gas is plasma-excited and a substrate process space communicating with the plasma generation space; mounting the substrate on a substrate mounting table installed inside the substrate process space; adjusting a height of the substrate mounting table so that the substrate is located at a height lower than a lower end of a coil, the coil configured to wind around an outer periphery of the plasma generation space so as to have a diameter larger than a diameter of the substrate; supplying the processing gas to the plasma generation space; plasma-exciting the processing gas supplied to the plasma generation space by supplying a high-frequency power to the coil to resonate the coil; and processing the substrate mounted on the substrate mounting table by the plasma-excitation.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: October 26, 2021
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventors: Teruo Yoshino, Takeshi Yasui, Masaki Murobayashi, Koichiro Harada, Tadashi Terasaki, Masanori Nakayama
  • Publication number: 20210305045
    Abstract: Described herein is a technique capable of capable of improving characteristics of an oxide film formed on a substrate in a process of modifying the oxide film. According to one aspect of the technique, there is provided a method of manufacturing a semiconductor device, including: modifying an oxide film formed on a substrate by performing: (a) supplying a reactive species containing an element of a rare gas generated by converting a gas containing the rare gas into a plasma state to the oxide film; and (b) after (a), supplying a reactive species containing oxygen generated by converting an oxygen-containing gas different from the gas containing the rare gas into a plasma state to the oxide film.
    Type: Application
    Filed: March 18, 2021
    Publication date: September 30, 2021
    Inventors: Tatsushi UEDA, Tadashi TERASAKI, Masanori NAKAYAMA, Yasutoshi TSUBOTA, Yuki YAMAKADO, Hiroki KISHIMOTO
  • Publication number: 20190032217
    Abstract: A method of manufacturing a semiconductor device includes: loading a substrate into a substrate process chamber having a plasma generation space in which a processing gas is plasma-excited and a substrate process space communicating with the plasma generation space; mounting the substrate on a substrate mounting table installed inside the substrate process space; adjusting a height of the substrate mounting table so that the substrate is located at a height lower than a lower end of a coil, the coil configured to wind around an outer periphery of the plasma generation space so as to have a diameter larger than a diameter of the substrate; supplying the processing gas to the plasma generation space; plasma-exciting the processing gas supplied to the plasma generation space by supplying a high-frequency power to the coil to resonate the coil; and processing the substrate mounted on the substrate mounting table by the plasma-excitation.
    Type: Application
    Filed: September 20, 2018
    Publication date: January 31, 2019
    Applicant: KOKUSAI ELECTRIC CORPORATION
    Inventors: Teruo YOSHINO, Takeshi YASUI, Masaki MUROBAYASHI, Koichiro HARADA, Tadashi TERASAKI, Masanori NAKAYAMA
  • 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: 9978653
    Abstract: A method of manufacturing a semiconductor device includes: processing a substrate by operating a processing apparatus included in a substrate processing apparatus, based on a first process setting; acquiring apparatus data of the processing apparatus when processing the substrate; generating first evaluation data of the processing apparatus based on an evaluation factor corresponding to the first process setting and the apparatus data; determining one or more recipe items executable in the processing apparatus based on the first evaluation data; and notifying the one or more recipe items.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: May 22, 2018
    Assignee: HITACHI KOKUSAI ELECTRIC, INC.
    Inventors: Masanori Nakayama, Tadashi Terasaki
  • Publication number: 20180090310
    Abstract: Disclosed is a method of manufacturing a semiconductor device. The method includes: (a) accommodating a substrate having a plurality of carbon-containing films protruding from a surface of the substrate; (b) forming a silicon-containing film on a surface of the plurality of carbon-containing films and a surface of the substrate by supplying a silicon-containing gas to the substrate; (c) forming a silicon/oxygen-containing film by supplying a first plasma of an oxygen-containing gas to the substrate; and (d) forming a silicon oxide film by supplying a second plasma of the oxygen-containing gas to the substrate after performing (c).
    Type: Application
    Filed: December 22, 2016
    Publication date: March 29, 2018
    Inventors: Satoshi SHIMAMOTO, Teruo YOSHINO, Tadashi TERASAKI, Masanori NAKAYAMA
  • Publication number: 20180090397
    Abstract: A method of manufacturing a semiconductor device includes: processing a substrate by operating a processing apparatus included in a substrate processing apparatus, based on a first process setting; acquiring apparatus data of the processing apparatus when processing the substrate; generating first evaluation data of the processing apparatus based on an evaluation factor corresponding to the first process setting and the apparatus data; determining one or more recipe items executable in the processing apparatus based on the first evaluation data; and notifying the one or more recipe items.
    Type: Application
    Filed: December 23, 2016
    Publication date: March 29, 2018
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Masanori NAKAYAMA, Tadashi TERASAKI
  • Patent number: 9929005
    Abstract: Disclosed is a method of manufacturing a semiconductor device. The method includes: (a) accommodating a substrate having a plurality of carbon-containing films protruding from a surface of the substrate; (b) forming a silicon-containing film on a surface of the plurality of carbon-containing films and a surface of the substrate by supplying a silicon-containing gas to the substrate; (c) forming a silicon/oxygen-containing film by supplying a first plasma of an oxygen-containing gas to the substrate; and (d) forming a silicon oxide film by supplying a second plasma of the oxygen-containing gas to the substrate after performing (c).
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: March 27, 2018
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Satoshi Shimamoto, Teruo Yoshino, Tadashi Terasaki, Masanori Nakayama
  • 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
  • Patent number: 9059229
    Abstract: A substrate processing apparatus includes a substrate processing chamber including a plasma generation space where a plasma is generated and a substrate processing space where a substrate is placed during a substrate process; an inductive coupling structure outside the plasma generation space wherein a sum of electrical lengths of a coil of the inductive coupling structure and a waveform adjustment circuit connected to the coil is an integer multiple of a wavelength of an applied power; a substrate mounting table in the substrate processing space and supporting the substrate including grooves having high aspect ratios with a silicon-containing layer disposed thereon; a substrate transfer port at a wall of the substrate processing chamber; a substrate mounting table elevator moving the substrate mounting table upward/downward; an oxygen gas supply system to supply an oxygen-containing gas into the plasma generation space; and an exhaust unit exhausting gas from the substrate processing chamber.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: June 16, 2015
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Tadashi Terasaki, Masanori Nakayama, Mitsunori Takeshita, Katsunori Funaki
  • Publication number: 20140106573
    Abstract: A substrate processing apparatus includes a substrate processing chamber including a plasma generation space where a plasma is generated and a substrate processing space where a substrate is placed during a substrate process; an inductive coupling structure outside the plasma generation space wherein a sum of electrical lengths of a coil of the inductive coupling structure and a waveform adjustment circuit connected to the coil is an integer multiple of a wavelength of an applied power; a substrate mounting table in the substrate processing space and supporting the substrate including grooves having high aspect ratios with a silicon-containing layer disposed thereon; a substrate transfer port at a wall of the substrate processing chamber; a substrate mounting table elevator moving the substrate mounting table upward/downward; an oxygen gas supply system to supply an oxygen-containing gas into the plasma generation space; and an exhaust unit exhausting gas from the substrate processing chamber.
    Type: Application
    Filed: September 11, 2013
    Publication date: April 17, 2014
    Applicant: Hitachi Kokusai Electric Inc.
    Inventors: Tadashi TERASAKI, Masanori NAKAYAMA, Mitsunori TAKESHITA, Katsunori FUNAKI
  • 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
  • Patent number: 8178445
    Abstract: A manufacturing method for a semiconductor device, that loads a substrate on which a film containing oxygen atoms, chlorine atoms, and metal atoms is formed into a processing chamber so as to be supported by a substrate support part. The substrate is heated by the substrate support part. The inside of the processing chamber is exhausted by a gas exhaust part while supplying nitrogen atoms-containing gas and hydorgen atoms-containing gas into the processing chamber by a gas supply part. A plasma generation part is then used to excite the nitrogen atoms-containing gas and the hydrogen atoms-containing gas supplied into the processing chamber.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: May 15, 2012
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Tadashi Horie, Akito Hirano, Tadashi Terasaki
  • Patent number: 8084315
    Abstract: A technique capable of improving the memory retention characteristics of a non-volatile memory is provided. In particular, a technique of fabricating a non-volatile semiconductor memory device is provided capable of enhancing the film quality of a silicon oxide film even when a silicon oxide film as a first potential barrier film is formed with a plasma oxidation method to improve the memory retention characteristics of the non-volatile memory. After a silicon oxide film, which is a main component of a first potential barrier film, is formed with a plasma oxidation method, plasma nitridation at a high temperature and a heat treatment in an atmosphere containing nitric oxide are performed in combination, thereby forming a silicon oxynitride film on the surface of the silicon oxide film, and segregating nitrogen to an interface between the silicon oxide film and a semiconductor substrate.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: December 27, 2011
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Katsuhiko Yamamoto, Tadashi Terasaki, Yoshiki Yonamoto, Hirotaka Hamamura
  • Patent number: 8071446
    Abstract: A manufacturing method of a semiconductor device, including the steps of: loading into a processing chamber a substrate having a high dielectric gate insulating film and a metal electrode, with a side wall exposed by etching; applying oxidation processing to the substrate by supplying thereto hydrogen-containing gas and oxygen-containing gas excited by plasma, with the substrate heated to a temperature not allowing the high dielectric gate insulating film to be crystallized, in the processing chamber; and unloading the substrate after processing from the processing chamber.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: December 6, 2011
    Assignee: Hitachi Kokusai Electric Inc.
    Inventor: Tadashi Terasaki