Patents by Inventor Naotaka Noro

Naotaka Noro 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: 11721557
    Abstract: The etching method includes a modification process and a removal process. In the modification process, a fluorine containing gas is supplied to an object having a silicon oxide film, so that a modification layer is formed on the surface of the silicon oxide film. In the removal process, the object, on which the modification layer has been formed, is exposed to plasma of a gas that contains ammonia, so that the modification layer is removed from the object. In addition, the modification process and the removal process are alternately repeated a plurality of times.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: August 8, 2023
    Assignee: Tokyo Electron Limited
    Inventors: Tadashi Mitsunari, Naotaka Noro, Tsuyoshi Moriya
  • Patent number: 11450512
    Abstract: A plasma processing method according to an embodiment is performed in a state in which a substrate is placed on a support stage in an internal space of a chamber body. In the plasma processing method, a plasma treatment is performed on the substrate. Subsequently, a phase of a voltage of a lower electrode is relatively adjusted with respect to a phase of a voltage of an upper electrode by a phase adjustment circuit, such that a thickness of a sheath between the support stage and plasma without extinguishing the plasma generated in order to perform the plasma treatment. Thereafter, in a state in which supply of a high-frequency power is stopped, gases and particles in the internal space of the chamber body are discharged using an exhaust device.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: September 20, 2022
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Shinya Iwashita, Takamichi Kikuchi, Naotaka Noro, Toshio Hasegawa, Tsuyoshi Moriya
  • Patent number: 11377739
    Abstract: A film forming apparatus includes: process container to generate vacuum atmosphere; mounting part to mount substrate; heating part to heat the substrate mounted on the mounting part; gas supply part installed at rear side of the substrate mounted on the mounting part and configured to supply film forming gas toward front side of the substrate along surface of the substrate and flow rate of the film forming gas becomes uniform in width direction of flow of the film forming gas; rotation mechanism to rotate the mounting part about axis orthogonal to the substrate when the film forming gas is supplied to the substrate; film thickness adjustment part to adjust film thickness distribution of film on the substrate in flow direction of the film forming gas when viewed in state where the mounting part is stopped; and exhaust port provided at the front side of the substrate.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: July 5, 2022
    Assignee: TOKYO ELECTRON LIMITED
    Inventor: Naotaka Noro
  • Publication number: 20220068637
    Abstract: A film-forming method of forming an oxide film on a substrate inside a chamber, includes: adsorbing a raw material gas for forming the oxide film onto the substrate by supplying the raw material gas into the chamber; and oxidizing the raw material gas adsorbed onto the substrate with oxygen-containing radicals produced by supplying a hydrogen gas and an oxygen gas into the chamber while preheating the hydrogen gas and the oxygen gas, wherein the adsorbing the raw material gas and the oxidizing the raw material gas are repeated, and when supplying at least one of the hydrogen gas and the oxygen gas, a supply partial pressure of the at least one of the hydrogen gas and the oxygen gas is changed to be relatively high at an initial supply stage and to gradually decrease over time.
    Type: Application
    Filed: October 28, 2019
    Publication date: March 3, 2022
    Inventors: Kotaro MIYATANI, Naotaka NORO, Kouji SHIMOMURA, Ryoun SHIMAMOTO, Toshiyuki IKEUCHI, Younggi HONG
  • Publication number: 20210351040
    Abstract: The etching method includes a modification process and a removal process. In the modification process, a fluorine containing gas is supplied to an object having a silicon oxide film, so that a modification layer is formed on the surface of the silicon oxide film. In the removal process, the object, on which the modification layer has been formed, is exposed to plasma of a gas that contains ammonia, so that the modification layer is removed from the object. In addition, the modification process and the removal process are alternately repeated a plurality of times.
    Type: Application
    Filed: September 25, 2019
    Publication date: November 11, 2021
    Inventors: Tadashi MITSUNARI, Naotaka NORO, Tsuyoshi MORIYA
  • Publication number: 20210301402
    Abstract: A film forming apparatus includes: a processing container; a support mechanism configured to support a substrate to be capable of being raised and lowered; a first gas supplier configured to supply a first gas to a front surface of the substrate supported on the support mechanism; a second gas supplier configured to supply a second gas to a rear surface of the substrate supported on the support mechanism; and a third gas supplier configured to supply a third gas to at least one of the front surface and the rear surface of the substrate supported on the support mechanism.
    Type: Application
    Filed: July 29, 2019
    Publication date: September 30, 2021
    Inventors: Yusuke SUZUKI, Tsuyoshi MORIYA, Tadashi MITSUNARI, Shinya IWASHITA, Yoshinori MORISADA, Naotaka NORO, Munehito KAGAYA, Satoshi TANAKA
  • Patent number: 11081322
    Abstract: A film forming apparatus 1 includes a plasma generating mechanism 47 commonly used for plasmarizing a processing gas and a cleaning gas supplied into a processing vessel 11 in which a vacuum atmosphere is formed; an exhaust device 17 configured to evacuate an exhaust line 61 connected to a processing gas discharge unit 43 while the plasmarization of the cleaning gas is being performed by the plasma generating mechanism 47; a tank 62 provided at the exhaust line 61; and a valve V2 which is provided at the exhaust line 61 between the tank 62 and the processing gas discharge unit 43. The valve V2 is configured to be closed to reduce an internal pressure of the tank 62 and opened to attract the plasmarized cleaning gas into the tank 62 from a processing space 40 through the processing gas discharge unit 43.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: August 3, 2021
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Naotaka Noro, Toshio Hasegawa, Tamaki Takeyama, Shinya Iwashita, Katsuhito Hirose
  • Publication number: 20210142982
    Abstract: A plasma processing method according to an embodiment is performed in a state in which a substrate is placed on a support stage in an internal space of a chamber body. In the plasma processing method, a plasma treatment is performed on the substrate. Subsequently, a phase of a voltage of a lower electrode is relatively adjusted with respect to a phase of a voltage of an upper electrode by a phase adjustment circuit, such that a thickness of a sheath between the support stage and plasma without extinguishing the plasma generated in order to perform the plasma treatment. Thereafter, in a state in which supply of a high-frequency power is stopped, gases and particles in the internal space of the chamber body are discharged using an exhaust device.
    Type: Application
    Filed: September 26, 2018
    Publication date: May 13, 2021
    Inventors: Shinya IWASHITA, Takamichi KIKUCHI, Naotaka NORO, Toshio HASEGAWA, Tsuyoshi MORIYA
  • Publication number: 20210017642
    Abstract: A method of forming a RuSi film, the method includes adsorbing silicon in a recess that is formed in a substrate and includes an insulating film by supplying a silicon-containing gas to the substrate, forming a Ru film in the recess by supplying a Ru-containing precursor to the recess in which the silicon is adsorbed, and forming a RuSi film by supplying a silicon-containing gas to the recess in which the Ru film is formed.
    Type: Application
    Filed: July 15, 2020
    Publication date: January 21, 2021
    Inventors: Tadahiro ISHIZAKA, Naotaka NORO
  • Patent number: 10872764
    Abstract: Disclosed is a film forming method including forming a metal oxide film on a base film by alternately supplying a metal-containing gas and a plasmatized oxidizing gas. The metal-containing gas is changed from a first metal-containing gas having no halogen to a second metal-containing gas different from the first metal-containing gas during the film forming of the metal oxide film.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: December 22, 2020
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Shinya Iwashita, Takamichi Kikuchi, Naotaka Noro, Toshio Hasegawa, Tsuyoshi Moriya
  • Patent number: 10811264
    Abstract: There is provided a film-forming method, including: a pre-coating process of supplying a first gas containing silicon into a processing container in which a substrate is not loaded, and coating surfaces of members installed inside the processing container, including a mounting table configured to mount the substrate thereon, with a film made of silicon; subsequently, a mounting process of mounting the substrate on the mounting table so that a back surface of the substrate is in contact with the film made of silicon; and subsequently, a film-forming process of supplying a second gas containing an organometallic compound into the processing container, and forming a film made of a metal constituting the organometallic compound on the substrate.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: October 20, 2020
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Yuichiro Wagatsuma, Miyako Kaneko, Naotaka Noro
  • Publication number: 20200208260
    Abstract: A method of forming a RuSi film includes performing a process a plurality of times, the process including alternately repeating: supplying a Ru(DMBD)(CO)3 gas into a processing container accommodating a substrate; and supplying a hydrogenated silicon gas into the processing container.
    Type: Application
    Filed: December 26, 2019
    Publication date: July 2, 2020
    Inventors: Takamichi KIKUCHI, Naotaka NORO, Toshio HASEGAWA
  • Publication number: 20200056285
    Abstract: A film forming apparatus includes: process container to generate vacuum atmosphere; mounting part to mount substrate; heating part to heat the substrate mounted on the mounting part; gas supply part installed at rear side of the substrate mounted on the mounting part and configured to supply film forming gas toward front side of the substrate along surface of the substrate and flow rate of the film forming gas becomes uniform in width direction of flow of the film forming gas; rotation mechanism to rotate the mounting part about axis orthogonal to the substrate when the film forming gas is supplied to the substrate; film thickness adjustment part to adjust film thickness distribution of film on the substrate in flow direction of the film forming gas when viewed in state where the mounting part is stopped; and exhaust port provided at the front side of the substrate.
    Type: Application
    Filed: October 25, 2019
    Publication date: February 20, 2020
    Inventor: Naotaka NORO
  • Patent number: 10535528
    Abstract: A method for forming a titanium oxide film on a substrate to be processed, which has a silicon portion on a surface thereof, the method including: forming a first titanium oxide film on the surface of the substrate to be processed, which includes the silicon portion, by means of thermal ALD by alternately supplying a titanium-containing gas and a gas containing hydrogen and oxygen serving as an oxidizing agent in a first stage; and forming a second titanium oxide film on the first titanium oxide film by means of plasma ALD by alternately supplying a titanium-containing gas and plasma of an oxygen-containing gas as an oxidizing agent in a second stage.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: January 14, 2020
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Naoki Shindo, Toshio Hasegawa, Naotaka Noro, Miyako Kaneko
  • Patent number: 10519548
    Abstract: A film forming apparatus includes: process container to generate vacuum atmosphere; mounting part to mount substrate; heating part to heat the substrate mounted on the mounting part; gas supply part installed at rear side of the substrate mounted on the mounting part and configured to supply film forming gas toward front side of the substrate along surface of the substrate and flow rate of the film forming gas becomes uniform in width direction of flow of the film forming gas; rotation mechanism to rotate the mounting part about axis orthogonal to the substrate when the film forming gas is supplied to the substrate; film thickness adjustment part to adjust film thickness distribution of film on the substrate in flow direction of the film forming gas when viewed in state where the mounting part is stopped; and exhaust port provided at the front side of the substrate.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: December 31, 2019
    Assignee: TOKYO ELECTRON LIMITED
    Inventor: Naotaka Noro
  • Patent number: 10392698
    Abstract: A metal-containing film can be formed with high continuity with respect to a base when forming the metal-containing film on the base by CVD or ALD. A film forming method of forming, by ALD or CVD, a Ti-containing film on a base film of a processing target object having a SiO2 film as the base film includes performing a surface processing of accelerating formation of a silanol group on a surface of the SiO2 film by bringing a fluid containing O and H into contact with the surface of the SiO2 film; and performing a film forming processing of forming the Ti-containing film on the SiO2 film, on which the surface processing is performed, by the ALD or the CVD with a Ti source gas which reacts with the silanol group.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: August 27, 2019
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Miyako Kaneko, Naotaka Noro, Tsuyoshi Takahashi, Kazuyoshi Yamazaki
  • Publication number: 20190088475
    Abstract: Disclosed is a film forming method including forming a metal oxide film on a base film by alternately supplying a metal-containing gas and a plasmatized oxidizing gas. The metal-containing gas is changed from a first metal-containing gas having no halogen to a second metal-containing gas different from the first metal-containing gas during the film forming of the metal oxide film.
    Type: Application
    Filed: September 17, 2018
    Publication date: March 21, 2019
    Inventors: Shinya Iwashita, Takamichi Kikuchi, Naotaka Noro, Toshio Hasegawa, Tsuyoshi Moriya
  • Publication number: 20190067015
    Abstract: There is provided a film-forming method, including: a pre-coating process of supplying a first gas containing silicon into a processing container in which a substrate is not loaded, and coating surfaces of members installed inside the processing container, including a mounting table configured to mount the substrate thereon, with a film made of silicon; subsequently, a mounting process of mounting the substrate on the mounting table so that a back surface of the substrate is in contact with the film made of silicon; and subsequently, a film-forming process of supplying a second gas containing an organometallic compound into the processing container, and forming a film made of a metal constituting the organometallic compound on the substrate.
    Type: Application
    Filed: August 24, 2018
    Publication date: February 28, 2019
    Inventors: Yuichiro WAGATSUMA, Miyako KANEKO, Naotaka NORO
  • Publication number: 20180108518
    Abstract: A film forming apparatus 1 includes a plasma generating mechanism 47 commonly used for plasmarizing a processing gas and a cleaning gas supplied into a processing vessel 11 in which a vacuum atmosphere is formed; an exhaust device 17 configured to evacuate an exhaust line 61 connected to a processing gas discharge unit 43 while the plasmarization of the cleaning gas is being performed by the plasma generating mechanism 47; a tank 62 provided at the exhaust line 61; and a valve V2 which is provided at the exhaust line 61 between the tank 62 and the processing gas discharge unit 43. The valve V2 is configured to be closed to reduce an internal pressure of the tank 62 and opened to attract the plasmarized cleaning gas into the tank 62 from a processing space 40 through the processing gas discharge unit 43.
    Type: Application
    Filed: October 13, 2017
    Publication date: April 19, 2018
    Inventors: Naotaka Noro, Toshio Hasegawa, Tamaki Takeyama, Shinya Iwashita, Katsuhito Hirose
  • Publication number: 20180108534
    Abstract: A method for forming a titanium oxide film on a substrate to be processed, which has a silicon portion on a surface thereof, the method including: forming a first titanium oxide film on the surface of the substrate to be processed, which includes the silicon portion, by means of thermal ALD by alternately supplying a titanium-containing gas and a gas containing hydrogen and oxygen serving as an oxidizing agent in a first stage; and forming a second titanium oxide film on the first titanium oxide film by means of plasma ALD by alternately supplying a titanium-containing gas and plasma of an oxygen-containing gas as an oxidizing agent in a second stage.
    Type: Application
    Filed: October 11, 2017
    Publication date: April 19, 2018
    Inventors: Naoki SHINDO, Toshio HASEGAWA, Naotaka NORO, Miyako KANEKO