Patents by Inventor Atsutoshi Inokuchi

Atsutoshi Inokuchi 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: 20230386787
    Abstract: A substrate processing method for a substrate processing device includes (a) supplying a process gas with specific conditions to a processing container having therein a stage on which a workpiece having an etching target film and a mask on the etching target film is placed, (b) performing a plasma processing on the workpiece with first plasma generated from the process gas under a first plasma generation condition, (c) performing a plasma processing on the workpiece with second plasma generated from the process gas under a second plasma generation condition that is different from the first plasma generation condition in a radio-frequency power condition and a processing time, and is the same as the first plasma generation condition in other conditions, and (d) repeating (b) and (c).
    Type: Application
    Filed: October 5, 2021
    Publication date: November 30, 2023
    Applicant: Tokyo Electron Limited
    Inventors: Atsutoshi INOKUCHI, Yasuhiko SAITO, Kiyoshi MAEDA
  • Patent number: 11495439
    Abstract: An apparatus for plasma processing that performs an etching on a workpiece, includes: a container; a gas supply system for supplying a processing gas into the container; a plasma source for exciting the processing gas; a support for holding the workpiece inside the container; an exhaust system for exhausting an internal space of the container; electrode plates provided on an inner wall of the container; insulators for electrically insulating the electrode plates from each other; a DC power supply for independently applying a DC voltage to each of the electrode plates; and a controller for controlling the gas supply system, the plasma source, and the DC power supply. The controller controls the gas supply system, the plasma source, and the DC power supply such that the DC voltage is supplied to each electrode plate during execution of the etching or after completion of the etching.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: November 8, 2022
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Kohei Mizota, Shin Okamoto, Atsutoshi Inokuchi
  • Publication number: 20210066048
    Abstract: An apparatus for plasma processing that performs an etching on a workpiece, includes: a container; a gas supply system for supplying a processing gas into the container; a plasma source for exciting the processing gas; a support for holding the workpiece inside the container; an exhaust system for exhausting an internal space of the container; electrode plates provided on an inner wall of the container; insulators for electrically insulating the electrode plates from each other; a DC power supply for independently applying a DC voltage to each of the electrode plates; and a controller for controlling the gas supply system, the plasma source, and the DC power supply. The controller controls the gas supply system, the plasma source, and the DC power supply such that the DC voltage is supplied to each electrode plate during execution of the etching or after completion of the etching.
    Type: Application
    Filed: August 26, 2020
    Publication date: March 4, 2021
    Inventors: Kohei MIZOTA, Shin OKAMOTO, Atsutoshi INOKUCHI
  • Patent number: 9767994
    Abstract: A shower plate is disposed in a processing chamber in a plasma processing apparatus, and plasma excitation gas is released into the processing chamber so as to generate plasma. A ceramic member having a plurality of gas release holes having a diameter of 20 ?m to 70 ?m, and/or a porous gas-communicating body having pores having a maximum diameter of not more than 75 ?m communicating in the gas-communicating direction are sintered and bonded integrally with the inside of each of a plurality of vertical holes which act as release paths for the plasma excitation gas.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: September 19, 2017
    Assignees: TOKYO ELECTRON LIMITED, NATIONAL UNIVERSITY CORPORATION TOHOKU UNIVERSITY
    Inventors: Masahiro Okesaku, Tadahiro Ohmi, Tetsuya Goto, Takaaki Matsuoka, Toshihisa Nozawa, Atsutoshi Inokuchi, Kiyotaka Ishibashi
  • Patent number: 9378942
    Abstract: Disclosed is a method for depositing an insulating film with a high coverage through a low temperature process. The deposition method deposits an insulating film on a substrate using a deposition apparatus which includes a processing container that defines a processing space in which plasma is generated, a gas supply unit configured to supply a gas into the processing space, and a plasma generating unit configured to generate plasma by supplying microwave into the processing container. The deposition method includes depositing an insulating film that includes SiN on the substrate by supplying into a gas formed by adding H2 to trisilylamine into the processing container and generating plasma.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: June 28, 2016
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Takehisa Saito, Atsutoshi Inokuchi, Shogo Masuda
  • Publication number: 20150069674
    Abstract: A shower plate is disposed in a processing chamber in a plasma processing apparatus, and plasma excitation gas is released into the processing chamber so as to generate plasma. A ceramic member having a plurality of gas release holes having a diameter of 20 ?m to 70 ?m, and/or a porous gas-communicating body having pores having a maximum diameter of not more than 75 ?m communicating in the gas-communicating direction are sintered and bonded integrally with the inside of each of a plurality of vertical holes which act as release paths for the plasma excitation gas.
    Type: Application
    Filed: November 17, 2014
    Publication date: March 12, 2015
    Inventors: Masahiro OKESAKU, Tadahiro OHMI, Tetsuya GOTO, Takaaki MATSUOKA, Toshihisa NOZAWA, Atsutoshi INOKUCHI, Kiyotaka ISHIBASHI
  • Patent number: 8915999
    Abstract: A shower plate is disposed in a processing chamber in a plasma processing apparatus, and plasma excitation gas is released into the processing chamber so as to generate plasma. A ceramic member having a plurality of gas release holes having a diameter of 20 ?m to 70 ?m, and/or a porous gas-communicating body having pores having a maximum diameter of not more than 75 ?m communicating in the gas-communicating direction are sintered and bonded integrally with the inside of each of a plurality of vertical holes which act as release paths for the plasma excitation gas.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: December 23, 2014
    Assignees: Tokyo Electron Limited, National University Corporation Tohoku University
    Inventors: Masahiro Okesaku, Tadahiro Ohmi, Tetsuya Goto, Takaaki Matsuoka, Toshihisa Nozawa, Atsutoshi Inokuchi, Kiyotaka Ishibashi
  • Publication number: 20140099734
    Abstract: Disclosed is a method for depositing an insulating film with a high coverage through a low temperature process. The deposition method deposits an insulating film on a substrate using a deposition apparatus which includes a processing container that defines a processing space in which plasma is generated, a gas supply unit configured to supply a gas into the processing space, and a plasma generating unit configured to generate plasma by supplying microwave into the processing container. The deposition method includes depositing an insulating film that includes SiN on the substrate by supplying into a gas formed by adding H2 to trisilylamine into the processing container and generating plasma.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 10, 2014
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Takehisa SAITO, Atsutoshi INOKUCHI, Shogo MASUDA
  • Patent number: 8592810
    Abstract: It is an object of the present invention to stably form an N-doped ZnO-based compound thin film. In the present invention, a gas containing oxygen and nitrogen and a nitrogen gas together with an organometallic material gas are supplied into a low-electron-temperature high-density plasma which is excited by microwave, thereby forming the N-doped ZnO-based compound thin film on a substrate as a film forming object.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: November 26, 2013
    Assignees: National University Corporation Tohoku University, Rohm Co., Ltd.
    Inventors: Tadahiro Ohmi, Hirokazu Asahara, Atsutoshi Inokuchi
  • Publication number: 20120205652
    Abstract: It is an object of the present invention to stably form an N-doped ZnO-based compound thin film. In the present invention, a gas containing oxygen and nitrogen and a nitrogen gas together with an organometallic material gas are supplied into a low-electron-temperature high-density plasma which is excited by microwave, thereby forming the N-doped ZnO-based compound thin film on a substrate as a film forming object.
    Type: Application
    Filed: October 7, 2010
    Publication date: August 16, 2012
    Inventors: Tadahiro Ohmi, Hirokazu Asahara, Atsutoshi Inokuchi
  • Patent number: 8188468
    Abstract: An organometal material gas is supplied into a low electron temperature and high density plasma excited by microwaves to form a thin film of a compound on a substrate as a film forming object. In this case, the temperature of a supply system for the organometal material gas is controlled by taking advantage of the relationship between the vapor pressure and temperature of the organometal material gas.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: May 29, 2012
    Assignees: National University Corporation Tohoku University, Rohm Co., Ltd., Tokyo Electron Limited, Ube Industries, Ltd.
    Inventors: Tadahiro Ohmi, Hirokazu Asahara, Atsutoshi Inokuchi, Kohei Watanuki
  • Publication number: 20110215384
    Abstract: In manufacturing processes of a semiconductor device including a shallow trench element isolation region and an interlayer insulating film of a multilayer structure, it is necessary to repeatedly use CMP, but since the CMP itself is costly, the repeated use of the CMP is a cause to increase the manufacturing cost. As an insulating film for use in a shallow trench (ST) element isolation region and/or a lowermost-layer interlayer insulating film, use is made of an insulating coating film that can be coated by spin coating. The insulating coating film has a composition expressed by ((CH3)nSiO2-n/2)x(SiO2)1-x(where n=1 to 3 and 0?x?1.0) and a film with a different relative permittivity k is formed by selecting heat treatment conditions. The STI element isolation region can be formed by modifying the insulating coating film completely to a SiO2 film, while the interlayer insulating film with a small relative permittivity k can be formed by converting it to a state not completely modified.
    Type: Application
    Filed: August 14, 2008
    Publication date: September 8, 2011
    Applicants: National University Corporation Tohoku University, Tokyo Electron Limited, Ube Industries, Ltd., Ube-Nitto Kasei Co., Ltd.
    Inventors: Tadahiro Ohmi, Takaaki Matsuoka, Atsutoshi Inokuchi, Kohei Watanuki, Tadashi Koike, Tatsuhiko Adachi
  • Publication number: 20110127075
    Abstract: An insulative coat film comprising one or two or more kinds of oxides having a dielectric constant (k) of 2.5 or smaller and expressed by a general formula of ((CH3)nSiO2-n/2)x(SiO2)1-x (where n=1 to 3, x?1) is used to form an interlayer insulation film. The insulative coat film applied by spin-coating is flat without reflecting underlying unevenness, and the heat-treated film has surface roughness of 1 nm or less in Ra and 20 nm or less in a P-V value. The interlayer insulation film containing the insulative coat film can have a wiring structure and an electrode formed only by etching without need of a CMP process.
    Type: Application
    Filed: August 14, 2008
    Publication date: June 2, 2011
    Applicants: NATIONAL UNIVERSITY CORPORATION TOHOKU UNIVERSITY, TOKYO ELECTRON LIMITED, UBE INDUSTRIES, LTD., UBE-NITTO KASEI CO., LTD.
    Inventors: Tadahiro Ohmi, Takaaki Matsuoka, Atsutoshi Inokuchi, Kohei Watanuki, Tadashi Koike, Tatsuhiko Adachi
  • Patent number: 7923819
    Abstract: A wiring structure of a semiconductor device or the like includes an interlayer insulating film having a fluorocarbon film formed on an underlayer, and a conductor buried in the interlayer insulating film. The fluorocarbon film contains nitrogen and is low in dielectric constant, excellent in reproducibility and stable.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: April 12, 2011
    Assignees: National Iniversity Corporation Tohoku University, Tokyo Electron Limited
    Inventors: Tadahiro Ohmi, Seiji Yasuda, Atsutoshi Inokuchi, Takaaki Matsuoka, Kohei Kawamura
  • Publication number: 20100178775
    Abstract: A shower plate is disposed in a processing chamber in a plasma processing apparatus, and plasma excitation gas is released into the processing chamber so as to generate plasma. A ceramic member having a plurality of gas release holes having a diameter of 20 ?m to 70 ?m, and/or a porous gas-communicating body having pores having a maximum diameter of not more than 75 ?m communicating in the gas-communicating direction are sintered and bonded integrally with the inside of each of a plurality of vertical holes which act as release paths for the plasma excitation gas.
    Type: Application
    Filed: September 26, 2007
    Publication date: July 15, 2010
    Applicants: TOKYO ELECTRON LIMITED, NATIONAL UNIVERSITY CORPORATION TOHOKU UNIVERSITY
    Inventors: Masahiro Okesaku, Tadahiro Ohmi, Tetsuya Goto, Takaaki Matsuoka, Toshihisa Nozawa, Atsutoshi Inokuchi, Kiyotaka Ishibashi
  • Publication number: 20100139762
    Abstract: An organometal material gas is supplied into a low electron temperature and high density plasma excited by microwaves to form a thin film of a compound on a substrate as a film forming object. In this case, the temperature of a supply system for the organometal material gas is controlled by taking advantage of the relationship between the vapor pressure and temperature of the organometal material gas.
    Type: Application
    Filed: May 2, 2008
    Publication date: June 10, 2010
    Applicants: NATIONAL UNIVERSITY CORP TOHOKU UNIVERSITY, ROHM CO., LTD., TOKYO ELECTRON LIMITED, UBE INDUSTRIES, LTD.
    Inventors: Tadahiro Ohmi, Hirokazu Asahara, Atsutoshi Inokuchi, Kohei Watanuki
  • Publication number: 20100101834
    Abstract: An interlayer insulation film can be produced by laminating a hydrocarbon layer containing an Si atom and a fluorocarbon layer containing an N atom on each other, wherein the hydrocarbon layer contains an H atom and a C atom at such a ratio that the ratio of the number of C atoms to the number of H atoms (H/C) becomes 0.8 to 1.2. The interlayer insulation film makes it possible to suppress generation of a leak current and the film shrinkage which may be caused by thermal annealing and has a low dielectric constant and is stable.
    Type: Application
    Filed: February 22, 2008
    Publication date: April 29, 2010
    Applicants: NATIONAL UNIVERSITY CORP. TOHOKU UNIVERSITY, TOKYO ELECTRON LIMITED, ZEON CORPORATION
    Inventors: Tadahiro Ohmi, Seiji Yasuda, Atsutoshi Inokuchi, Takaaki Matsuoka, Kohei Kawamura, Masahiro Nakamura
  • Publication number: 20100032844
    Abstract: A wiring structure of a semiconductor device or the like includes an interlayer insulating film having a fluorocarbon film formed on an underlayer, and a conductor buried in the interlayer insulating film. The fluorocarbon film contains nitrogen and is low in dielectric constant, excellent in reproducibility and stable.
    Type: Application
    Filed: November 8, 2007
    Publication date: February 11, 2010
    Applicants: National University Corporation Tohoku University, Tokyo Electron Limited
    Inventors: Tadahiro Ohmi, Seiji Yasuda, Atsutoshi Inokuchi, Takaaki Matsuoka, Kohei Kawamura