Patents by Inventor Takayuki BEPPU

Takayuki BEPPU 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: 12027367
    Abstract: In a manufacturing method of a semiconductor device according to one embodiment, a first gas containing a first metal element is introduced into a chamber having a substrate housed therein. Next, the first gas is discharged from the chamber using a purge gas. Subsequently, a second gas reducing the first gas is introduced into the chamber. Next, the second gas is discharged from the chamber using the purge gas. Further, a third gas different from the first gas, the second gas, and the purge gas is introduced into the chamber at least either at a time of discharging the first gas or at a time of discharging the second gas.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: July 2, 2024
    Assignee: Kioxia Corporation
    Inventors: Masayuki Kitamura, Takayuki Beppu, Tomotaka Ariga
  • Patent number: 12010845
    Abstract: According to one embodiment, a method for manufacturing a semiconductor device includes: (a) supplying an adsorbing material over an insulating film, wherein the adsorbing material is selected from the group consisting of H2O, HF, NO, NO2, NF3, and combinations thereof; (b) supplying a Mo material over the insulating film; (c) supplying a reducing agent over the insulating film; and (d) repeating the steps (a) to (c).
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: June 11, 2024
    Assignee: KIOXIA CORPORATION
    Inventors: Katsuaki Natori, Hiroshi Toyoda, Koji Yamakawa, Takayuki Beppu, Masayuki Kitamura
  • Publication number: 20240178298
    Abstract: In one embodiment, a semiconductor device includes a first layer including a metal element. The device further includes a first insulator that is in contact with the first layer and includes silicon and oxygen. The device further includes a second layer that is in contact with the first insulator and includes molybdenum or tungsten.
    Type: Application
    Filed: September 8, 2023
    Publication date: May 30, 2024
    Applicant: Kioxia Corporation
    Inventors: Takayuki BEPPU, Hiroko TAHARA, Masayuki KITAMURA, Hiroshi TOYODA, Hiroyuki OHTORI
  • Publication number: 20240130125
    Abstract: A semiconductor device includes a conductive film containing molybdenum and a metal element. The metal element has a melting point lower than the melting point of molybdenum and forms a complete solid solution with molybdenum. The metal element as a material for composing the conductive film is at least one selected from the group consisting of, for example, titanium, vanadium, and niobium.
    Type: Application
    Filed: June 28, 2023
    Publication date: April 18, 2024
    Applicant: Kioxia Corporation
    Inventors: Katsuaki NATORI, Hiroshi TOYODA, Masayuki KITAMURA, Takayuki BEPPU, Koji YAMAKAWA, Kenichiro TORATANI
  • Patent number: 11699731
    Abstract: According to at least one embodiment, a semiconductor device includes a plurality of insulating films adjacent to each other. A conductive film is provided between the plurality of insulating films. The conductive film includes molybdenum having a grain diameter substantially the same as a distance from an upper surface to a lower surface of the conductive film.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: July 11, 2023
    Assignee: KIOXIA CORPORATION
    Inventors: Takayuki Beppu, Masayuki Kitamura, Hiroshi Toyoda, Katsuaki Natori
  • Publication number: 20230064038
    Abstract: A semiconductor device includes a substrate and an insulating film formed on the substrate, and an electrode layer comprising molybdenum, formed in contact with the insulating film. The electrode layer has a chlorine concentration gradient such that a first concentration of chlorine in a first portion of the electrode layer closer to the insulating layer is higher than a second concentration of chlorine in a second portion of the electrode layer less closer to the insulating layer.
    Type: Application
    Filed: March 4, 2022
    Publication date: March 2, 2023
    Applicant: Kioxia Corporation
    Inventors: Naomi Fukumaki, Ayaka Sakai, Takayuki Beppu
  • Publication number: 20220165554
    Abstract: A method of manufacturing a semiconductor device includes placing a substrate in a housing, supplying first gas containing molybdenum to the housing to form a film that contains molybdenum, on the substrate, removing the substrate with the formed film from the hosing, and then supplying second gas containing chlorine to the housing to remove molybdenum deposited on a surface of the housing.
    Type: Application
    Filed: February 11, 2022
    Publication date: May 26, 2022
    Inventors: Katsuaki NATORI, Hiroshi TOYODA, Masayuki KITAMURA, Takayuki BEPPU
  • Patent number: 11282681
    Abstract: A method of manufacturing a semiconductor device includes placing a substrate in a housing, supplying first gas containing molybdenum to the housing to form a film that contains molybdenum, on the substrate, removing the substrate with the formed film from the hosing, and then supplying second gas containing chlorine to the housing to remove molybdenum deposited on a surface of the housing.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: March 22, 2022
    Assignee: KIOXIA CORPORATION
    Inventors: Katsuaki Natori, Hiroshi Toyoda, Masayuki Kitamura, Takayuki Beppu
  • Publication number: 20220085066
    Abstract: According to one embodiment, a method for manufacturing a semiconductor device includes: (a) supplying an adsorbing material over an insulating film, wherein the adsorbing material is selected from the group consisting of H2O, HF, NO, NO2, NF3, and combinations thereof; (b) supplying a Mo material over the insulating film; (c) supplying a reducing agent over the insulating film; and (d) repeating the steps (a) to (c).
    Type: Application
    Filed: August 27, 2021
    Publication date: March 17, 2022
    Applicant: Kioxia Corporation
    Inventors: Katsuaki NATORI, Hiroshi TOYODA, Koji YAMAKAWA, Takayuki BEPPU, Masayuki KITAMURA
  • Publication number: 20220044925
    Abstract: In a manufacturing method of a semiconductor device according to one embodiment, a first gas containing a first metal element is introduced into a chamber having a substrate housed therein. Next, the first gas is discharged from the chamber using a purge gas. Subsequently, a second gas reducing the first gas is introduced into the chamber. Next, the second gas is discharged from the chamber using the purge gas. Further, a third gas different from the first gas, the second gas, and the purge gas is introduced into the chamber at least either at a time of discharging the first gas or at a time of discharging the second gas.
    Type: Application
    Filed: October 25, 2021
    Publication date: February 10, 2022
    Applicant: Toshiba Memory Corporation
    Inventors: Masayuki KITAMURA, Takayuki BEPPU, Tomotaka ARIGA
  • Patent number: 11189489
    Abstract: In a manufacturing method of a semiconductor device according to one embodiment, a first gas containing a first metal element is introduced into a chamber having a substrate housed therein. Next, the first gas is discharged from the chamber using a purge gas. Subsequently, a second gas reducing the first gas is introduced into the chamber. Next, the second gas is discharged from the chamber using the purge gas. Further, a third gas different from the first gas, the second gas, and the purge gas is introduced into the chamber at least either at a time of discharging the first gas or at a time of discharging the second gas.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: November 30, 2021
    Assignee: Toshiba Memory Corporation
    Inventors: Masayuki Kitamura, Takayuki Beppu, Tomotaka Ariga
  • Publication number: 20210305275
    Abstract: A semiconductor device includes a conductive film containing molybdenum and a metal element. The metal element has a melting point lower than the melting point of molybdenum and forms a complete solid solution with molybdenum. The metal element as a material for composing the conductive film is at least one selected from the group consisting of, for example, titanium, vanadium, and niobium.
    Type: Application
    Filed: August 27, 2020
    Publication date: September 30, 2021
    Applicant: Kioxia Corporation
    Inventors: Katsuaki NATORI, Hiroshi TOYODA, Masayuki KITAMURA, Takayuki BEPPU, Koji YAMAKAWA, Kenichiro TORATANI
  • Publication number: 20210066468
    Abstract: According to at least one embodiment, a semiconductor device includes a plurality of insulating films adjacent to each other. A conductive film is provided between the plurality of insulating films. The conductive film includes molybdenum having a grain diameter substantially the same as a distance from an upper surface to a lower surface of the conductive film.
    Type: Application
    Filed: August 26, 2020
    Publication date: March 4, 2021
    Applicant: KIOXIA CORPORATION
    Inventors: Takayuki BEPPU, Masayuki KITAMURA, Hiroshi TOYODA, Katsuaki NATORI
  • Publication number: 20200294793
    Abstract: In a manufacturing method of a semiconductor device according to one embodiment, a first gas containing a first metal element is introduced into a chamber having a substrate housed therein. Next, the first gas is discharged from the chamber using a purge gas. Subsequently, a second gas reducing the first gas is introduced into the chamber. Next, the second gas is discharged from the chamber using the purge gas. Further, a third gas different from the first gas, the second gas, and the purge gas is introduced into the chamber at least either at a time of discharging the first gas or at a time of discharging the second gas.
    Type: Application
    Filed: September 11, 2019
    Publication date: September 17, 2020
    Applicant: Toshiba Memory Corporation
    Inventors: Masayuki KITAMURA, Takayuki BEPPU, Tomotaka ARIGA
  • Publication number: 20200258722
    Abstract: A method of manufacturing a semiconductor device includes placing a substrate in a housing, supplying first gas containing molybdenum to the housing to form a film that contains molybdenum, on the substrate, removing the substrate with the formed film from the hosing, and then supplying second gas containing chlorine to the housing to remove molybdenum deposited on a surface of the housing.
    Type: Application
    Filed: August 28, 2019
    Publication date: August 13, 2020
    Inventors: Katsuaki NATORI, Hiroshi TOYODA, Masayuki KITAMURA, Takayuki BEPPU
  • Publication number: 20160358762
    Abstract: In one embodiment, a semiconductor manufacturing system includes a gas supply module configured to supply an etching gas. The system further includes a chamber configured to house a substrate. The system further includes a metal member housing provided outside the chamber and configured to house a metal member, the metal member housing being configured to introduce the etching gas and to discharge a metal-containing gas that contains a metal etched from the metal member by the etching gas. Furthermore, the chamber is configured to introduce the metal-containing gas discharged from the metal member housing and to form a metal film on the substrate by the metal-containing gas.
    Type: Application
    Filed: August 26, 2015
    Publication date: December 8, 2016
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Takayuki BEPPU, Kazuaki NAKAJIMA, Seiichi OMOTO
  • Publication number: 20160260734
    Abstract: In one embodiment, a semiconductor device includes a substrate, a semiconductor layer provided on the substrate, and plural insulators and plural interconnects alternately provided on a side face of the semiconductor layer. Each of the interconnects includes a first interconnect layer provided on the side face of the semiconductor layer, and having an upper face that is in contact with one of the insulators and a lower face that is in contact with one of the insulators. Each of the interconnects further includes a second interconnect layer provided on a side face of the first interconnect layer, and having an upper face that is in contact with one of the insulators and a lower face that is in contact with one of the insulators.
    Type: Application
    Filed: July 1, 2015
    Publication date: September 8, 2016
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takayuki BEPPU, Kazuaki NAKAJIMA, Seiichi OMOTO