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).
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Patent number: 12027367Abstract: 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: GrantFiled: October 25, 2021Date of Patent: July 2, 2024Assignee: Kioxia CorporationInventors: Masayuki Kitamura, Takayuki Beppu, Tomotaka Ariga
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Patent number: 12010845Abstract: 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: GrantFiled: August 27, 2021Date of Patent: June 11, 2024Assignee: KIOXIA CORPORATIONInventors: Katsuaki Natori, Hiroshi Toyoda, Koji Yamakawa, Takayuki Beppu, Masayuki Kitamura
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Publication number: 20240178298Abstract: 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: ApplicationFiled: September 8, 2023Publication date: May 30, 2024Applicant: Kioxia CorporationInventors: Takayuki BEPPU, Hiroko TAHARA, Masayuki KITAMURA, Hiroshi TOYODA, Hiroyuki OHTORI
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Publication number: 20240130125Abstract: 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: ApplicationFiled: June 28, 2023Publication date: April 18, 2024Applicant: Kioxia CorporationInventors: Katsuaki NATORI, Hiroshi TOYODA, Masayuki KITAMURA, Takayuki BEPPU, Koji YAMAKAWA, Kenichiro TORATANI
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Patent number: 11699731Abstract: 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: GrantFiled: August 26, 2020Date of Patent: July 11, 2023Assignee: KIOXIA CORPORATIONInventors: Takayuki Beppu, Masayuki Kitamura, Hiroshi Toyoda, Katsuaki Natori
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Publication number: 20230064038Abstract: 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: ApplicationFiled: March 4, 2022Publication date: March 2, 2023Applicant: Kioxia CorporationInventors: Naomi Fukumaki, Ayaka Sakai, Takayuki Beppu
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Publication number: 20220165554Abstract: 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: ApplicationFiled: February 11, 2022Publication date: May 26, 2022Inventors: Katsuaki NATORI, Hiroshi TOYODA, Masayuki KITAMURA, Takayuki BEPPU
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Patent number: 11282681Abstract: 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: GrantFiled: August 28, 2019Date of Patent: March 22, 2022Assignee: KIOXIA CORPORATIONInventors: Katsuaki Natori, Hiroshi Toyoda, Masayuki Kitamura, Takayuki Beppu
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Publication number: 20220085066Abstract: 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: ApplicationFiled: August 27, 2021Publication date: March 17, 2022Applicant: Kioxia CorporationInventors: Katsuaki NATORI, Hiroshi TOYODA, Koji YAMAKAWA, Takayuki BEPPU, Masayuki KITAMURA
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Publication number: 20220044925Abstract: 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: ApplicationFiled: October 25, 2021Publication date: February 10, 2022Applicant: Toshiba Memory CorporationInventors: Masayuki KITAMURA, Takayuki BEPPU, Tomotaka ARIGA
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Patent number: 11189489Abstract: 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: GrantFiled: September 11, 2019Date of Patent: November 30, 2021Assignee: Toshiba Memory CorporationInventors: Masayuki Kitamura, Takayuki Beppu, Tomotaka Ariga
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Publication number: 20210305275Abstract: 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: ApplicationFiled: August 27, 2020Publication date: September 30, 2021Applicant: Kioxia CorporationInventors: Katsuaki NATORI, Hiroshi TOYODA, Masayuki KITAMURA, Takayuki BEPPU, Koji YAMAKAWA, Kenichiro TORATANI
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Publication number: 20210066468Abstract: 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: ApplicationFiled: August 26, 2020Publication date: March 4, 2021Applicant: KIOXIA CORPORATIONInventors: Takayuki BEPPU, Masayuki KITAMURA, Hiroshi TOYODA, Katsuaki NATORI
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Publication number: 20200294793Abstract: 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: ApplicationFiled: September 11, 2019Publication date: September 17, 2020Applicant: Toshiba Memory CorporationInventors: Masayuki KITAMURA, Takayuki BEPPU, Tomotaka ARIGA
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Publication number: 20200258722Abstract: 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: ApplicationFiled: August 28, 2019Publication date: August 13, 2020Inventors: Katsuaki NATORI, Hiroshi TOYODA, Masayuki KITAMURA, Takayuki BEPPU
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Publication number: 20160358762Abstract: 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: ApplicationFiled: August 26, 2015Publication date: December 8, 2016Applicant: Kabushiki Kaisha ToshibaInventors: Takayuki BEPPU, Kazuaki NAKAJIMA, Seiichi OMOTO
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Publication number: 20160260734Abstract: 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: ApplicationFiled: July 1, 2015Publication date: September 8, 2016Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Takayuki BEPPU, Kazuaki NAKAJIMA, Seiichi OMOTO