Patents by Inventor Tomohiko Sugita
Tomohiko Sugita 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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Publication number: 20240087918Abstract: According to one embodiment, a substrate processing apparatus has a treatment tank, a holder to hold the substrate while in the treatment tank, a chemical discharge pipe below a position of the holder for supplying a chemical solution to the treatment tank, a bubble discharge pipe below the position of the holder for discharging a gas. The first bubble discharge pipe is closer along a horizontal direction to a centerline of the treatment tank than is the chemical discharge pipe. A rectifying plate is disposed below the position of the holder and extends from a position above the chemical discharge pipe to a position above the first bubble discharge pipe at an incline with respect to the first direction horizontal.Type: ApplicationFiled: August 29, 2023Publication date: March 14, 2024Inventors: Tomohiko SUGITA, Hiroshi FUJITA, Tatsuhiko KOIDE, Katsuhiro SATO
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Publication number: 20230207616Abstract: A semiconductor substrate includes a surface having a groove. The groove includes an inner bottom surface and an inner wall surface. The inner wall surface has a depression. The depression has a depth from a direction along a surface of the inner wall surface to a width direction of the groove. The substrate being exposed to the inner wall surface.Type: ApplicationFiled: February 20, 2023Publication date: June 29, 2023Applicant: Kioxia CorporationInventors: Fuyuma ITO, Tatsuhiko Koide, Hiroki Nakajima, Naomi Yanai, Tomohiko Sugita, Hakuba Kitagawa, Takaumi Morita
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Patent number: 11616120Abstract: A semiconductor substrate includes a surface having a groove. The groove includes an inner bottom surface and an inner wall surface. The inner wall surface has a depression. The depression has a depth from a direction along a surface of the inner wall surface to a width direction of the groove. The substrate being exposed to the inner wall surface.Type: GrantFiled: March 9, 2021Date of Patent: March 28, 2023Assignee: Kioxia CorporationInventors: Fuyuma Ito, Tatsuhiko Koide, Hiroki Nakajima, Naomi Yanai, Tomohiko Sugita, Hakuba Kitagawa, Takaumi Morita
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Patent number: 11610789Abstract: In one embodiment, a semiconductor manufacturing apparatus includes a container configured to contain a substrate, and a pipe configured to supply the container with liquid to treat the substrate. The apparatus further includes an ejector including a first passage where the liquid introduced from the pipe and the liquid introduced from the container are joined and pass through, and a first opening configured to eject the liquid that has passed through the first passage. Furthermore, the first passage has an area where a sectional area of the first passage becomes large as advancing downstream in the liquid.Type: GrantFiled: December 11, 2020Date of Patent: March 21, 2023Assignee: Kioxia CorporationInventors: Katsuhiro Sato, Hiroshi Fujita, Yoshinori Kitamura, Satoshi Nakaoka, Tomohiko Sugita
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Publication number: 20220406626Abstract: According to one embodiment, a substrate processing device includes a processing tank to store a liquid and to permit a plurality of substrates to be immersed in the liquid at the same time. The device also has a holder member configured to hold the plurality of substrates while the substrates are immersed into and withdrawn from the liquid in the processing tank as well as a straightening vane configured to be positioned in the liquid above the plurality of substrates in the processing tank. The straightening vane includes vane portions extending in a vertical direction into the processing tank that have a length in the vertical direction that is greater than a cross sectional width in a horizontal direction perpendicular to the vertical direction. A bubble discharge pipe is disposed in the processing tank below the holder member. The bubble discharge pipe discharges gas into the liquid.Type: ApplicationFiled: February 28, 2022Publication date: December 22, 2022Inventors: Tomohiko SUGITA, Hiroshi FUJITA, Tatsuhiko KOIDE
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Publication number: 20220085153Abstract: A semiconductor substrate includes a surface having a groove. The groove includes an inner bottom surface and an inner wall surface. The inner wall surface has a depression. The depression has a depth from a direction along a surface of the inner wall surface to a width direction of the groove. The substrate being exposed to the inner wall surface.Type: ApplicationFiled: March 9, 2021Publication date: March 17, 2022Applicant: Kioxia CorporationInventors: Fuyuma ITO, Tatsuhiko KOIDE, Hiroki NAKAJIMA, Naomi YANAI, Tomohiko SUGITA, Hakuba KITAGAWA, Takaumi MORITA
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Publication number: 20210398825Abstract: In one embodiment, a semiconductor manufacturing apparatus includes a substrate holder configured to hold a plurality of substrates such that the substrates are arranged in parallel to each other. The apparatus further includes a fluid injector including a plurality of openings that inject fluid to areas in which distances from surfaces of the substrates are within distances between centers of the substrates adjacent to each other, the fluid injector being configured to change injection directions of the fluid injected from the openings in planes that are parallel to the surfaces of the substrates by self-oscillation.Type: ApplicationFiled: September 1, 2021Publication date: December 23, 2021Applicant: TOSHIBA MEMORY CORPORATIONInventors: Tomohiko SUGITA, Katsuhiro SATO, Hiroaki ASHIDATE
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Patent number: 11145670Abstract: A semiconductor storage device according to an embodiment comprises a substrate. A stack body having first conductive layers and first insulating layers alternately stacked in a first direction is provided on the substrate. A pillar part extends in the first direction in the stack body and has a memory film. An insulating member extends in the first direction at a position different from that of the pillar part in the stack body. A phosphorus-containing insulator is provided below the stack body and the insulating member.Type: GrantFiled: March 13, 2019Date of Patent: October 12, 2021Assignee: TOSHIBA MEMORY CORPORATIONInventors: Yasuhito Yoshimizu, Tomohiko Sugita
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Publication number: 20210280438Abstract: In one embodiment, a semiconductor manufacturing apparatus includes a container configured to contain a substrate, and a pipe configured to supply the container with liquid to treat the substrate. The apparatus further includes an ejector including a first passage where the liquid introduced from the pipe and the liquid introduced from the container are joined and pass through, and a first opening configured to eject the liquid that has passed through the first passage. Furthermore, the first passage has an area where a sectional area of the first passage becomes large as advancing downstream in the liquid.Type: ApplicationFiled: December 11, 2020Publication date: September 9, 2021Applicant: Kioxia CorporationInventors: Katsuhiro SATO, Hiroshi FUJITA, Yoshinori KITAMURA, Satoshi NAKAOKA, Tomohiko SUGITA
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Patent number: 10978316Abstract: A semiconductor processing device according to an embodiment includes a processing tank configured to store a chemical therein to allow a semiconductor substrate to be immersed in the chemical. A gas supply part is provided below the semiconductor substrate accommodated in the processing tank and is configured to supply air bubbles to the chemical from below the semiconductor substrate. A chemical supply part is provided above the gas supply part and below the semiconductor substrate and is configured to discharge the chemical caused to circulate from the processing tank, towards the air bubbles appearing from the gas supply part.Type: GrantFiled: July 26, 2018Date of Patent: April 13, 2021Assignee: TOSHIBA MEMORY CORPORATIONInventors: Satoshi Nakaoka, Tomohiko Sugita, Shinsuke Kimura, Hiroaki Ashidate, Katsuhiro Sato
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Publication number: 20200066751Abstract: A semiconductor storage device according to an embodiment comprises a substrate. A stack body having first conductive layers and first insulating layers alternately stacked in a first direction is provided on the substrate. A pillar part extends in the first direction in the stack body and has a memory film. An insulating member extends in the first direction at a position different from that of the pillar part in the stack body. A phosphorus-containing insulator is provided below the stack body and the insulating member.Type: ApplicationFiled: March 13, 2019Publication date: February 27, 2020Applicant: TOSHIBA MEMORY CORPORATIONInventors: Yasuhito Yoshimizu, Tomohiko Sugita
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Publication number: 20190385867Abstract: In one embodiment, a semiconductor manufacturing apparatus includes a substrate holder configured to hold a plurality of substrates such that the substrates are arranged in parallel to each other. The apparatus further includes a fluid injector including a plurality of openings that inject fluid to areas in which distances from surfaces of the substrates are within distances between centers of the substrates adjacent to each other, the fluid injector being configured to change injection directions of the fluid injected from the openings in planes that are parallel to the surfaces of the substrates by self-oscillation.Type: ApplicationFiled: February 6, 2019Publication date: December 19, 2019Applicant: TOSHIBA MEMORY CORPORATIONInventors: Tomohiko SUGITA, Katsuhiro Sato, Hiroaki Ashidate
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Publication number: 20190259639Abstract: A semiconductor processing device according to an embodiment includes a processing tank configured to store a chemical therein to allow a semiconductor substrate to be immersed in the chemical. A gas supply part is provided below the semiconductor substrate accommodated in the processing tank and is configured to supply air bubbles to the chemical from below the semiconductor substrate. A chemical supply part is provided above the gas supply part and below the semiconductor substrate and is configured to discharge the chemical caused to circulate from the processing tank, towards the air bubbles appearing from the gas supply part.Type: ApplicationFiled: July 26, 2018Publication date: August 22, 2019Applicant: TOSHIBA MEMORY CORPORATIONInventors: Satoshi NAKAOKA, Tomohiko Sugita, Shinsuke Kimura, Hiroaki Ashidate, Katsuhiro Sato
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Patent number: 10290490Abstract: In one embodiment, a dust collecting apparatus includes a container configured to contain a fluid that includes particles to be collected. The apparatus further includes one or more sound sources configured to generate, in the container, a standing sound wave including at least one node to trap the particles in a vicinity of the node. The one or more sound sources are configured to generate the standing sound wave so that the node does not contact a wall face of the container or contacts a predetermined portion of the wall face of the container. The predetermined portion is formed of a member that prevents the particles from leaving from the node located in a vicinity of the predetermined portion.Type: GrantFiled: August 17, 2016Date of Patent: May 14, 2019Assignee: TOSHIBA MEMORY CORPORATIONInventors: Tomohiko Sugita, Hiroyasu Iimori, Yoshihiro Ogawa
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Patent number: 10199209Abstract: In one embodiment, a substrate treatment apparatus includes cleaning and rinse modules configured to clean and rinse a surface of a substrate provided with a pattern, and a solidifying agent containing liquid supplying module configured to supply a solidifying agent containing liquid that contains a solidifying agent to the cleaned and rinsed surface of the substrate. The apparatus further includes a precipitation module configured to precipitate the solidifying agent as solid on the surface of the substrate, and a decomposition module configured to decompose and gasify the solid to remove the solid from the surface of the substrate. The solidifying agent contains an ammonium salt, and the ammonium salt contains an ammonium ion or an ion having a structure in which at least one of four hydrogen atoms of an ammonium ion is substituted with another atom or atom group.Type: GrantFiled: January 4, 2016Date of Patent: February 5, 2019Assignee: TOSHIBA MEMORY CORPORATIONInventors: Tomohiko Sugita, Katsuhiro Sato, Hiroyasu Iimori, Yoshihiro Ogawa
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Publication number: 20170250069Abstract: In one embodiment, a dust collecting apparatus includes a container configured to contain a fluid that includes particles to be collected. The apparatus further includes one or more sound sources configured to generate, in the container, a standing sound wave including at least one node to trap the particles in a vicinity of the node. The one or more sound sources are configured to generate the standing sound wave so that the node does not contact a wall face of the container or contacts a predetermined portion of the wall face of the container. The predetermined portion is formed of a member that prevents the particles from leaving from the node located in a vicinity of the predetermined portion.Type: ApplicationFiled: August 17, 2016Publication date: August 31, 2017Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Tomohiko SUGITA, Hiroyasu llMORI, Yoshihiro OGAWA
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Publication number: 20160365240Abstract: In one embodiment, a substrate treatment method includes cleaning and rinsing a surface of a substrate provided with a pattern, and supplying a solidifying agent containing liquid that contains a solidifying agent to the cleaned and rinsed surface of the substrate. The method further includes precipitating the solidifying agent as solid on the surface of the substrate, and decomposing and gasifying the solid to remove the solid from the surface of the substrate. Furthermore the solidifying agent contains an ammonium salt, and the ammonium salt contains an ammonium ion or an ion having a structure in which at least one of four hydrogen atoms of an ammonium ion is substituted with another atom or an atom group.Type: ApplicationFiled: January 4, 2016Publication date: December 15, 2016Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Tomohiko SUGITA, Katsuhiro SATO, Hiroyasu llMORI, Yoshihiro OGAWA
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Patent number: 9514952Abstract: A method of manufacturing a semiconductor device includes processing a plurality of substrates each provided with an etch target by using a chemical liquid, the chemical liquid used repeatedly and being mixed with water for adjustment of an etch rate.Type: GrantFiled: April 6, 2015Date of Patent: December 6, 2016Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Hiroyasu Iimori, Takehiro Ogata, Tomohiko Sugita
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Publication number: 20160071738Abstract: A method of manufacturing a semiconductor device includes processing a plurality of substrates each provided with an etch target by using a chemical liquid, the chemical liquid used repeatedly and being mixed with water for adjustment of an etch rate.Type: ApplicationFiled: April 6, 2015Publication date: March 10, 2016Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hiroyasu Iimori, Takehiro Ogata, Tomohiko Sugita