Patents by Inventor Takaumi Morita

Takaumi Morita 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: 20230307265
    Abstract: According to one embodiment, a substrate processing apparatus includes a processing tank configured to store a chemical solution for processing a substrate by immersion in a chemical solution. The substrate is held by a holding member during the processing. A lid is configured to open and close an upper end portion of the processing tank. The lid has a first bubble dispensing pipe formed or integrated therein. The first bubble dispensing pipe is configured to dispense a gas into the processing tank. A bottom surface side of the lid on a processing tank side may come into direct contact with the chemical solution in some examples. The first bubble dispensing pipe may dispense an inert gas into the chemical solution to improve process stability or the like.
    Type: Application
    Filed: August 29, 2022
    Publication date: September 28, 2023
    Inventors: Takaumi MORITA, Hiroshi FUJITA, Tatsuhiko KOIDE, Naomi YANAI, Tsubasa WATANABE
  • Publication number: 20230207616
    Abstract: 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: Application
    Filed: February 20, 2023
    Publication date: June 29, 2023
    Applicant: Kioxia Corporation
    Inventors: Fuyuma ITO, Tatsuhiko Koide, Hiroki Nakajima, Naomi Yanai, Tomohiko Sugita, Hakuba Kitagawa, Takaumi Morita
  • Patent number: 11616120
    Abstract: 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: Grant
    Filed: March 9, 2021
    Date of Patent: March 28, 2023
    Assignee: Kioxia Corporation
    Inventors: Fuyuma Ito, Tatsuhiko Koide, Hiroki Nakajima, Naomi Yanai, Tomohiko Sugita, Hakuba Kitagawa, Takaumi Morita
  • Publication number: 20220085153
    Abstract: 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: Application
    Filed: March 9, 2021
    Publication date: March 17, 2022
    Applicant: Kioxia Corporation
    Inventors: Fuyuma ITO, Tatsuhiko KOIDE, Hiroki NAKAJIMA, Naomi YANAI, Tomohiko SUGITA, Hakuba KITAGAWA, Takaumi MORITA
  • Publication number: 20220077183
    Abstract: In one embodiment, a semiconductor device includes a substrate, and a plurality of electrode layers provided separately from each other in a first direction perpendicular to a surface of the substrate. The device further includes a first insulator, a charge storage layer, a second insulator, a first semiconductor region including silicon, and a second semiconductor region including silicon and carbon, which are provided in order on side faces of the electrode layers, wherein an interface between the first semiconductor region and the second insulator includes fluorine.
    Type: Application
    Filed: March 10, 2021
    Publication date: March 10, 2022
    Applicant: Kioxia Corporation
    Inventors: Takaumi MORITA, Hisashi OKUCHI, Keiichi SAWA, Hiroyuki YAMASHITA, Toshiaki YANASE, Tsubasa IMAMURA
  • Patent number: 11211267
    Abstract: According to one embodiment, a substrate processing apparatus includes a table configured to place a substrate thereon and to connect the substrate to a positive electrode, an counter electrode located opposite to the table, having a plurality of holes, and connected to a negative electrode, and a holding unit located opposite to the table across the counter electrode and configured to supply a chemical liquid to the counter electrode while holding the counter electrode.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: December 28, 2021
    Assignee: Toshiba Memory Corporation
    Inventors: Yasuhito Yoshimizu, Hakuba Kitagawa, Takaumi Morita
  • Publication number: 20200211864
    Abstract: According to one embodiment, a substrate processing apparatus includes a table configured to place a substrate thereon and to connect the substrate to a positive electrode, an counter electrode located opposite to the table, having a plurality of holes, and connected to a negative electrode, and a holding unit located opposite to the table across the counter electrode and configured to supply a chemical liquid to the counter electrode while holding the counter electrode.
    Type: Application
    Filed: August 29, 2019
    Publication date: July 2, 2020
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Yasuhito YOSHIMIZU, Hakuba KITAGAWA, Takaumi MORITA
  • Patent number: 10580784
    Abstract: A memory device includes first and second conductive layers, first and second semiconductor members, first and second charge storage members, first and second insulating members, and first and second insulating layers. The second conductive layer is distant from the first conductive layer. The first semiconductor member is positioned between the first and second conductive layers. The second semiconductor member is positioned between the first semiconductor member and the second conductive layer. The first insulating layer includes a first region positioned between the first semiconductor member and the first charge storage member and a second region positioned between the first semiconductor member and the second semiconductor member. The second insulating layer includes a third region positioned between the second semiconductor member and the second charge storage member and a fourth region positioned between the second region and the second semiconductor member.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: March 3, 2020
    Assignee: Toshiba Memory Corporation
    Inventors: Yasuhito Yoshimizu, Takaumi Morita
  • Patent number: 10522596
    Abstract: In one embodiment, a semiconductor storage device includes a first interconnect extending in a first direction, a plurality of second interconnects extending in a second direction different from the first direction, and a plurality of first insulators provided alternately with the second interconnects. The device further includes a resistance change film provided between the first interconnect and at least one of the second interconnects and including a first metal layer or a first semiconductor layer that includes a first face provided on a first interconnect side and a second face provided on a second interconnect side, at least any of the first face and the second face having a curved plane shape.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: December 31, 2019
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Keiichi Sawa, Kazuhisa Matsuda, Atsushi Takahashi, Takaumi Morita, Masayuki Tanaka, Shinji Mori, Kazuhiro Matsuo, Yuta Saito, Kenichiro Toratani, Hisashi Okuchi
  • Publication number: 20190067311
    Abstract: A memory device includes first and second conductive layers, first and second semiconductor members, first and second charge storage members, first and second insulating members, and first and second insulating layers. The second conductive layer is distant from the first conductive layer. The first semiconductor member is positioned between the first and second conductive layers. The second semiconductor member is positioned between the first semiconductor member and the second conductive layer. The first insulating layer includes a first region positioned between the first semiconductor member and the first charge storage member and a second region positioned between the first semiconductor member and the second semiconductor member. The second insulating layer includes a third region positioned between the second semiconductor member and the second charge storage member and a fourth region positioned between the second region and the second semiconductor member.
    Type: Application
    Filed: August 7, 2018
    Publication date: February 28, 2019
    Applicant: Toshiba Memory Corporation
    Inventors: Yasuhito YOSHIMIZU, Takaumi MORITA
  • Publication number: 20190027538
    Abstract: In one embodiment, a semiconductor storage device includes a first interconnect extending in a first direction, a plurality of second interconnects extending in a second direction different from the first direction, and a plurality of first insulators provided alternately with the second interconnects. The device further includes a resistance change film provided between the first interconnect and at least one of the second interconnects and including a first metal layer or a first semiconductor layer that includes a first face provided on a first interconnect side and a second face provided on a second interconnect side, at least any of the first face and the second face having a curved plane shape.
    Type: Application
    Filed: February 8, 2018
    Publication date: January 24, 2019
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Keiichi Sawa, Kazuhisa Matsuda, Atsushi Takahashi, Takaumi Morita, Masayuki Tanaka, Shinji Mori, Kazuhiro Matsuo, Yuta Saito, Kenichiro Toratani, Hisashi Okuchi