Patents by Inventor Yasuhiro Uchiyama

Yasuhiro Uchiyama 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: 20240133768
    Abstract: There is provided a vibration test support network system that connects a plurality of vibration test devices via a network and supports maintenance of vibration test devices and stabilization of accuracy of the vibration test through analysis of self-diagnosis information by the vibration test devices. A vibration test support network system 300 includes a plurality of vibration test devices 200, a network 210 connecting the plurality of vibration test devices 200, and an analysis device 220 connected to the network 210 and configured to transmit and receive information to and from the plurality of vibration test devices 200 via the network 210.
    Type: Application
    Filed: July 19, 2022
    Publication date: April 25, 2024
    Inventors: Yasushi MIYANISHI, Yasuhiro UCHIYAMA, Mutsuhito SUDO, Katsuhiko NAKAMURA
  • Publication number: 20240064986
    Abstract: According to one embodiment, a memory device includes: a first conductive layer; a first conductive film extending in a first direction above the first conductive layer; a first semiconductor film extending in the first direction between the first conductive layer and the first conductive film and intersecting the first conductive layer; a second semiconductor film that is in contact with the first semiconductor film, extends in the first direction between the first conductive layer and the first conductive film, and faces the first conductive film; a first insulating film provided between the first conductive layer and the first semiconductor film; and a second insulating film provided between the first conductive film and each of the first semiconductor film and the second semiconductor film.
    Type: Application
    Filed: October 30, 2023
    Publication date: February 22, 2024
    Inventors: Hiroshi NAKAKI, Yasuhiro UCHIYAMA
  • Publication number: 20230395500
    Abstract: According to one embodiment, there is provided a semiconductor memory device including a first chip, a second chip and a third chip. In the first chip, plural first conductive layers are stacked via a first insulating layer. In the second chip, plural second conductive layers are stacked via a second insulating layer. A number of stack layers in the plural first conductive layers and a number of stack layers in the plural second conductive layers are different from each other.
    Type: Application
    Filed: March 10, 2023
    Publication date: December 7, 2023
    Applicant: Kioxia Corporation
    Inventors: Keisuke NAKATSUKA, Yasuhiro UCHIYAMA
  • Publication number: 20230320107
    Abstract: A semiconductor storage device of an embodiment includes a substrate, a plurality of first conductive layers, pillar, and a second conductive layer. The plurality of first conductive layers are provided above the substrate, and mutually separated in a first direction. The pillar is provided to penetrate the plurality of the first conductive layers, and includes a first semiconductor layer extending in the first direction. A part of the pillar that intersects with the first conductive layers are functioned as memory cells. The second conductive layer is provided above the plurality of first conductive layers and is in contact with the first semiconductor layer. The second conductive layer is made of a metal or a silicide.
    Type: Application
    Filed: June 7, 2023
    Publication date: October 5, 2023
    Applicant: Kioxia Corporation
    Inventors: Keisuke NAKATSUKA, Yasuhiro UCHIYAMA, Akira MINO, Masayoshi TAGAMI, Shinya ARAI
  • Publication number: 20230282621
    Abstract: According to one embodiment, a semiconductor device includes a substrate, a logic circuit provided on the substrate, and a memory cell array provided over the logic circuit that includes a plurality of electrode layers stacked on top of one another and a semiconductor layer provided over the plurality of electrode layers. The semiconductor device further includes a first plug and a second plug provided above the logic circuit and electrically connected to the logic circuit, a bonding pad provided on the first plug, and a metallic wiring layer provided on the memory cell array, electrically connected to the semiconductor layer, and electrically connected to the second plug.
    Type: Application
    Filed: May 11, 2023
    Publication date: September 7, 2023
    Applicant: KIOXIA CORPORATION
    Inventor: Yasuhiro UCHIYAMA
  • Patent number: 11688720
    Abstract: According to one embodiment, a semiconductor device includes a substrate, a logic circuit provided on the substrate, and a memory cell array provided over the logic circuit that includes a plurality of electrode layers stacked on top of one another and a semiconductor layer provided over the plurality of electrode layers. The semiconductor device further includes a first plug and a second plug provided above the logic circuit and electrically connected to the logic circuit, a bonding pad provided on the first plug, and a metallic wiring layer provided on the memory cell array, electrically connected to the semiconductor layer, and electrically connected to the second plug.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: June 27, 2023
    Assignee: KIOXIA CORPORATION
    Inventor: Yasuhiro Uchiyama
  • Publication number: 20230116382
    Abstract: A semiconductor storage device includes: a stacked body having a plurality of insulating layers and a plurality of gate electrode layers alternately stacked in a first direction, the plurality of gate electrode layers including a first gate electrode layer and a second gate electrode layer, the second gate electrode layer adjacent to the first gate electrode layer in the first direction, and the plurality of insulating layers including a first insulating layer located between the first gate electrode layer and the second gate electrode layer; a semiconductor layer extending in the first direction; a first charge storage layer disposed between the semiconductor layer and the first gate electrode layer, the first charge storage layer including silicon and nitrogen; a second charge storage layer disposed between the semiconductor layer and the second gate electrode layer, the second charge storage layer sandwiching the first insulating layer with the first charge storage layer.
    Type: Application
    Filed: December 12, 2022
    Publication date: April 13, 2023
    Applicant: Kioxia Corporation
    Inventor: Yasuhiro UCHIYAMA
  • Patent number: 11581329
    Abstract: A semiconductor memory device comprises a semiconductor, a first insulator, a second insulator, a first conductor, a third insulator, a fourth insulator, and a fifth insulator. The first insulator is on the semiconductor. The second insulator is on the first insulator. The third insulator is on the first conductor. The fourth insulator is between the second insulator and the first conductor. The fifth insulator is provided between the second insulator and the third insulator. The fifth insulator is having an oxygen concentration different from an oxygen concentration of the fourth insulator.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: February 14, 2023
    Assignee: Kioxia Corporation
    Inventors: Ryosuke Sawabe, Yasuhiro Uchiyama, Hiroshi Itokawa
  • Publication number: 20230017218
    Abstract: A semiconductor device including a first chip and a second chip. The first chip includes: a first substrate; a first transistor that is provided on the first substrate; and a first pad that is provided above the first transistor and that is electrically connected to the first transistor. The second chip includes: a second pad that is provided on the first pad; a second substrate that is provided above the second pad and that includes a first diffusion layer and a second diffusion layer, at least one of the first diffusion layer and the second diffusion layer being electrically connected to the second pad; and an isolation insulating film or an isolation trench that extends at least from an upper surface of the second substrate to a lower surface of the second substrate within the second substrate and that isolates the first diffusion layer from the second diffusion layer.
    Type: Application
    Filed: September 26, 2022
    Publication date: January 19, 2023
    Applicant: Kioxia Corporation
    Inventors: Yasuhiro UCHIYAMA, Shinya ARAI, Koichi SAKATA, Takahiro TOMIMATSU
  • Patent number: 11557602
    Abstract: A semiconductor storage device includes: a stacked body having a plurality of insulating layers and a plurality of gate electrode layers alternately stacked in a first direction, the plurality of gate electrode layers including a first gate electrode layer and a second gate electrode layer, the second gate electrode layer adjacent to the first gate electrode layer in the first direction, and the plurality of insulating layers including a first insulating layer located between the first gate electrode layer and the second gate electrode layer; a semiconductor layer extending in the first direction; a first charge storage layer disposed between the semiconductor layer and the first gate electrode layer, the first charge storage layer including silicon and nitrogen; a second charge storage layer disposed between the semiconductor layer and the second gate electrode layer, the second charge storage layer sandwiching the first insulating layer with the first charge storage layer.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: January 17, 2023
    Assignee: KIOXIA CORPORATION
    Inventor: Yasuhiro Uchiyama
  • Publication number: 20210313335
    Abstract: According to one embodiment, a memory device includes a plurality of first conductors stacked along a first direction; a second, third, and fourth conductor stacked in a same layer above the first conductors; a plurality of fifth conductors stacked along the first direction; a sixth conductor stacked above the fifth conductors; a first semiconductor extending along the first direction between the second conductor and the sixth conductor; a second semiconductor extending along the first direction between the third conductor and the sixth conductor; and a third semiconductor extending along the first direction between the fourth conductor and the sixth conductor.
    Type: Application
    Filed: June 16, 2021
    Publication date: October 7, 2021
    Applicant: Kioxia Corporation
    Inventors: Kana HIRAYAMA, Yasuhiro UCHIYAMA, Keisuke NAKATSUKA
  • Publication number: 20210296354
    Abstract: A semiconductor storage device includes: a stacked body having a plurality of insulating layers and a plurality of gate electrode layers alternately stacked in a first direction, the plurality of gate electrode layers including a first gate electrode layer and a second gate electrode layer, the second gate electrode layer adjacent to the first gate electrode layer in the first direction, and the plurality of insulating layers including a first insulating layer located between the first gate electrode layer and the second gate electrode layer; a semiconductor layer extending in the first direction; a first charge storage layer disposed between the semiconductor layer and the first gate electrode layer, the first charge storage layer including silicon and nitrogen; a second charge storage layer disposed between the semiconductor layer and the second gate electrode layer, the second charge storage layer sandwiching the first insulating layer with the first charge storage layer.
    Type: Application
    Filed: August 31, 2020
    Publication date: September 23, 2021
    Applicant: Kioxia Corporation
    Inventor: Yasuhiro UCHIYAMA
  • Patent number: 11018150
    Abstract: A semiconductor memory device includes a first electrode film, a second electrode film separated from the first electrode film in a first direction, a third electrode film separated from the second electrode film in the first direction, a fourth electrode film separated from the third electrode film in the first direction, and a first and a second semiconductor members extending in the first direction. The second electrode film includes a first conductive portion, an insulating portion, and a second conductive portion arranged along a second direction. The first semiconductor member pierces the first, third and fourth electrode films and the insulating portion of the second electrode film. The second semiconductor member pierces the first, third and fourth electrode films, and the first conductive portion or the second conductive portion of the second electrode film.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: May 25, 2021
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Kotaro Fujii, Yasuhiro Uchiyama, Masaru Kito
  • Patent number: 10991713
    Abstract: According to one embodiment, a semiconductor memory device includes: first and second signal lines; a first memory cell storing first information by applying voltage across the first signal line and a first interconnect layer; a second memory cell storing second information by applying voltage across the second signal line and a second interconnect layer; a first conductive layer provided on the first and second signal lines; third and fourth signal lines provided on the first conductive layer; a third memory cell storing third information by applying voltage across the third signal line and a third interconnect layer; and a fourth memory cell storing fourth information by applying voltage across the fourth signal line and a fourth interconnect layer.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: April 27, 2021
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Satoshi Nagashima, Keisuke Nakatsuka, Fumitaka Arai, Shinya Arai, Yasuhiro Uchiyama
  • Patent number: 10971515
    Abstract: A semiconductor memory device includes: a first conductive layer and a first insulating layer extending in a first direction, these layers being arranged in a second direction intersecting the first direction; a first semiconductor layer opposed to the first conductive layer, and extending in a third direction intersecting the first and second directions; a second semiconductor layer opposed to the first conductive layer, extending in the third direction; a first contact electrode connected to the first semiconductor layer; and a second contact electrode connected to the second semiconductor layer. In a first cross section extending in the first and second directions, an entire outer peripheral surface of the first semiconductor layer is surrounded by the first conductive layer, and an outer peripheral surface of the second semiconductor layer is surrounded by the first conductive layer and the first insulating layer.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: April 6, 2021
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Shigeki Kobayashi, Masaru Kito, Yasuhiro Uchiyama
  • Publication number: 20210082877
    Abstract: According to one embodiment, a semiconductor device includes a substrate, a logic circuit provided on the substrate, and a memory cell array provided over the logic circuit that includes a plurality of electrode layers stacked on top of one another and a semiconductor layer provided over the plurality of electrode layers. The semiconductor device further includes a first plug and a second plug provided above the logic circuit and electrically connected to the logic circuit, a bonding pad provided on the first plug, and a metallic wiring layer provided on the memory cell array, electrically connected to the semiconductor layer, and electrically connected to the second plug.
    Type: Application
    Filed: February 27, 2020
    Publication date: March 18, 2021
    Applicant: KIOXIA CORPORATION
    Inventor: Yasuhiro UCHIYAMA
  • Publication number: 20210057446
    Abstract: A semiconductor memory device comprises a semiconductor, a first insulator, a second insulator, a first conductor, a third insulator, a fourth insulator, and a fifth insulator. The first insulator is on the semiconductor. The second insulator is on the first insulator. The third insulator is on the first conductor. The fourth insulator is between the second insulator and the first conductor. The fifth insulator is provided between the second insulator and the third insulator. The fifth insulator is having an oxygen concentration different from an oxygen concentration of the fourth insulator.
    Type: Application
    Filed: August 21, 2020
    Publication date: February 25, 2021
    Applicant: Kioxia Corporation
    Inventors: Ryosuke SAWABE, Yasuhiro UCHIYAMA, Hiroshi ITOKAWA
  • Publication number: 20200286990
    Abstract: A semiconductor device including a first chip and a second chip. The first chip includes: a first substrate; a first transistor that is provided on the first substrate; and a first pad that is provided above the first transistor and that is electrically connected to the first transistor. The second chip includes: a second pad that is provided on the first pad; a second substrate that is provided above the second pad and that includes a first diffusion layer and a second diffusion layer, at least one of the first diffusion layer and the second diffusion layer being electrically connected to the second pad; and an isolation insulating film or an isolation trench that extends at least from an upper surface of the second substrate to a lower surface of the second substrate within the second substrate and that isolates the first diffusion layer from the second diffusion layer.
    Type: Application
    Filed: July 12, 2019
    Publication date: September 10, 2020
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Yasuhiro UCHIYAMA, Shinya ARAI, Koichi SAKATA, Takahiro TOMIMATSU
  • Patent number: 10692883
    Abstract: A semiconductor memory device includes a substrate; a stacked body on the substrate and including a first stacked body formed of stacked first electrode layers and a second stacked body on the first stacked body and including a second electrode layer; a hole passing through the stacked bodies in a first direction and having a first insulator, and a channel film between the first insulator and first electrode layers and between the first insulator and second electrode layer and having first and second portions facing each other, with the first insulator placed therebetween. A first memory between the first electrode layers and the first portion and a second memory between the first electrode layers and the second portion are insulated. A third memory between the second electrode layer and the first portion and a fourth memory between the second electrode layer and the second portion are connected.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: June 23, 2020
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventor: Yasuhiro Uchiyama
  • Publication number: 20200075625
    Abstract: A semiconductor memory device includes: a first conductive layer and a first insulating layer extending in a first direction, these layers being arranged in a second direction intersecting the first direction; a first semiconductor layer opposed to the first conductive layer, and extending in a third direction intersecting the first and second directions; a second semiconductor layer opposed to the first conductive layer, extending in the third direction; a first contact electrode connected to the first semiconductor layer; and a second contact electrode connected to the second semiconductor layer. In a first cross section extending in the first and second directions, an entire outer peripheral surface of the first semiconductor layer is surrounded by the first conductive layer, and an outer peripheral surface of the second semiconductor layer is surrounded by the first conductive layer and the first insulating layer.
    Type: Application
    Filed: March 6, 2019
    Publication date: March 5, 2020
    Applicant: Toshiba Memory Corporation
    Inventors: Shigeki KOBAYASHI, Masaru KITO, Yasuhiro UCHIYAMA