Patents by Inventor Nobuyuki Momo

Nobuyuki Momo 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: 11942431
    Abstract: According to one embodiment, a semiconductor device includes a first semiconductor chip including a first metal pad and a second metal pad; and a second semiconductor chip including a third metal pad and a fourth metal pad, the third metal pad joined to the first metal pad, the fourth metal pad coupled to the second metal pad via a dielectric layer, wherein the second semiconductor chip is coupled to the first semiconductor chip via the first metal pad and the third metal pad.
    Type: Grant
    Filed: July 27, 2022
    Date of Patent: March 26, 2024
    Assignee: KIOXIA CORPORATION
    Inventors: Nobuyuki Momo, Keisuke Nakatsuka
  • Publication number: 20240071477
    Abstract: A memory system for speeding up a read operation in the memory system includes a first pillar, a first string including a first transistor and a first memory cell, a second string including a second transistor and a second memory cell, a first bit line, a first gate line, a first word line, a second gate line, a second word line and a control circuit. When the control circuit executes a read operation with respect to the first memory cell, the control circuit is configured to apply a read voltage to the first word line, apply a voltage turning off the second memory cell regardless of an electric charge stored in the second memory cell to the second word line, apply a voltage turning on the first transistor to the first gate line, and apply a voltage turning on the second transistor to the second gate line.
    Type: Application
    Filed: November 2, 2023
    Publication date: February 29, 2024
    Applicant: Kioxia Corporation
    Inventors: Kazutaka IKEGAMI, Rieko FUNATSUKI, Nobuyuki MOMO, Hidehiro SHIGA
  • Patent number: 11706921
    Abstract: A semiconductor storage device includes a substrate, a first wiring, a second wiring, a third wiring, a fourth wiring, a charge storage unit. The first wiring extends in a first direction along a surface of the substrate. The second wiring is aligned with the first wiring in a second direction intersecting with the first direction and extends in the first direction. The third wiring is in contact with the first wiring and the second wiring and includes a semiconductor. The fourth wiring is located between the first wiring and the second wiring, extends in a third direction intersecting with the first direction and the second direction, and is aligned with the third wiring in at least the first direction. The charge storage unit is located between the third wiring and the fourth wiring.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: July 18, 2023
    Assignee: KIOXIA CORPORATION
    Inventors: Yosuke Murakami, Satoshi Nagashima, Nobuyuki Momo, Takayuki Ishikawa, Yusuke Arayashiki
  • Publication number: 20220367371
    Abstract: According to one embodiment, a semiconductor device includes a first semiconductor chip including a first metal pad and a second metal pad; and a second semiconductor chip including a third metal pad and a fourth metal pad, the third metal pad joined to the first metal pad, the fourth metal pad coupled to the second metal pad via a dielectric layer, wherein the second semiconductor chip is coupled to the first semiconductor chip via the first metal pad and the third metal pad.
    Type: Application
    Filed: July 27, 2022
    Publication date: November 17, 2022
    Applicant: KIOXIA CORPORATION
    Inventors: Nobuyuki MOMO, Keisuke NAKATSUKA
  • Patent number: 11437324
    Abstract: According to one embodiment, a semiconductor device includes a first semiconductor chip including a first metal pad and a second metal pad; and a second semiconductor chip including a third metal pad and a fourth metal pad, the third metal pad joined to the first metal pad, the fourth metal pad coupled to the second metal pad via a dielectric layer, wherein the second semiconductor chip is coupled to the first semiconductor chip via the first metal pad and the third metal pad.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: September 6, 2022
    Assignee: KIOXIA CORPORATION
    Inventors: Nobuyuki Momo, Keisuke Nakatsuka
  • Publication number: 20220085058
    Abstract: A semiconductor storage device includes a substrate, a first wiring, a second wiring, a third wiring, a fourth wiring, a charge storage unit. The first wiring extends in a first direction along a surface of the substrate. The second wiring is aligned with the first wiring in a second direction intersecting with the first direction and extends in the first direction. The third wiring is in contact with the first wiring and the second wiring and includes a semiconductor. The fourth wiring is located between the first wiring and the second wiring, extends in a third direction intersecting with the first direction and the second direction, and is aligned with the third wiring in at least the first direction. The charge storage unit is located between the third wiring and the fourth wiring.
    Type: Application
    Filed: March 3, 2021
    Publication date: March 17, 2022
    Inventors: Yosuke MURAKAMI, Satoshi NAGASHIMA, Nobuyuki MOMO, Takayuki ISHIKAWA, Yusuke ARAYASHIKI
  • Patent number: 11227832
    Abstract: According to one embodiment, a semiconductor memory device includes: a first semiconductor layer including first to third portions which are arranged along a first direction and differ in position from one another in a second direction; a conductive layer including a fourth portion extending in the second direction and a fifth portion extending in the first direction; a first insulating layer between the fourth portion and the first semiconductor layer and between the fifth portion and the first semiconductor layer; a first contact plug coupled to the fourth portion; a second contact plug coupled to the first semiconductor layer in a region where the first insulating layer is formed; a first interconnect; and a first memory cell apart from the fifth portion in the first direction and storing information between the semiconductor layer and the first interconnect.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: January 18, 2022
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Keiji Hosotani, Fumitaka Arai, Keisuke Nakatsuka, Nobuyuki Momo, Motohiko Fujimatsu
  • Patent number: 11074944
    Abstract: According to one embodiment, a semiconductor memory device includes: first to fifth interconnects; a semiconductor layer having one end located between the fourth interconnect and the fifth interconnect and other end connected to the first interconnect; a memory cell; a conductive layer having one end connected to the second interconnect and other end connected to the semiconductor layer; a first insulating layer provided to extend between the third and fourth interconnects and the semiconductor layer, and between the fifth interconnect and the conductive layer; an oxide semiconductor layer provided to extend between the fourth and fifth interconnects and the first insulating layer; and a second insulating layer provided to extend between the fourth and fifth interconnects and the oxide semiconductor layer.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: July 27, 2021
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Fumitaka Arai, Keiji Hosotani, Nobuyuki Momo
  • Publication number: 20210082823
    Abstract: According to one embodiment, a semiconductor device includes a first semiconductor chip including a first metal pad and a second metal pad; and a second semiconductor chip including a third metal pad and a fourth metal pad, the third metal pad joined to the first metal pad, the fourth metal pad coupled to the second metal pad via a dielectric layer, wherein the second semiconductor chip is coupled to the first semiconductor chip via the first metal pad and the third metal pad.
    Type: Application
    Filed: March 3, 2020
    Publication date: March 18, 2021
    Applicant: KIOXIA CORPORATION
    Inventors: Nobuyuki MOMO, Keisuke NAKATSUKA
  • Patent number: 10868037
    Abstract: According to one embodiment, a semiconductor memory device includes: a first interconnecting layer; a first signal line; a first memory cell that stores first information between the first interconnecting layer and the first signal line; second to fourth interconnecting layers provided above the first interconnecting layer; fifth to seventh interconnecting layers disposed apart from the second to fourth interconnecting layers; a second signal line coupled to the first signal line; a third signal line coupled to the first and second signal lines and the sixth interconnecting layer; and, first to fifth transistors.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: December 15, 2020
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Fumitaka Arai, Masakazu Goto, Masaki Kondo, Keiji Hosotani, Nobuyuki Momo
  • Publication number: 20200303400
    Abstract: According to one embodiment, a semiconductor memory device includes: a first interconnecting layer; a first signal line; a first memory cell that stores first information between the first interconnecting layer and the first signal line; second to fourth interconnecting layers provided above the first interconnecting layer; fifth to seventh interconnecting layers disposed apart from the second to fourth interconnecting layers; a second signal line coupled to the first signal line; a third signal line coupled to the first and second signal lines and the sixth interconnecting layer; and, first to fifth transistors.
    Type: Application
    Filed: July 3, 2019
    Publication date: September 24, 2020
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Fumitaka ARAI, Masakazu GOTO, Masaki KONDO, Keiji HOSOTANI, Nobuyuki MOMO
  • Publication number: 20200286828
    Abstract: According to one embodiment, a semiconductor memory device includes: a first semiconductor layer including first to third portions which are arranged along a first direction and differ in position from one another in a second direction; a conductive layer including a fourth portion extending in the second direction and a fifth portion extending in the first direction; a first insulating layer between the fourth portion and the first semiconductor layer and between the fifth portion and the first semiconductor layer; a first contact plug coupled to the fourth portion; a second contact plug coupled to the first semiconductor layer in a region where the first insulating layer is formed; a first interconnect; and a first memory cell apart from the fifth portion in the first direction and storing information between the semiconductor layer and the first interconnect.
    Type: Application
    Filed: September 9, 2019
    Publication date: September 10, 2020
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Keiji HOSOTANI, Fumitaka ARAI, Keisuke NAKATSUKA, Nobuyuki MOMO, Motohiko FUJIMATSU
  • Patent number: 10734449
    Abstract: A storage device includes: a substrate; a first conductive layer extending in a first direction; a second conductive layer adjacent to the first conductive layer in a second direction, and extending in the first direction; a third conductive layer extending in a third direction; a fourth conductive layer extending in the second direction; a fifth conductive layer disposed on the second conductive layer, extending in the third direction, and being electrically connected to the fourth conductive layer; a first storage layer disposed between the third conductive layer and the fourth conductive layer; a first semiconductor layer disposed between the first conductive layer and the third conductive layer; a second semiconductor layer disposed between the second conductive layer and the fifth conductive layer; and a first gate electrode extending in the second direction and being shared by side surfaces of the first semiconductor layer and the second semiconductor layer.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: August 4, 2020
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Yusuke Arayashiki, Nobuyuki Momo, Motohiko Fujimatsu, Akira Hokazono
  • Publication number: 20200135242
    Abstract: According to one embodiment, a semiconductor memory device includes: first to fifth interconnects; a semiconductor layer having one end located between the fourth interconnect and the fifth interconnect and other end connected to the first interconnect; a memory cell; a conductive layer having one end connected to the second interconnect and other end connected to the semiconductor layer; a first insulating layer provided to extend between the third and fourth interconnects and the semiconductor layer, and between the fifth interconnect and the conductive layer; an oxide semiconductor layer provided to extend between the fourth and fifth interconnects and the first insulating layer; and a second insulating layer provided to extend between the fourth and fifth interconnects and the oxide semiconductor layer.
    Type: Application
    Filed: July 3, 2019
    Publication date: April 30, 2020
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Fumitaka ARAI, Keiji HOSOTANI, Nobuyuki MOMO
  • Publication number: 20200098829
    Abstract: A storage device includes: a substrate; a first conductive layer extending in a first direction; a second conductive layer adjacent to the first conductive layer in a second direction, and extending in the first direction; a third conductive layer extending in a third direction; a fourth conductive layer extending in the second direction; a fifth conductive layer disposed on the second conductive layer, extending in the third direction, and being electrically connected to the fourth conductive layer; a first storage layer disposed between the third conductive layer and the fourth conductive layer; a first semiconductor layer disposed between the first conductive layer and the third conductive layer; a second semiconductor layer disposed between the second conductive layer and the fifth conductive layer; and a first gate electrode extending in the second direction and being shared by side surfaces of the first semiconductor layer and the second semiconductor layer.
    Type: Application
    Filed: February 28, 2019
    Publication date: March 26, 2020
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Yusuke ARAYASHIKI, Nobuyuki MOMO, Motohiko FUJIMATSU, Akira HOKAZONO
  • Publication number: 20180277598
    Abstract: A semiconductor device includes a semiconductor pillar and a control electrode. The semiconductor pillar extends in a first direction, and includes a first region, a second region and an intermediate region provided along the first direction. The intermediate region is positioned between the first region and the second region. The control electrode is disposed at a position so that the control electrode faces the intermediate region via an insulating film. The semiconductor pillar is provided so that a minimum width of the intermediate region in a second direction perpendicular to the first direction is narrower than a first width of the first region in the second direction and a second width of the second region in the second direction.
    Type: Application
    Filed: September 14, 2017
    Publication date: September 27, 2018
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Minoru ODA, Akira YOTSUMOTO, Nobuyuki MOMO, Kotaro NODA
  • Patent number: 8941158
    Abstract: Certain embodiments provide a solid-state imaging device including: a semiconductor substrate of a first conductivity type having a first face and a second face that is the opposite side from the first face; a plurality of pixels provided on the first face of the semiconductor substrate, each of the pixels including a semiconductor region of a second conductivity type that converts incident light into signal charges, and stores the signal charges; a readout circuit provided on the second face of the semiconductor substrate to read the signal charges stored in the pixels; an ultrafine metal structure placed at intervals on a face on a side of the semiconductor region, the light being incident on the face; and an insulating layer provided between the ultrafine metal structure and the semiconductor region.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: January 27, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoshinori Iida, Eishi Tsutsumi, Akira Fujimoto, Koji Asakawa, Hisayo Momose, Koichi Kokubun, Nobuyuki Momo
  • Publication number: 20110220976
    Abstract: Certain embodiments provide a solid-state imaging device including: a semiconductor substrate of a first conductivity type having a first face and a second face that is the opposite side from the first face; a plurality of pixels provided on the first face of the semiconductor substrate, each of the pixels including a semiconductor region of a second conductivity type that converts incident light into signal charges, and stores the signal charges; a readout circuit provided on the second face of the semiconductor substrate to read the signal charges stored in the pixels; an ultrafine metal structure placed at intervals on a face on a side of the semiconductor region, the light being incident on the face; and an insulating layer provided between the ultrafine metal structure and the semiconductor region.
    Type: Application
    Filed: September 3, 2010
    Publication date: September 15, 2011
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Yoshinori IIDA, Eishi Tsutsumi, Akira Fujimoto, Koji Asakawa, Hisayo Momose, Koichi Kokubun, Nobuyuki Momo
  • Publication number: 20110049584
    Abstract: According to one embodiment, a semiconductor device, may include a semiconductor substrate including a first semiconductor layer of a first conductivity type and a second semiconductor layer of a second conductivity type different from the first conductivity type, the first semiconductor having a resistance value in a range from 100 ?·cm to 10000 ?·cm, the second semiconductor layer having a resistance value in a range from 100 ?·cm to 10000 ?·cm, the second semiconductor layer provided on the first semiconductor layer, a first region being formed in the second semiconductor layer and including a first conductivity type of well region and a second conductivity type of well region, a first insulating layer formed on the second semiconductor layer; and a wiring layer located in a second region different from the first region and constituting a passive device insulated by the first insulating layer, wherein no well region is formed in the second semiconductor layer located in the second region.
    Type: Application
    Filed: July 29, 2010
    Publication date: March 3, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Nobuyuki Momo