Patents by Inventor Tsuyoshi Sugisaki

Tsuyoshi Sugisaki 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: 20240032297
    Abstract: According to one embodiment, a semiconductor memory device includes a plurality of first interconnect layers, first and second memory pillars, and a plurality of first plugs. The plurality of first interconnect layers include a first array region where the first memory pillar penetrates the plurality of first interconnect layers, a second array region where the second memory pillar penetrates the plurality of first interconnect layers, and a coupling region where a plurality of coupling parts respectively coupled to the plurality of first plugs are formed. Along a first direction parallel to the semiconductor substrate, the first array region, the coupling region, and the second array region are arranged in order.
    Type: Application
    Filed: September 27, 2023
    Publication date: January 25, 2024
    Applicant: KIOXIA CORPORATION
    Inventors: Go OIKE, Tsuyoshi SUGISAKI
  • Publication number: 20230402322
    Abstract: A semiconductor device according to an embodiment includes a first conductor, a first oxide semiconductor, a first insulator, a second conductor, a third conductor, and a fourth conductor. The first oxide semiconductor contacts, at one end, the first conductor, and extends in a first direction intersecting a surface of the first conductor. The first insulator surrounds a side surface of the first oxide semiconductor. The second conductor and the first oxide semiconductor interpose the first insulator therebetween. The third conductor contacts another end of the first oxide semiconductor. The fourth conductor extends in a second direction intersecting the first direction, and contacts a second conductor on a side opposite to the first insulator. The second conductor is of a material with a higher work function than a material of the fourth conductor.
    Type: Application
    Filed: March 13, 2023
    Publication date: December 14, 2023
    Applicant: Kioxia Corporation
    Inventors: Shoichi Kabuyanagi, Tsuyoshi Sugisaki, Shosuke Fujii
  • Patent number: 11818890
    Abstract: According to one embodiment, a semiconductor memory device includes a plurality of first interconnect layers, first and second memory pillars, and a plurality of first plugs. The plurality of first interconnect layers include a first array region where the first memory pillar penetrates the plurality of first interconnect layers, a second array region where the second memory pillar penetrates the plurality of first interconnect layers, and a coupling region where a plurality of coupling parts respectively coupled to the plurality of first plugs are formed. Along a first direction parallel to the semiconductor substrate, the first array region, the coupling region, and the second array region are arranged in order.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: November 14, 2023
    Assignee: KIOXIA CORPORATION
    Inventors: Go Oike, Tsuyoshi Sugisaki
  • Patent number: 11729975
    Abstract: A semiconductor memory includes a stack section comprising a first area including a plurality of first conductors and a plurality of first insulators alternately stacked in a first direction and memory cells, and a second area including respective end portions of the plurality of stacked first conductors and the plurality of stacked first insulators, a plurality of contact plugs respectively reaching the plurality of first conductors in the second area, first and second supporting portions configured respectively to pass through the stack section in the first direction and arranged in a second direction, which crosses the first direction, in the second area, and a layer between respective adjacent first insulators, among the plurality of first insulators that are stacked, between the first supporting portion and the second supporting portion, wherein the layer is made of a material that is different from that of the first conductors.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: August 15, 2023
    Assignee: Kioxia Corporation
    Inventor: Tsuyoshi Sugisaki
  • Publication number: 20220157851
    Abstract: According to one embodiment, a semiconductor memory device includes a plurality of first interconnect layers, first and second memory pillars, and a plurality of first plugs. The plurality of first interconnect layers include a first array region where the first memory pillar penetrates the plurality of first interconnect layers, a second array region where the second memory pillar penetrates the plurality of first interconnect layers, and a coupling region where a plurality of coupling parts respectively coupled to the plurality of first plugs are formed. Along a first direction parallel to the semiconductor substrate, the first array region, the coupling region, and the second array region are arranged in order.
    Type: Application
    Filed: February 7, 2022
    Publication date: May 19, 2022
    Applicant: KIOXIA CORPORATION
    Inventors: Go OIKE, Tsuyoshi SUGISAKI
  • Patent number: 11282858
    Abstract: According to one embodiment, a semiconductor memory device includes a plurality of first interconnect layers, first and second memory pillars, and a plurality of first plugs. The plurality of first interconnect layers include a first array region where the first memory pillar penetrates the plurality of first interconnect layers, a second array region where the second memory pillar penetrates the plurality of first interconnect layers, and a coupling region where a plurality of coupling parts respectively coupled to the plurality of first plugs are formed. Along a first direction parallel to the semiconductor substrate, the first array region, the coupling region, and the second array region are arranged in order.
    Type: Grant
    Filed: November 3, 2020
    Date of Patent: March 22, 2022
    Assignee: KIOXIA CORPORATION
    Inventors: Go Oike, Tsuyoshi Sugisaki
  • Publication number: 20210217774
    Abstract: A semiconductor memory includes a stack section comprising a first area including a plurality of first conductors and a plurality of first insulators alternately stacked in a first direction and memory cells, and a second area including respective end portions of the plurality of stacked first conductors and the plurality of stacked first insulators, a plurality of contact plugs respectively reaching the plurality of first conductors in the second area, first and second supporting portions configured respectively to pass through the stack section in the first direction and arranged in a second direction, which crosses the first direction, in the second area, and a layer between respective adjacent first insulators, among the plurality of first insulators that are stacked, between the first supporting portion and the second supporting portion, wherein the layer is made of a material that is different from that of the first conductors.
    Type: Application
    Filed: April 1, 2021
    Publication date: July 15, 2021
    Inventor: Tsuyoshi SUGISAKI
  • Patent number: 11049870
    Abstract: According to one embodiment, a semiconductor memory device includes a semiconductor substrate, a memory cell array, first circuitry and a via. The semiconductor substrate includes a first main surface and a second main surface opposite the first main surface. The memory cell array is provided on the first main surface. The memory cell array includes stacked memory cells. The first circuitry is provided on the second main surface. The first circuitry is configured to operate the memory cells. The via penetrates through the semiconductor substrate. The via provides electrical connection between the memory cells and the first circuitry.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: June 29, 2021
    Assignee: Toshiba Memory Corporation
    Inventor: Tsuyoshi Sugisaki
  • Patent number: 10998332
    Abstract: A semiconductor memory includes a stack section comprising a first area including a plurality of first conductors and a plurality of first insulators alternately stacked in a first direction and memory cells, and a second area including respective end portions of the plurality of stacked first conductors and the plurality of stacked first insulators, a plurality of contact plugs respectively reaching the plurality of first conductors in the second area, first and second supporting portions configured respectively to pass through the stack section in the first direction and arranged in a second direction, which crosses the first direction, in the second area, and a layer between respective adjacent first insulators, among the plurality of first insulators that are stacked, between the first supporting portion and the second supporting portion, wherein the layer is made of a material that is different from that of the first conductors.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: May 4, 2021
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventor: Tsuyoshi Sugisaki
  • Publication number: 20210050370
    Abstract: According to one embodiment, a semiconductor memory device includes a plurality of first interconnect layers, first and second memory pillars, and a plurality of first plugs. The plurality of first interconnect layers include a first array region where the first memory pillar penetrates the plurality of first interconnect layers, a second array region where the second memory pillar penetrates the plurality of first interconnect layers, and a coupling region where a plurality of coupling parts respectively coupled to the plurality of first plugs are formed. Along a first direction parallel to the semiconductor substrate, the first array region, the coupling region, and the second array region are arranged in order.
    Type: Application
    Filed: November 3, 2020
    Publication date: February 18, 2021
    Applicant: Toshiba Memory Corporation
    Inventors: Go OIKE, Tsuyoshi SUGISAKI
  • Patent number: 10861875
    Abstract: According to one embodiment, a semiconductor memory device includes a plurality of first interconnect layers, first and second memory pillars, and a plurality of first plugs. The plurality of first interconnect layers include a first array region where the first memory pillar penetrates the plurality of first interconnect layers, a second array region where the second memory pillar penetrates the plurality of first interconnect layers, and a coupling region where a plurality of coupling parts respectively coupled to the plurality of first plugs are formed. Along a first direction parallel to the semiconductor substrate, the first array region, the coupling region, and the second array region are arranged in order.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: December 8, 2020
    Assignee: Toshiba Memory Corporation
    Inventors: Go Oike, Tsuyoshi Sugisaki
  • Patent number: 10763277
    Abstract: According to one embodiment, a semiconductor memory device includes a plurality of first interconnect layers, first and second memory pillars, and a plurality of first plugs. The plurality of first interconnect layers include a first array region where the first memory pillar penetrates the plurality of first interconnect layers, a second array region where the second memory pillar penetrates the plurality of first interconnect layers, and a coupling region where a plurality of coupling parts respectively coupled to the plurality of first plugs are formed. Along a first direction parallel to the semiconductor substrate, the first array region, the coupling region, and the second array region are arranged in order.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: September 1, 2020
    Assignee: Toshiba Memory Corporation
    Inventors: Go Oike, Tsuyoshi Sugisaki
  • Publication number: 20200161333
    Abstract: According to one embodiment, a semiconductor memory device includes a plurality of first interconnect layers, first and second memory pillars, and a plurality of first plugs. The plurality of first interconnect layers include a first array region where the first memory pillar penetrates the plurality of first interconnect layers, a second array region where the second memory pillar penetrates the plurality of first interconnect layers, and a coupling region where a plurality of coupling parts respectively coupled to the plurality of first plugs are formed. Along a first direction parallel to the semiconductor substrate, the first array region, the coupling region, and the second array region are arranged in order.
    Type: Application
    Filed: January 24, 2020
    Publication date: May 21, 2020
    Applicant: Toshiba Memory Corporation
    Inventors: Go OIKE, Tsuyoshi SUGISAKI
  • Publication number: 20200098776
    Abstract: According to one embodiment, a semiconductor memory device includes a semiconductor substrate, a memory cell array, first circuitry and a via. The semiconductor substrate includes a first main surface and a second main surface opposite the first main surface. The memory cell array is provided on the first main surface. The memory cell array includes stacked memory cells. The first circuitry is provided on the second main surface. The first circuitry is configured to operate the memory cells. The via penetrates through the semiconductor substrate. The via provides electrical connection between the memory cells and the first circuitry.
    Type: Application
    Filed: March 11, 2019
    Publication date: March 26, 2020
    Applicant: Toshiba Memory Corporation
    Inventor: Tsuyoshi SUGISAKI
  • Publication number: 20190287990
    Abstract: A semiconductor memory includes a stack section comprising a first area including a plurality of first conductors and a plurality of first insulators alternately stacked in a first direction and memory cells, and a second area including respective end portions of the plurality of stacked first conductors and the plurality of stacked first insulators, a plurality of contact plugs respectively reaching the plurality of first conductors in the second area, first and second supporting portions configured respectively to pass through the stack section in the first direction and arranged in a second direction, which crosses the first direction, in the second area, and a layer between respective adjacent first insulators, among the plurality of first insulators that are stacked, between the first supporting portion and the second supporting portion, wherein the layer is made of a material that is different from that of the first conductors.
    Type: Application
    Filed: August 22, 2018
    Publication date: September 19, 2019
    Inventor: Tsuyoshi SUGISAKI
  • Publication number: 20190287995
    Abstract: According to one embodiment, a semiconductor memory device includes a plurality of first interconnect layers, first and second memory pillars, and a plurality of first plugs. The plurality of first interconnect layers include a first array region where the first memory pillar penetrates the plurality of first interconnect layers, a second array region where the second memory pillar penetrates the plurality of first interconnect layers, and a coupling region where a plurality of coupling parts respectively coupled to the plurality of first plugs are formed. Along a first direction parallel to the semiconductor substrate, the first array region, the coupling region, and the second array region are arranged in order.
    Type: Application
    Filed: August 31, 2018
    Publication date: September 19, 2019
    Applicant: Toshiba Memory Corporation
    Inventors: Go Oike, Tsuyoshi Sugisaki
  • Patent number: 10381081
    Abstract: A memory device includes first and second electrode layers, first and second semiconductor pillars, an interconnect, and a first connecting conductor. The first and second electrode layers are stacked in a first direction. The second electrode layers are positioned in the first direction when viewed from the first electrode layers. The first semiconductor pillar extends in the first direction through the first electrode layers. The second semiconductor pillar extends in the first direction through the second electrode layers. The interconnect is provided between the first and second electrode layers, and is electrically connected to the first and second semiconductor pillars. The first connecting conductor extends in the first direction, is connected to one of the first electrode layers and one of the second electrode layers. The first connecting conductor extends in the first direction, and crosses at least one of the second electrode layers.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: August 13, 2019
    Assignee: Toshiba Memory Corporation
    Inventors: Tsuyoshi Sugisaki, Yasuhito Nakajima
  • Publication number: 20190080764
    Abstract: A memory device includes first and second electrode layers, first and second semiconductor pillars, an interconnect, and a first connecting conductor. The first and second electrode layers are stacked in a first direction. The second electrode layers are positioned in the first direction when viewed from the first electrode layers. The first semiconductor pillar extends in the first direction through the first electrode layers. The second semiconductor pillar extends in the first direction through the second electrode layers. The interconnect is provided between the first and second electrode layers, and is electrically connected to the first and second semiconductor pillars. The first connecting conductor extends in the first direction, is connected to one of the first electrode layers and one of the second electrode layers. The first connecting conductor extends in the first direction, and crosses at least one of the second electrode layers.
    Type: Application
    Filed: March 13, 2018
    Publication date: March 14, 2019
    Applicant: Toshiba Memory Corporation
    Inventors: Tsuyoshi Sugisaki, Yasuhito Nakajima
  • Patent number: 8258600
    Abstract: A semiconductor device includes a capacitor element including a first comb-shaped interconnection formed over a substrate and including a first comb tooth, a second comb-shaped interconnection formed over the substrate and including a second comb tooth opposed to the first comb tooth, and a first electrode and a second electrode opposed to each other with opposed surfaces of the first electrode and the second electrode intersecting a longitudinal direction of the first comb tooth and the second comb tooth, a first dielectric layer formed between the first electrode and the second electrode, the first electrode being connected to the first comb tooth, and the second electrode being connected to the second comb tooth.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: September 4, 2012
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Tsuyoshi Sugisaki, Hajime Kurata
  • Publication number: 20120119326
    Abstract: A capacitor includes first electrode patterns and second electrode patterns disposed alternately on a plane, each of the first electrode patterns having a linear shape and extending in a first direction from a first end to a third end with a first length, each of the second electrodes having a linear shape and extending in said first direction from a second end to a fourth end with a second length shorter than the first length, a first wiring pattern supplying a first voltage to the first electrode patterns by first via-plugs, and a second wiring pattern supplying a second voltage to the second electrode patterns by second via-plugs, wherein the first end of the first electrode pattern extends beyond the second end of the second electrode pattern and the third end of the first electrode pattern extends beyond the fourth end of said the electrode.
    Type: Application
    Filed: August 11, 2011
    Publication date: May 17, 2012
    Applicant: FUJITSU SEMICONDUCTOR LIMITED
    Inventors: Tsuyoshi Sugisaki, Masatoshi Fukuda