Patents by Inventor Shinya Arai

Shinya Arai 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: 11063064
    Abstract: A semiconductor memory device includes a connecting member including a semiconductor material, a first electrode film, a first insulating film, a stacked body and three or more semiconductor pillars. The stacked body includes second electrode films and second insulating films that alternately stacked. The semiconductor pillars are arrayed along two or more directions, extend in a stacking direction, pierce through the stacked body and the first insulating film, and are connected to the connecting member. The device includes a third insulating film provided between the semiconductor pillars and the stacked body and between the connecting member and the first electrode film. A charge storage layer is provided at least between one of the second electrode films and the third insulating film.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: July 13, 2021
    Assignee: Toshiba Memory Corporation
    Inventors: Yoshiaki Fukuzumi, Shinya Arai, Masaki Tsuji, Hideaki Aochi, Hiroyasu Tanaka
  • Patent number: 11063062
    Abstract: In one embodiment, a semiconductor device includes a first chip and a second chip. The first chip includes a first substrate, a control circuit provided on the first substrate, and a first pad provided above the control circuit and electrically connected to the control circuit. The second chip includes a second pad provided on the first pad, a plug provided above the second pad, extending in a first direction, and including a portion that decreases in diameter in a cross-section perpendicular to the first direction with increasing distance from the first substrate, and a bonding pad provided on the plug, intersecting with the first direction, and electrically connected to the second pad by the plug.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: July 13, 2021
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Jun Iijima, Masayoshi Tagami, Shinya Arai, Takahiro Tomimatsu
  • Publication number: 20210210508
    Abstract: A semiconductor memory device according to an embodiment comprises: a semiconductor substrate; a stacked body having a plurality of first insulating layers and conductive layers stacked alternately on the semiconductor substrate; a columnar semiconductor layer contacting the semiconductor substrate in the stacked body being provided extending in a stacking direction of the stacked body and including a first portion and a second portion which is provided above the first portion; a memory layer provided on a side surface of the columnar semiconductor layer facing the stacked conductive layers and extending along the columnar semiconductor layer; and a second insulating layer provided between one of the first insulating layer and the conductive layers of the stacked body.
    Type: Application
    Filed: March 19, 2021
    Publication date: July 8, 2021
    Applicant: Toshiba Memory Corporation
    Inventor: Shinya ARAI
  • Publication number: 20210202523
    Abstract: According to one embodiment, a source layer includes a semiconductor layer including an impurity. A stacked body includes a plurality of electrode layers stacked with an insulator interposed. A gate layer is provided between the source layer and the stacked body. The gate layer is thicker than a thickness of one layer of the electrode layers. A semiconductor body extends in a stacking direction of the stacked body through the stacked body and the gate layer. The semiconductor body further extends in the semiconductor layer where a side wall portion of the semiconductor body contacts the semiconductor layer. The semiconductor body does not contact the electrode layers and the gate layer.
    Type: Application
    Filed: March 15, 2021
    Publication date: July 1, 2021
    Applicant: Toshiba Memory Corporation
    Inventor: Shinya ARAI
  • Patent number: 11049878
    Abstract: A semiconductor memory device includes a semiconductor substrate including a diode formed in an upper layer portion of the semiconductor substrate, a first insulating film provided above the semiconductor substrate, a first conductive film provided above the first insulating film and coupled to the diode, a stacked body provided above the first conductive film, an insulator and an electrode film being stacked alternately in the stacked body, a semiconductor member piercing the stacked body and being connected to the first conductive film, and a charge storage member provided between the electrode film and the semiconductor member.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: June 29, 2021
    Assignee: Toshiba Memory Corporation
    Inventors: Jun Fujiki, Shinya Arai, Kotaro Fujii
  • Publication number: 20210153687
    Abstract: A coffee machine 1 supplies milk into a cup placed at a cup station from a milk nozzle 25, a distal end of which is disposed above the cup, in which the distal end of the milk nozzle 25 is provided so as to be movable between a supply position above the cup and a standby position in which the distal end of the nozzle is retracted from above the cup, in a vertical position between the cup placed at the cup station and the milk nozzle 25, a nozzle lower tray 20 is provided which includes a tray part 20a that is provided below the distal end of the milk nozzle 25 at least when the milk nozzle 25 is positioned at the standby position and which receives a liquid dropped from the milk nozzle 25 positioned at the standby position.
    Type: Application
    Filed: April 23, 2018
    Publication date: May 27, 2021
    Inventors: Shinya ARAI, Takaya TSUNODA
  • Publication number: 20210126003
    Abstract: A semiconductor memory device includes a semiconductor substrate, a first insulating film provided above the semiconductor substrate, a first conductive film provided above the first insulating film, a plurality of first electrode films provided above the first conductive film and stacked to be separated from each other, a semiconductor member extending in a stacking direction of the plurality of first electrode films, and a charge storage member provided between the semiconductor member and one of the plurality of first electrode films. The first conductive film includes a main portion disposed at least below the plurality of first electrode films, and a fine line portion extending from the main portion toward an end surface side of the semiconductor substrate. A width of the fine line portion is narrower than a width of the main portion.
    Type: Application
    Filed: January 7, 2021
    Publication date: April 29, 2021
    Applicant: Toshiba Memory Corporation
    Inventors: Kotaro FUJII, Jun FUJIKI, Shinya ARAI
  • 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: 10991719
    Abstract: A semiconductor memory device according to an embodiment comprises: a semiconductor substrate; a stacked body having a plurality of first insulating layers and conductive layers stacked alternately on the semiconductor substrate; a columnar semiconductor layer contacting the semiconductor substrate in the stacked body being provided extending in a stacking direction of the stacked body and including a first portion and a second portion which is provided above the first portion; a memory layer provided on a side surface of the columnar semiconductor layer facing the stacked conductive layers and extending along the columnar semiconductor layer; and a second insulating layer provided between one of the first insulating layer and the conductive layers of the stacked body.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: April 27, 2021
    Assignee: Toshiba Memory Corporation
    Inventor: Shinya Arai
  • Patent number: 10985181
    Abstract: According to one embodiment, a source layer includes a semiconductor layer including an impurity. A stacked body includes a plurality of electrode layers stacked with an insulator interposed. A gate layer is provided between the source layer and the stacked body. The gate layer is thicker than a thickness of one layer of the electrode layers. A semiconductor body extends in a stacking direction of the stacked body through the stacked body and the gate layer. The semiconductor body further extends in the semiconductor layer where a side wall portion of the semiconductor body contacts the semiconductor layer. The semiconductor body does not contact the electrode layers and the gate layer.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: April 20, 2021
    Assignee: Toshiba Memory Corporation
    Inventor: Shinya Arai
  • Patent number: 10923490
    Abstract: A semiconductor memory device includes a semiconductor substrate, a first insulating film provided above the semiconductor substrate, a first conductive film provided above the first insulating film, a plurality of first electrode films provided above the first conductive film and stacked to be separated from each other, a semiconductor member extending in a stacking direction of the plurality of first electrode films, and a charge storage member provided between the semiconductor member and one of the plurality of first electrode films. The first conductive film includes a main portion disposed at least below the plurality of first electrode films, and a fine line portion extending from the main portion toward an end surface side of the semiconductor substrate. A width of the fine line portion is narrower than a width of the main portion.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: February 16, 2021
    Assignee: Toshiba Memory Corporation
    Inventors: Kotaro Fujii, Jun Fujiki, Shinya Arai
  • Publication number: 20210043546
    Abstract: According to one embodiment, a stacked body includes a plurality of electrode layers stacked with an insulator interposed. A conductive via pierces the stacked body, and connects an upper layer interconnect and a lower layer interconnect. A insulating film is provided between the via and the stacked body. A distance along a diametral direction of the via between a side surface of the via and an end surface of one of the electrode layers opposing the side surface of the via is greater than a distance along the diametral direction between the side surface of the via and an end surface of the insulator opposing the side surface of the via.
    Type: Application
    Filed: October 26, 2020
    Publication date: February 11, 2021
    Applicant: Toshiba Memory Corporation
    Inventors: Yasuhito YOSHIMIZU, Yoshiro SHIMOJO, Shinya ARAI
  • Publication number: 20200403001
    Abstract: According to one embodiment, a semiconductor memory device includes a substrate; an insulating layer provided on the substrate; a conductive layer provided on the insulating layer; a stacked body provided on the conductive layer and including a plurality of electrode layers and a plurality of insulating layers respectively provided among the plurality of electrode layers; a columnar section piercing through the stacked body to reach the conductive layer and extending in a first direction in which the stacked body is stacked; and a source layer. The columnar section includes a channel body and a charge storage film provided between the channel body and the respective electrode layers. The conductive layer includes a first film having electric conductivity and in contact with the lower end portion of the channel body; and an air gap provided to be covered by the first film.
    Type: Application
    Filed: September 3, 2020
    Publication date: December 24, 2020
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventor: Shinya ARAI
  • Patent number: 10854534
    Abstract: According to one embodiment, a stacked body includes a plurality of electrode layers stacked with an insulator interposed. A conductive via pierces the stacked body, and connects an upper layer interconnect and a lower layer interconnect. A insulating film is provided between the via and the stacked body. A distance along a diametral direction of the via between a side surface of the via and an end surface of one of the electrode layers opposing the side surface of the via is greater than a distance along the diametral direction between the side surface of the via and an end surface of the insulator opposing the side surface of the via.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: December 1, 2020
    Assignee: Toshiba Memory Corporation
    Inventors: Yasuhito Yoshimizu, Yoshiro Shimojo, Shinya Arai
  • Publication number: 20200343264
    Abstract: A semiconductor memory device includes a semiconductor substrate including a diode formed in an upper layer portion of the semiconductor substrate, a first insulating film provided above the semiconductor substrate, a first conductive film provided above the first insulating film and coupled to the diode, a stacked body provided above the first conductive film, an insulator and an electrode film being stacked alternately in the stacked body, a semiconductor member piercing the stacked body and being connected to the first conductive film, and a charge storage member provided between the electrode film and the semiconductor member.
    Type: Application
    Filed: July 14, 2020
    Publication date: October 29, 2020
    Applicant: Toshiba Memory Corporation
    Inventors: Jun Fujiki, Shinya Arai, Kotaro Fujii
  • Publication number: 20200335517
    Abstract: A semiconductor memory device includes a connecting member including a semiconductor material, a first electrode film, a first insulating film, a stacked body and three or more semiconductor pillars. The stacked body includes second electrode films and second insulating films that alternately stacked. The semiconductor pillars are arrayed along two or more directions, extend in a stacking direction, pierce through the stacked body and the first insulating film, and are connected to the connecting member. The device includes a third insulating film provided between the semiconductor pillars and the stacked body and between the connecting member and the first electrode film. A charge storage layer is provided at least between one of the second electrode films and the third insulating film.
    Type: Application
    Filed: July 1, 2020
    Publication date: October 22, 2020
    Applicant: Toshiba Memory Corporation
    Inventors: Yoshiaki FUKUZUMI, Shinya ARAI, Masaki TSUJI, Hideaki AOCHI, Hiroyasu TANAKA
  • Patent number: 10804288
    Abstract: According to one embodiment, a semiconductor memory device includes a substrate; an insulating layer provided on the substrate; a conductive layer provided on the insulating layer; a stacked body provided on the conductive layer and including a plurality of electrode layers and a plurality of insulating layers respectively provided among the plurality of electrode layers; a columnar section piercing through the stacked body to reach the conductive layer and extending in a first direction in which the stacked body is stacked; and a source layer. The columnar section includes a channel body and a charge storage film provided between the channel body and the respective electrode layers. The conductive layer includes a first film having electric conductivity and in contact with the lower end portion of the channel body; and an air gap provided to be covered by the first film.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: October 13, 2020
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventor: Shinya Arai
  • Publication number: 20200295037
    Abstract: In one embodiment, a semiconductor device includes a first chip and a second chip. The first chip includes a first substrate, a control circuit provided on the first substrate, and a first pad provided above the control circuit and electrically connected to the control circuit. The second chip includes a second pad provided on the first pad, a plug provided above the second pad, extending in a first direction, and including a portion that decreases in diameter in a cross-section perpendicular to the first direction with increasing distance from the first substrate, and a bonding pad provided on the plug, intersecting with the first direction, and electrically connected to the second pad by the plug.
    Type: Application
    Filed: September 9, 2019
    Publication date: September 17, 2020
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Jun Iijima, Masayoshi Tagami, Shinya Arai, Takahiro Tomimatsu
  • 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: 10756104
    Abstract: A semiconductor memory device includes a semiconductor substrate including a diode formed in an upper layer portion of the semiconductor substrate, a first insulating film provided above the semiconductor substrate, a first conductive film provided above the first insulating film and coupled to the diode, a stacked body provided above the first conductive film, an insulator and an electrode film being stacked alternately in the stacked body, a semiconductor member piercing the stacked body and being connected to the first conductive film, and a charge storage member provided between the electrode film and the semiconductor member.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: August 25, 2020
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Jun Fujiki, Shinya Arai, Kotaro Fujii