Patents by Inventor Jun Iijima

Jun Iijima 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: 10868029
    Abstract: According to an embodiment, a semiconductor memory device includes a substrate, a stacked body, a plurality of columnar portions, a plurality of interconnects, and a plurality of connection portions. The plurality of interconnects extends in a first direction parallel to an upper surface of the substrate. When viewed from a second direction perpendicular to the stacking direction and the first direction, a portion of a first connection portion overlaps a portion of a second connection portion. The first connection portion is connected to a first interconnect of the plurality of interconnects. The second connection portion is connected to a second interconnect of the plurality of interconnects adjacent to the first interconnect in the second direction.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: December 15, 2020
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Jun Iijima, Masayoshi Tagami, Takamasa Usui, Takahito Nishimura
  • Publication number: 20200350291
    Abstract: A memory device includes a first memory cell array, a second memory cell array disposed in a first direction with respect to the first memory cell array, a first contact plug extending in the first direction through the first memory cell array, and a second contact plug extending in the first direction through the second memory cell array. The first memory cell array includes first electrode layers stacked in a first direction, and a first semiconductor pillar extending through the first electrode layers in the first direction. The second memory cell array including second electrode layers stacked in the first direction, and a second semiconductor pillar extending in the first direction through the second electrode layers. The first contact plug is electrically connected to the first semiconductor pillar, and the second contact plug is electrically connected to the second semiconductor pillar and the first contact plug.
    Type: Application
    Filed: June 30, 2020
    Publication date: November 5, 2020
    Applicant: Toshiba Memory Corporation
    Inventors: Masayoshi TAGAMI, Ryota KATSUMATA, Jun IIJIMA, Tetsuya SHIMIZU, Takamasa USUI, Genki FUJITA
  • Publication number: 20200343263
    Abstract: According to one embodiment, a semiconductor memory device includes a first memory chip, a circuit chip, and an external connection electrode on a surface of the first memory chip. The first memory chip comprises first conductors stacked via an insulator, and a first pillar passing the first conductors. The circuit chip comprises a substrate, a control circuit, and a second conductor connected to the control circuit, the circuit chip being attached to the first memory chip. The external connection electrode comprises a portion extending from a side of the surface of the first memory chip through the first memory chip and connected to the second conductor. Part of the first conductors is between the external connection electrode and the substrate.
    Type: Application
    Filed: July 13, 2020
    Publication date: October 29, 2020
    Applicant: Toshiba Memory Corporation
    Inventors: Masayoshi TAGAMI, Jun Iijima, Ryota Katsumata, Kazuyuki Higashi
  • 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
  • Patent number: 10748928
    Abstract: According to one embodiment, a semiconductor memory device includes a first memory chip, a circuit chip, and an external connection electrode on a surface of the first memory chip. The first memory chip comprises first conductors stacked via an insulator, and a first pillar passing the first conductors. The circuit chip comprises a substrate, a control circuit, and a second conductor connected to the control circuit, the circuit chip being attached to the first memory chip. The external connection electrode comprises a portion extending from a side of the surface of the first memory chip through the first memory chip and connected to the second conductor. Part of the first conductors is between the external connection electrode and the substrate.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: August 18, 2020
    Assignee: Toshiba Memory Corporation
    Inventors: Masayoshi Tagami, Jun Iijima, Ryota Katsumata, Kazuyuki Higashi
  • Patent number: 10741527
    Abstract: A memory device includes a first memory cell array, a second memory cell array disposed in a first direction with respect to the first memory cell array, a first contact plug extending in the first direction through the first memory cell array, and a second contact plug extending in the first direction through the second memory cell array. The first memory cell array includes first electrode layers stacked in a first direction, and a first semiconductor pillar extending through the first electrode layers in the first direction. The second memory cell array including second electrode layers stacked in the first direction, and a second semiconductor pillar extending in the first direction through the second electrode layers. The first contact plug is electrically connected to the first semiconductor pillar, and the second contact plug is electrically connected to the second semiconductor pillar and the first contact plug.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: August 11, 2020
    Assignee: Toshiba Memory Corporation
    Inventors: Masayoshi Tagami, Ryota Katsumata, Jun Iijima, Tetsuya Shimizu, Takamasa Usui, Genki Fujita
  • Publication number: 20200176434
    Abstract: In one embodiment, a semiconductor device includes a first interconnection including a first extending portion extending in a first direction, and a first curved portion curved with respect to the first extending portion. The device further includes a second interconnection including a second extending portion extending in the first direction and adjacent to the first extending portion in a second direction, and a second curved portion curved with respect to the second extending portion. The device further includes a first plug provided on the first curved portion, or on a first non-opposite portion included in the first extending portion and not opposite to the second extending portion in the second direction. The device further includes a second plug provided on the second curved portion, or on a second non-opposite portion included in the second extending portion and not opposite to the first extending portion in the second direction.
    Type: Application
    Filed: February 6, 2020
    Publication date: June 4, 2020
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Jun IIJIMA, Yumi NAKAJIMA
  • Publication number: 20200111810
    Abstract: According to one embodiment, a semiconductor memory device includes a first memory chip, a circuit chip, and an external connection electrode on a surface of the first memory chip. The first memory chip comprises first conductors stacked via an insulator, and a first pillar passing the first conductors. The circuit chip comprises a substrate, a control circuit, and a second conductor connected to the control circuit, the circuit chip being attached to the first memory chip. The external connection electrode comprises a portion extending from a side of the surface of the first memory chip through the first memory chip and connected to the second conductor.
    Type: Application
    Filed: December 9, 2019
    Publication date: April 9, 2020
    Applicant: Toshiba Memory Corporation
    Inventors: Masayoshi TAGAMI, Jun Iijima, Ryota Katsumata, Kazuyuki Higashi
  • Patent number: 10600771
    Abstract: In one embodiment, a semiconductor device includes a first interconnection including a first extending portion extending in a first direction, and a first curved portion curved with respect to the first extending portion. The device further includes a second interconnection including a second extending portion extending in the first direction and adjacent to the first extending portion in a second direction, and a second curved portion curved with respect to the second extending portion. The device further includes a first plug provided on the first curved portion, or on a first non-opposite portion included in the first extending portion and not opposite to the second extending portion in the second direction. The device further includes a second plug provided on the second curved portion, or on a second non-opposite portion included in the second extending portion and not opposite to the first extending portion in the second direction.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: March 24, 2020
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Jun Iijima, Yumi Nakajima
  • Patent number: 10553612
    Abstract: According to one embodiment, a semiconductor memory device includes a first memory chip, a circuit chip, and an external connection electrode on a surface of the first memory chip. The first memory chip comprises first conductors stacked via an insulator, and a first pillar passing the first conductors. The circuit chip comprises a substrate, a control circuit, and a second conductor connected to the control circuit, the circuit chip being attached to the first memory chip. The external connection electrode comprises a portion extending from a side of the surface of the first memory chip through the first memory chip and connected to the second conductor. Part of the first conductors is between the external connection electrode and the substrate.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: February 4, 2020
    Assignee: Toshiba Memory Corporation
    Inventors: Masayoshi Tagami, Jun Iijima, Ryota Katsumata, Kazuyuki Higashi
  • Publication number: 20190326322
    Abstract: According to one embodiment, a semiconductor memory device includes a first memory chip, a circuit chip, and an external connection electrode on a surface of the first memory chip. The first memory chip comprises first conductors stacked via an insulator, and a first pillar passing the first conductors. The circuit chip comprises a substrate, a control circuit, and a second conductor connected to the control circuit, the circuit chip being attached to the first memory chip. The external connection electrode comprises a portion extending from a side of the surface of the first memory chip through the first memory chip and connected to the second conductor. Part of the first conductors is between the external connection electrode and the substrate.
    Type: Application
    Filed: July 2, 2019
    Publication date: October 24, 2019
    Applicant: Toshiba Memory Corporation
    Inventors: Masayoshi TAGAMI, Jun IIJIMA, Ryota KATSUMATA, Kazuyuki HIGASHI
  • Publication number: 20190312012
    Abstract: A memory device includes a first memory cell array, a second memory cell array disposed in a first direction with respect to the first memory cell array, a first contact plug extending in the first direction through the first memory cell array, and a second contact plug extending in the first direction through the second memory cell array. The first memory cell array includes first electrode layers stacked in a first direction, and a first semiconductor pillar extending through the first electrode layers in the first direction. The second memory cell array including second electrode layers stacked in the first direction, and a second semiconductor pillar extending in the first direction through the second electrode layers. The first contact plug is electrically connected to the first semiconductor pillar, and the second contact plug is electrically connected to the second semiconductor pillar and the first contact plug.
    Type: Application
    Filed: April 22, 2019
    Publication date: October 10, 2019
    Applicant: Toshiba Memory Corporation
    Inventors: Masayoshi TAGAMI, Ryota KATSUMATA, Jun IIJIMA, Tetsuya SHIMIZU, Takamasa USUI, Genki FUJITA
  • Publication number: 20190296035
    Abstract: According to an embodiment, a semiconductor memory device includes a substrate, a stacked body, a plurality of columnar portions, a plurality of interconnects, and a plurality of connection portions. The plurality of interconnects extends in a first direction parallel to an upper surface of the substrate. When viewed from a second direction perpendicular to the stacking direction and the first direction, a portion of a first connection portion overlaps a portion of a second connection portion. The first connection portion is connected to a first interconnect of the plurality of interconnects. The second connection portion is connected to a second interconnect of the plurality of interconnects adjacent to the first interconnect in the second direction.
    Type: Application
    Filed: September 11, 2018
    Publication date: September 26, 2019
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Jun IIJIMA, Masayoshi Tagami, Takamasa Usui, Takahito Nishimura
  • Publication number: 20190287955
    Abstract: In one embodiment, a semiconductor device includes a first interconnection including a first extending portion extending in a first direction, and a first curved portion curved with respect to the first extending portion. The device further includes a second interconnection including a second extending portion extending in the first direction and adjacent to the first extending portion in a second direction, and a second curved portion curved with respect to the second extending portion. The device further includes a first plug provided on the first curved portion, or on a first non-opposite portion included in the first extending portion and not opposite to the second extending portion in the second direction. The device further includes a second plug provided on the second curved portion, or on a second non-opposite portion included in the second extending portion and not opposite to the first extending portion in the second direction.
    Type: Application
    Filed: September 10, 2018
    Publication date: September 19, 2019
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Jun IIJIMA, Yumi NAKAJIMA
  • Patent number: 10381374
    Abstract: According to one embodiment, a semiconductor memory device includes a first memory chip, a circuit chip, and an external connection electrode on a surface of the first memory chip. The first memory chip comprises first conductors stacked via an insulator, and a first pillar passing the first conductors. The circuit chip comprises a substrate, a control circuit, and a second conductor connected to the control circuit, the circuit chip being attached to the first memory chip. The external connection electrode comprises a portion extending from a side of the surface of the first memory chip through the first memory chip and connected to the second conductor. Part of the first conductors is between the external connection electrode and the substrate.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: August 13, 2019
    Assignee: Toshiba Memory Corporation
    Inventors: Masayoshi Tagami, Jun Iijima, Ryota Katsumata, Kazuyuki Higashi
  • Patent number: 10331028
    Abstract: According to one embodiment, an imprinting apparatus is provided. The imprinting apparatus includes a controller that controls a resist drop position on a wafer to be imprinted with a pattern, using a first resist drop recipe corresponding to a first topography of the wafer.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: June 25, 2019
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Takahito Nishimura, Jun Iijima
  • Patent number: 10297578
    Abstract: A memory device includes a first memory cell array, a second memory cell array disposed in a first direction with respect to the first memory cell array, a first contact plug extending in the first direction through the first memory cell array, and a second contact plug extending in the first direction through the second memory cell array. The first memory cell array includes first electrode layers stacked in a first direction, and a first semiconductor pillar extending through the first electrode layers in the first direction. The second memory cell array including second electrode layers stacked in the first direction, and a second semiconductor pillar extending in the first direction through the second electrode layers. The first contact plug is electrically connected to the first semiconductor pillar, and the second contact plug is electrically connected to the second semiconductor pillar and the first contact plug.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: May 21, 2019
    Assignee: Toshiba Memory Corporation
    Inventors: Masayoshi Tagami, Ryota Katsumata, Jun Iijima, Tetsuya Shimizu, Takamasa Usui, Genki Fujita
  • Publication number: 20190088676
    Abstract: According to one embodiment, a semiconductor memory device includes a first memory chip, a circuit chip, and an external connection electrode on a surface of the first memory chip. The first memory chip comprises first conductors stacked via an insulator, and a first pillar passing the first conductors. The circuit chip comprises a substrate, a control circuit, and a second conductor connected to the control circuit, the circuit chip being attached to the first memory chip. The external connection electrode comprises a portion extending from a side of the surface of the first memory chip through the first memory chip and connected to the second conductor. Part of the first conductors is between the external connection electrode and the substrate.
    Type: Application
    Filed: March 5, 2018
    Publication date: March 21, 2019
    Applicant: Toshiba Memory Corporation
    Inventors: Masayoshi TAGAMI, Jun IIJIMA, Ryota KATSUMATA, Kazuyuki HIGASHI
  • Publication number: 20180261575
    Abstract: A memory device includes a first memory cell array, a second memory cell array disposed in a first direction with respect to the first memory cell array, a first contact plug extending in the first direction through the first memory cell array, and a second contact plug extending in the first direction through the second memory cell array. The first memory cell array includes first electrode layers stacked in a first direction, and a first semiconductor pillar extending through the first electrode layers in the first direction. The second memory cell array including second electrode layers stacked in the first direction, and a second semiconductor pillar extending in the first direction through the second electrode layers. The first contact plug is electrically connected to the first semiconductor pillar, and the second contact plug is electrically connected to the second semiconductor pillar and the first contact plug.
    Type: Application
    Filed: September 15, 2017
    Publication date: September 13, 2018
    Applicant: Toshiba Memory Corporation
    Inventors: Masayoshi TAGAMI, Ryota Katsumata, Jun Iijima, Tetsuya Shimizu, Takamasa Usui, Genki Fujita
  • Patent number: 10075631
    Abstract: An imaging apparatus which can take shots sequentially by self-timer. The imaging apparatus, in response to input of a user's start operation to perform self-timer shooting, plays back a first voice file including a voice of a predetermined playback time period one time, the first voice file including a voice providing guidance to prepare for shooting, determines whether the first voice file has been played back to completion one time, and performs shooting one time when it is determined that the first voice file has been played back to completion one time, without performing a time-check function. The imaging apparatus repeats playback of the first voice file and performs shooting a predetermined number of times.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: September 11, 2018
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Jun Iijima, Junichi Miyasaka