Patents by Inventor Takahiro TOMIMATSU

Takahiro TOMIMATSU 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: 11938728
    Abstract: A liquid ejecting head includes: head chips including a first-head-chip and a second-head-chip; a holder holding the head chips; and a heater along a direction parallel to a nozzle surface. The first-head-chip and the second-head-chip are disposed to be offset from each other in both a first-direction and a second-direction parallel to the nozzle surface and intersecting with each other. When a first-side is one of the four sides of a virtual rectangle circumscribing the aggregate of the head chips and a second-side and a third-side are coupled to both ends of the first-side, the first-head-chip is in contact with the first-side and the third-side and the second-head chip is in contact with the second-side. The heater overlaps the head chips. A first-region surrounded by the first-side, the second-side, the first-head-chip, and the second-head-chip includes a first-outside-part positioned outside the outer edge of the heater.
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: March 26, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takahiro Kanegae, Katsuhiro Okubo, Kentaro Murakami, Shingo Tomimatsu, Hiroki Kobayashi, Haruhisa Uezawa
  • Patent number: 11938732
    Abstract: A liquid ejecting head supported by a support body includes: a first head chip; a holder having a holding portion holding the first head chip and a flange portion; and a heater heating the holding portion, in which the holding portion has a heat receiving portion receiving heat from the heater, and a shortest path of heat transferred through the holder from the heat receiving portion to the flange portion is bent or curved at two or more points.
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: March 26, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Katsuhiro Okubo, Takahiro Kanegae, Kentaro Murakami, Shingo Tomimatsu, Hiroki Kobayashi, Haruhisa Uezawa
  • Patent number: 11688726
    Abstract: According to one embodiment, a semiconductor device includes a first chip, and a second chip bonded to the first chip. The first chip includes: a substrate; a transistor provided on the substrate; a plurality of first wirings provided above the transistor; and a plurality of first pads provided above the first wirings. The second chip includes: a plurality of second pads coupled to the plurality of first pads, respectively; a plurality of second wirings provided above the second pads; and a memory cell array provided above the second wirings. The first wiring, the first pad, the second pad, and the second wiring are coupled to one another in series to form a first pattern.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: June 27, 2023
    Assignee: KIOXIA CORPORATION
    Inventors: Yasunori Iwashita, Shinya Arai, Keisuke Nakatsuka, Takahiro Tomimatsu, Ryo Tanaka
  • Publication number: 20230129339
    Abstract: According to one embodiment, a semiconductor device includes a first substrate; a first insulating film provided on the first substrate; a first plug provided in the first insulating film; a second substrate provided on the first insulating film; and a first wiring including a first portion and a second portion. The first portion is provided in the second substrate and coupled to the first plug, and the second portion is provided on the second substrate and coupled to a bonding pad.
    Type: Application
    Filed: December 23, 2022
    Publication date: April 27, 2023
    Applicant: Kioxia Corporation
    Inventors: Takahiro TOMIMATSU, Shinya ARAI
  • Patent number: 11562976
    Abstract: According to one embodiment, a semiconductor device includes a first substrate; a first insulating film provided on the first substrate; a first plug provided in the first insulating film; a second substrate provided on the first insulating film; and a first wiring including a first portion and a second portion. The first portion is provided in the second substrate and coupled to the first plug, and the second portion is provided on the second substrate and coupled to a bonding pad.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: January 24, 2023
    Assignee: KIOXIA CORPORATION
    Inventors: Takahiro Tomimatsu, Shinya Arai
  • 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
  • Publication number: 20220084970
    Abstract: According to one embodiment, a semiconductor device includes a first substrate; a first insulating film provided on the first substrate; a first plug provided in the first insulating film; a second substrate provided on the first insulating film; and a first wiring including a first portion and a second portion. The first portion is provided in the second substrate and coupled to the first plug, and the second portion is provided on the second substrate and coupled to a bonding pad.
    Type: Application
    Filed: March 2, 2021
    Publication date: March 17, 2022
    Inventors: Takahiro TOMIMATSU, Shinya ARAI
  • Publication number: 20220085003
    Abstract: According to one embodiment, a semiconductor device includes a first chip, and a second chip bonded to the first chip. The first chip includes: a substrate; a transistor provided on the substrate; a plurality of first wirings provided above the transistor; and a plurality of first pads provided above the first wirings. The second chip includes: a plurality of second pads coupled to the plurality of first pads, respectively; a plurality of second wirings provided above the second pads; and a memory cell array provided above the second wirings. The first wiring, the first pad, the second pad, and the second wiring are coupled to one another in series to form a first pattern.
    Type: Application
    Filed: March 2, 2021
    Publication date: March 17, 2022
    Applicant: Kioxia Corporation
    Inventors: Yasunori IWASHITA, Shinya ARAI, Keisuke NAKATSUKA, Takahiro TOMIMATSU, Ryo 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: 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
  • Publication number: 20200091173
    Abstract: A semiconductor device according to one embodiment includes a semiconductor substrate and a stack body including first films and second films alternately stacked in a first direction perpendicular to the semiconductor substrate, and including a stepped end portion. Each of the first films has a thick film portion located on the end portion, and an eave portion hanging over from a upper part of the thick film portion to the side in a second direction parallel to the semiconductor substrate.
    Type: Application
    Filed: February 21, 2019
    Publication date: March 19, 2020
    Applicant: Toshiba Memory Corporation
    Inventors: Osamu MIYAGAWA, Takahiro TOMIMATSU
  • Patent number: 10586804
    Abstract: According to one embodiment, a multi-layer wiring structure includes a first multi-layer section, first contact plugs, and pillars. First conductors and first insulators are alternately layered in the first multi-layer section. The multi-layer section includes a first area that includes memory cells, and a second area different from the first area. The first contact plugs are formed in the first holes extending from an uppermost layer of the first multi-layer section respectively to the first conductors in the second area, side surfaces of the first contact plugs being covered with first insulating films. The pillars are formed of second insulators and passing through the first multi-layer section in a layered direction in the second area.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: March 10, 2020
    Assignee: Toshiba Memory Corporation
    Inventor: Takahiro Tomimatsu
  • Patent number: 10559623
    Abstract: An offset spacer film (OSS) is formed on a side wall surface of a gate electrode (NLGE, PLGE) to cover a region in which a photo diode (PD) is disposed. Next, an extension region (LNLD, LPLD) is formed using the offset spacer film and the like as an implantation mask. Next, process is provided to remove the offset spacer film covering the region in which the photo diode is disposed. Next, a sidewall insulating film (SWI) is formed on the side wall surface of the gate electrode. Next, a source-drain region (HPDF, LPDF, HNDF, LNDF) is formed using the sidewall insulating film and the like as an implantation mask.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: February 11, 2020
    Assignee: Renesas Electronics Corporation
    Inventors: Takeshi Kamino, Takahiro Tomimatsu
  • Patent number: 10483124
    Abstract: According to one embodiment, a semiconductor device includes: a first stack above a substrate and including insulation layers and conductive layers alternately stacked in a first direction, the first stack including a staircase-shaped portion in an end portion of the first stack in a second direction parallel to a main face of the substrate, the staircase-shaped portion including steps and terraces corresponding to the conductive layers, at least a part of the steps having arc shape curved along a third direction crossing the second direction; and a second stack above the substrate and including first and second layers stacked in the first direction. In the second and/or third direction, a dimension of the first stack is larger than a dimension of the second stack.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: November 19, 2019
    Assignee: Toshiba Memory Corporation
    Inventors: Masakazu Sawano, Takahiro Tomimatsu, Junichi Shibata, Hideki Inokuma, Hisashi Kato, Kenta Yoshinaga
  • Publication number: 20190280041
    Abstract: An offset spacer film (OSS) is formed on a side wall surface of a gate electrode (NLGE, PLGE) to cover a region in which a photo diode (PD) is disposed. Next, an extension region (LNLD, LPLD) is formed using the offset spacer film and the like as an implantation mask. Next, process is provided to remove the offset spacer film covering the region in which the photo diode is disposed. Next, a sidewall insulating film (SWI) is formed on the side wall surface of the gate electrode. Next, a source-drain region (HPDF, LPDF, HNDF, LNDF) is formed using the sidewall insulating film and the like as an implantation mask.
    Type: Application
    Filed: May 22, 2019
    Publication date: September 12, 2019
    Inventors: Takeshi Kamino, Takahiro Tomimatsu
  • Publication number: 20190214268
    Abstract: According to one embodiment, a semiconductor device includes: a first stack above a substrate and including insulation layers and conductive layers alternately stacked in a first direction, the first stack including a staircase-shaped portion in an end portion of the first stack in a second direction parallel to a main face of the substrate, the staircase-shaped portion including steps and terraces corresponding to the conductive layers, at least a part of the steps having arc shape curved along a third direction crossing the second direction; and a second stack above the substrate and including first and second layers stacked in the first direction. In the second and/or third direction, a dimension of the first stack is larger than a dimension of the second stack.
    Type: Application
    Filed: September 10, 2018
    Publication date: July 11, 2019
    Applicant: Toshiba Memory Corporation
    Inventors: Masakazu SAWANO, Takahiro TOMIMATSU, Junichi SHIBATA, Hideki INOKUMA, Hisashi KATO, Kenta YOSHINAGA
  • Patent number: 10319779
    Abstract: An offset spacer film (OSS) is formed on a side wall surface of a gate electrode (NLGE, PLGE) to cover a region in which a photo diode (PD) is disposed. Next, an extension region (LNLD, LPLD) is formed using the offset spacer film and the like as an implantation mask. Next, process is provided to remove the offset spacer film covering the region in which the photo diode is disposed. Next, a sidewall insulating film (SWI) is formed on the side wall surface of the gate electrode. Next, a source-drain region (HPDF, LPDF, HNDF, LNDF) is formed using the sidewall insulating film and the like as an implantation mask.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: June 11, 2019
    Assignee: Renesas Electronics Corporation
    Inventors: Takeshi Kamino, Takahiro Tomimatsu
  • Publication number: 20190088672
    Abstract: According to one embodiment, a multi-layer wiring structure includes a first multi-layer section, first contact plugs, and pillars. First conductors and first insulators are alternately layered in the first multi-layer section. The multi-layer section includes a first area that includes memory cells, and a second area different from the first area. The first contact plugs are formed in the first holes extending from an uppermost layer of the first multi-layer section respectively to the first conductors in the second area, side surfaces of the first contact plugs being covered with first insulating films. The pillars are formed of second insulators and passing through the first multi-layer section in a layered direction in the second area.
    Type: Application
    Filed: February 7, 2018
    Publication date: March 21, 2019
    Applicant: Toshiba Memory Corporation
    Inventor: Takahiro TOMIMATSU
  • Publication number: 20180301503
    Abstract: An offset spacer film (OSS) is formed on a side wall surface of a gate electrode (NLGE, PLGE) to cover a region in which a photo diode (PD) is disposed. Next, an extension region (LNLD, LPLD) is formed using the offset spacer film and the like as an implantation mask. Next, process is provided to remove the offset spacer film covering the region in which the photo diode is disposed. Next, a sidewall insulating film (SWI) is formed on the side wall surface of the gate electrode. Next, a source-drain region (HPDF, LPDF, HNDF, LNDF) is formed using the sidewall insulating film and the like as an implantation mask.
    Type: Application
    Filed: June 21, 2018
    Publication date: October 18, 2018
    Inventors: Takeshi Kamino, Takahiro Tomimatsu