Patents by Inventor Nobuhito KUGE

Nobuhito KUGE 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: 11703465
    Abstract: An apparatus for inspecting a semiconductor device according to an embodiment includes an X-ray irradiation unit configured to make monochromatic X-rays obliquely incident on the semiconductor device, which is an object at a predetermined angle of incidence, a detection unit configured to detect observed X-rays observed from the object using a plurality of two-dimensionally disposed photodetection elements, an analysis apparatus configured to generate X-ray diffraction images obtained by photoelectrically converting the observed X-rays, and a control unit configured to change an angle of incidence and a detection angle of the X-rays, in which the analysis apparatus acquires an X-ray diffraction image every time the angle of incidence is changed, extracts a peak X-ray diffraction image, X-ray intensity of which becomes maximum for each of pixels and compares the peak X-ray diffraction image among the pixels to thereby estimate a stress distribution of the object.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: July 18, 2023
    Assignee: Kioxia Corporation
    Inventors: Nobuhito Kuge, Toshihisa Fujiwara, Yui Fujiwara, Chisaki Usui
  • Publication number: 20220065802
    Abstract: An apparatus for inspecting a semiconductor device according to an embodiment includes an X-ray irradiation unit configured to make monochromatic X-rays obliquely incident on the semiconductor device, which is an object at a predetermined angle of incidence, a detection unit configured to detect observed X-rays observed from the object using a plurality of two-dimensionally disposed photodetection elements, an analysis apparatus configured to generate X-ray diffraction images obtained by photoelectrically converting the observed X-rays, and a control unit configured to change an angle of incidence and a detection angle of the X-rays, in which the analysis apparatus acquires an X-ray diffraction image every time the angle of incidence is changed, extracts a peak X-ray diffraction image, X-ray intensity of which becomes maximum for each of pixels and compares the peak X-ray diffraction image among the pixels to thereby estimate a stress distribution of the object.
    Type: Application
    Filed: February 5, 2021
    Publication date: March 3, 2022
    Applicant: Kioxia Corporation
    Inventors: Nobuhito KUGE, Toshihisa FUJIWARA, Yui FUJIWARA, Chisaki USUI
  • Publication number: 20210407867
    Abstract: A semiconductor wafer includes a surface having at least one recess including an inner wall surface. The inner wall surface is exposed.
    Type: Application
    Filed: September 7, 2021
    Publication date: December 30, 2021
    Applicants: KABUSHIKI KAISHA TOSHIBA, Kioxia Corporation
    Inventors: Fuyuma ITO, Yasuhito YOSHIMIZU, Nobuhito KUGE, Yui KAGI, Susumu OBATA, Keiichiro MATSUO, Mitsuo SANO
  • Publication number: 20200066748
    Abstract: According to one embodiment, a semiconductor memory device includes a stacked body in which a plurality of insulating layers and a plurality of conductive layers are alternately stacked above a substrate, a pillar that penetrates the stacked body while extending in a stacking direction of the stacked body, and a semiconductor layer, a first insulating layer, a charge accumulation layer, and a second insulating layer, which are stacked on a side surface of the pillar in order from the pillar, wherein the semiconductor layer has an average grain size that is larger on a side nearer to the pillar and is smaller on a side nearer to the first insulating layer.
    Type: Application
    Filed: December 4, 2018
    Publication date: February 27, 2020
    Applicant: Toshiba Memory Corporation
    Inventors: Daisuke MATSUSHITA, Yui KAGI, Tatsuya FUJISHIMA, Masayuki SHISHIDO, Nozomi KIDO, Tomonori KAJINO, Nobuhito KUGE
  • Patent number: 10355006
    Abstract: A semiconductor storage device according to an embodiment includes a plurality of memory cells, a first film, and a second film. The memory cells are placed at intervals in a first direction on a semiconductor substrate. The first film is placed continuously in the first direction above the memory cells so as to cover all of the memory cells and including mainly metal oxide. The second film is placed on the first film and including mainly silicon nitride or silicon dioxide.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: July 16, 2019
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Ryota Fujitsuka, Nobuhito Kuge, Kensei Takahashi
  • Publication number: 20180269226
    Abstract: A semiconductor memory device includes a substrate, a first stacked body provided in a first region on the substrate, a transistor formed in a second region of the substrate, and a block member provided between the first stacked body and the transistor. The first stacked body includes a plurality of first silicon oxide films and a plurality of electrode films stacked alternately one by one. Diffusion coefficient of hydrogen in the block member is lower than diffusion coefficient of hydrogen in silicon oxide.
    Type: Application
    Filed: March 12, 2018
    Publication date: September 20, 2018
    Applicant: Toshiba Memory Corporation
    Inventors: Takeshi Sonehara, Shigehiro Yamakita, Takeshi Sakaguchi, Ken Komiya, Katsuyuki Kitamoto, Tomohiro Yamada, Ryota Fujitsuka, Nobuhito Kuge
  • Patent number: 10026743
    Abstract: A semiconductor memory device includes a stacked body including a plurality of word lines; a semiconductor layer extending through the word lines; a memory cell provided at a part where the semiconductor layer crosses one of the word lines, the memory cell including a plurality of cell layers, the cell layers including a first insulating layer; and at least one of a first structural body and a second structural body provided around the stacked body. The first structural body includes a plurality of monitor layers including same materials respectively as materials of the cell layers. The second structural body includes a first electrode, a second electrode and an insulating body positioned between the first electrode and the second electrode. The insulating body includes same material as a material of the first insulating layer, and has almost the same thickness as a thickness of the first insulating layer.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: July 17, 2018
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Nobuhito Kuge, Tatsuya Fujishima, Masayuki Shishido, Akira Kuramoto, Hideto Onuma
  • Publication number: 20180047741
    Abstract: A semiconductor memory device includes a stacked body including a plurality of word lines; a semiconductor layer extending through the word lines; a memory cell provided at a part where the semiconductor layer crosses one of the word lines, the memory cell including a plurality of cell layers, the cell layers including a first insulating layer; and at least one of a first structural body and a second structural body provided around the stacked body. The first structural body includes a plurality of monitor layers including same materials respectively as materials of the cell layers. The second structural body includes a first electrode, a second electrode and an insulating body positioned between the first electrode and the second electrode. The insulating body includes same material as a material of the first insulating layer, and has almost the same thickness as a thickness of the first insulating layer.
    Type: Application
    Filed: November 16, 2016
    Publication date: February 15, 2018
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Nobuhito KUGE, Tatsuya FUJISHIMA, Masayuki SHISHIDO, Akira KURAMOTO, Hideto ONUMA
  • Publication number: 20170069534
    Abstract: A semiconductor storage device according to an embodiment includes a plurality of memory cells, a first film, and a second film. The memory cells are placed at intervals in a first direction on a semiconductor substrate. The first film is placed continuously in the first direction above the memory cells so as to cover all of the memory cells and including mainly metal oxide. The second film is placed on the first film and including mainly silicon nitride or silicon dioxide.
    Type: Application
    Filed: January 19, 2016
    Publication date: March 9, 2017
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Ryota FUJITSUKA, Nobuhito KUGE, Kensei TAKAHASHI
  • Publication number: 20160071857
    Abstract: In accordance with an embodiment, a manufacturing method of a semiconductor device includes: forming memory cells and select transistors on a semiconductor substrate configured to select any memory cell, forming a first insulating nitride film, forming a contact, and selectively removing the first insulating nitride film. The first insulating nitride film is formed so as to cover the semiconductor substrate between the select transistors adjacent in the first direction, the select transistors, and the memory cells. The first insulating nitride film is selectively removed in a region other than the region in which the contact is formed and in a region above the select transistors or the memory cells.
    Type: Application
    Filed: March 13, 2015
    Publication date: March 10, 2016
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Nobuhito KUGE, Hiroshi Akahori
  • Patent number: 9269718
    Abstract: In accordance with an embodiment, a manufacturing method of a semiconductor device includes: forming memory cells and select transistors on a semiconductor substrate configured to select any memory cell, forming a first insulating nitride film, forming a contact, and selectively removing the first insulating nitride film. The first insulating nitride film is formed so as to cover the semiconductor substrate between the select transistors adjacent in the first direction, the select transistors, and the memory cells. The first insulating nitride film is selectively removed in a region other than the region in which the contact is formed and in a region above the select transistors or the memory cells.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: February 23, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Nobuhito Kuge, Hiroshi Akahori
  • Publication number: 20160043196
    Abstract: According to an embodiment, a semiconductor device includes a semiconductor element that is formed on a semiconductor substrate, an interlayer insulating film, including a silicon oxide film, that is formed to cover the semiconductor element, a wiring layer, including a metal, that is formed in the interlayer insulating film, and a first metal silicide film that is formed between the wiring layer and the interlayer insulating film.
    Type: Application
    Filed: February 17, 2015
    Publication date: February 11, 2016
    Inventors: Takeshi MURATA, Nobuhito KUGE
  • Patent number: 9076685
    Abstract: According to one embodiment, a semiconductor memory device includes a lower gate layer, a stacked body including a plurality of electrode layers and a plurality of insulating layers, alternately stacked on the lower gate layer, a channel body extending within the stacked body from the topmost electrode layer to the lower gate layer, and a memory film provided between the electrode layer and the channel body. The memory film includes a charge storage film. The electrode layer includes a step portion in which a step is formed in a stacking direction of the stacked body. The channel body and the memory film pass through the step portion.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: July 7, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Nobuhito Kuge, Tsukasa Nakai
  • Patent number: 9070746
    Abstract: According to one embodiment, a nonvolatile semiconductor memory device includes: a plurality of first semiconductor regions arranged each via a space in a direction crossing a first direction; a plurality of control gate electrodes; and a select gate electrode extending in a second direction, and the select gate electrode aligned with a control gate electrode located on an outermost side out of the plurality of control gate electrodes via the space; a first insulating layer covering the plurality of control gate electrodes and the select gate electrode, the first insulating layer provided on a side wall of the select gate electrode via the space, and a portion of the first insulating layer bridged between adjacent ones of the plurality of control gate electrodes protruding toward the space between adjacent ones of the plurality of control gate electrodes.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: June 30, 2015
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventor: Nobuhito Kuge
  • Publication number: 20150028409
    Abstract: According to one embodiment, a nonvolatile semiconductor memory device includes: a plurality of first semiconductor regions arranged each via a space in a direction crossing a first direction; a plurality of control gate electrodes; and a select gate electrode extending in a second direction, and the select gate electrode aligned with a control gate electrode located on an outermost side out of the plurality of control gate electrodes via the space; a first insulating layer covering the plurality of control gate electrodes and the select gate electrode, the first insulating layer provided on a side wall of the select gate electrode via the space, and a portion of the first insulating layer bridged between adjacent ones of the plurality of control gate electrodes protruding toward the space between adjacent ones of the plurality of control gate electrodes.
    Type: Application
    Filed: January 7, 2014
    Publication date: January 29, 2015
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Nobuhito KUGE
  • Publication number: 20140346585
    Abstract: According to one embodiment, a semiconductor memory device includes a lower gate layer, a stacked body including a plurality of electrode layers and a plurality of insulating layers, alternately stacked on the lower gate layer, a channel body extending within the stacked body from the topmost electrode layer to the lower gate layer, and a memory film provided between the electrode layer and the channel body. The memory film includes a charge storage film. The electrode layer includes a step portion in which a step is formed in a stacking direction of the stacked body. The channel body and the memory film pass through the step portion.
    Type: Application
    Filed: September 5, 2013
    Publication date: November 27, 2014
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Nobuhito KUGE, Tsukasa NAKAI
  • Patent number: 8766446
    Abstract: A semiconductor memory device comprising a stacked unit, a semiconductor pillar, a charge storage layer, and a non-insulating film. The stacked unit includes first conductive layers and first insulating layers which are stacked alternately. The semiconductor pillar passes through the stacked body and the semiconductor pillar has a tubular structure. The charge storage layer is provided between the semiconductor pillar and each of the first conductive layers. The non-insulating film is provided inside the tubular structure and has a non-insulating member. The first effective impurity concentration of the non-insulating film is lower than a second effective impurity concentration of the semiconductor pillar.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: July 1, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Nobuhito Kuge, Naoki Yasuda, Yoshiaki Fukuzumi, Tomoko Fujiwara
  • Publication number: 20130228928
    Abstract: According to one embodiment, a semiconductor device includes a stacked body, a second conductive layer, a second insulating layer, a tubular semiconductor pillar, an insulating film and an occlusion film. The second conductive layer is provided on the stacked body. The second insulating layer is provided on the second conductive layer. The tubular semiconductor pillar is provided in such a manner as to pass through the second insulating layer, the second conductive layer and the stacked body. The insulating film is provided between the semiconductor pillar, and the second insulating layer, the second conductive layer and the stacked body. The occlusion film occludes the tube in a lower portion of the portion passing through the second insulating layer in the semiconductor pillar. The tube below the occlusion film in the semiconductor pillar is an air gap.
    Type: Application
    Filed: August 30, 2012
    Publication date: September 5, 2013
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Nobuhito KUGE, Naoki Yasuda, Yoshiaki Fukuzumi, Tomoko Fujiwara
  • Publication number: 20120241836
    Abstract: According to one embodiment, a method of manufacturing a semiconductor device including a memory cell transistor in a first region of a substrate and a select gate transistor in a second region of the substrate includes: forming a gate insulating film, a lower gate electrode, an inter-electrode insulating film, an upper gate electrode, and a hard mask on the substrate; forming a groove passing through the hard mask, the upper gate electrode, and the inter-electrode insulating film and reaching the lower gate electrode in the second region; and forming a connection layer having a crystal structure which preferentially has a specific crystal orientation and that electrically connects between the lower gate electrode and the upper gate electrode by being selectively crystal-grown while being subjected to an influence from a crystal structure of the lower gate electrode in the groove
    Type: Application
    Filed: December 28, 2011
    Publication date: September 27, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Nobuhito KUGE, Masahito Shinohe