Patents by Inventor Toshihiro Shoyama

Toshihiro Shoyama 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: 20230354651
    Abstract: A light emitting device includes a plurality of first electrodes, an organic layer located above the plurality of first electrodes and including a light emitting layer, a second electrode located above the organic layer, and an insulating layer that separates the plurality of first electrodes from each other. An upper surface of each of the plurality of first electrodes includes an inner region in contact with the organic layer, and an outer region in contact with the insulating layer. The insulating layer includes an opening that defines the inner region, and a step located at a position away from the opening and overlapping the outer region.
    Type: Application
    Filed: April 20, 2023
    Publication date: November 2, 2023
    Inventors: YOSHIAKI TAGUCHI, KOJI ISHIZUYA, MASAHIKO SONE, AKINORI MAKAINO, TOSHIHIRO SHOYAMA, KENTARO SUZUKI
  • Patent number: 11355658
    Abstract: A method of manufacturing an imaging apparatus includes: preparing a substrate comprising a wafer and a silicon layer arranged on the wafer, the wafer including a first semiconductor region made of single crystal silicon with an oxygen concentration not less than 2×1016 atoms/cm3 and not greater than 4×1017 atoms/cm3, the silicon layer including a second semiconductor region made of single crystal silicon with an oxygen concentration lower than the oxygen concentration in the first semiconductor region; annealing the substrate in an atmosphere containing oxygen and setting the oxygen concentration in the second semiconductor region within the range not less than 2×1016 atoms/cm3 and not greater than 4×1017 atoms/cm3; and forming a photoelectric conversion element in the second semiconductor region after the annealing.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: June 7, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Toshihiro Shoyama, Hiroshi Takakusagi, Yasuo Yamazaki, Hideaki Ishino, Toshiyuki Ogawa
  • Patent number: 11329093
    Abstract: A photoelectric conversion apparatus includes a semiconductor substrate including a photoelectric conversion portion, a metal containing portion provided on the semiconductor substrate, an interlayer insulation film arranged on the semiconductor substrate to cover the metal containing portion, a first silicon nitride layer arranged on the photoelectric conversion portion to include a portion lying between the interlayer insulation film and the semiconductor substrate, a silicon oxide film including a portion arranged between the first silicon nitride layer and the photoelectric conversion portion, and a portion arranged between the interlayer insulation film and the metal containing portion, a second silicon nitride layer arranged between the silicon oxide film and the metal containing portion.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: May 10, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinji Kodaira, Takehito Okabe, Mitsuhiro Yomori, Nobuyuki Endo, Tomoyuki Tezuka, Toshihiro Shoyama, Jun Iwata
  • Patent number: 10854654
    Abstract: A method of manufacturing a semiconductor apparatus, includes forming a first trench on a side of a first face of a semiconductor substrate having the first face and a second face, forming a gettering region by implanting ions in the semiconductor substrate through the first trench, and forming a second trench on the side of the first face of the semiconductor substrate after the forming the gettering region. A depth of a bottom surface of the second trench with reference to the first face is smaller than a depth of a bottom surface of the first trench with reference to the first face.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: December 1, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Toshihiro Shoyama
  • Publication number: 20200274006
    Abstract: A method of manufacturing an imaging apparatus includes: preparing a substrate comprising a wafer and a silicon layer arranged on the wafer, the wafer including a first semiconductor region made of single crystal silicon with an oxygen concentration not less than 2×1016 atoms/cm3 and not greater than 4×1017 atoms/cm3, the silicon layer including a second semiconductor region made of single crystal silicon with an oxygen concentration lower than the oxygen concentration in the first semiconductor region; annealing the substrate in an atmosphere containing oxygen and setting the oxygen concentration in the second semiconductor region within the range not less than 2×1016 atoms/cm3 and not greater than 4×1017 atoms/cm3; and forming a photoelectric conversion element in the second semiconductor region after the annealing.
    Type: Application
    Filed: May 11, 2020
    Publication date: August 27, 2020
    Inventors: Toshihiro Shoyama, Hiroshi Takakusagi, Yasuo Yamazaki, Hideaki Ishino, Toshiyuki Ogawa
  • Publication number: 20200235157
    Abstract: A photoelectric conversion apparatus includes a semiconductor substrate including a photoelectric conversion portion, a metal containing portion provided on the semiconductor substrate, an interlayer insulation film arranged on the semiconductor substrate to cover the metal containing portion, a first silicon nitride layer arranged on the photoelectric conversion portion to include a portion lying between the interlayer insulation film and the semiconductor substrate, a silicon oxide film including a portion arranged between the first silicon nitride layer and the photoelectric conversion portion, and a portion arranged between the interlayer insulation film and the metal containing portion, a second silicon nitride layer arranged between the silicon oxide film and the metal containing portion.
    Type: Application
    Filed: April 3, 2020
    Publication date: July 23, 2020
    Inventors: Shinji Kodaira, Takehito Okabe, Mitsuhiro Yomori, Nobuyuki Endo, Tomoyuki Tezuka, Toshihiro Shoyama, Jun Iwata
  • Patent number: 10692922
    Abstract: A photoelectric conversion device includes photoelectric converter arranged in semiconductor substrate made of silicon and is and transistor arranged on surface of the substrate. The photoelectric converter includes first region of a first conductivity type, configured to accumulate charges, and second region of second conductivity type. The first region is arranged between the surface and the second region. The substrate includes third region as source and/or drain of the transistor. The substrate includes, in position which is below the third region and is apart from the third region, impurity region containing group 14 element other than silicon. Depth from the surface of peak position in density distribution of the group 14 element in the impurity region is smaller than depth from the surface of peak position in density distribution of majority carrier in the second region.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: June 23, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tasuku Kaneda, Toshihiro Shoyama
  • Patent number: 10693023
    Abstract: A method of manufacturing an imaging apparatus includes: preparing a substrate comprising a wafer and a silicon layer arranged on the wafer, the wafer including a first semiconductor region made of single crystal silicon with an oxygen concentration not less than 2×1016 atoms/cm3 and not greater than 4×1017 atoms/cm3, the silicon layer including a second semiconductor region made of single crystal silicon with an oxygen concentration lower than the oxygen concentration in the first semiconductor region; annealing the substrate in an atmosphere containing oxygen and setting the oxygen concentration in the second semiconductor region within the range not less than 2×1016 atoms/cm3 and not greater than 4×1017 atoms/cm3; and forming a photoelectric conversion element in the second semiconductor region after the annealing.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: June 23, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Toshihiro Shoyama, Hiroshi Takakusagi, Yasuo Yamazaki, Hideaki Ishino, Toshiyuki Ogawa
  • Patent number: 10658421
    Abstract: A method of manufacturing a photoelectric conversion apparatus includes heating a semiconductor substrate while a pixel circuit area is covered with an insulator film, performing ion implantation into the pixel circuit area through the insulator film, performing ion implantation into a peripheral circuit area after the heating, and forming a side wall on a side surface of a gate electrode of a transistor after the performing ion implantation into the peripheral circuit area.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: May 19, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takehito Okabe, Mitsuhiro Yomori, Nobuaki Kakinuma, Toshihiro Shoyama, Masashi Kusukawa
  • Patent number: 10644055
    Abstract: A photoelectric conversion apparatus includes a semiconductor substrate including a photoelectric conversion portion, a metal containing portion provided on the semiconductor substrate, an interlayer insulation film arranged on the semiconductor substrate to cover the metal containing portion, a first silicon nitride layer arranged on the photoelectric conversion portion to include a portion lying between the interlayer insulation film and the semiconductor substrate, a silicon oxide film including a portion arranged between the first silicon nitride layer and the photoelectric conversion portion, and a portion arranged between the interlayer insulation film and the metal containing portion, a second silicon nitride layer arranged between the silicon oxide film and the metal containing portion.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: May 5, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinji Kodaira, Takehito Okabe, Mitsuhiro Yomori, Nobuyuki Endo, Tomoyuki Tezuka, Toshihiro Shoyama, Jun Iwata
  • Publication number: 20200035740
    Abstract: A method of manufacturing a solid-state image sensor comprising a pixel part including a photoelectric conversion element and a MOS transistor, comprising steps of forming a first insulating film made of a nitrogen-containing silicon compound on the photoelectric conversion element and the MOS transistor, forming an opening in at least a portion of the first insulating film, which is positioned above a channel of the MOS transistor, forming a second insulating film on the first insulating film, forming a contact hole extending through the second insulating film and the first insulating film, and forming, in the contact hole, a contact plug to be connected to the MOS transistor.
    Type: Application
    Filed: October 3, 2019
    Publication date: January 30, 2020
    Inventor: Toshihiro Shoyama
  • Patent number: 10490582
    Abstract: A semiconductor device has a silicon layer having a photoelectric conversion portion, a transfer electrode of a transfer portion disposed on the silicon layer, the transfer portion transferring a charge of the photoelectric conversion portion, and an insulator film having a first portion located between the transfer electrode and the silicon layer and a second portion located on the photoelectric conversion portion, the first portion and the second portion of the insulator film contain nitrogen, oxygen, and silicon, and the distance between the position where the nitrogen concentration shows the largest value in the second portion and the silicon layer is larger than the distance between the position where the nitrogen concentration shows the largest value in the first portion and the silicon layer.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: November 26, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuyuki Endo, Masashi Kusukawa, Toshihiro Shoyama
  • Patent number: 10475841
    Abstract: A method of manufacturing a solid-state image sensor comprising a pixel part including a photoelectric conversion element and a MOS transistor, comprising steps of forming a first insulating film made of a nitrogen-containing silicon compound on the photoelectric conversion element and the MOS transistor, forming an opening in at least a portion of the first insulating film, which is positioned above a channel of the MOS transistor, forming a second insulating film on the first insulating film, forming a contact hole extending through the second insulating film and the first insulating film, and forming, in the contact hole, a contact plug to be connected to the MOS transistor.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: November 12, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Toshihiro Shoyama
  • Publication number: 20190237495
    Abstract: A method of manufacturing a semiconductor apparatus, includes forming a first trench on a side of a first face of a semiconductor substrate having the first face and a second face, forming a gettering region by implanting ions in the semiconductor substrate through the first trench, and forming a second trench on the side of the first face of the semiconductor substrate after the forming the gettering region. A depth of a bottom surface of the second trench with reference to the first face is smaller than a depth of a bottom surface of the first trench with reference to the first face.
    Type: Application
    Filed: January 24, 2019
    Publication date: August 1, 2019
    Inventor: Toshihiro Shoyama
  • Patent number: 10340400
    Abstract: A photoelectric conversion device has a silicon substrate which includes a first portion configured to perform photoelectric conversion, and a second portion which is arranged farther apart from a light receiving surface of the silicon substrate than the first portion and contains carbon. A first peak concentration as a carbon peak concentration in the second portion is not less than 1×1018 [atoms/cm3] and not more than 1×1020 [atoms/cm3], and a second peak concentration as an oxygen peak concentration in the second portion is not less than 1/1000 and not more than 1/10 of the first peak concentration.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: July 2, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Toshihiro Shoyama, Hiroshi Takakusagi, Tasuku Kaneda, Toshiyuki Ogawa
  • Publication number: 20190165034
    Abstract: A photoelectric conversion device includes photoelectric converter arranged in semiconductor substrate made of silicon and is and transistor arranged on surface of the substrate. The photoelectric converter includes first region of a first conductivity type, configured to accumulate charges, and second region of second conductivity type. The first region is arranged between the surface and the second region. The substrate includes third region as source and/or drain of the transistor. The substrate includes, in position which is below the third region and is apart from the third region, impurity region containing group 14 element other than silicon. Depth from the surface of peak position in density distribution of the group 14 element in the impurity region is smaller than depth from the surface of peak position in density distribution of majority carrier in the second region.
    Type: Application
    Filed: November 20, 2018
    Publication date: May 30, 2019
    Inventors: Tasuku Kaneda, Toshihiro Shoyama
  • Publication number: 20190067364
    Abstract: A method of manufacturing a photoelectric conversion apparatus includes heating a semiconductor substrate while a pixel circuit area is covered with an insulator film, performing ion implantation into the pixel circuit area through the insulator film, performing ion implantation into a peripheral circuit area after the heating, and forming a side wall on a side surface of a gate electrode of a transistor after the performing ion implantation into the peripheral circuit area.
    Type: Application
    Filed: August 28, 2018
    Publication date: February 28, 2019
    Inventors: Takehito Okabe, Mitsuhiro Yomori, Nobuaki Kakinuma, Toshihiro Shoyama, Masashi Kusukawa
  • Publication number: 20190019833
    Abstract: A photoelectric conversion apparatus includes a semiconductor substrate including a photoelectric conversion portion, a metal containing portion provided on the semiconductor substrate, an interlayer insulation film arranged on the semiconductor substrate to cover the metal containing portion, a first silicon nitride layer arranged on the photoelectric conversion portion to include a portion lying between the interlayer insulation film and the semiconductor substrate, a silicon oxide film including a portion arranged between the first silicon nitride layer and the photoelectric conversion portion, and a portion arranged between the interlayer insulation film and the metal containing portion, a second silicon nitride layer arranged between the silicon oxide film and the metal containing portion.
    Type: Application
    Filed: July 9, 2018
    Publication date: January 17, 2019
    Inventors: Shinji Kodaira, Takehito Okabe, Mitsuhiro Yomori, Nobuyuki Endo, Tomoyuki Tezuka, Toshihiro Shoyama, Jun Iwata
  • Publication number: 20180166591
    Abstract: A photoelectric conversion device has a silicon substrate which includes a first portion configured to perform photoelectric conversion, and a second portion which is arranged farther apart from a light receiving surface of the silicon substrate than the first portion and contains carbon. A first peak concentration as a carbon peak concentration in the second portion is not less than 1×1018 [atoms/cm3] and not more than 1×1020 [atoms/cm3], and a second peak concentration as an oxygen peak concentration in the second portion is not less than 1/1000 and not more than 1/10 of the first peak concentration.
    Type: Application
    Filed: November 29, 2017
    Publication date: June 14, 2018
    Inventors: Toshihiro Shoyama, Hiroshi Takakusagi, Tasuku Kaneda, Toshiyuki Ogawa
  • Publication number: 20180151614
    Abstract: A semiconductor device has a silicon layer having a photoelectric conversion portion, a transfer electrode of a transfer portion disposed on the silicon layer, the transfer portion transferring a charge of the photoelectric conversion portion, and an insulator film having a first portion located between the transfer electrode and the silicon layer and a second portion located on the photoelectric conversion portion, the first portion and the second portion of the insulator film contain nitrogen, oxygen, and silicon, and the distance between the position where the nitrogen concentration shows the largest value in the second portion and the silicon layer is larger than the distance between the position where the nitrogen concentration shows the largest value in the first portion and the silicon layer.
    Type: Application
    Filed: November 22, 2017
    Publication date: May 31, 2018
    Inventors: Nobuyuki Endo, Masashi Kusukawa, Toshihiro Shoyama