Patents by Inventor Shunsuke Nakatsuka

Shunsuke Nakatsuka 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: 20230136761
    Abstract: An image pickup device having a pixel region in which pixels are arranged, and in which a multilayer wiring structure is disposed. Each pixel includes a photoelectric conversion unit, a charge accumulation unit, a floating diffusion, a light shielding portion covering the charge accumulation unit and opening above the photoelectric conversion unit, and a waveguide which overlaps at least partially a portion at which the light shielding portion opens in a plan view. The device includes an insulating film disposed below the optical waveguide. The insulating film has a refractive index higher than that of an interlayer insulating film. The insulating film is disposed closer to the photoelectric conversion unit than to the lowermost wiring layer among wiring layers of the multilayer wiring structure. The insulating film extends to a portion above the light shielding portion. The insulating film is wider than a lower portion of the optical waveguide.
    Type: Application
    Filed: December 29, 2022
    Publication date: May 4, 2023
    Inventors: Kentaro Suzuki, Shunsuke Nakatsuka
  • Patent number: 11563046
    Abstract: An image pickup device having a pixel region in which pixels are arranged, and in which a multilayer wiring structure is disposed. Each pixel includes a photoelectric conversion unit, a charge accumulation unit, a floating diffusion, a light shielding portion covering the charge accumulation unit and opening above the photoelectric conversion unit, and a waveguide which overlaps at least partially a portion at which the light shielding portion opens in a plan view. The device includes an insulating film disposed below the optical waveguide. The insulating film has a refractive index higher than that of an interlayer insulating film. The insulating film is disposed closer to the photoelectric conversion unit than to the lowermost wiring layer among wiring layers of the multilayer wiring structure. The insulating film extends to a portion above the light shielding portion. The insulating film is wider than a lower portion of the optical waveguide.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: January 24, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kentaro Suzuki, Shunsuke Nakatsuka
  • Publication number: 20200161357
    Abstract: An image pickup device having a pixel region in which pixels are arranged, and in which a multilayer wiring structure is disposed. Each pixel includes a photoelectric conversion unit, a charge accumulation unit, a floating diffusion, a light shielding portion covering the charge accumulation unit and opening above the photoelectric conversion unit, and a waveguide which overlaps at least partially a portion at which the light shielding portion opens in a plan view. The device includes an insulating film disposed below the optical waveguide. The insulating film has a refractive index higher than that of an interlayer insulating film. The insulating film is disposed closer to the photoelectric conversion unit than to the lowermost wiring layer among wiring layers of the multilayer wiring structure. The insulating film extends to a portion above the light shielding portion. The insulating film is wider than a lower portion of the optical waveguide.
    Type: Application
    Filed: January 23, 2020
    Publication date: May 21, 2020
    Inventors: Kentaro Suzuki, Shunsuke Nakatsuka
  • Patent number: 10381389
    Abstract: A manufacturing method of a solid state imaging device according to one embodiment includes the steps of forming, on a substrate, a gate electrode of a first transistor and a gate electrode of a second transistor adjacent to the first transistor; forming an insulator film covering the gate electrode of the first transistor and the gate electrode of the second transistor such that a void is formed between the gate electrode of the first transistor and the gate electrode of the second transistor; forming a film on the insulator film; and forming a light shielding member by removing a part of the film by an etching.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: August 13, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Mari Isobe, Shunsuke Nakatsuka, Masatsugu Itahashi, Yasuhiro Sekine, Sho Suzuki
  • Patent number: 10304895
    Abstract: A method for manufacturing a solid-state image pickup apparatus includes forming a first insulating film over a substrate after forming a gate electrode of a first transfer transistor and a gate electrode of a second transfer transistor, forming a second insulating film on the first insulating film, forming a first structure and a second structure on side surfaces of the gate electrodes of the first and second transfer transistors, respectively, via the first insulating film by etching the second insulating film in such a manner that the first insulating film remains on a semiconductor region of a photoelectric conversion unit and a semiconductor region of a charge holding unit, and forming a light shielding film that covers the gate electrode of the first transfer transistor, the semiconductor region of the charge holding unit, and the gate electrode of the second transfer transistor.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: May 28, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shunsuke Nakatsuka, Kentaro Suzuki, Mari Isobe, Masatsugu Itahashi, Yasuhiro Sekine, Sho Suzuki
  • Publication number: 20180175088
    Abstract: A manufacturing method of a solid state imaging device according to one embodiment includes the steps of forming, on a substrate, a gate electrode of a first transistor and a gate electrode of a second transistor adjacent to the first transistor; forming an insulator film covering the gate electrode of the first transistor and the gate electrode of the second transistor such that a void is formed between the gate electrode of the first transistor and the gate electrode of the second transistor; forming a film on the insulator film; and forming a light shielding member by removing a part of the film by an etching.
    Type: Application
    Filed: February 15, 2018
    Publication date: June 21, 2018
    Inventors: Mari Isobe, Shunsuke Nakatsuka, Masatsugu Itahashi, Yasuhiro Sekine, Sho Suzuki
  • Publication number: 20180097032
    Abstract: A method for manufacturing a solid-state image pickup apparatus includes forming a first insulating film over a substrate after forming a gate electrode of a first transfer transistor and a gate electrode of a second transfer transistor, forming a second insulating film on the first insulating film, forming a first structure and a second structure on side surfaces of the gate electrodes of the first and second transfer transistors, respectively, via the first insulating film by etching the second insulating film in such a manner that the first insulating film remains on a semiconductor region of a photoelectric conversion unit and a semiconductor region of a charge holding unit, and forming a light shielding film that covers the gate electrode of the first transfer transistor, the semiconductor region of the charge holding unit, and the gate electrode of the second transfer transistor.
    Type: Application
    Filed: December 6, 2017
    Publication date: April 5, 2018
    Inventors: Shunsuke Nakatsuka, Kentaro Suzuki, Mari Isobe, Masatsugu Itahashi, Yasuhiro Sekine, Sho Suzuki
  • Patent number: 9935140
    Abstract: A manufacturing method of a solid state imaging device according to one embodiment includes the steps of forming, on a substrate, a gate electrode of a first transistor and a gate electrode of a second transistor adjacent to the first transistor; forming an insulator film covering the gate electrode of the first transistor and the gate electrode of the second transistor such that a void is formed between the gate electrode of the first transistor and the gate electrode of the second transistor; forming a film on the insulator film; and forming a light shielding member by removing a part of the film by an etching.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: April 3, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Mari Isobe, Shunsuke Nakatsuka, Masatsugu Itahashi, Yasuhiro Sekine, Sho Suzuki
  • Patent number: 9899445
    Abstract: A method for manufacturing a solid-state image pickup apparatus includes forming a first insulating film over a substrate after forming a gate electrode of a first transfer transistor and a gate electrode of a second transfer transistor, forming a second insulating film on the first insulating film, forming a first structure and a second structure on side surfaces of the gate electrodes of the first and second transfer transistors, respectively, via the first insulating film by etching the second insulating film in such a manner that the first insulating film remains on a semiconductor region of a photoelectric conversion unit and a semiconductor region of a charge holding unit, and forming a light shielding film that covers the gate electrode of the first transfer transistor, the semiconductor region of the charge holding unit, and the gate electrode of the second transfer transistor.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: February 20, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shunsuke Nakatsuka, Kentaro Suzuki, Mari Isobe, Masatsugu Itahashi, Yasuhiro Sekine, Sho Suzuki
  • Patent number: 9601533
    Abstract: A method of manufacturing a solid-state imaging apparatus, comprising preparing a semiconductor substrate including a photoelectric conversion portion and a structure which includes an insulating member formed on the photoelectric conversion portion and a wiring pattern formed in the insulating member, forming a film made of SiC and/or SiCN on the structure, forming an opening immediately above the photoelectric conversion portion by removing part of the film and part of the insulating member, and depositing a member in the opening and on the film, and forming a light-guide portion by polishing the member so as to expose the film.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: March 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yusuke Tsukagoshi, Shunsuke Nakatsuka, Takayasu Kanesada
  • Publication number: 20170077161
    Abstract: An image pickup device having a pixel region in which pixels are arranged, and in which a multilayer wiring structure is disposed. Each pixel includes a photoelectric conversion unit, a charge accumulation unit, a floating diffusion, a light shielding portion covering the charge accumulation unit and opening above the photoelectric conversion unit, and a waveguide which overlaps at least partially a portion at which the light shielding portion opens in a plan view. The device includes an insulating film disposed below the optical waveguide. The insulating film has a refractive index higher than that of an interlayer insulating film. The insulating film is disposed closer to the photoelectric conversion unit than to the lowermost wiring layer among wiring layers of the multilayer wiring structure. The insulating film extends to a portion above the light shielding portion. The insulating film is wider than a lower portion of the optical waveguide.
    Type: Application
    Filed: September 1, 2016
    Publication date: March 16, 2017
    Inventors: Kentaro Suzuki, Shunsuke Nakatsuka
  • Publication number: 20160343767
    Abstract: A method for manufacturing a solid-state image pickup apparatus includes forming a first insulating film over a substrate after forming a gate electrode of a first transfer transistor and a gate electrode of a second transfer transistor, forming a second insulating film on the first insulating film, forming a first structure and a second structure on side surfaces of the gate electrodes of the first and second transfer transistors, respectively, via the first insulating film by etching the second insulating film in such a manner that the first insulating film remains on a semiconductor region of a photoelectric conversion unit and a semiconductor region of a charge holding unit, and forming a light shielding film that covers the gate electrode of the first transfer transistor, the semiconductor region of the charge holding unit, and the gate electrode of the second transfer transistor.
    Type: Application
    Filed: May 4, 2016
    Publication date: November 24, 2016
    Inventors: Shunsuke Nakatsuka, Kentaro Suzuki, Mari Isobe, Masatsugu Itahashi, Yasuhiro Sekine, Sho Suzuki
  • Publication number: 20160343754
    Abstract: A manufacturing method of a solid state imaging device according to one embodiment includes the steps of forming, on a substrate, a gate electrode of a first transistor and a gate electrode of a second transistor adjacent to the first transistor; forming an insulator film covering the gate electrode of the first transistor and the gate electrode of the second transistor such that a void is formed between the gate electrode of the first transistor and the gate electrode of the second transistor; forming a film on the insulator film; and forming a light shielding member by removing a part of the film by an etching.
    Type: Application
    Filed: May 12, 2016
    Publication date: November 24, 2016
    Inventors: Mari Isobe, Shunsuke Nakatsuka, Masatsugu Itahashi, Yasuhiro Sekine, Sho Suzuki
  • Publication number: 20140375853
    Abstract: A method of manufacturing a solid-state imaging apparatus, comprising preparing a semiconductor substrate including a photoelectric conversion portion and a structure which includes an insulating member formed on the photoelectric conversion portion and a wiring pattern formed in the insulating member, forming a film made of SiC and/or SiCN on the structure, forming an opening immediately above the photoelectric conversion portion by removing part of the film and part of the insulating member, and depositing a member in the opening and on the film, and forming a light-guide portion by polishing the member so as to expose the film.
    Type: Application
    Filed: June 3, 2014
    Publication date: December 25, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yusuke Tsukagoshi, Shunsuke Nakatsuka, Takayasu Kanesada