Patents by Inventor Yoshiki Ebiko

Yoshiki Ebiko 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: 12085410
    Abstract: A distance measurement accuracy is improved. A solid-state imaging device according to an embodiment includes a pixel array part in which a plurality of pixels is arranged in a matrix, in which each of the pixels includes a plurality of photoelectric conversion units that each photoelectrically converts incident light to generate a charge, a floating diffusion region that accumulates the charge, a plurality of transfer circuits that transfer the charge generated in each of the plurality of photoelectric conversion units to the floating diffusion region, and a first transistor that causes a pixel signal of a voltage value corresponding to a charge amount of the charge accumulated in the floating diffusion region to appear in a signal line.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: September 10, 2024
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Sozo Yokogawa, Yusuke Moriyama, Nobuhiro Kawai, Yuhi Yorikado, Fumihiko Koga, Yoshiki Ebiko, Suzunori Endo, Hayato Wakabayashi
  • Publication number: 20240290802
    Abstract: The present technology relates to an imaging element and an electronic device that enable provision of an imaging element that enables pixels to be reduced in size without increasing a thickness of an Si layer and efficiently absorbs light with a long wavelength. Photoelectric conversion regions and a region including a plurality of recessed portions on a light-receiving surface side of the photoelectric conversion regions are included, and the recessed portions are in a shape with no intersecting parts in a plan view. The recessed portions are configured of first recessed portions having a linear shape in a first direction and second recessed portions having a linear shape in a second direction, the first recessed portions and the second recessed portions are provided in a shape with no intersecting parts. The present technology can be applied to an imaging element that receives light with a long wavelength, for example.
    Type: Application
    Filed: February 10, 2022
    Publication date: August 29, 2024
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventor: Yoshiki EBIKO
  • Patent number: 12034024
    Abstract: There is provided a solid-state imaging device that is capable of suppression of color mixing caused by a pixel for near-infrared light and securement of a saturation charge amount of a pixel for visible light where the pixels are formed in a same substrate. The solid-state imaging device includes: a substrate; first to third photoelectric conversion units; infrared absorbing filters; first to third color filters; a first element isolation unit between the first and second photoelectric conversion units; and a second element isolation unit disposed between the second and third photoelectric conversion units, in which a cross-sectional area of the first element isolation unit along a direction in which the first and second photoelectric conversion units are aligned is larger than a cross-sectional area of the second element isolation unit along a direction in which the second and third photoelectric conversion units are aligned.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: July 9, 2024
    Assignee: Sony Semiconductor Solutions Corporation
    Inventor: Yoshiki Ebiko
  • Patent number: 12013489
    Abstract: In a light receiving device, a light receiving element includes a first photoelectric conversion unit (PD) that converts light into electric charges, a first electric charge storage unit (MEM) to which the electric charges are transferred from the first photoelectric conversion unit, a first distribution gate, a second electric charge storage unit (MEM) to which the electric charges are transferred from the first photoelectric conversion unit, and a second distribution gate, in which the first and second distribution gates are provided at positions axially symmetric to each other with respect to a first center axis extending so as to pass through the center of the first photoelectric conversion unit, in a direction intersecting the column direction at a predetermined angle, when viewed from above the semiconductor substrate.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: June 18, 2024
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Nobuo Nakamura, Yoshiki Ebiko, Suzunori Endo, Nobuhiro Kawai, Fumihiko Koga, Sozo Yokogawa, Yuhi Yorikado, Hayato Wakabayashi
  • Publication number: 20240055456
    Abstract: A solid-state imaging device according to an embodiment includes: a plurality of pixels, each of the plurality of pixels including a substrate having a first surface serving as a light incident surface, a photoelectric conversion unit located inside the substrate, a light shielding unit provided on a first surface side, the light shielding unit having a hole portion configured to allow light to be incident on the photoelectric conversion unit, and a first lens made of silicon, the first lens being provided on the light shielding unit and condensing incident light toward the hole portion.
    Type: Application
    Filed: August 13, 2021
    Publication date: February 15, 2024
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Shinichiro NOUDO, Tomohiro YAMAZAKI, Yoshiki EBIKO, Sozo YOKOGAWA, Tomoharu OGITA, Hiroyasu MATSUGAI, Yusuke MORIYA
  • Patent number: 11885912
    Abstract: A sensor device according to the present technology includes a pixel that includes: a photoelectric conversion element that performs photoelectric conversion; a first charge holding unit and a second charge holding unit that hold charges accumulated in the photoelectric conversion element; a first transfer transistor that transfers the charges to the first charge holding unit; and a second transfer transistor that transfers the charges to the second charge holding unit.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: January 30, 2024
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Yusuke Takatsuka, Yoshiki Ebiko
  • Publication number: 20230420479
    Abstract: Disclosed is a light receiving element including an on-chip lens, a wiring layer, and a semiconductor layer disposed between the on-chip lens and the wiring layer. The semiconductor layer includes a photodiode, a first transfer transistor that transfers electric charge generated in the photodiode to a first charge storage portion, a second transfer transistor that transfers electric charge generated in the photodiode to a second charge storage portion, and an interpixel separation portion that separates the semiconductor layers of adjacent pixels from each other, for at least part of the semiconductor layer in the depth direction. The wiring layer has at least one layer including a light blocking member. The light blocking member is disposed to overlap with the photodiode in a plan view.
    Type: Application
    Filed: September 11, 2023
    Publication date: December 28, 2023
    Applicant: Sony Semiconductor Solutions Corporation
    Inventors: YOSHIKI EBIKO, KOJI NEYA, TAKUYA SANO
  • Publication number: 20230350028
    Abstract: A sensor device according to the present technology includes a pixel that includes: a photoelectric conversion element that performs photoelectric conversion; a first charge holding unit and a second charge holding unit that hold charges accumulated in the photoelectric conversion element; a first transfer transistor that transfers the charges to the first charge holding unit; and a second transfer transistor that transfers the charges to the second charge holding unit.
    Type: Application
    Filed: April 20, 2021
    Publication date: November 2, 2023
    Inventors: YUSUKE TAKATSUKA, YOSHIKI EBIKO
  • Publication number: 20230335656
    Abstract: A first photodetector according to an embodiment of the present disclosure includes: a substrate having a first surface that serves as a light-receiving surface and a second surface opposed to the first surface, and including an uneven structure provided on the first surface and a light-receiving section that performs photoelectric conversion to generate electric charge corresponding to an amount of light reception for each pixel; a passivation film stacked on the first surface of the substrate; and a reflectance adjustment layer including a plurality of protrusions configuring the uneven structure and the passivation film embedded in a plurality of recesses configuring the uneven structure, and having a refractive index between the substrate and the passivation film.
    Type: Application
    Filed: July 7, 2021
    Publication date: October 19, 2023
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Itaru OSHIYAMA, Yoshiki EBIKO
  • Patent number: 11764246
    Abstract: Disclosed is a light receiving element including an on-chip lens, a wiring layer, and a semiconductor layer disposed between the on-chip lens and the wiring layer. The semiconductor layer includes a photodiode, a first transfer transistor that transfers electric charge generated in the photodiode to a first charge storage portion, a second transfer transistor that transfers electric charge generated in the photodiode to a second charge storage portion, and an interpixel separation portion that separates the semiconductor layers of adjacent pixels from each other, for at least part of the semiconductor layer in the depth direction. The wiring layer has at least one layer including a light blocking member. The light blocking member is disposed to overlap with the photodiode in a plan view.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: September 19, 2023
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Yoshiki Ebiko, Koji Neya, Takuya Sano
  • Publication number: 20230261029
    Abstract: The present technique relates to a light-receiving element that enables a dark current to be suppressed while improving quantum efficiency using Ge or SiGe, a method of manufacturing the light-receiving element, and an electronic device. The light-receiving element includes: a pixel array region where pixels in which at least a photoelectric conversion region is formed of a SiGe region or a Ge region are arrayed in a matrix pattern; and an AD converting portion provided in pixel units of one or more pixels. The present technique can be applied to, for example, a ranging module that measures a distance to a subject, and the like.
    Type: Application
    Filed: July 2, 2021
    Publication date: August 17, 2023
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventor: Yoshiki EBIKO
  • Publication number: 20230204773
    Abstract: To provide a ranging device having improved quantum efficiency and resolution. The present disclosure provides a ranging device including: a semiconductor layer having a first surface and a second surface opposite to the first surface; a lens on the second surface side; first and second charge storage sections in the semiconductor layer on the first surface side; a photoelectric conversion section that is in contact with the semiconductor layer on the first surface side, the photoelectric conversion section including a material different from a material of the semiconductor layer; first and second voltage application sections that apply a voltage to the semiconductor layer between the first and second charge storage sections and the photoelectric conversion section; and a waveguide provided in the semiconductor layer so as to extend from the second surface to the photoelectric conversion section, the waveguide including a material different from the material of the semiconductor layer.
    Type: Application
    Filed: March 30, 2021
    Publication date: June 29, 2023
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Yohtaro YASU, Yoshiki EBIKO
  • Patent number: 11570387
    Abstract: The present disclosure relates to a solid-state imaging device, a method for manufacturing the same, and an electronic apparatus capable of improving sensitivity while suppressing degradation of color mixture. The solid-state imaging device includes an anti-reflection portion having a moth-eye structure provided on a boundary surface on a light-receiving surface side of a photoelectric conversion region of each pixel arranged two-dimensionally, and an inter-pixel light-blocking portion provided below the boundary surface of the anti-reflection portion to block incident light. In addition, the photoelectric conversion region is a semiconductor region, and the inter-pixel light-blocking portion has a trench structure obtained by digging the semiconductor region in a depth direction at a pixel boundary. The techniques according to the present disclosure can be applied to, for example, a solid-state imaging device of a rear surface irradiation type.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: January 31, 2023
    Assignee: SONY GROUP CORPORATION
    Inventors: Yoshiaki Masuda, Yuki Miyanami, Hideshi Abe, Tomoyuki Hirano, Masanari Yamaguchi, Yoshiki Ebiko, Kazufumi Watanabe, Tomoharu Ogita
  • Publication number: 20230013285
    Abstract: A light receiving element including: a semiconductor substrate; a photoelectric conversion unit (PD) in the semiconductor substrate that converts light into electric charges; a first electric charge accumulation unit (MEM) in the semiconductor substrate to which the electric charges are transferred from the photoelectric conversion unit; a first distribution gate on a front surface of the semiconductor substrate that distributes the electric charges from the photoelectric conversion unit to the first electric charge accumulation unit; a second electric charge accumulation unit (MEM) in the semiconductor substrate to which the electric charges are transferred from the photoelectric conversion unit; and a second distribution gate on the front surface of the semiconductor substrate that distributes the electric charges from the photoelectric conversion unit to the second electric charge accumulation unit, in which the first and second distribution gates each have a pair of buried gate portions.
    Type: Application
    Filed: December 14, 2020
    Publication date: January 19, 2023
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Yuhi YORIKADO, Yoshiki EBIKO, Suzunori ENDO, Nobuhiro KAWAI, Fumihiko KOGA, Nobuo NAKAMURA, Sozo YOKOGAWA, Hayato WAKABAYASHI
  • Patent number: 11538845
    Abstract: Disclosed is a light receiving element including an on-chip lens, a wiring layer, and a semiconductor layer disposed between the on-chip lens and the wiring layer. The semiconductor layer includes a photodiode, a first transfer transistor that transfers electric charge generated in the photodiode to a first charge storage portion, a second transfer transistor that transfers electric charge generated in the photodiode to a second charge storage portion, and an interpixel separation portion that separates the semiconductor layers of adjacent pixels from each other, for at least part of the semiconductor layer in the depth direction. The wiring layer has at least one layer including a light blocking member. The light blocking member is disposed to overlap with the photodiode in a plan view.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: December 27, 2022
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Yoshiki Ebiko, Koji Neya, Takuya Sano
  • Publication number: 20220406827
    Abstract: The present technology relates to a light receiving element, a distance measurement module, and electronic equipment which are capable of reducing leakage of incident light to adjacent pixels. A light receiving element includes a semiconductor layer in which photodiodes performing photoelectric conversion of infrared rays are formed in units of pixels, and a wiring layer in which a transfer transistor reading charge generated by the photodiodes is formed, and an inter-pixel light shielding unit that shields the infrared rays is formed at a pixel boundary portion of the wiring layer. The present technology can be applied to, for example, a distance measurement module that measures a distance to a subject, and the like.
    Type: Application
    Filed: October 16, 2020
    Publication date: December 22, 2022
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Yutaro KOMURO, Yoshiki EBIKO, Hajime YAMAGISHI
  • Publication number: 20220373653
    Abstract: In a light receiving device, a light receiving element includes a first photoelectric conversion unit (PD) that converts light into electric charges, a first electric charge storage unit (MEM) to which the electric charges are transferred from the first photoelectric conversion unit, a first distribution gate, a second electric charge storage unit (MEM) to which the electric charges are transferred from the first photoelectric conversion unit, and a second distribution gate, in which the first and second distribution gates are provided at positions axially symmetric to each other with respect to a first center axis extending so as to pass through the center of the first photoelectric conversion unit, in a direction intersecting the column direction at a predetermined angle, when viewed from above the semiconductor substrate.
    Type: Application
    Filed: December 11, 2020
    Publication date: November 24, 2022
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Nobuo NAKAMURA, Yoshiki EBIKO, Suzunori ENDO, Nobuhiro KAWAI, Fumihiko KOGA, Sozo YOKOGAWA, Yuhi YORIKADO, Hayato WAKABAYASHI
  • Publication number: 20220375969
    Abstract: To provide a light receiving element including: a photoelectric conversion unit (PD) that is provided in a semiconductor substrate and converts light into a charge; a first charge accumulation unit (MEM) to which the charge is transferred from the photoelectric conversion unit; a second charge accumulation unit (MEM) to which the charge is transferred from the photoelectric conversion unit, in which each of the first and second charge accumulation units includes a stack of an electrode, a first insulating layer, and a semiconductor layer.
    Type: Application
    Filed: December 3, 2020
    Publication date: November 24, 2022
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Yuhi YORIKADO, Yoshiki EBIKO, Suzunori ENDO, Nobuhiro KAWAI, Fumihiko KOGA, Nobuo NAKAMURA, Sozo YOKOGAWA, Hayato WAKABAYASHI
  • Publication number: 20220344388
    Abstract: There is provided a light-receiving element including: an on-chip lens; an interconnection layer; and a semiconductor layer arranged between the on-chip lens and the interconnection layer, the semiconductor layer including a photodiode, an interpixel trench portion engraved up to at least a part in a depth direction of the semiconductor layer at a boundary portion of an adjacent pixel, and an in-pixel trench portion engraved at a prescribed depth from a front surface or a rear surface of the semiconductor layer at a position overlapping a part of the photodiode in a plan view.
    Type: Application
    Filed: September 11, 2020
    Publication date: October 27, 2022
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Yoshiki EBIKO, Sozo YOKOGAWA, Junji NARUSE
  • Publication number: 20220293658
    Abstract: The present technology relates to a light receiving element, a distance measurement module, and electronic equipment which are capable of reducing leakage of incident light to adjacent pixels. The light receiving element includes an on-chip lens, a wiring layer, and a semiconductor layer which is disposed between the on-chip lens and the wiring layer and includes a photodiode. The wiring layer includes a reflection film which is disposed such that at least a portion thereof overlaps the photodiode when seen in a plan view, and a transfer transistor which reads charge generated by the photodiode, and the reflection film is formed of a material different from that of a metal wiring electrically connected to a gate of the transfer transistor. The present technology can be applied to, for example, a distance measurement module that measures a distance to a subject, and the like.
    Type: Application
    Filed: October 16, 2020
    Publication date: September 15, 2022
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Yutaro KOMURO, Yoshiki EBIKO, Tomoharu OGITA