Patents by Inventor Ryoto Yoshita

Ryoto Yoshita 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: 20230353894
    Abstract: Provided is an imaging device and an electronic device which enable image capturing based on the global shutter system, without reducing the amount of saturated signal charge. Pixels each including a photoelectric conversion unit that converts light received thereon into electric charge, and a holding unit that holds the electric charge transferred from the photoelectric conversion unit, a floating diffusion that is shared among a plurality of the pixels, and that holds the electric charge transferred from the holding unit, and a boost line through which the floating diffusion is boosted are included.
    Type: Application
    Filed: June 26, 2023
    Publication date: November 2, 2023
    Inventors: YOSHIMICHI KUMAGAI, TAKASHI ABE, RYOTO YOSHITA, RYO FUKUI
  • Publication number: 20230261030
    Abstract: The present disclosure relates to an imaging device and an electronic device that make it possible to obtain a better pixel signal. A photoelectric conversion part that converts received light into a charge; a holding part that holds a charge transferred from the photoelectric conversion part; and a light shielding part that shields light between the photoelectric conversion part and the holding part are provided. The photoelectric conversion part, the holding part, and the light shielding part are formed in a semiconductor substrate. The light shielding part of a transfer region that transfers the charge from the photoelectric conversion part to the holding part is formed as a non-penetrating light shielding part that does not penetrate the semiconductor substrate. The light shielding part other than the transfer region is formed as a penetrating light shielding part that penetrates the semiconductor substrate. The present technology is applicable to an imaging device.
    Type: Application
    Filed: April 26, 2023
    Publication date: August 17, 2023
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Yoshimichi KUMAGAI, Takashi ABE, Ryoto YOSHITA
  • Patent number: 11722793
    Abstract: Provided is an imaging device and an electronic device which enable image capturing based on the global shutter system, without reducing the amount of saturated signal charge. Pixels each including a photoelectric conversion unit that converts light received thereon into electric charge, and a holding unit that holds the electric charge transferred from the photoelectric conversion unit, a floating diffusion that is shared among a plurality of the pixels, and that holds the electric charge transferred from the holding unit, and a boost line through which the floating diffusion is boosted are included.
    Type: Grant
    Filed: April 15, 2022
    Date of Patent: August 8, 2023
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Yoshimichi Kumagai, Takashi Abe, Ryoto Yoshita, Ryo Fukui
  • Publication number: 20230215889
    Abstract: An imaging element is disclosed that includes: a semiconductor substrate; a multilayer wiring layer; a plurality of structures; and a light reflecting layer. The semiconductor substrate has a first surface as a light incidence surface and a second surface opposite to the first surface. A light receiving section of the semiconductor substrate generates electric charge through photoelectric conversion. The multilayer wiring layer has a plurality of wiring layers and is on the second surface side of the semiconductor substrate. The plurality of structures is in the multilayer wiring layer. The light reflecting layer is in the multilayer wiring layer, and forms a reflective region or a non-reflective region in a region with the interlayer insulating layer interposed in between. The region has none of the structures formed therein. The reflective region and the non-reflective region are substantially symmetrical with respect to the optical center of the pixel.
    Type: Application
    Filed: April 7, 2021
    Publication date: July 6, 2023
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Ryoto YOSHITA, Yoshimichi KUMAGAI, Naoyuki OSAWA, Kengo NAGATA, Masashi BANDO
  • Patent number: 11646342
    Abstract: The present disclosure relates to an imaging device and an electronic device that make it possible to obtain a better pixel signal. A photoelectric conversion part that converts received light into a charge; a holding part that holds a charge transferred from the photoelectric conversion part; and a light shielding part that shields light between the photoelectric conversion part and the holding part are provided. The photoelectric conversion part, the holding part, and the light shielding part are formed in a semiconductor substrate. The light shielding part of a transfer region that transfers the charge from the photoelectric conversion part to the holding part is formed as a non-penetrating light shielding part that does not penetrate the semiconductor substrate. The light shielding part other than the transfer region is formed as a penetrating light shielding part that penetrates the semiconductor substrate. The present technology is applicable to an imaging device.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: May 9, 2023
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Yoshimichi Kumagai, Takashi Abe, Ryoto Yoshita
  • Publication number: 20220311958
    Abstract: Provided is an imaging device and an electronic device which enable image capturing based on the global shutter system, without reducing the amount of saturated signal charge. Pixels each including a photoelectric conversion unit that converts light received thereon into electric charge, and a holding unit that holds the electric charge transferred from the photoelectric conversion unit, a floating diffusion that is shared among a plurality of the pixels, and that holds the electric charge transferred from the holding unit, and a boost line through which the floating diffusion is boosted are included.
    Type: Application
    Filed: April 15, 2022
    Publication date: September 29, 2022
    Inventors: Yoshimichi Kumagai, Takashi Abe, Ryoto Yoshita, Ryo Fukui
  • Patent number: 11330203
    Abstract: The present technology relates to an imaging device and an electronic device which enable image capturing based on the global shutter system, without reducing the amount of saturated signal charge. Pixels each including a photoelectric conversion unit that converts light received thereon into electric charge, and a holding unit that holds the electric charge transferred from the photoelectric conversion unit, a floating diffusion that is shared among a plurality of the pixels, and that holds the electric charge transferred from the holding unit, and a boost line through which the floating diffusion is boosted are included. The present technology is applicable, for example, to an imaging device to capture images on the basis of a global shutter system.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: May 10, 2022
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Yoshimichi Kumagai, Takashi Abe, Ryoto Yoshita, Ryo Fukui
  • Patent number: 11329078
    Abstract: Disclosed is a solid-state imaging device including a plurality of pixels and a plurality of on-chip lenses. The plurality of pixels are arranged in a matrix pattern. Each of the pixels has a photoelectric conversion portion configured to photoelectrically convert light incident from a rear surface side of a semiconductor substrate. The plurality of on-chip lenses are arranged for every other pixel. The on-chip lenses are larger in size than the pixels. Each of color filters at the pixels where the on-chip lenses are present has a cross-sectional shape whose upper side close to the on-chip lens is the same in width as the on-chip lens and whose lower side close to the photoelectric conversion portion is shorter than the upper side.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: May 10, 2022
    Assignee: SONY CORPORATION
    Inventors: Rena Suzuki, Hiroki Tojinbara, Ryoto Yoshita, Yoichi Ueda
  • Publication number: 20220103775
    Abstract: An imaging device including: an imaging unit in which a plurality of shared sections each including two pixel regions adjacent at least in a first direction is provided and the shared sections provided at closest positions in a second direction are disposed to shift in the first direction by the one pixel region; a photoelectric converter provided for each of the pixel regions; an electric charge holding unit that holds signal charge generated by the photoelectric converter; an electric charge voltage converter to which the signal charge is transferred from the electric charge holding unit; and a pixel transistor that is electrically coupled to the electric charge voltage converter. The second direction intersects the first direction. The pixel transistor is provided for each of the shared sections.
    Type: Application
    Filed: January 8, 2020
    Publication date: March 31, 2022
    Inventors: YOSHIMICHI KUMAGAI, TAKASHI ABE, RYOTO YOSHITA, MASASHI BANDO, NAOYUKI OSAWA
  • Publication number: 20220052088
    Abstract: A solid-state imaging device according to an embodiment of the present disclosure includes a light receiving surface, and two or more pixels opposed to the light receiving surface. Each of the pixels includes a photoelectric conversion section that performs photoelectric conversion on light entering via the light receiving surface, a first charge holding section that holds a charge transferred from the photoelectric conversion section, and a second charge holding section disposed at a position where all or a portion thereof overlaps the first charge holding section in a planar layout, and formed to have no electrical continuity to the first charge holding section. Each of the pixels further includes a first transfer transistor that transfers the charge held by the first charge holding section to a floating diffusion, and a second transfer transistor that transfers a charge held by the second charge holding section to the floating diffusion.
    Type: Application
    Filed: September 9, 2019
    Publication date: February 17, 2022
    Inventors: Ryoto Yoshita, Takafumi Takatsuka
  • Publication number: 20210266476
    Abstract: The present technology relates to an imaging device and an electronic device which enable image capturing based on the global shutter system, without reducing the amount of saturated signal charge. Pixels each including a photoelectric conversion unit that converts light received thereon into electric charge, and a holding unit that holds the electric charge transferred from the photoelectric conversion unit, a floating diffusion that is shared among a plurality of the pixels, and that holds the electric charge transferred from the holding unit, and a boost line through which the floating diffusion is boosted are included. The present technology is applicable, for example, to an imaging device to capture images on the basis of a global shutter system.
    Type: Application
    Filed: July 10, 2019
    Publication date: August 26, 2021
    Inventors: YOSHIMICHI KUMAGAI, TAKASHI ABE, RYOTO YOSHITA, RYO FUKUI
  • Patent number: 11069727
    Abstract: The imaging element includes, within a pixel, a semiconductor substrate, a photoelectric conversion unit formed in the semiconductor substrate, a first charge storage unit that stores a charge generated by the photoelectric conversion unit, and a first transfer gate unit formed on an opposite surface of the semiconductor substrate on an opposite side of a light incident surface and used for transfer of a charge from the photoelectric conversion unit to the first charge storage unit. The first transfer gate unit includes a first electrode embedded in a first trench formed in the semiconductor substrate from the opposite surface of the semiconductor substrate. The photoelectric conversion unit includes the first electrode, and a second electrode surrounding at least a portion of a periphery of the first electrode.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: July 20, 2021
    Assignee: SONY CORPORATION
    Inventors: Takashi Machida, Ryoto Yoshita
  • Publication number: 20210217787
    Abstract: The present disclosure relates to an imaging device and an electronic device that make it possible to obtain a better pixel signal. A photoelectric conversion part that converts received light into a charge, and a holding part that holds a charge transferred from the photoelectric conversion part are provided, the photoelectric conversion part and the holding part are formed in a semiconductor substrate having a predetermined thickness, and the holding part is formed with a thickness that is half or less of the predetermined thickness. A charge capturing region that captures a charge is further provided on a light incident side of a region where the holding part is formed. A light shielding part that shields light is formed between the photoelectric conversion part and the charge capturing region. The present technology is applicable to an imaging device.
    Type: Application
    Filed: March 30, 2021
    Publication date: July 15, 2021
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Yoshimichi KUMAGAI, Takashi ABE, Ryoto YOSHITA, Ikuhiro YAMAMURA
  • Publication number: 20210202565
    Abstract: The present disclosure relates to an imaging device and an electronic device that make it possible to obtain a better pixel signal. A photoelectric conversion part that converts received light into a charge; a holding part that holds a charge transferred from the photoelectric conversion part; and a light shielding part that shields light between the photoelectric conversion part and the holding part are provided. The photoelectric conversion part, the holding part, and the light shielding part are formed in a semiconductor substrate. The light shielding part of a transfer region that transfers the charge from the photoelectric conversion part to the holding part is formed as a non-penetrating light shielding part that does not penetrate the semiconductor substrate. The light shielding part other than the transfer region is formed as a penetrating light shielding part that penetrates the semiconductor substrate. The present technology is applicable to an imaging device.
    Type: Application
    Filed: March 16, 2021
    Publication date: July 1, 2021
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Yoshimichi KUMAGAI, Takashi ABE, Ryoto YOSHITA
  • Patent number: 11032499
    Abstract: A photoelectric converter generates a charge corresponding to the exposure amount during an exposure period. The generated-charge retention portion and the output charge retention portion retain the charge. The generated-charge transfer portion transfers the charge from the photoelectric converter to the generated-charge retention portion to perform the transfer after the elapse of the exposure period. The retained-charge transfer portion transfers the charge retained in the generated-charge retention portion to the output charge retention portion to perform the transfer.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: June 8, 2021
    Assignee: SONY CORPORATION
    Inventors: Yoshimichi Kumagai, Takashi Abe, Kazuyoshi Yamashita, Ryoto Yoshita
  • Patent number: 10991753
    Abstract: The present disclosure relates to an imaging device and an electronic device that make it possible to obtain a better pixel signal. A photoelectric conversion part that converts received light into a charge; a holding part that holds a charge transferred from the photoelectric conversion part; and a light shielding part that shields light between the photoelectric conversion part and the holding part are provided. The photoelectric conversion part, the holding part, and the light shielding part are formed in a semiconductor substrate. The light shielding part of a transfer region that transfers the charge from the photoelectric conversion part to the holding part is formed as a non-penetrating light shielding part that does not penetrate the semiconductor substrate. The light shielding part other than the transfer region is formed as a penetrating light shielding part that penetrates the semiconductor substrate. The present technology is applicable to an imaging device.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: April 27, 2021
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Yoshimichi Kumagai, Takashi Abe, Ryoto Yoshita
  • Patent number: 10991734
    Abstract: The present disclosure relates to an imaging device and an electronic device that make it possible to obtain a better pixel signal. A photoelectric conversion part that converts received light into a charge, and a holding part that holds a charge transferred from the photoelectric conversion part are provided, the photoelectric conversion part and the holding part are formed in a semiconductor substrate having a predetermined thickness, and the holding part is formed with a thickness that is half or less of the predetermined thickness. A charge capturing region that captures a charge is further provided on a light incident side of a region where the holding part is formed. A light shielding part that shields light is formed between the photoelectric conversion part and the charge capturing region. The present technology is applicable to an imaging device.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: April 27, 2021
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Yoshimichi Kumagai, Takashi Abe, Ryoto Yoshita, Ikuhiro Yamamura
  • Patent number: 10892293
    Abstract: The present technology relates to a solid-state imaging element, an imaging device, and an electronic device that can improve transfer efficiency of a charge accumulation unit (MEM) and can increase the number of saturation electrons Qs. In a case where a charge voltage conversion unit (FD) is connected to a center of a charge accumulation unit (MEM) in each pixel and pixels are arrayed in an array, a column in which photoelectric conversion units (PD) are arrayed and a column including charge voltage conversion units (FD) and pixel transistors are arrayed in parallel. The present technology can be applied to a CMOS image sensor.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: January 12, 2021
    Assignee: SONY CORPORATION
    Inventor: Ryoto Yoshita
  • Patent number: 10879280
    Abstract: A solid-state imaging device includes: a semiconductor substrate having a light incident surface; a photoelectric converter for each of the pixels; a charge accumulation section for each of the pixels; a first transfer transistor; a wiring layer on side opposite to the light incident surface; a first vertical electrode and a second vertical electrode extending from the surface opposite to the light incident surface to the photoelectric converter; a first light-blocking film in a thickness direction of the semiconductor substrate on at least a portion of a periphery of the photoelectric converter; and a second light-blocking film in a surface direction of the semiconductor substrate between the photoelectric converter and the charge accumulation section. The first vertical electrode and the second vertical electrode are disposed adjacently with a distance therebetween, and the distance is a half or less of a length of one side of the pixel.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: December 29, 2020
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Ryoto Yoshita, Takashi Machida, Yoshimichi Kumagai
  • Publication number: 20200403015
    Abstract: Disclosed is a solid-state imaging device including a plurality of pixels and a plurality of on-chip lenses. The plurality of pixels are arranged in a matrix pattern. Each of the pixels has a photoelectric conversion portion configured to photoelectrically convert light incident from a rear surface side of a semiconductor substrate. The plurality of on-chip lenses are arranged for every other pixel. The on-chip lenses are larger in size than the pixels. Each of color filters at the pixels where the on-chip lenses are present has a cross-sectional shape whose upper side close to the on-chip lens is the same in width as the on-chip lens and whose lower side close to the photoelectric conversion portion is shorter than the upper side.
    Type: Application
    Filed: September 2, 2020
    Publication date: December 24, 2020
    Applicant: Sony Corporation
    Inventors: Rena Suzuki, Hiroki Tojinbara, Ryoto Yoshita, Yoichi Ueda