Patents by Inventor Masaaki Takizawa

Masaaki Takizawa 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: 20230396895
    Abstract: A pixel is included, the pixel including a photoelectric conversion portion configured to convert incident light to a charge by photoelectric conversion and accumulate the charge, a charge transfer unit configured to transfer the charge generated in the photoelectric conversion portion, a diffusion layer to which the charge is transferred through the charge transfer unit, the diffusion layer having a predetermined storage capacitance, a conversion unit configured to convert the charge transferred to the diffusion layer to a pixel signal, and connection wiring configured to connect the diffusion layer and the conversion unit. The connection wiring is connected to the diffusion layer and the conversion unit through contact wiring extending in a vertical direction with respect to a semiconductor substrate on which the diffusion layer is formed and is formed closer to the semiconductor substrate than other wiring provided in the pixel.
    Type: Application
    Filed: August 23, 2023
    Publication date: December 7, 2023
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Takeshi YANAGITA, Masaaki TAKIZAWA, Yuuji NISHIMURA, Shinichi ARAKAWA, Yuugo NAKAMURA, Yohei CHIBA
  • Patent number: 11778349
    Abstract: A pixel is included, the pixel including a photoelectric conversion portion configured to convert incident light to a charge by photoelectric conversion and accumulate the charge, a charge transfer unit configured to transfer the charge generated in the photoelectric conversion portion, a diffusion layer to which the charge is transferred through the charge transfer unit, the diffusion layer having a predetermined storage capacitance, a conversion unit configured to convert the charge transferred to the diffusion layer to a pixel signal, and connection wiring configured to connect the diffusion layer and the conversion unit. The connection wiring is connected to the diffusion layer and the conversion unit through contact wiring extending in a vertical direction with respect to a semiconductor substrate on which the diffusion layer is formed and is formed closer to the semiconductor substrate than other wiring provided in the pixel.
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: October 3, 2023
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Takeshi Yanagita, Masaaki Takizawa, Yuuji Nishimura, Shinichi Arakawa, Yuugo Nakamura, Yohei Chiba
  • Publication number: 20230057976
    Abstract: A wide dynamic range with single exposure is achieved. A solid-state imaging device according to an embodiment includes a first substrate including a photoelectric conversion element, and a second substrate including a capacitor positioned on a side opposite to a surface of incidence of light to the photoelectric conversion element in the first substrate, and configured to accumulate a charge transferred from the photoelectric conversion element.
    Type: Application
    Filed: November 3, 2022
    Publication date: February 23, 2023
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Masaaki TAKIZAWA, Yorito SAKANO
  • Patent number: 11470276
    Abstract: A pixel is included, the pixel including a photoelectric conversion portion configured to convert incident light to a charge by photoelectric conversion and accumulate the charge, a charge transfer unit configured to transfer the charge generated in the photoelectric conversion portion, a diffusion layer to which the charge is transferred through the charge transfer unit, the diffusion layer having a predetermined storage capacitance, a conversion unit configured to convert the charge transferred to the diffusion layer to a pixel signal, and connection wiring configured to connect the diffusion layer and the conversion unit. The connection wiring is connected to the diffusion layer and the conversion unit through contact wiring extending in a vertical direction with respect to a semiconductor substrate on which the diffusion layer is formed and is formed closer to the semiconductor substrate than other wiring provided in the pixel.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: October 11, 2022
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Takeshi Yanagita, Masaaki Takizawa, Yuuji Nishimura, Shinichi Arakawa, Yuugo Nakamura, Yohei Chiba
  • Publication number: 20220311964
    Abstract: A pixel is included, the pixel including a photoelectric conversion portion configured to convert incident light to a charge by photoelectric conversion and accumulate the charge, a charge transfer unit configured to transfer the charge generated in the photoelectric conversion portion, a diffusion layer to which the charge is transferred through the charge transfer unit, the diffusion layer having a predetermined storage capacitance, a conversion unit configured to convert the charge transferred to the diffusion layer to a pixel signal, and connection wiring configured to connect the diffusion layer and the conversion unit. The connection wiring is connected to the diffusion layer and the conversion unit through contact wiring extending in a vertical direction with respect to a semiconductor substrate on which the diffusion layer is formed and is formed closer to the semiconductor substrate than other wiring provided in the pixel.
    Type: Application
    Filed: June 14, 2022
    Publication date: September 29, 2022
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Takeshi YANAGITA, Masaaki TAKIZAWA, Yuuji NISHIMURA, Shinichi ARAKAWA, Yuugo NAKAMURA, Yohei CHIBA
  • Patent number: 11322534
    Abstract: The present disclosure relates to a solid-state imaging device and an electronic apparatus which allow reduction of optical crosstalk. In an example of FIG. 5B, a charge storage unit is formed by a method in which a hole is bored in a substrate, a diffusion layer is formed in a surface of the hole, and an insulating film and an upper electrode are formed so as to fill the hole. In an example of FIG. 5C, a charge storage unit is formed by a method in which a hole is bored in a substrate, a diffusion layer is formed in a half (one side) of a surface of the hole, and an insulating film and an upper electrode are formed so as to fill the hole. The present disclosure can be applied to a CMOS solid-state imaging device used for an imaging apparatus such as a camera, for example.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: May 3, 2022
    Assignee: SONY CORPORATION
    Inventors: Masaaki Takizawa, Yasushi Tateshita, Takahiro Toyoshima, Takuya Toyofuku, Yorito Sakano, Motonobu Torii
  • Patent number: 11252356
    Abstract: A pixel is included, the pixel including a photoelectric conversion portion configured to convert incident light to a charge by photoelectric conversion and accumulate the charge, a charge transfer unit configured to transfer the charge generated in the photoelectric conversion portion, a diffusion layer to which the charge is transferred through the charge transfer unit, the diffusion layer having a predetermined storage capacitance, a conversion unit configured to convert the charge transferred to the diffusion layer to a pixel signal, and connection wiring configured to connect the diffusion layer and the conversion unit. The connection wiring is connected to the diffusion layer and the conversion unit through contact wiring extending in a vertical direction with respect to a semiconductor substrate on which the diffusion layer is formed and is formed closer to the semiconductor substrate than other wiring provided in the pixel.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: February 15, 2022
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Takeshi Yanagita, Masaaki Takizawa, Yuuji Nishimura, Shinichi Arakawa, Yuugo Nakamura, Yohei Chiba
  • Publication number: 20220037388
    Abstract: A wide dynamic range with single exposure is achieved. A solid-state imaging device according to an embodiment includes a first substrate including a photoelectric conversion element , and a second substrate including a capacitor positioned on a side opposite to a surface of incidence of light to the photoelectric conversion element in the first substrate, and configured to accumulate a charge transferred from the photoelectric conversion element.
    Type: Application
    Filed: August 6, 2019
    Publication date: February 3, 2022
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Masaaki TAKIZAWA, Yorito SAKANO
  • Publication number: 20210329183
    Abstract: A pixel is included, the pixel including a photoelectric conversion portion configured to convert incident light to a charge by photoelectric conversion and accumulate the charge, a charge transfer unit configured to transfer the charge generated in the photoelectric conversion portion, a diffusion layer to which the charge is transferred through the charge transfer unit, the diffusion layer having a predetermined storage capacitance, a conversion unit configured to convert the charge transferred to the diffusion layer to a pixel signal, and connection wiring configured to connect the diffusion layer and the conversion unit. The connection wiring is connected to the diffusion layer and the conversion unit through contact wiring extending in a vertical direction with respect to a semiconductor substrate on which the diffusion layer is formed and is formed closer to the semiconductor substrate than other wiring provided in the pixel.
    Type: Application
    Filed: June 30, 2021
    Publication date: October 21, 2021
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Takeshi YANAGITA, Masaaki TAKIZAWA, Yuuji NISHIMURA, Shinichi ARAKAWA, Yuugo NAKAMURA, Yohei CHIBA
  • Patent number: 11082649
    Abstract: The present disclosure relates to a solid-state imaging device and an electronic device capable of effectively preventing blooming. Provided is a solid-state imaging device including: a pixel array portion in which a plurality of pixels is two-dimensionally arranged, in which the pixels each include an in-pixel capacitance and a counter electrode of the in-pixel capacitance, the in-pixel capacitance being provided on a side opposite to a light incident surface of a photoelectric conversion element provided in a semiconductor substrate, the counter electrode being provided in the semiconductor substrate. The present disclosure can be applied to, for example, a back-illuminated CMOS image sensor.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: August 3, 2021
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Masaaki Takizawa, Yorito Sakano
  • Patent number: 11050955
    Abstract: The present technology relates to a solid-state imaging device, a method for driving the solid-state imaging device, and an electronic apparatus, the solid-state imaging device being capable of expanding the dynamic range without deteriorating the image quality. The solid-state imaging device includes a pixel array section having a plurality of unit pixels and a drive section. Each of the unit pixels includes a first photoelectric conversion section, a second photoelectric conversion section which is less sensitive than the first photoelectric conversion section, a charge storage section configured to store charges generated by the second photoelectric conversion section, a charge-voltage conversion section, a first transfer gate section configured to transfer charges from the first photoelectric conversion section, and a second transfer gate section configured to combine the potential of the charge-voltage conversion section with the potential of the charge storage section.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: June 29, 2021
    Assignee: SONY CORPORATION
    Inventors: Yorito Sakano, Isao Hirota, Motonobu Torii, Masaaki Takizawa, Junichiro Azami, Motohashi Yuichi, Atsushi Suzuki
  • Publication number: 20210143193
    Abstract: The present disclosure relates to a solid-state imaging device and an electronic apparatus which allow reduction of optical crosstalk. In an example of FIG. 5B, a charge storage unit is formed by a method in which a hole is bored in a substrate, a diffusion layer is formed in a surface of the hole, and an insulating film and an upper electrode are formed so as to fill the hole. In an example of FIG. 5C, a charge storage unit is formed by a method in which a hole is bored in a substrate, a diffusion layer is formed in a half (one side) of a surface of the hole, and an insulating film and an upper electrode are formed so as to fill the hole. By placing the charge storage unit (capacitance element) formed in the substrate in the foregoing manner between PDs which are first photoelectric conversion units, it is possible to allow the capacitance element to function as a shield pair against crosstalk between the PDs in a unit pixel.
    Type: Application
    Filed: November 23, 2020
    Publication date: May 13, 2021
    Inventors: MASAAKI TAKIZAWA, YASUSHI TATESHITA, TAKAHIRO TOYOSHIMA, TAKUYA TOYOFUKU, YORITO SAKANO, MOTONOBU TORII
  • Patent number: 10917591
    Abstract: The present disclosure relates to a solid-state imaging device and a method of controlling a solid-state imaging device, and an electronic device for enabling appropriate expansion of a dynamic range with respect to an object moving at a high speed or an object having a large luminance difference between bright and dark to reduce motion distortion (motion artifact). Exposure of a plurality of pixels is individually controlled in units of pixels. The present disclosure can be applied to a solid-state imaging device.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: February 9, 2021
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Satoko Iida, Masaki Sakakibara, Yorito Sakano, Naosuke Asari, Masaaki Takizawa, Tomohiko Asatsuma, Shogo Furuya
  • Patent number: 10872919
    Abstract: Provided are a solid-state imaging device and an electronic apparatus that include a charge storage unit. The charge storage unit is formed by a method in which a hole is bored in a substrate, a diffusion layer is formed in a surface of the hole, and an insulating film and an upper electrode are formed so as to fill the hole. The charge storage unit is formed by a method in which a hole is bored in a substrate, a diffusion layer is formed in a half (one side) of a surface of the hole, and an insulating film and an upper electrode are formed so as to the hole.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: December 22, 2020
    Assignee: SONY CORPORATION
    Inventors: Masaaki Takizawa, Yasushi Tateshita, Takahiro Toyoshima, Takuya Toyofuku, Yorito Sakano, Motonobu Torii
  • Publication number: 20200314371
    Abstract: A pixel is included, the pixel including a photoelectric conversion portion configured to convert incident light to a charge by photoelectric conversion and accumulate the charge, a charge transfer unit configured to transfer the charge generated in the photoelectric conversion portion, a diffusion layer to which the charge is transferred through the charge transfer unit, the diffusion layer having a predetermined storage capacitance, a conversion unit configured to convert the charge transferred to the diffusion layer to a pixel signal, and connection wiring configured to connect the diffusion layer and the conversion unit. The connection wiring is connected to the diffusion layer and the conversion unit through contact wiring extending in a vertical direction with respect to a semiconductor substrate on which the diffusion layer is formed and is formed closer to the semiconductor substrate than other wiring provided in the pixel.
    Type: Application
    Filed: June 17, 2020
    Publication date: October 1, 2020
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Takeshi YANAGITA, Masaaki TAKIZAWA, Yuuji NISHIMURA, Shinichi ARAKAWA, Yuugo NAKAMURA, Yohei CHIBA
  • Patent number: 10728475
    Abstract: A pixel is included, the pixel including a photoelectric conversion portion configured to convert incident light to a charge by photoelectric conversion and accumulate the charge, a charge transfer unit configured to transfer the charge generated in the photoelectric conversion portion, a diffusion layer to which the charge is transferred through the charge transfer unit, the diffusion layer having a predetermined storage capacitance, a conversion unit configured to convert the charge transferred to the diffusion layer to a pixel signal, and connection wiring configured to connect the diffusion layer and the conversion unit. The connection wiring is connected to the diffusion layer and the conversion unit through contact wiring extending in a vertical direction with respect to a semiconductor substrate on which the diffusion layer is formed and is formed closer to the semiconductor substrate than other wiring provided in the pixel.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: July 28, 2020
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Takeshi Yanagita, Masaaki Takizawa, Yuuji Nishimura, Shinichi Arakawa, Yuugo Nakamura, Yohei Chiba
  • Patent number: 10721422
    Abstract: A pixel is included, the pixel including a photoelectric conversion portion configured to convert incident light to a charge by photoelectric conversion and accumulate the charge, a charge transfer unit configured to transfer the charge generated in the photoelectric conversion portion, a diffusion layer to which the charge is transferred through the charge transfer unit, the diffusion layer having a predetermined storage capacitance, a conversion unit configured to convert the charge transferred to the diffusion layer to a pixel signal, and connection wiring configured to connect the diffusion layer and the conversion unit. The connection wiring is connected to the diffusion layer and the conversion unit through contact wiring extending in a vertical direction with respect to a semiconductor substrate on which the diffusion layer is formed and is formed closer to the semiconductor substrate than other wiring provided in the pixel.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: July 21, 2020
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Takeshi Yanagita, Masaaki Takizawa, Yuuji Nishimura, Shinichi Arakawa, Yuugo Nakamura, Yohei Chiba
  • Publication number: 20200186732
    Abstract: The present disclosure relates to a solid-state imaging device and an electronic device capable of effectively preventing blooming. Provided is a solid-state imaging device including: a pixel array portion in which a plurality of pixels is two-dimensionally arranged, in which the pixels each include an in-pixel capacitance and a counter electrode of the in-pixel capacitance, the in-pixel capacitance being provided on a side opposite to a light incident surface of a photoelectric conversion element provided in a semiconductor substrate, the counter electrode being provided in the semiconductor substrate. The present disclosure can be applied to, for example, a back-illuminated CMOS image sensor.
    Type: Application
    Filed: May 18, 2018
    Publication date: June 11, 2020
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Masaaki TAKIZAWA, Yorito SAKANO
  • Patent number: 10616442
    Abstract: An image reading apparatus includes a first sensor that reads a first area of an image, a second sensor that reads a second area, and a processing circuit that generates a merge image by performing a merge process on first image data acquired by reading by the first sensor and second image data acquired by reading by the second sensor. The processing circuit calculates a correction value having a tendency of approaching zero as being away from an overlap area between the first area and the second area based on a reading result acquired by reading the overlap area by the first sensor and a reading result acquired by reading by the second sensor, and generates the merge image by performing an offset process using the correction value.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: April 7, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Masaaki Takizawa, Tsuneo Kasai
  • Publication number: 20200059615
    Abstract: The present technology relates to a solid-state imaging device, a method for driving the solid-state imaging device, and an electronic apparatus, the solid-state imaging device being capable of expanding the dynamic range without deteriorating the image quality. The solid-state imaging device includes a pixel array section having a plurality of unit pixels and a drive section. Each of the unit pixels includes a first photoelectric conversion section, a second photoelectric conversion section which is less sensitive than the first photoelectric conversion section, a charge storage section configured to store charges generated by the second photoelectric conversion section, a charge-voltage conversion section, a first transfer gate section configured to transfer charges from the first photoelectric conversion section, and a second transfer gate section configured to combine the potential of the charge-voltage conversion section with the potential of the charge storage section.
    Type: Application
    Filed: October 25, 2019
    Publication date: February 20, 2020
    Applicant: SONY CORPORATION
    Inventors: Yorito SAKANO, Isao HIROTA, Motonobu TORII, Masaaki TAKIZAWA, Junichiro AZAMI, Motohashi YUICHI, Atsushi SUZUKI