Patents by Inventor Ryohei Miyagawa

Ryohei Miyagawa 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: 9768226
    Abstract: A solid-state imaging device includes: a first electrode formed above a semiconductor substrate; a photoelectric conversion film formed on the first electrode and for converting light into signal charges; a second electrode formed on the photoelectric conversion film; a charge accumulation region electrically connected to the first electrode and for accumulating the signal charges converted from the light by the photoelectric conversion film; a reset gate electrode for resetting the charge accumulation region; an amplification transistor for amplifying the signal charges accumulated in the charge accumulation region; and a contact plug in direct contact with the charge accumulation region, comprising a semiconductor material, and for electrically connecting to each other the first electrode and the charge accumulation region.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: September 19, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yusuke Sakata, Mitsuyoshi Mori, Yutaka Hirose, Hiroshi Masuda, Hitoshi Kuriyama, Ryohei Miyagawa
  • Publication number: 20170221944
    Abstract: A solid-state imaging device includes: pixels arranged in a matrix; a vertical signal line provided for each column, conveying a pixel signal; a power line provided for each column, proving a power supply voltage; and a feedback signal line provided for each column, conveying a signal from a peripheral circuit to a pixel, in which each of the pixels includes: an N-type diffusion layer; a photoelectric conversion element above the N-type diffusion layer; and a charge accumulation node between the N-type diffusion layer and the photoelectric conversion element, accumulating signal charge generated in the photoelectric conversion element, the feedback signal line, a metal line which is a part of the charge accumulation node, the vertical signal line, and the power line are disposed in a second interconnect layer, and the vertical signal line and the power line are disposed between the feedback signal line and the metal line.
    Type: Application
    Filed: April 14, 2017
    Publication date: August 3, 2017
    Inventors: Tokuhiko TAMAKI, Hirohisa OHTSUKI, Ryohei MIYAGAWA, Motonori ISHII
  • Publication number: 20170170226
    Abstract: A solid-state imaging device according to the present disclosure includes: a charge storage region that stores a signal charge obtained through photoelectric conversion in a photoelectric conversion film; an amplification transistor that amplifies the signal charge stored in the charge storage region in a corresponding pixel; a contact plug that is electrically connected to the charge storage region and contains a semiconductor material; and a line that is disposed above the contact plug and contains a semiconductor material. The contact plug and the charge storage region are electrically connected, and the contact plug and a gate electrode of the amplification transistor are electrically connected via the line.
    Type: Application
    Filed: February 24, 2017
    Publication date: June 15, 2017
    Inventors: Mitsuyoshi MORI, Ryohei MIYAGAWA, Yoshiyuki OHMORI, Yoshihiro SATO, Yutaka HIROSE, Yusuke SAKATA, Toru OKINO
  • Patent number: 9653510
    Abstract: A solid-state imaging device includes: pixels arranged in a matrix; a vertical signal line provided for each column, conveying a pixel signal; a power line provided for each column, proving a power supply voltage; and a feedback signal line provided for each column, conveying a signal from a peripheral circuit to a pixel, in which each of the pixels includes: an N-type diffusion layer; a photoelectric conversion element above the N-type diffusion layer; and a charge accumulation node between the N-type diffusion layer and the photoelectric conversion element, accumulating signal charge generated in the photoelectric conversion element, the feedback signal line, a metal line which is a part of the charge accumulation node, the vertical signal line, and the power line are disposed in a second interconnect layer, and the vertical signal line and the power line are disposed between the feedback signal line and the metal line.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: May 16, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tokuhiko Tamaki, Hirohisa Ohtsuki, Ryohei Miyagawa, Motonori Ishii
  • Patent number: 9627431
    Abstract: A solid-state imaging device according to the present disclosure includes: a charge storage region that stores a signal charge obtained through photoelectric conversion in a photoelectric conversion film; an amplification transistor that amplifies the signal charge stored in the charge storage region in a corresponding pixel; a contact plug that is electrically connected to the charge storage region and contains a semiconductor material; and a line that is disposed above the contact plug and contains a semiconductor material. The contact plug and the charge storage region are electrically connected, and the contact plug and a gate electrode of the amplification transistor are electrically connected via the line.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: April 18, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Mitsuyoshi Mori, Ryohei Miyagawa, Yoshiyuki Ohmori, Yoshihiro Sato, Yutaka Hirose, Yusuke Sakata, Toru Okino
  • Patent number: 9491379
    Abstract: A solid-state image pickup device includes: a first pixel array which generates first pixel data; a second pixel array which generates second pixel data; a vertical scanning unit which drives the rows of the first pixel array and the rows of the second pixel array independently; and a signal processing circuit which outputs, as a single image signal, a pair of (i) the plurality of second pixel signals generated in the second pixel array in a first frame and (ii) the plurality of first pixel signals generated in the first pixel array in a second frame immediately after the first frame.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: November 8, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hideo Matsuya, Ryohei Miyagawa
  • Patent number: 9466641
    Abstract: A solid-state imaging device including: a semiconductor substrate of a first conductivity type, having a fixed electric potential; a dark-current drain region of a second conductivity type, formed on a portion of the semiconductor substrate; a connection region of the first conductivity type, formed on another portion of the semiconductor substrate where the dark-current drain region is not formed; a well region of the first conductivity type, covering the dark-current drain region and the connection region; and a first region and a second region, formed within the well region and constituting a part of a read transistor that reads signal charge generated by photoelectric conversion. The well region is maintained at a fixed electric potential by being connected to the semiconductor substrate via the connection region.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: October 11, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Ryohei Miyagawa
  • Patent number: 9386248
    Abstract: A pixel includes: a photoelectric conversion unit that photoelectrically converts incident light and has an upper electrode, a lower electrode, and a photoelectric conversion film interposed between the upper electrode and the lower electrode; an amplifying transistor that outputs a signal according to an amount of a signal charge generated in the photoelectric conversion unit; a charge transfer line that connects the lower electrode and the amplifying transistor; and an output line that outputs the signal from the amplifying transistor, wherein at least a part of the output line is disposed to overlap the lower electrode without another line interposed therebetween.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: July 5, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hirohisa Ohtsuki, Akira Tanaka, Ryohei Miyagawa
  • Patent number: 9324757
    Abstract: A solid-state imaging device includes: pixels arranged in a matrix, a semiconductor substrate; a first electrode formed above the semiconductor substrate for each of the pixels; a photoelectric conversion film formed on the first electrode, for photoelectric conversion of light into signal charge; a charge accumulation region formed in the semiconductor substrate for accumulating the signal charge generated through the photoelectric conversion in the photoelectric conversion film; a contact plug for electrically connecting the first electrode and the charge accumulation region in a corresponding pixel; a high-concentration impurity region formed on a surface of the charge accumulation region, in a region in contact with the contact plug; a surface impurity region formed on the surface of the charge accumulation region, in a region not in contact with the contact plug; and a low-concentration impurity region formed between the high-concentration impurity region and the surface impurity region.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: April 26, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Mitsuyoshi Mori, Yutaka Hirose, Yoshihisa Kato, Yusuke Sakata, Hiroshi Masuda, Ryohei Miyagawa
  • Patent number: 9263482
    Abstract: A solid-state imaging apparatus having a plurality of pixels, comprising: a substrate; a wiring layer formed on the substrate and including an insulating film and a plurality of wires; a plurality of lower electrodes formed on the wiring layer in one-to-one correspondence with the plurality of pixels; a photoelectric conversion film formed covering the plurality of lower electrodes; a light-transmissive upper electrode formed on the photoelectric conversion film; and a shield electrode extending through a gap between each pair of adjacent lower electrodes among the plurality of lower electrodes, the shield electrode having a fixed potential and being electrically insulated from the plurality of lower electrodes.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: February 16, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hiroyuki Doi, Mitsuo Yasuhira, Ryohei Miyagawa, Yoshiyuki Ohmori
  • Patent number: 9197830
    Abstract: A solid-state imaging device includes: an epilayer; pixel electrodes; a photoelectric converting film formed above the pixel electrodes and converting incident light into electric signals; a transparent electrode formed on the photoelectric converting film; charge accumulating regions of an n-type each (i) formed in the epilayer to correspond to one of the pixel electrodes, (ii) electrically connected to the one corresponding pixel electrode, and (iii) accumulating signal charges generated by the photoelectric converting film through the photo-electrically conversion; charge barrier regions of a p-type each formed in the epilayer to contact a bottom of a corresponding one of the charge accumulating regions; and charge draining regions of an n-type each formed in the epilayer to contact a bottom of a corresponding one of the charge barrier regions.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: November 24, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Mitsuyoshi Mori, Yusuke Sakata, Yutaka Hirose, Ryohei Miyagawa, Hiroyuki Doi, Masafumi Tsutsui
  • Publication number: 20150288895
    Abstract: A solid-state image pickup device includes: a first pixel array which generates first pixel data; a second pixel array which generates second pixel data; a vertical scanning unit which drives the rows of the first pixel array and the rows of the second pixel array independently; and a signal processing circuit which outputs, as a single image signal, a pair of (i) the plurality of second pixel signals generated in the second pixel array in a first frame and (ii) the plurality of first pixel signals generated in the first pixel array in a second frame immediately after the first frame.
    Type: Application
    Filed: June 19, 2015
    Publication date: October 8, 2015
    Inventors: Hideo MATSUYA, Ryohei MIYAGAWA
  • Publication number: 20150137199
    Abstract: A solid-state imaging device according to the present disclosure includes: a charge storage region that stores a signal charge obtained through photoelectric conversion in a photoelectric conversion film; an amplification transistor that amplifies the signal charge stored in the charge storage region in a corresponding pixel; a contact plug that is electrically connected to the charge storage region and contains a semiconductor material; and a line that is disposed above the contact plug and contains a semiconductor material. The contact plug and the charge storage region are electrically connected, and the contact plug and a gate electrode of the amplification transistor are electrically connected via the line.
    Type: Application
    Filed: December 16, 2014
    Publication date: May 21, 2015
    Inventors: Mitsuyoshi MORI, Ryohei MIYAGAWA, Yoshiyuki OHMORI, Yoshihiro SATO, Yutaka HIROSE, Yusuke SAKATA, Toru OKINO
  • Publication number: 20150123180
    Abstract: Each unit pixel includes a photoelectric converter, an n-type impurity region forming an accumulation diode together with the semiconductor region, the accumulation diode accumulating a signal charge generated by the photoelectric converter, an amplifier transistor including a gate electrode electrically connected to the impurity region, and an isolation region formed around the amplifier transistor and implanted with p-type impurities. The amplifier transistor includes an n-type source/drain region formed between the gate electrode and the isolation region, and a channel region formed under the gate electrode. A gap in the isolation region is, in a gate width direction, wider at a portion including the channel region than at a portion including the source/drain region.
    Type: Application
    Filed: November 28, 2014
    Publication date: May 7, 2015
    Inventors: Yoshihiro SATO, Ryohei MIYAGAWA, Tokuhiko TAMAKI, Junji HIRASE, Yoshiyuki OHMORI, Yoshiyuki MATSUNAGA
  • Publication number: 20150115339
    Abstract: A solid-state imaging device includes: pixels arranged in a matrix; a vertical signal line provided for each column, conveying a pixel signal; a power line provided for each column, proving a power supply voltage; and a feedback signal line provided for each column, conveying a signal from a peripheral circuit to a pixel, in which each of the pixels includes: an N-type diffusion layer; a photoelectric conversion element above the N-type diffusion layer; and a charge accumulation node between the N-type diffusion layer and the photoelectric conversion element, accumulating signal charge generated in the photoelectric conversion element, the feedback signal line, a metal line which is a part of the charge accumulation node, the vertical signal line, and the power line are disposed in a second interconnect layer, and the vertical signal line and the power line are disposed between the feedback signal line and the metal line.
    Type: Application
    Filed: November 26, 2014
    Publication date: April 30, 2015
    Inventors: Tokuhiko TAMAKI, Hirohisa OHTSUKI, Ryohei MIYAGAWA, Motonori ISHII
  • Publication number: 20150109503
    Abstract: A solid-state imaging device according to the present disclosure includes pixels arranged two-dimensionally, each of the pixels including: a metal electrode; a photoelectric conversion layer that is on the metal electrode and converts light into an electrical signal; a transparent electrode on the photoelectric conversion layer; an electric charge accumulation region that is electrically connected to the metal electrode and accumulates electric charges from the photoelectric conversion layer; an amplifier transistor that applies a signal voltage according to an amount of the electric charges in the electric charge accumulation region; and a reset transistor that resets electrical potential of the electric charge accumulation region, in which the reset transistor includes a gate oxide film thicker than a gate oxide film of the amplifier transistor.
    Type: Application
    Filed: December 22, 2014
    Publication date: April 23, 2015
    Inventors: Mitsuyoshi MORI, Hirohisa OHTSUKI, Yoshiyuki OHMORI, Yoshihiro SATO, Ryohei MIYAGAWA
  • Publication number: 20150077606
    Abstract: A pixel includes: a photoelectric conversion unit that photoelectrically converts incident light and has an upper electrode, a lower electrode, and a photoelectric conversion film interposed between the upper electrode and the lower electrode; an amplifying transistor that outputs a signal according to an amount of a signal charge generated in the photoelectric conversion unit; a charge transfer line that connects the lower electrode and the amplifying transistor; and an output line that outputs the signal from the amplifying transistor, wherein at least a part of the output line is disposed to overlap the lower electrode without another line interposed therebetween.
    Type: Application
    Filed: November 25, 2014
    Publication date: March 19, 2015
    Inventors: Hirohisa OHTSUKI, Akira TANAKA, Ryohei MIYAGAWA
  • Publication number: 20140246706
    Abstract: A solid-state imaging device includes: pixels arranged in a matrix, a semiconductor substrate; a first electrode formed above the semiconductor substrate for each of the pixels; a photoelectric conversion film formed on the first electrode, for photoelectric conversion of light into signal charge; a charge accumulation region formed in the semiconductor substrate for accumulating the signal charge generated through the photoelectric conversion in the photoelectric conversion film; a contact plug for electrically connecting the first electrode and the charge accumulation region in a corresponding pixel; a high-concentration impurity region formed on a surface of the charge accumulation region, in a region in contact with the contact plug; a surface impurity region formed on the surface of the charge accumulation region, in a region not in contact with the contact plug; and a low-concentration impurity region formed between the high-concentration impurity region and the surface impurity region.
    Type: Application
    Filed: May 16, 2014
    Publication date: September 4, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Mitsuyoshi MORI, Yutaka HIROSE, Yoshihisa KATO, Yusuke SAKATA, Hiroshi MASUDA, Ryohei MIYAGAWA
  • Publication number: 20140146211
    Abstract: A solid-state imaging device includes: an epilayer; pixel electrodes; a photoelectric converting film formed above the pixel electrodes and converting incident light into electric signals; a transparent electrode formed on the photoelectric converting film; charge accumulating regions of an n-type each (i) formed in the epilayer to correspond to one of the pixel electrodes, (ii) electrically connected to the one corresponding pixel electrode, and (iii) accumulating signal charges generated by the photoelectric converting film through the photo-electrically conversion; charge barrier regions of a p-type each formed in the epilayer to contact a bottom of a corresponding one of the charge accumulating regions; and charge draining regions of an n-type each formed in the epilayer to contact a bottom of a corresponding one of the charge barrier regions.
    Type: Application
    Filed: January 29, 2014
    Publication date: May 29, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Mitsuyoshi MORI, Yusuke SAKATA, Yutaka HIROSE, Ryohei MIYAGAWA, Hiroyuki DOI, Masafumi TSUTSUI
  • Patent number: 8723239
    Abstract: A solid-state imaging element includes a photodiode formed in an upper portion of a semiconductor substrate to perform a photoelectric conversion, a silicon dioxide film formed on the substrate to cover the photodiode, and a silicon nitride film formed on the silicon dioxide film. The silicon nitride film has a thinner portion smaller in thickness than at least an end portion of the silicon nitride film entirely or partly over the photodiode.
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: May 13, 2014
    Assignee: Panasonic Corporation
    Inventors: Hiroyuki Doi, Ryohei Miyagawa, Hitoshi Kuriyama