Patents by Inventor Taketo Fukuro

Taketo Fukuro 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: 20230246048
    Abstract: Incident light transmitted through a semiconductor substrate is shielded at a boundary between pixels. An imaging element is provided with a pixel, a front surface side light shielding unit, and a back surface side light shielding unit. The pixel is provided with a photoelectric conversion unit that is arranged in a semiconductor substrate on a front surface side of which a wiring region is formed and performs photoelectric conversion of incident light applied from a back surface side of the semiconductor substrate. The front surface side light shielding unit is embedded on the front surface side of the semiconductor substrate at the boundary between the pixels to shield the incident light.
    Type: Application
    Filed: April 22, 2021
    Publication date: August 3, 2023
    Inventors: TAKETO FUKURO, SHINICHIRO NOUDO, YUMA ONO, YOHEI CHIBA
  • Patent number: 8901618
    Abstract: A solid-state imaging device, including a semiconductor substrate; a photoelectric conversion region in the semiconductor substrate that generates charges in response to light incident thereon; an electric charge holding region in the semiconductor substrate and capable of holding electric charges accumulated in the photoelectric conversion region until the electric charges are read out from the electric charge holding region; a transfer gate that effects transfer of electric charges generated in the photoelectric conversion region to the electric charge holding region; a light blocking film over an upper surface of the transfer gate; and an insulating layer over the substrate and between the semiconductor substrate and the light blocking film, wherein, a portion of the insulating layer over the photoelectric conversion region is more thinly formed than the insulating layer not over the photoelectric conversion region.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: December 2, 2014
    Assignee: Sony Corporation
    Inventors: Taketo Fukuro, Jun Okuno
  • Publication number: 20130341684
    Abstract: A solid-state imaging device, including a semiconductor substrate; a photoelectric conversion region in the semiconductor substrate that generates charges in response to light incident thereon; an electric charge holding region in the semiconductor substrate and capable of holding electric charges accumulated in the photoelectric conversion region until the electric charges are read out from the electric charge holding region; a transfer gate that effects transfer of electric charges generated in the photoelectric conversion region to the electric charge holding region; a light blocking film over an upper surface of the transfer gate; and an insulating layer over the substrate and between the semiconductor substrate and the light blocking film, wherein, a portion of the insulating layer over the photoelectric conversion region is more thinly formed than the insulating layer not over the photoelectric conversion region.
    Type: Application
    Filed: August 21, 2013
    Publication date: December 26, 2013
    Applicant: Sony Corporation
    Inventors: Taketo Fukuro, Jun Okuno
  • Patent number: 8530945
    Abstract: A solid-state image pickup element includes: a photoelectric conversion region formed in a semiconductor substrate; an electric charge holding region formed in the semiconductor substrate for holding electric charges accumulated in the photoelectric conversion region until the electric charges are read out; a transfer gate formed on the semiconductor substrate for transferring electric charges generated by photoelectric conversion in the photoelectric conversion region to the electric charge holding region, and a light blocking film formed on an upper surface of the transfer gate. In this case, a portion between the semiconductor substrate and the light blocking film is thinly formed as a light made incident to the photoelectric conversion region has a longer wavelength in a wavelength region.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: September 10, 2013
    Assignee: Sony Corporation
    Inventors: Taketo Fukuro, Jun Okuno
  • Publication number: 20110233707
    Abstract: A solid-state image pickup element includes: a photoelectric conversion region formed in a semiconductor substrate; an electric charge holding region formed in the semiconductor substrate for holding electric charges accumulated in the photoelectric conversion region until the electric charges are read out; a transfer gate formed on the semiconductor substrate for transferring electric charges generated by photoelectric conversion in the photoelectric conversion region to the electric charge holding region, and a light blocking film formed on an upper surface of the transfer gate. In this case, a portion between the semiconductor substrate and the light blocking film is thinly formed as a light made incident to the photoelectric conversion region has a longer wavelength in a wavelength region.
    Type: Application
    Filed: March 17, 2011
    Publication date: September 29, 2011
    Applicant: SONY CORPORATION
    Inventors: Taketo Fukuro, Jun Okuno
  • Patent number: 7309921
    Abstract: Leakage current generated in a PN junction diode is reduced, and charge-up current caused by plasma treatment in formation of wiring connected to the PN junction diode is controlled. An N+ region as a first conductive type impurity region provided in a Si substrate with an upper surface being exposed on one main surface of the Si substrate, a P+ polysilicon plug provided with a bottom being contacted with an upper surface of the N+ region, and wiring connected to a top of the P+ polysilicon plug are included.
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: December 18, 2007
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Taketo Fukuro
  • Publication number: 20070080404
    Abstract: A semiconductor device includes a substrate, a first oxide film lying on the substrate, a thin semiconductor film lying on the first oxide film, a first terminal formed on the semiconductor film, a second terminal formed on the semiconductor film, a semiconductor element formed on the semiconductor film and electrically connected between the first and second terminals, and a protective diode formed on the semiconductor film and electrically connected in between the second and first terminal in a forward direction.
    Type: Application
    Filed: September 20, 2006
    Publication date: April 12, 2007
    Applicant: OKI ELECTRIC INDUSTRY CO., LTD.
    Inventors: Taketo FUKURO, Masao OKIHARA
  • Publication number: 20050077631
    Abstract: Leakage current generated in a PN junction diode is reduced, and charge-up current caused by plasma treatment in formation of wiring connected to the PN junction diode is controlled. An N+ region as a first conductive type impurity region provided in a Si substrate with an upper surface being exposed on one main surface of the Si substrate, a P+ polysilicon plug provided with a bottom being contacted with an upper surface of the N+ region, and wiring connected to a top of the P+ polysilicon plug are included.
    Type: Application
    Filed: January 21, 2004
    Publication date: April 14, 2005
    Inventor: Taketo Fukuro