Patents by Inventor Ryoji Hasumi

Ryoji Hasumi 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: 20240014240
    Abstract: Provided is a solid-state imaging element capable of reducing random noise in a pixel and suppressing crosstalk between adjacent pixels. A solid-state imaging element according to the present disclosure includes: a substrate; a plurality of photoelectric conversion units that is provided in the substrate; a first insulation film that is provided between the plurality of photoelectric conversion units adjacent to each other among the plurality of photoelectric conversion units, and has a fixed charge provided on an inner wall of a trench penetrating between a first surface of the substrate and a second surface opposite to the first surface; a second insulation film that is provided on an inner side of the first insulation film in the trench; at least one transistor that is provided on the first surface of the substrate; and a third insulation film that is provided on both sides of the trench or along the trench when viewed from the first surface.
    Type: Application
    Filed: October 28, 2021
    Publication date: January 11, 2024
    Inventors: SHINICHI YOSHIDA, RYOJI HASUMI
  • Publication number: 20230170360
    Abstract: To provide an imaging apparatus and an electronic device of which transfer efficiency of electric charges is superior. The imaging apparatus includes a semiconductor substrate and a vertical transistor provided on the semiconductor substrate. The semiconductor substrate is provided with a hole portion that opens on a side of a first principal plane. The vertical transistor has a first gate electrode provided inside the hole portion and a first gate insulating film provided between an inner wall of the hole portion and the first gate electrode. A cross section of the first gate electrode cut along a plane parallel to the first principal plane has a shape being elongated in a direction of a crystallographic orientation of the semiconductor substrate.
    Type: Application
    Filed: January 28, 2021
    Publication date: June 1, 2023
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventor: Ryoji HASUMI
  • Publication number: 20220021853
    Abstract: An imaging device includes a first pixel group including first photoelectric conversion regions, and at least one first color filter on the first photoelectric conversion regions. The imaging device includes a second pixel group including second photoelectric conversion regions, and at least one second color filter on the second photoelectric conversion regions. The imaging device includes a dummy region between the first pixel group and the second pixel group in a first direction so that a first side of the dummy region is adjacent to the first pixel group and a second side of the dummy region is adjacent to the second pixel group.
    Type: Application
    Filed: November 28, 2019
    Publication date: January 20, 2022
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventor: Ryoji HASUMI
  • Patent number: 8536018
    Abstract: A low power maskless inter-well deep trench isolation structure and methods of manufacture such structure are provided. A method includes depositing a plurality of layers over a substrate, and forming a layer over the plurality of layers. The method also includes forming well structures in the substrate, and forming sidewall spacers at opposing sides of the layer. The method further includes forming a self-aligned deep trench in the substrate to below the well structures, by removing the sidewall spacers and portions of the substrate aligned with an opening formed by the removal of the sidewall spacers. The method also includes forming a shallow trench in alignment with the deep trench. The method further includes forming shallow trench isolation structures and deep trench isolation structures by filling the shallow trench and the deep trench with insulator material.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: September 17, 2013
    Assignees: International Business Machines Corporation, Toshiba America Electronic Components, Inc.
    Inventors: Brent A. Anderson, Andres Bryant, Josephine B. Chang, Michael A. Guillorn, Ryoji Hasumi, Edward J. Nowak, Mickey H. Yu
  • Patent number: 8193616
    Abstract: A Direct Silicon Bonded substrate can include a first substrate and a second substrate in which the second substrate can be rotated to an azimuthal twist angle of 45 degrees in comparison to the first substrate. Disclosed are a semiconductor device and a method for making a semiconductor device that includes a DSB substrate with an adjusted thickness based upon the threshold voltage (Vt). In other words, a thicker substrate or layer can correspond to a high threshold voltage (HVt) and a thinner substrate or layer can correspond to a low threshold voltage (LVt) in order to improve mobility in LVt devices.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: June 5, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masafumi Hamaguchi, Ryoji Hasumi
  • Publication number: 20120080777
    Abstract: According to certain embodiments, a semiconductor structure is formed having a gate oxide formed over a semiconductor substrate. The gate oxide is formed as to have three different regions characterized by a different average thickness of gate oxide in each region. A first oxidation process is performed on a semiconductor substrate having both a Si (110) orientation region and a Si (100) orientation region on a surface thereof. Gate oxide is formed at a faster rate on the Si (110) orientation region of the semiconductor substrate relative to the Si (100) orientation region. A portion of the gate oxide is selectively removed and a second oxidation process is performed to form additional gate oxide. A triple oxide semiconductor substrate is recovered with the gate oxide having three different thickness formed thereon. The triple oxide semiconductor substrate is formed using a decreased number of processing acts.
    Type: Application
    Filed: September 30, 2010
    Publication date: April 5, 2012
    Applicant: TOSHIBA AMERICA ELECTRONIC COMPONENTS, INC.
    Inventors: Masafumi Hamaguchi, Ryoji Hasumi
  • Publication number: 20100327395
    Abstract: A Direct Silicon Bonded substrate can include a first substrate and a second substrate in which the second substrate can be rotated to an azimuthal twist angle of 45 degrees in comparison to the first substrate. Disclosed are a semiconductor device and a method for making a semiconductor device that includes a DSB substrate with an adjusted thickness based upon the threshold voltage (Vt). In other words, a thicker substrate or layer can correspond to a high threshold voltage (HVt) and a thinner substrate or layer can correspond to a low threshold voltage (LVt) in order to improve mobility in LVt devices.
    Type: Application
    Filed: June 29, 2009
    Publication date: December 30, 2010
    Applicant: TOSHIBA AMERICA ELECTRONIC COMPONENTS, INC.
    Inventors: Masafumi Hamaguchi, Ryoji Hasumi
  • Publication number: 20090267156
    Abstract: Device structures and design structures for a static random access memory. The device structure includes a well of a first conductivity type in a semiconductor layer, first and second deep trench isolation regions in the semiconductor layer that laterally bound a device region in the well, and first and second pluralities of doped regions of a second conductivity type in the first device region. A shallow trench isolation region extends laterally across in the device region to connect the first and second deep trench isolation regions, and is disposed in the device region between the first and second pluralities of doped regions. The shallow trench isolation region extends from the top surface into the semiconductor layer to a first depth such that the well is continuous beneath the shallow trench isolation region. A gate stack controls carrier flow between a pair of the first plurality of doped regions.
    Type: Application
    Filed: April 29, 2008
    Publication date: October 29, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Brent A. Anderson, Andres Bryant, Josephine B. Chang, Michael A. Guillorn, Ryoji Hasumi, Edward J. Nowak, Mickey H. Yu
  • Publication number: 20090269897
    Abstract: Methods for fabricating dual-depth trench isolation regions for a memory cell. First and second deep trench isolation regions are formed in the semiconductor layer that laterally bound a device region in a well of a first conductivity type in the semiconductor layer. First and second pluralities of doped regions of a second conductivity type are formed in the device region. A shallow trench isolation region is formed that extends laterally across the device region from the first deep trench isolation region to the second deep trench isolation region. The shallow trench isolation region is disposed in the device region between the first and second pluralities of doped regions. The shallow trench isolation region extends into the semiconductor layer to a depth such that the well is continuous beneath the shallow trench isolation region. A gate stack controls carrier flow between a pair of the first plurality of doped regions.
    Type: Application
    Filed: April 29, 2008
    Publication date: October 29, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Brent A. Anderson, Andres Bryant, Josephine B. Chang, Michael A. Guillorn, Ryoji Hasumi, Edward J. Nowak, Mickey H. Yu
  • Publication number: 20090173967
    Abstract: This invention provides a strained-channel field effect transistor (FET) in which the semiconductor of the channel of the FET is formed in a compliant substrate layer disposed over a twist-bonded semiconductor interface. This FET geometry increases the efficacy of local stress elements such as stress liners and embedded lattice-mismatched source/drain regions by mechanically decoupling the semiconductor of the channel region from the underlying rigid substrate. These strained-channel FETs may be incorporated into complementary metal oxide semiconductor (CMOS) circuits in various combinations. In one embodiment of this invention, both pFETs and nFETs are in a twist-bonded (001) silicon layer on a (001) silicon base layer. In another embodiment, pFETs are in a twist-bonded (011) silicon layer on a (001) silicon base layer and nFETs are in a conventional, non-twist-bonded (001) silicon base layer.
    Type: Application
    Filed: January 4, 2008
    Publication date: July 9, 2009
    Applicants: INTERNATIONAL BUSINESS MACHINES CORPORATION, TOSHIBA AMERICA ELECTRONIC COMPONENTS, INC.
    Inventors: Masafumi Hamaguchi, Ryoji Hasumi, Haizhou Yin, Katherine L. Saenger
  • Patent number: 7222328
    Abstract: A semiconductor integrated circuit design tool includes a reference data defining module configured to define design data of one of a plurality of transistors implementing the semiconductor integrated circuit as reference data, a simulator configured to simulate each effective channel length of the transistors, based on the design data and a reference channel length based on the reference data, and an adjuster configured to adjust gate lengths of gate electrodes of the transistors to reduce a difference between the effective channel length and the reference channel length.
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: May 22, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Ryoji Hasumi, Masaaki Iwai
  • Patent number: 7045415
    Abstract: At present, Cu (copper) is being used as a wiring material. In an RF-CMOS device as a combination of an RF analog device and CMOS logic device, two electrodes of a MIM capacitor are formed from Cu having a large diffusion coefficient. To prevent Cu from diffusing to the capacitor insulating film of the MIM capacitor, diffusion prevention films having a function of preventing diffusion of Cu are interposed between the capacitor insulating film and the two electrodes. As a result, Cu forming the electrodes does not diffuse to the capacitor insulating film.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: May 16, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takashi Yoshitomi, Tatsuya Ohguro, Ryoji Hasumi, Hideki Kimijima, Takashi Yamaguchi, Masahiro Inohara
  • Publication number: 20060038171
    Abstract: A semiconductor integrated circuit design tool includes a reference data defining module configured to define design data of one of transistors implementing the semiconductor integrated circuit as reference data, a simulator configured to simulate on each effective channel length of the transistors, based on the design data and a reference channel length based on the reference data, and an adjuster configured to adjust gate lengths of gate electrodes of the transistors to reduce a difference between the effective channel length and the reference channel length.
    Type: Application
    Filed: August 10, 2005
    Publication date: February 23, 2006
    Inventors: Ryoji Hasumi, Masaaki Iwai
  • Publication number: 20050186748
    Abstract: A method of manufacturing a semiconductor device including a plurality of MIS transistors formed on a semiconductor substrate, includes forming a plurality of gate electrodes associated with the MIS transistors on the semiconductor substrate, with a plurality of gate insulating films interposed between the gate electrodes and the semiconductor substrate, respectively, and successively forming a plurality of impurity diffusion regions for LDD regions in the semiconductor substrate, at decreasing junction depths, respectively, by using lithography and ion implantation, such that each of the impurity diffusion regions being provided on both sides of a respective one of the gate electrodes.
    Type: Application
    Filed: January 21, 2005
    Publication date: August 25, 2005
    Inventors: Ryoji Hasumi, Katsura Miyashita
  • Patent number: 6894331
    Abstract: At present, Cu (copper) is being used as a wiring material. In an RF-CMOS device as a combination of an RF analog device and CMOS logic device, two electrodes of a MIM capacitor are formed from Cu having a large diffusion coefficient. To prevent Cu from diffusing to the capacitor insulating film of the MIM capacitor, diffusion prevention films having a function of preventing diffusion of Cu are interposed between the capacitor insulating film and the two electrodes. As a result, Cu forming the electrodes does not diffuse to the capacitor insulating film.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: May 17, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takashi Yoshitomi, Tatsuya Ohguro, Ryoji Hasumi, Hideki Kimijima, Takashi Yamaguchi, Masahiro Inohara
  • Publication number: 20050001255
    Abstract: At present, Cu (copper) is being used as a wiring material. In an RF-CMOS device as a combination of an RF analog device and CMOS logic device, two electrodes of a MIM capacitor are formed from Cu having a large diffusion coefficient. To prevent Cu from diffusing to the capacitor insulating film of the MIM capacitor, diffusion prevention films having a function of preventing diffusion of Cu are interposed between the capacitor insulating film and the two electrodes. As a result, Cu forming the electrodes does not diffuse to the capacitor insulating film.
    Type: Application
    Filed: July 30, 2004
    Publication date: January 6, 2005
    Inventors: Takashi Yoshitomi, Tatsuya Ohguro, Ryoji Hasumi, Hideki Kimijima, Takashi Yamaguchi, Masahiro Inohara
  • Publication number: 20010020713
    Abstract: At present, Cu (copper) is being used as a wiring material. In an RF-CMOS device as a combination of an RF analog device and CMOS logic device, two electrodes of a MIM capacitor are formed from Cu having a large diffusion coefficient. To prevent Cu from diffusing to the capacitor insulating film of the MIM capacitor, diffusion prevention films having a function of preventing diffusion of Cu are interposed between the capacitor insulating film and the two electrodes. As a result, Cu forming the electrodes does not diffuse to the capacitor insulating film.
    Type: Application
    Filed: December 13, 2000
    Publication date: September 13, 2001
    Inventors: Takashi Yoshitomi, Tatsuya Ohguro, Ryoji Hasumi, Hideki Kimijima, Takashi Yamaguchi, Masahiro Inohara