Patents by Inventor Mineo Shimotsusa

Mineo Shimotsusa 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: 9508775
    Abstract: The first face of the pad is situated between the front-side face of the second semiconductor substrate and a hypothetical plane including and being parallel to the front-side face, and a second face of the pad that is a face on the opposite side of the first face is situated between the first face and the front-side face of the second semiconductor substrate, and wherein the second face is connected to the wiring structure so that the pad is electrically connected to the circuit arranged in the front-side face of the second semiconductor substrate via the wiring structure.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: November 29, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Masahiro Kobayashi, Mineo Shimotsusa
  • Publication number: 20160322415
    Abstract: A solid-state image pickup device capable of suppressing the generation of dark current and/or leakage current is provided. The solid-state image pickup device has a first substrate provided with a photoelectric converter on its primary face, a first wiring structure having a first bonding portion which contains a conductive material, a second substrate provided with a part of a peripheral circuit on its primary face, and a second wiring structure having a second bonding portion which contains a conductive material. In addition, the first bonding portion and the second bonding portion are bonded so that the first substrate, the first wiring structure, the second wiring structure, and the second substrate are disposed in this order. Furthermore, the conductive material of the first bonding portion and the conductive material of the second bonding portion are surrounded with diffusion preventing films.
    Type: Application
    Filed: July 13, 2016
    Publication date: November 3, 2016
    Inventor: Mineo Shimotsusa
  • Publication number: 20160284756
    Abstract: The present invention relates to a solid-state imaging apparatus including a first substrate having a plurality of photoelectric conversion units and a second substrate having a plurality of readout circuits. The first substrate is provided with a plurality of first conductive patterns that are electrically separated from one another and the second substrate is provided with a plurality of second conductive patterns that are electrically separated from one another. The first conductive patterns each include a first partial pattern extending in a first direction. The second conductive patterns each include a partial pattern extending in a second direction different from the first direction. The first partial pattern has a length extending in the first direction longer than a length thereof in the second direction.
    Type: Application
    Filed: June 13, 2016
    Publication date: September 29, 2016
    Inventors: Takeshi Ichikawa, Mineo Shimotsusa, Genzo Momma
  • Publication number: 20160284755
    Abstract: A semiconductor apparatus includes a conductive member penetrating through a first semiconductor layer, a first insulator layer, and a third insulator layer, and connecting a first conductor layer with a second conductor layer. The conductive member has a first region containing copper, and a second region containing a material different from the copper is located at least between a first region and the first semiconductor layer, between the first region and the first insulator layer, and between the first region and the third insulator layer. A diffusion coefficient of the copper to a material is lower than a diffusion coefficient of the copper to the first semiconductor layer and a diffusion coefficient of the copper to the first insulator layer.
    Type: Application
    Filed: June 7, 2016
    Publication date: September 29, 2016
    Inventor: Mineo Shimotsusa
  • Patent number: 9450012
    Abstract: A solid-state imaging device includes a first and second pixel regions. In the first pixel region, a photoelectric conversion unit, a floating diffusion region (FD), and a transferring transistor are provided. In the second pixel region, an amplifying transistor, and a resetting transistor are provided. A first element isolation portion is provided in the first pixel region, while a second element isolation portion is provided in the second pixel region. An amount of protrusion of an insulating film into a semiconductor substrate in the first element isolation portion is smaller, than that in the second element isolation portion.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: September 20, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Mineo Shimotsusa, Fumihiro Inui
  • Publication number: 20160260763
    Abstract: A photoelectric conversion device includes a first semiconductor substrate including a photoelectric conversion unit for generating a signal charge in accordance with an incident light, and a second semiconductor substrate including a signal processing unit for processing an electrical signal on the basis of the signal charge generated in the photoelectric conversion unit. The signal processing unit is situated in an orthogonal projection area from the photoelectric conversion unit to the second semiconductor substrate. A multilayer film including a plurality of insulator layers is provided between the first semiconductor substrate and the second semiconductor substrate. The thickness of the second semiconductor substrate is smaller than 500 micrometers. The thickness of the second semiconductor substrate is greater than the distance from the second semiconductor substrate and a light-receiving surface of the first semiconductor substrate.
    Type: Application
    Filed: May 16, 2016
    Publication date: September 8, 2016
    Inventors: Mineo Shimotsusa, Takeshi Ichikawa, Yasuhiro Sekine
  • Patent number: 9419030
    Abstract: A solid-state image pickup device capable of suppressing the generation of dark current and/or leakage current is provided. The solid-state image pickup device has a first substrate provided with a photoelectric converter on its primary face, a first wiring structure having a first bonding portion which contains a conductive material, a second substrate provided with a part of a peripheral circuit on its primary face, and a second wiring structure having a second bonding portion which contains a conductive material. In addition, the first bonding portion and the second bonding portion are bonded so that the first substrate, the first wiring structure, the second wiring structure, and the second substrate are disposed in this order. Furthermore, the conductive material of the first bonding portion and the conductive material of the second bonding portion are surrounded with diffusion preventing films.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: August 16, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Mineo Shimotsusa
  • Publication number: 20160227139
    Abstract: Provided is a solid-state imaging apparatus, including pixels each including: a photoelectric conversion unit; a charge accumulation unit; a transistor including a control electrode; a waveguide; and a light-shielding portion. The waveguide includes an incident portion and an output portion, the light-shielding portion includes a first portion that covers the control electrode of the transistor and a second portion that covers a part of the photoelectric conversion unit, the output portion and the photoelectric conversion unit are arranged with an interval therebetween, the interval between the output portion and the photoelectric conversion unit is larger than an interval between a lower end of the second portion of the light-shielding portion and the photoelectric conversion unit, and the interval between the output portion and the photoelectric conversion unit is smaller than an interval between an upper end of the second portion of the light-shielding portion and the photoelectric conversion unit.
    Type: Application
    Filed: April 8, 2016
    Publication date: August 4, 2016
    Inventors: Mineo Shimotsusa, Masatsugu Itahashi, Masahiro Kobayashi, Kazunari Kawabata, Takeshi Ichikawa
  • Patent number: 9397131
    Abstract: The present invention relates to a solid-state imaging apparatus including a first substrate having a plurality of photoelectric conversion units and a second substrate having a plurality of readout circuits. The first substrate is provided with a plurality of first conductive patterns that are electrically separated from one another and the second substrate is provided with a plurality of second conductive patterns that are electrically separated from one another. The first conductive patterns each include a first partial pattern extending in a first direction. The second conductive patterns each include a partial pattern extending in a second direction different from the first direction. The first partial pattern has a length extending in the first direction longer than a length thereof in the second direction.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: July 19, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takeshi Ichikawa, Mineo Shimotsusa, Genzo Momma
  • Patent number: 9391112
    Abstract: A semiconductor apparatus includes a conductive member penetrating through a first semiconductor layer, a first insulator layer, and a third insulator layer, and connecting a first conductor layer with a second conductor layer. The conductive member has a first region containing copper, and a second region containing a material different from the copper is located at least between a first region and the first semiconductor layer, between the first region and the first insulator layer, and between the first region and the third insulator layer. A diffusion coefficient of the copper to a material is lower than a diffusion coefficient of the copper to the first semiconductor layer and a diffusion coefficient of the copper to the first insulator layer.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: July 12, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Mineo Shimotsusa
  • Patent number: 9373658
    Abstract: A method for manufacturing a solid-state image pickup device is provided. The image pickup apparatus includes a photoelectric conversion portion disposed on the semiconductor substrate, a first insulating film over the photoelectric conversion portion, functioning as an antireflection film, a second insulating film on the first insulating film, disposed corresponding to the photoelectric conversion portion, and a waveguide having a clad and a core whose bottom is disposed on the second insulating film. The method includes forming an opening by anisotropically etching part of a member disposed over the photoelectric conversion portion, thereby forming the clad, and forming the core in the opening. In the method, the etching is performed under conditions where the etching rate of the second insulating film is lower than the etching rate of the member.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: June 21, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takehito Okabe, Kentarou Suzuki, Takashi Usui, Taro Kato, Mineo Shimotsusa, Shunsuke Takimoto
  • Patent number: 9368544
    Abstract: A photoelectric conversion device includes a first semiconductor substrate including a photoelectric conversion unit for generating a signal charge in accordance with an incident light, and a second semiconductor substrate including a signal processing unit for processing an electrical signal on the basis of the signal charge generated in the photoelectric conversion unit. The signal processing unit is situated in an orthogonal projection area from the photoelectric conversion unit to the second semiconductor substrate. A multilayer film including a plurality of insulator layers is provided between the first semiconductor substrate and the second semiconductor substrate. The thickness of the second semiconductor substrate is smaller than 500 micrometers. The thickness of the second semiconductor substrate is greater than the distance from the second semiconductor substrate and a light-receiving surface of the first semiconductor substrate.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: June 14, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Mineo Shimotsusa, Takeshi Ichikawa, Yasuhiro Sekine
  • Patent number: 9344653
    Abstract: Provided is a solid-state imaging apparatus, including pixels each including: a photoelectric conversion unit; a charge accumulation unit; a transistor including a control electrode; a waveguide; and a light-shielding portion. The waveguide includes an incident portion and an output portion, the light-shielding portion includes a first portion that covers the control electrode of the transistor and a second portion that covers a part of the photoelectric conversion unit, the output portion and the photoelectric conversion unit are arranged with an interval therebetween, the interval between the output portion and the photoelectric conversion unit is larger than an interval between a lower end of the second portion of the light-shielding portion and the photoelectric conversion unit, and the interval between the output portion and the photoelectric conversion unit is smaller than an interval between an upper end of the second portion of the light-shielding portion and the photoelectric conversion unit.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: May 17, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Mineo Shimotsusa, Masatsugu Itahashi, Masahiro Kobayashi, Kazunari Kawabata, Takeshi Ichikawa
  • Publication number: 20160126278
    Abstract: A manufacturing method includes a first process for forming a first gate electrode for a first MOS transistor and a second gate electrode for a second MOS transistor on a substrate including a semiconductor region defined by an insulator region for element isolation, a second process for masking a portion located above the semiconductor region of the first gate electrode to introduce an impurity to a source-drain region of the first MOS transistor, and a third process for forming a first conductor member being in contact with the portion of the first gate electrode through a first hole disposed on an insulator member covering the substrate and a second conductor member being in contact with the second gate electrode through a second hole disposed on the insulator member.
    Type: Application
    Filed: October 28, 2015
    Publication date: May 5, 2016
    Inventors: Mineo Shimotsusa, Masatsugu Itahashi, Yusuke Onuki, Nobuaki Kakinuma, Masato Fujita
  • Publication number: 20160126285
    Abstract: A solid-state imaging device includes: a first semiconductor substrate including a photoelectric conversion element; and a second semiconductor substrate including at least a part of a peripheral circuit arranged in a main face of the second semiconductor substrate, the peripheral circuit generating a signal based on the charge of the photoelectric conversion element, a main face of the first semiconductor substrate and the main face of the second semiconductor substrate being opposed to each other with sandwiching a wiring structure therebetween; a pad to be connected to an external terminal; and a protection circuit electrically connected to the pad and to the peripheral circuit, wherein the protection circuit is arranged in the main face of the second semiconductor substrate.
    Type: Application
    Filed: January 11, 2016
    Publication date: May 5, 2016
    Inventors: Masahiro Kobayashi, Mineo Shimotsusa
  • Patent number: 9324744
    Abstract: A solid-state image sensor includes a semiconductor layer, a multilayer wiring layer, an opening which extends through the semiconductor layer, and reaches an electrically conductive layer in the multilayer wiring layer, an electrically conductive member arranged in the opening so as to be connected to the electrically conductive layer, and a trench which surrounds the opening, and extends through the semiconductor layer, the trench having a space with no solid substance, and the semiconductor layer including a wall portion arranged between a side face defining the opening, and an inner-side face defining the trench to surround the electrically conductive member.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: April 26, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Mineo Shimotsusa
  • Patent number: 9312289
    Abstract: A light guide portion includes a low refractive index portion and a high refractive index portion. The low refractive index portion has a refractive index equal to or lower than that of an insulating layer. The high refractive index portion has a refractive index higher than that of the low refractive index portion. The low refractive index portion is located above a separating portion, and is sandwiched by the high refractive index portion in a first direction. A width in the first direction of the low refractive index portion at a first position distant from the separating portion in a second direction is narrower than a width in the first direction of the low refractive index portion at a second position closer to the separating portion than the first position in the second direction.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: April 12, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Echizen, Mineo Shimotsusa
  • Publication number: 20160064432
    Abstract: A method of manufacturing a solid-state image sensor, includes forming a first isolation region of a first conductivity type in a semiconductor layer having first and second surfaces, the forming the first isolation region including first implantation for implanting ions into the semiconductor layer through the first surface, forming charge accumulation regions of a second conductivity type in the semiconductor layer, performing first annealing, forming an interconnection on a side of the first surface of the semiconductor layer after the first annealing, and forming a second isolation region of the first conductivity type in the semiconductor layer, the forming the second isolation region including second implantation for implanting ions into the semiconductor layer through the second surface. The first and second isolation regions are arranged between the adjacent charge accumulation regions.
    Type: Application
    Filed: November 12, 2015
    Publication date: March 3, 2016
    Inventor: Mineo Shimotsusa
  • Publication number: 20160056189
    Abstract: The first face of the pad is situated between the front-side face of the second semiconductor substrate and a hypothetical plane including and being parallel to the front-side face, and a second face of the pad that is a face on the opposite side of the first face is situated between the first face and the front-side face of the second semiconductor substrate, and wherein the second face is connected to the wiring structure so that the pad is electrically connected to the circuit arranged in the front-side face of the second semiconductor substrate via the wiring structure.
    Type: Application
    Filed: November 5, 2015
    Publication date: February 25, 2016
    Inventors: Masahiro Kobayashi, Mineo Shimotsusa
  • Patent number: 9263487
    Abstract: A photoelectric conversion apparatus includes a semiconductor substrate having a photoelectric conversion portion. An insulator is provided on the semiconductor substrate. The insulator has a hole corresponding to the photoelectric conversion portion. A waveguide member is provided in the hole. An in-layer lens is provided on a side of the waveguide member farther from the semiconductor substrate. A first intermediate member is provided between the waveguide member and the in-layer lens. The first intermediate member has a lower refractive index than the in-layer lens.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: February 16, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Taro Kato, Mineo Shimotsusa, Hiroaki Sano, Takeshi Ichikawa, Yasuhiro Sekine, Mahito Shinohara, Genzo Momma