Patents by Inventor Hirohisa Yasukawa

Hirohisa Yasukawa 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: 20240194708
    Abstract: Reliability is improved in a semiconductor device using a heat conductive member. The semiconductor device includes a first semiconductor chip, a heat dissipation member, a heat conductive member, and an outflow prevention part. In a semiconductor package including the first semiconductor chip, the heat dissipation member, the heat conductive member, and the outflow prevention part, the heat conductive member is disposed between the heat dissipation member and the chip plane of the first semiconductor chip. The outflow prevention part prevents the outflow of the heat conductive member from the chip plane of the first semiconductor chip.
    Type: Application
    Filed: December 28, 2021
    Publication date: June 13, 2024
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Mitsuru ADACHI, Toshihiro MURAYAMA, Ryo INOMOTO, Hirohisa YASUKAWA, Yuki SUDA, Masaki HATANO, Toshiki KOYAMA, Harumi MIYAKI, Kiyohisa SAKAI
  • Publication number: 20240154385
    Abstract: In a semiconductor laser drive device, a wiring inductance in electrically connecting a semiconductor laser and a laser driver is reduced. The semiconductor laser drive device includes a substrate, the laser driver, and the semiconductor laser. The laser driver is built in the substrate. The semiconductor laser is mounted on one surface of the substrate of the semiconductor laser drive device. Connection wiring electrically connects the laser driver and the semiconductor laser by a wiring inductance of 0.5 nanohenries or less.
    Type: Application
    Filed: January 16, 2024
    Publication date: May 9, 2024
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventor: Hirohisa YASUKAWA
  • Patent number: 11962123
    Abstract: In a semiconductor laser drive device, a wiring inductance in electrically connecting a semiconductor laser and a laser driver is reduced. The semiconductor laser drive device includes a substrate, the laser driver, and the semiconductor laser. The laser driver is built in the substrate. The semiconductor laser is mounted on one surface of the substrate of the semiconductor laser drive device. Connection wiring electrically connects the laser driver and the semiconductor laser by a wiring inductance of 0.5 nanohenries or less.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: April 16, 2024
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventor: Hirohisa Yasukawa
  • Patent number: 11942495
    Abstract: A semiconductor device includes a semiconductor chip, a circuit board, a heat releasing plate, an adhesive member, and a conductive member. The circuit board transmits a signal of the semiconductor chip. The heat releasing plate has the semiconductor chip disposed thereon, and has an opening in a region on the outer side of a semiconductor chip placement region that is a region in which the semiconductor chip is disposed. The adhesive member is disposed in a region on the outer side of the opening on a different surface of the heat releasing plate from the surface on which the semiconductor chip is disposed, and bonds the circuit board and the heat releasing plate to each other. The conductive member connects the semiconductor chip and the circuit board to each other via the opening.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: March 26, 2024
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Daisuke Chino, Hiroyuki Shigeta, Shigekazu Ishii, Koyo Hosokawa, Hirohisa Yasukawa, Mitsuhito Kanatake, Kosuke Hareyama, Yutaka Ootaki, Kiyohisa Sakai, Atsushi Tsukada, Hirotaka Kobayashi, Ninao Sato, Yuki Yamane
  • Patent number: 11916021
    Abstract: To provide a semiconductor device further reduced in size. A semiconductor device including: a multilayer wiring board one surface of which is provided with an external connection terminal; and a plurality of active components that are provided to be stacked inside the multilayer wiring board and are connected to the external connection terminal via a connection via. The plurality of active components include a first active component provided on another surface side that is opposite to the one surface, and a second active component that is provided closer to the one surface than the first active component is and has a smaller planar area than the first active component.
    Type: Grant
    Filed: May 4, 2022
    Date of Patent: February 27, 2024
    Assignee: Sony Group Corporation
    Inventor: Hirohisa Yasukawa
  • Publication number: 20240006850
    Abstract: Provided is a semiconductor laser driving apparatus of a division emission scheme which reduces a delay of a light emission pulse due to an influence of a wiring length of a light-emitting element of a VCSEL located far from an LDD, and a vehicle control system including the semiconductor laser driving apparatus. The configuration includes a vertical cavity surface semiconductor laser (10) having a plurality of light-emitting elements (13), and at least two or more laser diode drivers (20) disposed around the vertical cavity surface semiconductor laser (10) and having a plurality of driving elements that is connected to the light-emitting elements (13) from a peripheral surface of the vertical cavity surface semiconductor laser (10) and causes the light-emitting elements (13) to emit light.
    Type: Application
    Filed: September 28, 2021
    Publication date: January 4, 2024
    Inventor: HIROHISA YASUKAWA
  • Publication number: 20220346288
    Abstract: To reduce the wiring inductance when establishing electrical connection between a semiconductor laser and a laser driver in a semiconductor laser driving apparatus. A semiconductor laser driving apparatus includes a substrate, a laser driver, and a semiconductor laser. The substrate incorporates the laser driver. The semiconductor laser is mounted on one surface of the substrate. Connection wiring electrically connects the laser driver and the semiconductor laser to each other with a wiring inductance of 0.5 nanohenries or less. A shield suppresses flow of electromagnetic waves to/from an outside of the semiconductor laser driving apparatus for at least one of the semiconductor laser and the laser driver.
    Type: Application
    Filed: July 21, 2020
    Publication date: October 27, 2022
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Masayuki NAGAO, Hirohisa YASUKAWA
  • Publication number: 20220344897
    Abstract: In a semiconductor laser drive device, wiring inductance between a semiconductor laser and a laser driver is reduced. A substrate has a laser driver built inside. A semiconductor laser is mounted on one surface of a substrate of the semiconductor laser drive device and emits irradiation light from an irradiation surface. A connection wiring electrically connects the laser driver and the semiconductor laser with a wiring inductance of 0.5 nH or less. A passive component is disposed to face a side of the semiconductor laser having the least number of pads and connects to the semiconductor laser and the laser driver.
    Type: Application
    Filed: July 21, 2020
    Publication date: October 27, 2022
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Nobuaki KAJI, Tatsuya OIWA, Hirohisa YASUKAWA
  • Publication number: 20220302674
    Abstract: An object of the present technique is to easily downsize a semiconductor laser driving apparatus incorporating a laser driver. A semiconductor laser driving apparatus includes a substrate, a laser driver, a semiconductor laser, side walls, and a test pad. The substrate incorporates the laser driver. The semiconductor laser is mounted on one surface of the substrate of the semiconductor laser driving apparatus. Connection wiring electrically connects the laser driver and the semiconductor laser to each other with a wiring inductance of 0.5 nanohenries or less. The outer walls surround a predetermined mounting region that is included in the one surface of the substrate and where the semiconductor laser is mounted. The test pad is provided in a region that is included in the one surface of the substrate but does not correspond to the mounting region.
    Type: Application
    Filed: August 12, 2020
    Publication date: September 22, 2022
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Kiyohisa SAKAI, Hirohisa YASUKAWA
  • Publication number: 20220293545
    Abstract: A light emitting device includes a first substrate, a light source on a first surface of the first substrate and that emits light toward an object, and a driver disposed in the first substrate and that drives the light source. The driver overlaps the light source in a plan view. The light emitting device includes at least one first via disposed in the first substrate and overlapping the driver in the plan view, and a first conductor on a second surface of the first substrate opposite the first surface and overlapping the light source, the driver, and the at least one first via in the plan view. The first conductor is connected to the at least one first via.
    Type: Application
    Filed: July 1, 2020
    Publication date: September 15, 2022
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Kiyohisa SAKAI, Hirohisa YASUKAWA, Masayuki NAGAO
  • Publication number: 20220294179
    Abstract: An object of the present technique is to improve safety in a semiconductor laser driving apparatus that diffuses laser light by a diffusion plate. A substrate incorporates a laser driver, and a semiconductor laser is mounted on one surface of the substrate. Connection wiring electrically connects the laser driver and the semiconductor laser to each other with a wiring inductance of 0.5 nanohenries or less. A diffusion plate diffuses laser light irradiated by the semiconductor laser. A transparent conductive film is formed on a predetermined surface of the diffusion plate. In addition, the laser driver drives the semiconductor laser to irradiate the laser light on the basis of an electric characteristic value of the conductive film.
    Type: Application
    Filed: July 20, 2020
    Publication date: September 15, 2022
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Kiyohisa SAKAI, Hirohisa YASUKAWA, Nobuaki KAJI
  • Publication number: 20220294182
    Abstract: An object of the present technique is to obtain excellent heat radiation characteristics with a simple structure in a semiconductor laser driving apparatus. A semiconductor laser driving apparatus includes a substrate, a laser driver, and a semiconductor laser. The substrate incorporates the laser driver. The semiconductor laser is mounted on one surface of the substrate. Connection wiring electrically connects the laser driver and the semiconductor laser to each other with a wiring inductance of 0.5 nanohenries or less. Side walls surround a region including the semiconductor laser on the surface of the substrate where the semiconductor laser is mounted. The side walls have a heat storage material therein.
    Type: Application
    Filed: June 8, 2020
    Publication date: September 15, 2022
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Hirohisa YASUKAWA, Nobuaki KAJI
  • Publication number: 20220294181
    Abstract: To reduce the wiring inductance between a semiconductor laser and a laser driver in a semiconductor laser driving apparatus. A substrate incorporates a laser driver. A semiconductor laser is mounted on one surface of the substrate of a semiconductor laser driving apparatus to emit irradiation light from an irradiation surface. Connection wiring electrically connects the laser driver and the semiconductor laser to each other with a wiring inductance of 0.5 nanohenries or less. A first optical element is provided on the irradiation surface side of the semiconductor laser. A second optical element is provided outside the first optical element on the irradiation surface side of the semiconductor laser.
    Type: Application
    Filed: July 20, 2020
    Publication date: September 15, 2022
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Nobuaki KAJI, Hirohisa YASUKAWA
  • Publication number: 20220285909
    Abstract: The present technique reduces the wiring inductance between a semiconductor laser and a laser driver in a semiconductor laser driving apparatus. A semiconductor laser driving apparatus includes a substrate, a laser driver, and a semiconductor laser. The substrate incorporates the laser driver. The semiconductor laser has at least one light emitting point. The semiconductor laser is mounted on one surface of the substrate in such a manner that an electrode of the light emitting point and a pattern of the substrate are connected to each other via a bump. Connection wiring electrically connects the laser driver and the semiconductor laser to each other with a wiring inductance of 0.5 nanohenries or less. A sealing portion seals a connection terminal portion of the semiconductor laser for the substrate.
    Type: Application
    Filed: July 2, 2020
    Publication date: September 8, 2022
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Motoi KIMURA, Hirohisa YASUKAWA, Nobuaki KAJI, Takashi KOBAYASHI
  • Publication number: 20220285908
    Abstract: To reduce the wiring inductance between a semiconductor laser and a laser driver in a semiconductor laser driving apparatus. A substrate incorporates a laser driver. A semiconductor laser is mounted on one surface of the substrate of a semiconductor laser driving apparatus to emit irradiation light from an irradiation surface. Connection wiring electrically connects the laser driver and the semiconductor laser to each other with a wiring inductance of 0.5 nanohenries or less. A temperature sensor measures a temperature relating to the semiconductor laser. A memory stores control data from the laser driver to the semiconductor laser in a manner corresponding to the temperature.
    Type: Application
    Filed: July 20, 2020
    Publication date: September 8, 2022
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Nobuaki KAJI, Hirohisa YASUKAWA
  • Publication number: 20220276344
    Abstract: A device includes a first substrate (903), a second substrate (100) on the first substrate (903), and a light emitting device (11) including a light source (300) on the second substrate (100) and that emits light toward an object. The light emitting device includes a driver (200) disposed in the second substrate (100) and that drives the light source (300). A portion of the driver (200) overlaps a first portion of the light source (300) in a plan view. The device includes an imaging device (12) on the first substrate adjacent to the light emitting device (11) and that senses light reflected from the object. The light-emitting device (11) reduces the wiring inductance by electrically connecting the light source (300) and the driver (200) via the connecting via (101). Further, the second substrate (100) includes a thermal via (102) for heat radiation. Considering that a certain number of thermal vias (102) are arranged immediately below the light source (300), the amount of overlap is desirably 50% or less.
    Type: Application
    Filed: July 2, 2020
    Publication date: September 1, 2022
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Hirohisa YASUKAWA, Masayuki NAGAO
  • Publication number: 20220278499
    Abstract: An object of the present technique is to reduce a wiring inductance between a semiconductor laser and a laser driver in a semiconductor laser driving apparatus. A semiconductor laser driving apparatus includes a substrate, a laser driver, and a semiconductor laser. The substrate incorporates the laser driver. The semiconductor laser is mounted on one surface of the substrate of the semiconductor laser driving apparatus. Connection wiring electrically connects the laser driver and the semiconductor laser to each other with a wiring inductance of 0.5 nanohenries or less. A sealing portion seals a connection terminal portion of the semiconductor laser for the substrate.
    Type: Application
    Filed: June 8, 2020
    Publication date: September 1, 2022
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventor: Hirohisa YASUKAWA
  • Publication number: 20220262737
    Abstract: To provide a semiconductor device further reduced in size. A semiconductor device including: a multilayer wiring board one surface of which is provided with an external connection terminal; and a plurality of active components that are provided to be stacked inside the multilayer wiring board and are connected to the external connection terminal via a connection via. The plurality of active components include a first active component provided on another surface side that is opposite to the one surface, and a second active component that is provided closer to the one surface than the first active component is and has a smaller planar area than the first active component.
    Type: Application
    Filed: May 4, 2022
    Publication date: August 18, 2022
    Applicant: SONY GROUP CORPORATION
    Inventor: Hirohisa YASUKAWA
  • Patent number: 11355444
    Abstract: To provide a semiconductor device further reduced in size. A semiconductor device including: a multilayer wiring board one surface of which is provided with an external connection terminal; and a plurality of active components that are provided to be stacked inside the multilayer wiring board and are connected to the external connection terminal via a connection via. The plurality of active components include a first active component provided on another surface side that is opposite to the one surface, and a second active component that is provided closer to the one surface than the first active component is and has a smaller planar area than the first active component.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: June 7, 2022
    Assignee: SONY CORPORATION
    Inventor: Hirohisa Yasukawa
  • Publication number: 20210233949
    Abstract: Deformation of a semiconductor chip is to be prevented in a semiconductor device in which a heat releasing plate and a circuit board are disposed. The semiconductor device includes the semiconductor chip, the circuit board, the heat releasing plate, an adhesive member, and a conductive member. The circuit board transmits a signal of the semiconductor chip. The heat releasing plate has the semiconductor chip disposed thereon, and has an opening in a region on the outer side of a semiconductor chip placement region that is a region in which the semiconductor chip is disposed. The adhesive member is disposed in a region on the outer side of the opening on a different surface of the heat releasing plate from the surface on which the semiconductor chip is disposed, and bonds the circuit board and the heat releasing plate to each other. The conductive member connects the semiconductor chip and the circuit board to each other via the opening.
    Type: Application
    Filed: June 21, 2019
    Publication date: July 29, 2021
    Inventors: DAISUKE CHINO, HIROYUKI SHIGETA, SHIGEKAZU ISHII, KOYO HOSOKAWA, HIROHISA YASUKAWA, MITSUHITO KANATAKE, KOSUKE HAREYAMA, YUTAKA OOTAKI, KIYOHISA SAKAI, ATSUSHI TSUKADA, HIROTAKA KOBAYASHI, NINAO SATO, YUKI YAMANE