Patents by Inventor Koichi Mizugaki

Koichi Mizugaki 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: 20230420299
    Abstract: A method for manufacturing a semiconductor device includes: forming a first through hole penetrating from a first surface to a second surface of a semiconductor substrate; forming a second insulating film at the first surface of the semiconductor substrate and a side surface of the first through hole; disposing a resist at a surface of the second insulating film from the first surface of the semiconductor substrate to an end portion of the side surface of the first through hole on a first surface side of the semiconductor substrate; wet-etching the second insulating film by using the resist as a mask; covering the first surface of the semiconductor substrate and the side surface of the first through hole with an organic insulating film; and forming a second conductive film at a surface of the organic insulating film.
    Type: Application
    Filed: June 22, 2023
    Publication date: December 28, 2023
    Inventors: Koichi Mizugaki, Tomoyuki Kamakura, Yasuke Matsuzawa
  • Patent number: 11818958
    Abstract: A vibration device includes a semiconductor substrate having a first surface and a second surface, an integrated circuit disposed on the first surface, a first terminal which is disposed on the second surface and to which a substrate potential is applied, a second terminal which is disposed on the second surface and to which a potential different from the substrate potential is applied, a first through electrode which is configured to electrically couple the first terminal and the integrated circuit to each other, a second through electrode which is configured to electrically couple the second terminal and the integrated circuit to each other, a frame which has an insulating property, a vibration element disposed on the first surface, and a lid bonded to the first surface, wherein the first through electrode is located outside the frame, and the second through electrode is located inside the frame.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: November 14, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Koichi Mizugaki
  • Publication number: 20230291353
    Abstract: A circuit board includes: a semiconductor substrate including a first surface and a second surface located at an opposite side from the first surface; a circuit provided at a first surface side; a first external electrode provided at a second surface side; a heater provided at the second surface side; and a plurality of through electrodes penetrating the first surface and the second surface and electrically coupling the circuit and the first external electrode or the heater. The heater and the first external electrode do not overlap each other in a plan view.
    Type: Application
    Filed: March 9, 2023
    Publication date: September 14, 2023
    Inventor: Koichi Mizugaki
  • Publication number: 20230208388
    Abstract: A vibrator device includes: a base having a first surface and a second surface in a front-back relationship with each other; a circuit element located at a first surface side of the base and having a third surface at the first surface side and a fourth surface in a front-back relationship with the third surface; a vibrator element located at a fourth surface side of the circuit element; a first bonding member that bonds the base to the circuit element; a second bonding member that bonds the circuit element to the vibrator element; and a lid bonded to the base so as to form a cavity that accommodates the circuit element and the vibrator element between the lid and the base, in which at least a part of the second bonding member overlaps the first bonding member in a plan view of the circuit element.
    Type: Application
    Filed: December 22, 2022
    Publication date: June 29, 2023
    Inventor: Koichi Mizugaki
  • Patent number: 11690297
    Abstract: A vibration device includes a substrate having a first surface and a second surface at an opposite side to the first surface, a vibration element disposed on the first surface, a first through electrode which penetrates the substrate, and is configured to electrically couple the power supply interconnection disposed on the second surface and the first circuit block disposed on the first surface, and a second through electrode which penetrates the substrate, and is configured to electrically couple the power supply interconnection and the second circuit block including an analog circuit disposed on the first circuit, wherein R1>R4 and R2>R4, in which R1 is an electric resistance of the first through electrode, R2 is an electric resistance of the second through electrode, and R4 is an electric resistance of a zone of the power supply interconnection coupling the first through electrode and the second through electrode.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: June 27, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Koichi Mizugaki
  • Patent number: 11575079
    Abstract: A vibration device includes a semiconductor substrate having a first surface and a second surface in an obverse-reverse relationship, a vibration element disposed on the first surface, a lid bonded to the first surface, an integrated circuit disposed on the first surface, a terminal disposed on the second surface, a through electrode which penetrates the semiconductor substrate, and is configured to electrically couple the terminal and the integrated circuit to each other, and a first capacitor which is provided with a first recess provided to the semiconductor substrate and opening in the first surface, an insulating film disposed on an inside surface of the first recess, and an electrically-conductive material filling the first recess, and has a first capacitance between the electrically-conductive material and the semiconductor substrate, wherein the electrically-conductive material does not have contact with the terminal at the second surface side.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: February 7, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Koichi Mizugaki
  • Patent number: 11404626
    Abstract: A vibrator device including a vibrator element, an IC substrate including a semiconductor substrate configured of a semiconductor having a first conductive type and a circuit electrically coupled to the vibrator element, the first conductive type being any one of an N-type and a P-type, and a lid directly bonded to the semiconductor substrate and configured of a semiconductor having the first conductive type.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: August 2, 2022
    Assignee: Seiko Epson Corporation
    Inventor: Koichi Mizugaki
  • Patent number: 11097667
    Abstract: A vibration device includes a first substrate including a first surface and a second surface opposite to the first surface; a second substrate including a third surface bonded to the second surface thereby forming an accommodation space between the first substrate and the second substrate, and a fourth surface opposite to the third surface; a vibration element accommodated in the accommodation space; and a first external coupling terminal arranged at the fourth surface and having a first position to where a first wire to be coupled. The first position being within an area overlapping a bonding area between the first substrate and the second substrate, as viewed in a plan view.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: August 24, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Koichi Mizugaki
  • Publication number: 20210159385
    Abstract: A vibration device includes a substrate having a first surface and a second surface at an opposite side to the first surface, a vibration element disposed on the first surface, a first through electrode which penetrates the substrate, and is configured to electrically couple the power supply interconnection disposed on the second surface and the first circuit block disposed on the first surface, and a second through electrode which penetrates the substrate, and is configured to electrically couple the power supply interconnection and the second circuit block including an analog circuit disposed on the first circuit, wherein R1>R4 and R2>R4, in which R1 is an electric resistance of the first through electrode, R2 is an electric resistance of the second through electrode, and R4 is an electric resistance of a zone of the power supply interconnection coupling the first through electrode and the second through electrode.
    Type: Application
    Filed: November 19, 2020
    Publication date: May 27, 2021
    Inventor: Koichi Mizugaki
  • Publication number: 20210098680
    Abstract: A vibration device includes a semiconductor substrate having a first surface and a second surface in an obverse-reverse relationship, a vibration element disposed on the first surface, a lid bonded to the first surface, an integrated circuit disposed on the first surface, a terminal disposed on the second surface, a through electrode which penetrates the semiconductor substrate, and is configured to electrically couple the terminal and the integrated circuit to each other, and a first capacitor which is provided with a first recess provided to the semiconductor substrate and opening in the first surface, an insulating film disposed on an inside surface of the first recess, and an electrically-conductive material filling the first recess, and has a first capacitance between the electrically-conductive material and the semiconductor substrate, wherein the electrically-conductive material does not have contact with the terminal at the second surface side.
    Type: Application
    Filed: September 24, 2020
    Publication date: April 1, 2021
    Inventor: Koichi Mizugaki
  • Publication number: 20210098682
    Abstract: A vibration device includes a semiconductor substrate having a first surface and a second surface, an integrated circuit disposed on the first surface, a first terminal which is disposed on the second surface and to which a substrate potential is applied, a second terminal which is disposed on the second surface and to which a potential different from the substrate potential is applied, a first through electrode which is configured to electrically couple the first terminal and the integrated circuit to each other, a second through electrode which is configured to electrically couple the second terminal and the integrated circuit to each other, a frame which has an insulating property, a vibration element disposed on the first surface, and a lid bonded to the first surface, wherein the first through electrode is located outside the frame, and the second through electrode is located inside the frame.
    Type: Application
    Filed: September 28, 2020
    Publication date: April 1, 2021
    Inventor: Koichi Mizugaki
  • Patent number: 10879868
    Abstract: A vibration device includes a first substrate that includes a first surface and a second surface; a second substrate that includes a third surface and a fourth surface; an intermediate substrate that is disposed between the first substrate and the second substrate and that includes a vibration element, a frame surrounding the vibration element, and a coupler linking the vibration element and the frame; a conductive first joining member that is located between the frame and the first substrate and that joins the frame and the second surface; a conductive second joining member that is located between the frame and the second substrate and that joins the frame and the third surface; an internal electrode disposed on the first substrate; and a first conductive member that is disposed between the first substrate and the intermediate substrate and that electrically couples the vibration element and the internal electrode.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: December 29, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Koichi Mizugaki
  • Patent number: 10843637
    Abstract: A vibration device includes: a base substrate which is a first conductivity type semiconductor substrate; a lid substrate; a vibration element disposed between the base substrate and the lid substrate; a wiring disposed on a surface of the base substrate at the lid substrate side; and a coupling member that electrically couples the wiring and the vibration element to each other. The base substrate includes a second conductivity type well, which is different from the first conductivity type, and a first conductivity type first contact area that is disposed in the well and that has a first contact surface which is a part of the surface. The wiring and the coupling member are in contact with the first contact surface, and are electrically coupled to each other via the first contact area.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: November 24, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Koichi Mizugaki
  • Publication number: 20200207282
    Abstract: A vibration device includes: a base substrate which is a first conductivity type semiconductor substrate; a lid substrate; a vibration element disposed between the base substrate and the lid substrate; a wiring disposed on a surface of the base substrate at the lid substrate side; and a coupling member that electrically couples the wiring and the vibration element to each other. The base substrate includes a second conductivity type well, which is different from the first conductivity type, and a first conductivity type first contact area that is disposed in the well and that has a first contact surface which is a part of the surface. The wiring and the coupling member are in contact with the first contact surface, and are electrically coupled to each other via the first contact area.
    Type: Application
    Filed: December 27, 2019
    Publication date: July 2, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Koichi MIZUGAKI
  • Publication number: 20200207283
    Abstract: A vibration device includes a first substrate including a first surface and a second surface opposite to the first surface; a second substrate including a third surface bonded to the second surface thereby forming an accommodation space between the first substrate and the second substrate, and a fourth surface opposite to the third surface; a vibration element accommodated in the accommodation space; and a first external coupling terminal arranged at the fourth surface and having a first position to where a first wire to be coupled. The first position being within an area overlapping a bonding area between the first substrate and the second substrate, as viewed in a plan view.
    Type: Application
    Filed: December 27, 2019
    Publication date: July 2, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Koichi MIZUGAKI
  • Publication number: 20200212874
    Abstract: A vibration device includes a first substrate that includes a first surface and a second surface; a second substrate that includes a third surface and a fourth surface; an intermediate substrate that is disposed between the first substrate and the second substrate and that includes a vibration element, a frame surrounding the vibration element, and a coupler linking the vibration element and the frame; a conductive first joining member that is located between the frame and the first substrate and that joins the frame and the second surface; a conductive second joining member that is located between the frame and the second substrate and that joins the frame and the third surface; an internal electrode disposed on the first substrate; and a first conductive member that is disposed between the first substrate and the intermediate substrate and that electrically couples the vibration element and the internal electrode.
    Type: Application
    Filed: December 27, 2019
    Publication date: July 2, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Koichi MIZUGAKI
  • Publication number: 20200058843
    Abstract: A vibrator device including a vibrator element, an IC substrate including a semiconductor substrate configured of a semiconductor having a first conductive type and a circuit electrically coupled to the vibrator element, the first conductive type being any one of an N-type and a P-type, and a lid directly bonded to the semiconductor substrate and configured of a semiconductor having the first conductive type.
    Type: Application
    Filed: August 15, 2019
    Publication date: February 20, 2020
    Inventor: Koichi MIZUGAKI
  • Patent number: 8888229
    Abstract: A method for forming a layer comprises (a) disposing a first droplet to two parts on an underlayer surface so as to form two dot patterns isolated each other on the underlayer surface, (b) fixing the two dot patterns to the underlayer surface, (c) giving lyophilicity with respect to a second droplet to at least the underlayer surface between the two dot patterns, and (d) disposing the second droplet to the underlayer surface between the two dot patterns so as to join the two dot patterns after the step (c).
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: November 18, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Tsuyoshi Shintate, Koichi Mizugaki, Kazuaki Sakurada, Kenji Wada
  • Patent number: 7839372
    Abstract: An electrooptic apparatus substrate and examination method therefor can be provided which can implement an examination without requiring bringing a probe into contact thereto from the outside and with satisfactory measuring accuracy. A substrate 1 of the present invention includes a video line 7 and transmission date portion 6 through multiple switching elements for writing a first potential signal in multiple pixels through a signal line. The substrate 1 further includes a display data reading circuit portion 4 having a differential amplifier 4a for lowering a lower potential and heightening a higher potential and outputting it to the signal line and a transmission gate portion 6 and video line 7 for reading the first potential signal and a reference second potential signal.
    Type: Grant
    Filed: August 8, 2005
    Date of Patent: November 23, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Tatsuya Ishii, Shigefumi Yamaji, Koichi Mizugaki
  • Patent number: 7798592
    Abstract: A droplet ejection head drive method includes (1) associating multiple nozzles with ranks corresponding to weights of droplets ejected from the nozzles, (2) generating drive waveforms for driving actuators of the nozzles and correcting the weights of the droplets to a predetermined weight, for each of the ranks, and (3) supplying the drive waveforms corresponding to the ranks of some of the nozzles selected according to drawing data, to actuators of the selected nozzles and ejecting droplets each having the predetermined weight from the selected nozzles onto a target.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: September 21, 2010
    Assignee: Seiko Epson Corporation
    Inventor: Koichi Mizugaki