Patents by Inventor Taro Nishioka

Taro Nishioka 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: 20240112995
    Abstract: A semiconductor device includes a first die pad with a first obverse surface facing in z direction, a second die pad spaced from the first die pad and including a second obverse surface facing in z direction, a first semiconductor element on the first obverse surface, a second semiconductor element on the second obverse surface, an insulating element on the first or second obverse surface and located between the first and second semiconductor elements in x direction to relay signals between the first and second semiconductor elements while electrically insulating these semiconductor elements, and a wire bonded to the first semiconductor element and the first obverse surface. The first die pad includes a first bond portion bonded to the wire, and a first opening located between the first bond portion and the first semiconductor element in y direction and including an opening end in the first obverse surface.
    Type: Application
    Filed: November 29, 2021
    Publication date: April 4, 2024
    Inventors: Moe YAMAGUCHI, Hiroaki MATSUBARA, Yoshizo OSUMI, Tomohira KIKUCHI, Ryohei UMENO, Taro NISHIOKA
  • Publication number: 20240047438
    Abstract: A semiconductor device includes first and second semiconductor elements, and first and second circuits at different potentials. The second semiconductor element, electrically connected to the first semiconductor element, relays mutual signals between the first and the second circuits, while insulating them. The semiconductor device further includes a first terminal lead electrically connected to the first semiconductor element, a first wire connected to the first and the second semiconductor elements, and a second wire connected to the first semiconductor element and the first terminal lead. The first wire contains a first metal. The second wire includes a first core containing a second metal, and a first surface layer containing a third metal and covering the first core. The second metal has a smaller atomic number than that of the first metal. The third metal has a greater bonding strength with respect to the first terminal lead than the second metal.
    Type: Application
    Filed: November 22, 2021
    Publication date: February 8, 2024
    Applicant: ROHM CO., LTD.
    Inventors: Hiroaki MATSUBARA, Taro NISHIOKA, Yoshizo OSUMI, Tomohira KIKUCHI, Moe YAMAGUCHI, Ryohei UMENO
  • Publication number: 20240030109
    Abstract: A semiconductor device includes: a plurality of conductive members including a first die pad and a second die pad that are spaced apart from each other; a first semiconductor element mounted on the first die pad; a second semiconductor element mounted on the second die pad; and an insulator that is electrically connected to the first semiconductor element and the second semiconductor element, and that insulates the first semiconductor element and the second semiconductor element from each other. The plurality of conductive members include a third die pad spaced apart from the first die pad and the second die pad. The insulator is mounted on the third die pad.
    Type: Application
    Filed: September 26, 2023
    Publication date: January 25, 2024
    Inventors: Yoshizo OSUMI, Taro NISHIOKA, Hiroaki MATSUBARA
  • Publication number: 20240014107
    Abstract: A semiconductor device includes a plurality of conductive members including a die pad, a first semiconductor element and a second semiconductor element each located on the die pad, an insulating element electrically connected to the first semiconductor element and the second semiconductor element and insulating the first semiconductor element and the second semiconductor element from each other, and an insulating substrate interposed between the die pad and the insulating element and bonded to the die pad. The insulating element is bonded to the insulating substrate.
    Type: Application
    Filed: September 19, 2023
    Publication date: January 11, 2024
    Inventors: Yoshizo OSUMI, Hiroaki MATSUBARA, Tomohira KIKUCHI, Taro NISHIOKA
  • Publication number: 20230386983
    Abstract: A semiconductor device includes first and second semiconductor elements, a conductive support, a third semiconductor element and a sealing resin. The conductive support includes first and second leads spaced apart in a first direction. The first semiconductor element is supported by the first lead. The second semiconductor element is supported by the second lead. The third semiconductor element, supported by the conductive support, insulates the first semiconductor element and the second semiconductor element. The sealing resin covers a part of the conductive support. A distance d1 between the first lead and the second lead in the first direction is greater than distance d0 given by Equation below. In Equation below, Y is the number of years of insulation life (years) expected for the semiconductor device, A and B are constants determined by a material of the sealing resin, and X is a voltage (kVrms). d ? 0 = Y A B × 0.
    Type: Application
    Filed: August 14, 2023
    Publication date: November 30, 2023
    Inventors: Yoshizo OSUMI, Taro NISHIOKA, Tomohira KIKUCHI, Kenji FUJII, Hiroaki MATSUBARA
  • Publication number: 20230361007
    Abstract: A semiconductor device includes leads each having an obverse surface facing in a thickness direction and extending in a first direction crossing the thickness direction, a semiconductor element including electrodes connected to the obverse surfaces of the leads, and a sealing resin covering the leads and semiconductor element. The sealing resin includes a resin bottom surface opposite from the semiconductor element with respect to the leads in the thickness direction. The leads are mutually separated in a second direction orthogonal to the thickness direction and the first direction. Each lead includes a first reverse surface, a second reverse surface and a recessed surface facing away from the obverse surface in the thickness direction. The first and the second reverse surfaces are mutually separated with the recessed surface intervening in the first direction and exposed at the resin bottom surface. The recessed surface is covered with the sealing resin.
    Type: Application
    Filed: July 12, 2023
    Publication date: November 9, 2023
    Inventors: Kenji FUJII, Taro NISHIOKA, Shinya HIKITA
  • Publication number: 20230335529
    Abstract: A semiconductor device includes: a semiconductor element; an island lead on which the semiconductor element is mounted; a terminal lead electrically connected to the semiconductor element; a wire connected to the semiconductor element and the terminal lead; and a sealing resin covering the semiconductor element, the island lead, the terminal lead, and the wire. The terminal lead includes a base member having an obverse surface facing in a thickness direction of the terminal lead, and a metal layer located between the obverse surface and the wire. The base member has a greater bonding strength with respect to the sealing resin than the metal layer. The obverse surface includes an opposing side facing the island lead. The obverse surface includes a first portion that includes at least a portion of the opposing side and that is exposed from the metal layer.
    Type: Application
    Filed: June 23, 2023
    Publication date: October 19, 2023
    Inventors: Ryohei UMENO, Taro NISHIOKA, Hiroaki MATSUBARA, Yoshizo OSUMI, Tomohira KIKUCHI, Moe YAMAGUCHI
  • Publication number: 20230238317
    Abstract: There is provided a semiconductor device including: a lead frame including a first opening portion; a resin filled in the first opening portion; and a semiconductor element electrically connected to the lead frame, wherein a side wall surface of the lead frame in the first opening portion has a larger average surface roughness than an upper surface of the lead frame.
    Type: Application
    Filed: April 3, 2023
    Publication date: July 27, 2023
    Inventors: Bin ZHANG, Akinori NII, Taro NISHIOKA
  • Patent number: 11652040
    Abstract: There is provided a semiconductor device including: a lead frame including a first opening portion; a resin filled in the first opening portion; and a semiconductor element electrically connected to the lead frame, wherein a side wall surface of the lead frame in the first opening portion has a larger average surface roughness than an upper surface of the lead frame.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: May 16, 2023
    Assignee: ROHM CO., LTD.
    Inventors: Bin Zhang, Akinori Nii, Taro Nishioka
  • Publication number: 20220068776
    Abstract: A semiconductor device includes a first semiconductor chip and a second semiconductor chip to which different power-supply voltages are supplied, connection bonding wires connecting the first semiconductor chip and the second semiconductor chip to each other, and a sealing resin provided to fill a gap between a first lead frame on which the first semiconductor chip is mounted and a second lead frame on which the second semiconductor chip is mounted so as to cover the respective circumferences of the first semiconductor chip and the second semiconductor chip. The respective surfaces of the first lead frame and the second lead frame in the regions opposed to each other are covered with an insulating protection film including a material having higher electrical breakdown voltage than a material included in the sealing resin.
    Type: Application
    Filed: November 11, 2021
    Publication date: March 3, 2022
    Inventors: Yoshizo OSUMI, Taro NISHIOKA, Tomohira KIKUCHI, Tsunehisa ONO
  • Publication number: 20200365505
    Abstract: There is provided a semiconductor device including: a lead frame including a first opening portion; a resin filled in the first opening portion; and a semiconductor element electrically connected to the lead frame, wherein a side wall surface of the lead frame in the first opening portion has a larger average surface roughness than an upper surface of the lead frame.
    Type: Application
    Filed: May 5, 2020
    Publication date: November 19, 2020
    Inventors: Bin ZHANG, Akinori NII, Taro NISHIOKA
  • Patent number: 10794784
    Abstract: The present invention provides a sensor module for preventing the corrosion of electrode pads and a method of manufacturing the same. The sensor module A1 includes: an electronic component 2, having a mounting surface 2a and an installation surface 2b facing opposite sides, wherein the mounting surface 2a is disposed with electrode pads 21; an atmospheric pressure sensor 3, having a main surface 3a and an installation surface 3b facing opposite sides, and a side surface 3c connecting the main surface 3a to the installation surface 3b, and mounted on the mounting surface 2a of the electronic component 2 with the installation surface 3b facing the electronic component 2; a bonding wire 4, connected to the electrode pads 21; and a protective member 5, covering the electrode pads 21. The protective member 5 exposes a portion of the bonding wire 4 and is in contact with the side surface 3c of the atmospheric pressure sensor 3.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: October 6, 2020
    Assignee: ROHM CO., LTD.
    Inventors: Yuto Nishiyama, Taro Nishioka
  • Patent number: 10790258
    Abstract: An electronic device includes an electronic element, a plurality of first sub-electrodes arrayed in a first direction, a plurality of second sub-electrodes arrayed in a second direction that is orthogonal to the first direction, a dummy electrode, and a sealing resin. The sealing resin has a resin back surface from which the plurality of first sub-electrodes, the plurality of second sub-electrodes and the dummy electrode are exposed. The plurality of second sub-electrodes are located further in the first direction than any of the plurality of first sub-electrodes. The plurality of first sub-electrodes are located further in the second direction than any of the plurality of second sub-electrodes. The dummy electrode is located further in the first direction than any of the plurality of first sub-electrodes, and is located further in the second direction than any of the plurality of second sub-electrodes.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: September 29, 2020
    Assignee: ROHM CO., LTD.
    Inventors: Hiroaki Matsubara, Yasumasa Kasuya, Taro Nishioka
  • Publication number: 20190157236
    Abstract: An electronic device includes an electronic element, a plurality of first sub-electrodes arrayed in a first direction, a plurality of second sub-electrodes arrayed in a second direction that is orthogonal to the first direction, a dummy electrode, and a sealing resin. The sealing resin has a resin back surface from which the plurality of first sub-electrodes, the plurality of second sub-electrodes and the dummy electrode are exposed. The plurality of second sub-electrodes are located further in the first direction than any of the plurality of first sub-electrodes. The plurality of first sub-electrodes are located further in the second direction than any of the plurality of second sub-electrodes. The dummy electrode is located further in the first direction than any of the plurality of first sub-electrodes, and is located further in the second direction than any of the plurality of second sub-electrodes.
    Type: Application
    Filed: December 12, 2018
    Publication date: May 23, 2019
    Inventors: Hiroaki MATSUBARA, Yasumasa KASUYA, Taro NISHIOKA
  • Patent number: 10192845
    Abstract: An electronic device includes an electronic element, a plurality of first sub-electrodes arrayed in a first direction, a plurality of second sub-electrodes arrayed in a second direction that is orthogonal to the first direction, a dummy electrode, and a sealing resin. The sealing resin has a resin back surface from which the plurality of first sub-electrodes, the plurality of second sub-electrodes and the dummy electrode are exposed. The plurality of second sub-electrodes are located further in the first direction than any of the plurality of first sub-electrodes. The plurality of first sub-electrodes are located further in the second direction than any of the plurality of second sub-electrodes. The dummy electrode is located further in the first direction than any of the plurality of first sub-electrodes, and is located further in the second direction than any of the plurality of second sub-electrodes.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: January 29, 2019
    Assignee: ROHM CO., LTD.
    Inventors: Hiroaki Matsubara, Yasumasa Kasuya, Taro Nishioka
  • Patent number: 10014241
    Abstract: A semiconductor device is disclosed. The semiconductor device has a semiconductor chip, an island having an upper surface to which the semiconductor chip is bonded, a lead disposed around the island, a bonding wire extended between the surface of the semiconductor chip and the upper surface of the lead, and a resin package sealing the semiconductor chip, the island, the lead, and the bonding wire, while the lower surface of the island and the lower surface of the lead are exposed on the rear surface of the resin package, and the lead is provided with a recess concaved from the lower surface side and opened on a side surface thereof.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: July 3, 2018
    Assignee: ROHM CO., LTD.
    Inventors: Akihiro Koga, Taro Nishioka
  • Publication number: 20180182729
    Abstract: An electronic device includes an electronic element, a plurality of first sub-electrodes arrayed in a first direction, a plurality of second sub-electrodes arrayed in a second direction that is orthogonal to the first direction, a dummy electrode, and a sealing resin. The sealing resin has a resin back surface from which the plurality of first sub-electrodes, the plurality of second sub-electrodes and the dummy electrode are exposed. The plurality of second sub-electrodes are located further in the first direction than any of the plurality of first sub-electrodes. The plurality of first sub-electrodes are located further in the second direction than any of the plurality of second sub-electrodes. The dummy electrode is located further in the first direction than any of the plurality of first sub-electrodes, and is located further in the second direction than any of the plurality of second sub-electrodes.
    Type: Application
    Filed: February 26, 2018
    Publication date: June 28, 2018
    Inventors: Hiroaki MATSUBARA, Yasumasa KASUYA, Taro NISHIOKA
  • Publication number: 20180172531
    Abstract: The present invention provides a sensor module for preventing the corrosion of electrode pads and a method of manufacturing the same. The sensor module A1 includes: an electronic component 2, having a mounting surface 2a and an installation surface 2b facing opposite sides, wherein the mounting surface 2a is disposed with electrode pads 21; an atmospheric pressure sensor 3, having a main surface 3a and an installation surface 3b facing opposite sides, and a side surface 3c connecting the main surface 3a to the installation surface 3b, and mounted on the mounting surface 2a of the electronic component 2 with the installation surface 3b facing the electronic component 2; a bonding wire 4, connected to the electrode pads 21; and a protective member 5, covering the electrode pads 21. The protective member 5 exposes a portion of the bonding wire 4 and is in contact with the side surface 3c of the atmospheric pressure sensor 3.
    Type: Application
    Filed: December 4, 2017
    Publication date: June 21, 2018
    Inventors: Yuto Nishiyama, Taro Nishioka
  • Publication number: 20180122726
    Abstract: A semiconductor device is disclosed. The semiconductor device has a semiconductor chip, an island having an upper surface to which the semiconductor chip is bonded, a lead disposed around the island, a bonding wire extended between the surface of the semiconductor chip and the upper surface of the lead, and a resin package sealing the semiconductor chip, the island, the lead, and the bonding wire, while the lower surface of the island and the lower surface of the lead are exposed on the rear surface of the resin package, and the lead is provided with a recess concaved from the lower surface side and opened on a side surface thereof.
    Type: Application
    Filed: December 27, 2017
    Publication date: May 3, 2018
    Applicant: ROHM CO., LTD.
    Inventors: Akihiro KOGA, Taro NISHIOKA
  • Patent number: 9941233
    Abstract: An electronic device includes an electronic element, a plurality of first sub-electrodes arrayed in a first direction, a plurality of second sub-electrodes arrayed in a second direction that is orthogonal to the first direction, a dummy electrode, and a sealing resin. The sealing resin has a resin back surface from which the plurality of first sub-electrodes, the plurality of second sub-electrodes and the dummy electrode are exposed. The plurality of second sub-electrodes are located further in the first direction than any of the plurality of first sub-electrodes. The plurality of first sub-electrodes are located further in the second direction than any of the plurality of second sub-electrodes. The dummy electrode is located further in the first direction than any of the plurality of first sub-electrodes, and is located further in the second direction than any of the plurality of second sub-electrodes.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: April 10, 2018
    Assignee: ROHM CO., LTD.
    Inventors: Hiroaki Matsubara, Yasumasa Kasuya, Taro Nishioka