Patents by Inventor Akito Shimizu

Akito Shimizu 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: 11264313
    Abstract: A semiconductor device includes a molded body and an interconnection layer. The molded body includes a semiconductor chip, at least one terminal body disposed around the semiconductor chip and a resin member provided between the semiconductor chip and the terminal body. The molded body has a first surface, a second surface opposite to the first surface and a side surface connected to the first and second surfaces. The interconnection layer is provided on the first surface of the molded body. The interconnection layer includes an interconnect electrically connecting the semiconductor chip and the terminal body. The terminal body has first and second contact surfaces. The first contact surface is exposed at the first or second surface of the molded body. The second contact surface is connected to the first contact surface and exposed at the side surface of the molded body.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: March 1, 2022
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
    Inventors: Akito Shimizu, Yasuhisa Shintoku, Yoshihisa Imori, Hiroaki Kishi, Atsushi Hosokawa, Tomohiko Imada, Shinya Shimamura
  • Publication number: 20210391366
    Abstract: A semiconductor device according to an aspect of the present technology includes a low-concentration N-type region, a first high-concentration N-type region and a second high-concentration N-type region that are stacked with the low-concentration N-type region interposed therein, a gate electrode that surrounds the low-concentration N-type region as viewed from a stacking direction, which is a direction in which the low-concentration N-type region, the first high-concentration N-type region, and the second high-concentration N-type region are stacked, a first insulating film placed between the gate electrode and the low-concentration N-type region, and a second insulating film placed between the gate electrode and the first high-concentration N-type region. The first high-concentration N-type region is connected to one of a source electrode and a drain electrode. The second high-concentration N-type region is connected to the other of the source electrode and the drain electrode.
    Type: Application
    Filed: October 2, 2019
    Publication date: December 16, 2021
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Katsuhiko FUKASAKU, Koichi MATSUMOTO, Akito SHIMIZU
  • Patent number: 10840166
    Abstract: According to one embodiment, a semiconductor device includes a first semiconductor chip, a heat dissipation member provided on one surface of the first semiconductor chip and connected to the first semiconductor chip, and a sealing resin sealing the first semiconductor chip and the heat dissipation member. The heat dissipation member includes mutually interlaced metal fibers and a thermosetting resin.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: November 17, 2020
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
    Inventors: Kumiko Karouji, Morihiko Ikemizu, Yoshihisa Imori, Hiroaki Kishi, Tomohiko Imada, Akito Shimizu
  • Publication number: 20200083150
    Abstract: A semiconductor device includes a molded body and an interconnection layer. The molded body includes a semiconductor chip, at least one terminal body disposed around the semiconductor chip and a resin member provided between the semiconductor chip and the terminal body. The molded body has a first surface, a second surface opposite to the first surface and a side surface connected to the first and second surfaces. The interconnection layer is provided on the first surface of the molded body. The interconnection layer includes an interconnect electrically connecting the semiconductor chip and the terminal body. The terminal body has first and second contact surfaces. The first contact surface is exposed at the first or second surface of the molded body. The second contact surface is connected to the first contact surface and exposed at the side surface of the molded body.
    Type: Application
    Filed: February 1, 2019
    Publication date: March 12, 2020
    Inventors: Akito Shimizu, Yasuhisa Shintoku, Yoshihisa Imori, Hiroaki Kishi, Atsushi Hosokawa, Tomohiko Imada, Shinya Shimamura
  • Publication number: 20190295923
    Abstract: According to one embodiment, a semiconductor device includes a first semiconductor chip, a heat dissipation member provided on one surface of the first semiconductor chip and connected to the first semiconductor chip, and a sealing resin sealing the first semiconductor chip and the heat dissipation member. The heat dissipation member includes mutually interlaced metal fibers and a thermosetting resin.
    Type: Application
    Filed: September 12, 2018
    Publication date: September 26, 2019
    Inventors: Kumiko Karouji, Morihiko Ikemizu, Yoshihisa Imori, Hiroaki Kishi, Tomohiko Imada, Akito Shimizu
  • Patent number: 10347551
    Abstract: A semiconductor package comprises a resin material, a semiconductor chip in the resin material, and a metal member in the resin material. The metal member has a first surface that faces the semiconductor chip and a second surface that is opposed to the first surface. The first surface of the metal member has a plurality of first recess portions formed thereon. The first recess portions extend into the metal member and have an opening width that is less than a bottom width.
    Type: Grant
    Filed: September 4, 2017
    Date of Patent: July 9, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroaki Kishi, Akito Shimizu
  • Publication number: 20190198482
    Abstract: A semiconductor device includes a first supporting body, a first adhesive body, a first chip, a second adhesive body, a second chip, and a resin sealing member. The first adhesive body is provided on the first supporting body. The first chip includes an integrated circuit, and is provided on the first adhesive body. The second adhesive body is provided on the first chip. The second chip is provided on the second adhesive body. A coefficient of linear expansion of the second chip is not less than ?75% and not more than +50% of that of the first chip. A thickness of the second chip is not less than 0.3 times and not more than 1.7 times of that of the first chip. The resin sealing member is provided around the first supporting body, the first and second adhesive bodies, and the first and second chip.
    Type: Application
    Filed: March 14, 2018
    Publication date: June 27, 2019
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
    Inventor: Akito SHIMIZU
  • Publication number: 20180076107
    Abstract: A semiconductor package comprises a resin material, a semiconductor chip in the resin material, and a metal member in the resin material. The metal member has a first surface that faces the semiconductor chip and a second surface that is opposed to the first surface. The first surface of the metal member has a plurality of first recess portions formed thereon. The first recess portions extend into the metal member and have an opening width that is less than a bottom width.
    Type: Application
    Filed: September 4, 2017
    Publication date: March 15, 2018
    Inventors: Hiroaki KISHI, Akito SHIMIZU
  • Publication number: 20170309547
    Abstract: A method for manufacturing a semiconductor device includes preparing a lead frame that includes a die pad including a first plane and a second plane located on an opposite side of the first plane, and a plurality of leads arranged next to the die pad, mounting a semiconductor chip including a surface, a plurality of electrodes formed over the surface, and a reverse side located on an opposite side of the surface over a chip mounting area of the first plane of the die pad, electrically coupling parts of the electrodes of the semiconductor chip and the leads through a plurality of first wires and electrically coupling other parts of the electrodes and the die pad through a second wire after the mounting the semiconductor chip, and after the electrically coupling, sealing the semiconductor chip, the first wires, and the second wire with a resin.
    Type: Application
    Filed: July 7, 2017
    Publication date: October 26, 2017
    Inventors: Akito SHIMIZU, Kenji Nishikawa, Sadayuki Moroi, Tomoo Imura
  • Patent number: 9741641
    Abstract: A semiconductor device, includes a die pad that has a first main surface and a second main surface located on the opposite side of the first main surface; a lead arranged next to the die pad; a semiconductor chip that has a surface, a first electrode and a second electrode formed on the surface, and a reverse side located on the opposite side of the surface, and is mounted on a chip mounting area of the first main of the die pad; a first wire that electrically couples the first electrode of the semiconductor chip and the lead; a second wire that electrically couples the second electrode of the semiconductor chip and the die pad; and a sealed body that seals the semiconductor chip, the first wire, and the second wire.
    Type: Grant
    Filed: January 16, 2016
    Date of Patent: August 22, 2017
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Akito Shimizu, Kenji Nishikawa, Sadayuki Moroi, Tomoo Imura
  • Patent number: 9368432
    Abstract: A technique capable of enhancing a reliability of a semiconductor device is provided. A semiconductor device has a die pad on which a semiconductor chip is mounted. The die pad is sealed with resin so that a lower surface located on an opposite side of an upper surface on which the semiconductor chip is mounted is exposed. Also, the die pad has a central part including a region in which the semiconductor chip is mounted and a peripheral edge part provided next to the central part in a planar view. In addition, a step surface formed so that a height of the peripheral edge part becomes higher than a height of the central part is provided at a boundary between the central part and the peripheral edge part.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: June 14, 2016
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Akito Shimizu, Shirou Okada
  • Publication number: 20160133548
    Abstract: A semiconductor device, includes a die pad that has a first main surface and a second main surface located on the opposite side of the first main surface; a lead arranged next to the die pad; a semiconductor chip that has a surface, a first electrode and a second electrode formed on the surface, and a reverse side located on the opposite side of the surface, and is mounted on a chip mounting area of the first main of the die pad; a first wire that electrically couples the first electrode of the semiconductor chip and the lead; a second wire that electrically couples the second electrode of the semiconductor chip and the die pad; and a sealed body that seals the semiconductor chip, the first wire, and the second wire.
    Type: Application
    Filed: January 16, 2016
    Publication date: May 12, 2016
    Inventors: Akito SHIMIZU, Kenji NISHIKAWA, Sadayuki MOROI, Tomoo lmura
  • Patent number: 9293396
    Abstract: A method for manufacturing a semiconductor device, includes: (a) preparing a lead frame that includes a die pad having a first plane and a second plane located on the opposite side of the first plane, and a plurality of leads arranged next to the die pad; (b) mounting a semiconductor chip having a surface, a plurality of electrodes formed over the surface, and a reverse side located on the opposite side of the surface over a chip mounting area of the first plane of the die pad; (c) electrically coupling parts of the electrodes of the semiconductor chip and the leads through a plurality of first wires and electrically coupling the other parts of the electrodes and the die pad through a second wire.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: March 22, 2016
    Assignee: Renesas Electronics Corporation
    Inventors: Akito Shimizu, Kenji Nishikawa, Sadayuki Moroi, Tomoo Imura
  • Publication number: 20150194368
    Abstract: A method for manufacturing a semiconductor device, includes: (a) preparing a lead frame that includes a die pad having a first plane and a second plane located on the opposite side of the first plane, and a plurality of leads arranged next to the die pad; (b) mounting a semiconductor chip having a surface, a plurality of electrodes formed over the surface, and a reverse side located on the opposite side of the surface over a chip mounting area of the first plane of the die pad; (c) electrically coupling parts of the electrodes of the semiconductor chip and the leads through a plurality of first wires and electrically coupling the other parts of the electrodes and the die pad through a second wire.
    Type: Application
    Filed: March 16, 2015
    Publication date: July 9, 2015
    Inventors: Akito SHIMIZU, Kenji Nishikawa, Sadayuki Moroi, Tomoo Imura
  • Patent number: 9018745
    Abstract: A method according to the invention has a bonding process of mounting a semiconductor chip on an upper surface of a die pad that has the upper surface whose area is larger than a reverse side of the semiconductor chip. It also has a sealed body formation process of sealing the semiconductor chip so that an undersurface opposite to the upper surface of the die pad may be exposed after the bonding process. Here, the upper surface of the die pad is arranged around an area over which the semiconductor chip is mounted, and has a hollow part arrangement area in which a groove or multiple holes are formed. Moreover, surface roughness of the upper surface is made coarser than surface roughness of the undersurface.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: April 28, 2015
    Assignee: Renesas Corporation
    Inventors: Akito Shimizu, Kenji Nishikawa, Sadayuki Moroi, Tomoo Imura
  • Publication number: 20140353809
    Abstract: A technique capable of enhancing a reliability of a semiconductor device is provided. A semiconductor device has a die pad on which a semiconductor chip is mounted. The die pad is sealed with resin so that a lower surface located on an opposite side of an upper surface on which the semiconductor chip is mounted is exposed. Also, the die pad has a central part including a region in which the semiconductor chip is mounted and a peripheral edge part provided next to the central part in a planar view. In addition, a step surface formed so that a height of the peripheral edge part becomes higher than a height of the central part is provided at a boundary between the central part and the peripheral edge part.
    Type: Application
    Filed: May 16, 2014
    Publication date: December 4, 2014
    Applicant: Renesas Electronics Corporation
    Inventors: Akito Shimizu, Shirou Okada
  • Publication number: 20140001620
    Abstract: A method according to the invention has a bonding process of mounting a semiconductor chip on an upper surface of a die pad that has the upper surface whose area is larger than a reverse side of the semiconductor chip. It also has a sealed body formation process of sealing the semiconductor chip so that an undersurface opposite to the upper surface of the die pad may be exposed after the bonding process. Here, the upper surface of the die pad is arranged around an area over which the semiconductor chip is mounted, and has a hollow part arrangement area in which a groove or multiple holes are formed. Moreover, surface roughness of the upper surface is made coarser than surface roughness of the undersurface.
    Type: Application
    Filed: May 20, 2013
    Publication date: January 2, 2014
    Applicant: Renesas Electronics Corporation
    Inventors: Akito Shimizu, Kenji Nishikawa, Sadayuki Moroi, Tomoo Imura