Patents by Inventor Tetsuya Yokoi

Tetsuya Yokoi 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: 20160005681
    Abstract: A semiconductor package includes a frame formed of a metal and including multiple grooves formed in a surface, and, a semiconductor chip connected with the surface of the frame. A semiconductor device includes the semiconductor chip, and a base frame formed of copper and bonded to the bottom face of the semiconductor chip. In addition, the semiconductor chip and the base frame are bonded together by surface activation.
    Type: Application
    Filed: June 19, 2015
    Publication date: January 7, 2016
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Atsushi KUROSU, Tetsuya YOKOI
  • Patent number: 7061097
    Abstract: There is here disclosed a semiconductor device comprising a semiconductor element, a first substrate disposed to face one side of the element, being provided first internal wirings on a main surface, and being provided first external wirings connected to the respective first internal wirings on another main surface, and a second substrate formed to be larger than the element by a material having flexibility, being disposed to face another side of the element, being provided second internal wirings having one-end portions extended to edges of a main surface, and the one-end portions connected to the first internal wirings with being bent toward the first substrate together with the edges, being mounted the element having an electrode connected to some of the second internal wirings on the main surface, and being provided external terminals connected to some of the second internal wirings on a middle of another main surface.
    Type: Grant
    Filed: March 17, 2004
    Date of Patent: June 13, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Tetsuya Yokoi
  • Publication number: 20050151235
    Abstract: There is here disclosed a semiconductor device comprising a semiconductor element, a first substrate disposed to face one side of the element, being provided first internal wirings on a main surface, and being provided first external wirings connected to the respective first internal wirings on another main surface, and a second substrate formed to be larger than the element by a material having flexibility, being disposed to face another side of the element, being provided second internal wirings having one-end portions extended to edges of a main surface, and the one-end portions connected to the first internal wirings with being bent toward the first substrate together with the edges, being mounted the element having an electrode connected to some of the second internal wirings on the main surface, and being provided external terminals connected to some of the second internal wirings on a middle of another main surface.
    Type: Application
    Filed: March 17, 2004
    Publication date: July 14, 2005
    Inventor: Tetsuya Yokoi
  • Patent number: 6911725
    Abstract: Disclosed is a film substrate comprising an insulative sheet including a first region to be separated, having a slit on an outer peripheral line of the first region, and on which a semiconductor device chip is to be mounted, and a conductive pattern formed on the insulative sheet, crossing the slit, and to be connected to an external terminal of the semiconductor device chip.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: June 28, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Tetsuya Yokoi
  • Publication number: 20050029635
    Abstract: Disclosed is a film substrate comprising an insulative sheet including a first region to be separated, having a slit on an outer peripheral line of the first region, and on which a semiconductor device chip is to be mounted, and a conductive pattern formed on the insulative sheet, crossing the slit, and to be connected to an external terminal of the semiconductor device chip.
    Type: Application
    Filed: September 16, 2004
    Publication date: February 10, 2005
    Inventor: Tetsuya Yokoi
  • Publication number: 20030057543
    Abstract: Disclosed is a film substrate comprising an insulative sheet including a first region to be separated, having a slit on an outer peripheral line of the first region, and on which a semiconductor device chip is to be mounted, and a conductive pattern formed on the insulative sheet, crossing the slit, and to be connected to an external terminal of the semiconductor device chip.
    Type: Application
    Filed: September 26, 2002
    Publication date: March 27, 2003
    Applicant: Kabushiki Kaisha Toshiba
    Inventor: Tetsuya Yokoi
  • Patent number: 6495922
    Abstract: Bumps each having a pointed tip end or grooves are formed on electrodes of a chip, and they pierce wiring layers of an insulating film substrate such as an interposer so as to tear an oxide film or a contaminated layer produced on the surface of each of wiring layers. A new interface of the material is enabled to be continuously produced between the bumps and the wiring layers, thus making it possible to obtain an excellent electrical connection among them.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: December 17, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tetsuya Yokoi, Morihiko Ikemizu
  • Publication number: 20020011677
    Abstract: gBumps each having a pointed tip end or grooves are formed on electrodes of a chip, and they pierce wiring layers of an insulating film substrate such as an interposer so as to tear an oxide film or a contaminated layer produced on the surface of each of wiring layers. A new interface of the material is enabled to be continuously produced between the bumps and the wiring layers, thus making it possible to obtain an excellent electrical connection among them.
    Type: Application
    Filed: March 13, 2001
    Publication date: January 31, 2002
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tetsuya Yokoi, Morihiko Ikemizu