Patents by Inventor Kazuhiko Fukuta

Kazuhiko Fukuta 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: 7768136
    Abstract: A semiconductor device such as a COF or the like is provided on a semiconductor chip on a film-like shaped flexile wiring substrate on which a wiring pattern is formed. Between the semiconductor chip and the flexile wiring substrate, a sealing resin is filled for protecting the semiconductor chip. In the semiconductor device, a resin trace is 0.1 to 1.0 mm in width and 10 ?m in thickness, the resin trace being formed when applying the sealing resin along a longitudinal side of the semiconductor chip.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: August 3, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuhiko Fukuta, Kenji Toyosawa
  • Patent number: 7474008
    Abstract: A high reliability semiconductor device is provided which can prevent electromigration due to the deposition of metal ions originating from wires. The device includes: a flexible wiring board 11 including a base film 1 and multiple wires 9; a semiconductor chip 5 mounted to the flexible wiring board 11; and a sealing resin 6 disposed between the flexible wiring board 11 and the semiconductor chip 5 so as to at least partially in contact with the wires 9. The sealing resin 6 contains a metal ion binder mixed thereto.
    Type: Grant
    Filed: May 20, 2005
    Date of Patent: January 6, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuhiko Fukuta, Kenji Toyosawa, Takashi Kidoguchi
  • Patent number: 7290580
    Abstract: The reinforcement combining apparatus includes: a stage having a pressing surface; and a tool having a pressing surface opposite to the pressing surface of the stage, wherein the stage and the tool sandwich and press a flexible wiring substrate and a reinforcement, thereby combining the reinforcement with the flexible wiring substrate. A heat conduction rubber having elasticity which allows the heat conduction rubber to transform at an arbitrary area is provided as a part of the pressing surface of the tool, and the tool exerts pressure to the flexible wiring substrate via the heat conduction rubber. Thus, it is possible to bond the reinforcement to the flexible wiring with them uniformly appressed to each other.
    Type: Grant
    Filed: March 8, 2004
    Date of Patent: November 6, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Katsuyuki Naitoh, Kazuhiko Fukuta
  • Patent number: 7271860
    Abstract: A semiconductor device of the present invention includes a film-like flexible substrate having formed thereon a wiring pattern, external connection terminals formed at both end portions of the flexible substrate; and a semiconductor element mounted on a surface side of the flexible substrate, wherein a folded part, which is folded down in U-shape to a back surface side of the flexible substrate, is formed in a fixed state at least at one end portion of the flexible substrate. With this structure, the semiconductor device is COF mounted, and, for example, in its application to a liquid crystal module wherein the semiconductor device is provided so as to face a liquid crystal panel, the external connection terminals of the flexible substrate can be connected to an inner surface of a module main body for a liquid crystal panel in a state the semiconductor element of the semiconductor device faces the inside of the module main body.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: September 18, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuhiko Fukuta, Tomohiko Iwane, Masahiko Monzen
  • Publication number: 20060170085
    Abstract: A semiconductor device such as a COF or the like is provided on a semiconductor chip on a film-like shaped flexile wiring substrate on which a wiring pattern is formed. Between the semiconductor chip and the flexile wiring substrate, a sealing resin is filled for protecting the semiconductor chip. In the semiconductor device, a resin trace is 0.1 to 1.0 mm in width and 10 ?m in thickness, the resin trace being formed when applying the sealing resin along a longitudinal side of the semiconductor chip.
    Type: Application
    Filed: February 1, 2006
    Publication date: August 3, 2006
    Inventors: Kazuhiko Fukuta, Kenji Toyosawa
  • Publication number: 20050263909
    Abstract: A high reliability semiconductor device is provided which can prevent electromigration due to the deposition of metal ions originating from wires. The device includes: a flexible wiring board 11 including a base film 1 and multiple wires 9; a semiconductor chip 5 mounted to the flexible wiring board 11; and a sealing resin 6 disposed between the flexible wiring board 11 and the semiconductor chip 5 so as to at least partially in contact with the wires 9. The sealing resin 6 contains a metal ion binder mixed thereto.
    Type: Application
    Filed: May 20, 2005
    Publication date: December 1, 2005
    Inventors: Kazuhiko Fukuta, Kenji Toyosawa, Takashi Kidoguchi
  • Patent number: 6903794
    Abstract: A semiconductor device of the present invention includes a film-like flexible substrate having formed thereon a wiring pattern, external connection terminals formed at both end portions of the flexible substrate; and a semiconductor element mounted on a surface side of the flexible substrate, wherein a folded part, which is folded down in U-shape to a back surface side of the flexible substrate, is formed in a fixed state at least at one end portion of the flexible substrate. With this structure, the semiconductor device is COF mounted, and, for example, in its application to a liquid crystal module wherein the semiconductor device is provided so as to face a liquid crystal panel, the external connection terminals of the flexible substrate can be connected to an inner surface of a module main body for a liquid crystal panel in a state the semiconductor element of the semiconductor device faces the inside of the module main body.
    Type: Grant
    Filed: August 20, 2001
    Date of Patent: June 7, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuhiko Fukuta, Tomohiko Iwane, Masahiko Monzen
  • Publication number: 20050024553
    Abstract: A semiconductor device of the present invention includes a film-like flexible substrate having formed thereon a wiring pattern, external connection terminals formed at both end portions of the flexible substrate; and a semiconductor element mounted on a surface side of the flexible substrate, wherein a folded part, which is folded down in U-shape to a back surface side of the flexible substrate, is formed in a fixed state at least at one end portion of the flexible substrate. With this structure, the semiconductor device is COF mounted, and, for example, in its application to a liquid crystal module wherein the semiconductor device is provided so as to face a liquid crystal panel, the external connection terminals of the flexible substrate can be connected to an inner surface of a module main body for a liquid crystal panel in a state the semiconductor element of the semiconductor device faces the inside of the module main body.
    Type: Application
    Filed: August 31, 2004
    Publication date: February 3, 2005
    Applicant: Sharp Kabushik Kaisha
    Inventors: Kazuhiko Fukuta, Tomohiko Iwane, Masahiko Monzen
  • Publication number: 20040177774
    Abstract: The reinforcement combining apparatus includes: a stage having a pressing surface; and a tool having a pressing surface opposite to the pressing surface of the stage, wherein the stage and the tool sandwich and press a flexible wiring substrate and a reinforcement, thereby combining the reinforcement with the flexible wiring substrate. A heat conduction rubber having elasticity which allows the heat conduction rubber to transform at an arbitrary area is provided as a part of the pressing surface of the tool, and the tool exerts pressure to the flexible wiring substrate via the heat conduction rubber. Thus, it is possible to bond the reinforcement to the flexible wiring with them uniformly appressed to each other.
    Type: Application
    Filed: March 8, 2004
    Publication date: September 16, 2004
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Katsuyuki Naitoh, Kazuhiko Fukuta
  • Publication number: 20020047978
    Abstract: A semiconductor device of the present invention includes a film-like flexible substrate having formed thereon a wiring pattern, external connection terminals formed at both end portions of the flexible substrate; and a semiconductor element mounted on a surface side of the flexible substrate, wherein a folded part, which is folded down in U-shape to a back surface side of the flexible substrate, is formed in a fixed state at least at one end portion of the flexible substrate. With this structure, the semiconductor device is COF mounted, and, for example, in its application to a liquid crystal module wherein the semiconductor device is provided so as to face a liquid crystal panel, the external connection terminals of the flexible substrate can be connected to an inner surface of a module main body for a liquid crystal panel in a state the semiconductor element of the semiconductor device faces the inside of the module main body.
    Type: Application
    Filed: August 20, 2001
    Publication date: April 25, 2002
    Inventors: Kazuhiko Fukuta, Tomohiko Iwane, Masahiko Monzen
  • Patent number: 5153705
    Abstract: A TAB package for packaging a semiconductor chip includes a flexible base plate having a first surface and a second surface opposite to the first surface, an input and output leads being formed on the second surface of the flexible base plate and capable of being connected to the semiconductor chip, and a plurality of slits being formed on the first surface of the flexible base plate. Accordingly, the TAB package is allowed to be easily bent and kept in the bending state. The slits are formed in a manner to correspond to the intervals between the adjacent input and output leads so that the input and output leads can be reliably supported by the flexible base plate.
    Type: Grant
    Filed: March 6, 1991
    Date of Patent: October 6, 1992
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuhiko Fukuta, Naoyuki Tajima, Yasunori Chikawa, Takaski Tsuda, Takamichi Maeda