Patents by Inventor Daisuke Ohshima

Daisuke Ohshima 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: 9886666
    Abstract: Provided is an information processing device to preferentially present information which each user does not have detailed knowledge, among inference results inferred from context. The information processing device includes: an inference unit that obtains inference results by applying inference rules to context information; an inference result index value calculation unit that calculates, on the basis of a knowledge level of a reading user about each inference rule used in an inference process, index values that show depth of knowledge of the reading user about the inference results comprehensively; an inference result presentation unit that presents the inference results on the basis of the index values; and an knowledge level update unit that updates the knowledge level of the reading user about each inference rule used in the inference process on the basis of evaluation information acquired.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: February 6, 2018
    Assignee: NEC CORPORATION
    Inventors: Yousuke Motohashi, Hidekazu Sakagami, Shinichiro Kamei, Daisuke Ohshima
  • Publication number: 20140358827
    Abstract: Inference results for which each user does not have detailed knowledge are presented with priority. An information processing device 1 includes: an inference unit 104 that obtains inference results by applying inference rules to context information; an inference result index value calculation unit 105 that calculates, on the basis of a knowledge level of a reading user about each inference rule used in an inference process, index values that show depth of knowledge of the reading user about the inference results comprehensively; an inference result presentation unit 106 that presents the inference results on the basis of the index values; and an knowledge level update unit 109 that updates the knowledge level of the reading user about each inference rule used in the inference process on the basis of evaluation information acquired.
    Type: Application
    Filed: December 12, 2012
    Publication date: December 4, 2014
    Applicant: NEC CORPORATION
    Inventors: Yousuke Motohashi, Hidekazu Sakagami, Shinichiro Kamei, Daisuke Ohshima
  • Patent number: 8810008
    Abstract: A semiconductor element-embedded substrate includes a semiconductor element; a chip component; a peripheral insulating layer covering at least the outer circumferential side surfaces thereof; an upper surface-side wiring line provided on the upper surface side of the substrate; and a lower surface-side wiring line provided on the lower surface side of the substrate. The built-in semiconductor element includes a terminal on the upper surface side thereof, and this terminal is electrically connected to the upper surface-side wiring line. The built-in chip component includes an upper surface-side terminal electrically connected to the upper surface-side wiring line; a lower surface-side terminal electrically connected to the lower surface-side wiring line; and a through-chip via penetrating through the chip component to connect the upper surface-side terminal and the lower surface-side terminal.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: August 19, 2014
    Assignee: NEC Corporation
    Inventors: Kentaro Mori, Shintaro Yamamichi, Hideya Murai, Katsumi Kikuchi, Yoshiki Nakashima, Daisuke Ohshima
  • Patent number: 8766440
    Abstract: A wiring board including a built-in semiconductor element includes the semiconductor element, a peripheral insulating layer covering an outer peripheral side surface of the semiconductor element, an upper surface-side wiring provided on an upper surface side of the wiring board, and a lower surface-side wiring provided on a lower surface side of the wiring board. The semiconductor element includes a first wiring structure layer including a first wiring and a first insulating layer alternately provided on a semiconductor substrate, and a second wiring structure layer including a second wiring and a second insulating layer alternately provided on the first wiring structure layer. The upper surface-side wiring includes a wiring electrically connected to the first wiring via the second wiring. The second wiring is thicker than the first wiring and thinner than the upper surface-side wiring. The second insulating layer is formed of a resin material and is thicker than the first insulating layer.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: July 1, 2014
    Assignee: NEC Corporation
    Inventors: Katsumi Kikuchi, Shintaro Yamamichi, Hideya Murai, Kentaro Mori, Yoshiki Nakashima, Daisuke Ohshima
  • Patent number: 8710669
    Abstract: A semiconductor device includes a core substrate, and at least one insulating layer and at least one wiring layer that are disposed on a first surface and a second, opposite surface of the substrate. The semiconductor device includes a via disposed in the insulating layer and in the core substrate, and which connects the wiring layers to one another. The semiconductor device includes a semiconductor element mounted on the first surface, forming an electrode terminal that faces up. The semiconductor device includes a connecting portion that penetrates the insulating layer and directly connects the electrode terminal of the semiconductor element and the wiring layer on the first surface. A minimum wiring pitch of this wiring that of any wiring layer on the second surface.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: April 29, 2014
    Assignee: NEC Corporation
    Inventors: Kentaro Mori, Yoshiki Nakashima, Daisuke Ohshima, Katsumi Kikuchi, Shintaro Yamamichi
  • Patent number: 8692135
    Abstract: A wiring board is configured by stacking one or more conductor wiring layers and one or more insulating resin layers and comprising one or more metal vias configured to penetrate the insulating resin layer, wherein the boundary surface between the metal via and the insulating resin layer has a concavo-convex boundary cross-section structure in which the metal via and the insulating resin layer are engaged with each other.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: April 8, 2014
    Assignee: NEC Corporation
    Inventors: Takuo Funaya, Shintaro Yamamichi, Daisuke Ohshima, Yoshiki Nakashima
  • Publication number: 20140024177
    Abstract: A semiconductor device includes: at least one semiconductor element having electrode terminals; a metal plate supporting the semiconductor element; and a wiring board covering the semiconductor element and including a plurality of insulating layers and wiring layers alternately stacked and external connection terminals on a surface, the wiring layers being electrically connected to each other by vias. The electrode terminals and the external connection terminals are electrically connected via at least one of the wiring layers and the vias. At least one of the electrode terminals, the wiring layers, and the vias is electrically connected to the metal plate.
    Type: Application
    Filed: September 23, 2013
    Publication date: January 23, 2014
    Applicant: NEC CORPORATION
    Inventors: KENTARO MORI, DAISUKE OHSHIMA, SHINTARO YAMAMICHI, HIDEYA MURAI, KATSUMI MAEDA, KATSUMI KIKUCHI, YOSHIKI NAKASHIMA
  • Patent number: 8569892
    Abstract: A semiconductor device includes: at least one semiconductor element having electrode terminals; a metal plate supporting the semiconductor element; and a wiring board covering the semiconductor element and including a plurality of insulating layers and wiring layers alternately stacked and external connection terminals on a surface, the wiring layers being electrically connected to each other by vias. The electrode terminals and the external connection terminals are electrically connected via at least one of the wiring layers and the vias. At least one of the electrode terminals, the is wiring layers, and the vias is electrically connected to the metal plate.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: October 29, 2013
    Assignee: NEC Corporation
    Inventors: Kentaro Mori, Daisuke Ohshima, Shintaro Yamamichi, Hideya Murai, Katsumi Maeda, Katsumi Kikuchi, Yoshiki Nakashima
  • Patent number: 8450843
    Abstract: The semiconductor device comprises a semiconductor chip and a printed wiring board having a recess in which the semiconductor chip is housed face-down, wherein the printed wiring board comprises multiple wiring layers below a circuit surface of the semiconductor chip on which connection terminals are formed, and the multiple wiring layers include a first wiring layer for forming signal wires, a second wiring layer for forming a ground plane, and a third wiring layer for forming power wires and power BGA and ground BGA pads in sequence from the circuit surface.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: May 28, 2013
    Assignee: NEC Corporation
    Inventors: Hideki Sasaki, Daisuke Ohshima, Takuo Funaya
  • Publication number: 20130127037
    Abstract: An object of the present invention is to provide a semiconductor device built-in substrate, which can be made thin and can suppress occurrence of warpage. The present invention provides a semiconductor substrate which is featured by including a first semiconductor device serving as a substrate, a second semiconductor device placed on the circuit surface side of the first semiconductor device in the state where the circuit surfaces of the first and second semiconductor devices are placed to face in the same direction, and an insulating layer incorporating therein the second semiconductor device, and which is featured in that a heat dissipation layer is formed at least between the first semiconductor device and the second semiconductor device, and in that the heat dissipation layer is formed on the first semiconductor device so as to extend up to the outside of the second semiconductor device.
    Type: Application
    Filed: March 3, 2011
    Publication date: May 23, 2013
    Applicant: NEC CORPORATION
    Inventors: Kentaro Mori, Shintaro Yamamichi, Katsumi Kikuchi, Daisuke Ohshima, Yoshiki Nakashima, Hideya Murai
  • Publication number: 20130088841
    Abstract: The present invention has an object to provide a substrate with a built-in functional element, including the functional element above a metal plate, in which crosstalk noise between signal wirings can be reduced and higher characteristic impedance matching can be achieved. An aspect of the present invention provides a substrate with a built-in functional element, including: a metal plate that includes a concave portion and serves as a ground; the functional element that is placed in the concave portion and includes an electrode terminal; a first insulating layer that covers the functional element and is placed in contact with the metal plate; a first wiring layer including first signal wiring that is opposite the metal plate with the first insulating layer being interposed therebetween; a second insulating layer that covers the first wiring layer; and a ground layer formed of a ground plane that is opposite the first wiring layer with the second insulating layer being interposed therebetween.
    Type: Application
    Filed: January 19, 2011
    Publication date: April 11, 2013
    Applicant: NEC Corporation
    Inventors: Daisuke Ohshima, Kentaro Mori, Yoshiki Nakashima, Katsumi Kikuchi, Shintaro Yamamichi
  • Publication number: 20130050967
    Abstract: An object of the present invention is to provide a functional device-embedded substrate that can be thinned and suppress occurrence of warpage. The present invention provides a functional device-embedded substrate including at least a functional device including an electrode terminal, and a covering insulating layer covering at least an electrode terminal surface and a side surface of the functional device, the functional device-embedded substrate including a first pillar structure around the functional device inside the covering insulating layer, the first pillar structure including a material having a thermal expansion coefficient between thermal expansion coefficients of the functional device and the covering insulating layer, wherein the first pillar structure is arranged at a position where a shortest distance from a side surface of the functional device to a side surface of the first pillar structure is smaller than a thickness of the functional device.
    Type: Application
    Filed: January 19, 2011
    Publication date: February 28, 2013
    Applicant: NEC CORPORATION
    Inventors: Daisuke Ohshima, Katsumi Kikuchi, Yoshiki Nakashima, Kentaro Mori, Shintaro Yamamichi
  • Publication number: 20130009325
    Abstract: A semiconductor element-embedded substrate includes a semiconductor element; a chip component; a peripheral insulating layer covering at least the outer circumferential side surfaces thereof; an upper surface-side wiring line provided on the upper surface side of the substrate; and a lower surface-side wiring line provided on the lower surface side of the substrate. The built-in semiconductor element includes a terminal on the upper surface side thereof, and this terminal is electrically connected to the upper surface-side wiring line. The built-in chip component includes an upper surface-side terminal electrically connected to the upper surface-side wiring line; a lower surface-side terminal electrically connected to the lower surface-side wiring line; and a through-chip via penetrating through the chip component to connect the upper surface-side terminal and the lower surface-side terminal.
    Type: Application
    Filed: January 25, 2011
    Publication date: January 10, 2013
    Applicant: NEC CORPORATION
    Inventors: Kentaro Mori, Shintaro Yamamichi, Hideya Murai, Katsumi Kikuchi, Yoshiki Nakashima, Daisuke Ohshima
  • Publication number: 20120319254
    Abstract: A wiring board including a built-in semiconductor element includes the semiconductor element, a peripheral insulating layer covering an outer peripheral side surface of the semiconductor element, an upper surface-side wiring provided on an upper surface side of the wiring board, and a lower surface-side wiring provided on a lower surface side of the wiring board. The semiconductor element includes a first wiring structure layer including a first wiring and a first insulating layer alternately provided on a semiconductor substrate, and a second wiring structure layer including a second wiring and a second insulating layer alternately provided on the first wiring structure layer. The upper surface-side wiring includes a wiring electrically connected to the first wiring via the second wiring. The second wiring is thicker than the first wiring and thinner than the upper surface-side wiring. The second insulating layer is formed of a resin material and is thicker than the first insulating layer.
    Type: Application
    Filed: January 25, 2011
    Publication date: December 20, 2012
    Applicant: NEC CORPORATION
    Inventors: Katsumi Kikuchi, Shintaro Yamamichi, Hideya Murai, Kentaro Mori, Yoshiki Nakashima, Daisuke Ohshima
  • Publication number: 20120068359
    Abstract: A semiconductor device comprises: a core substrate; at least one insulating layer and at least one wiring layer which are disposed on each of a first surface of the core substrate and a second surface opposite to the first surface; a via(s) which is disposed in each of the insulating layer and the core substrate, and connects the wiring layers to each other; a semiconductor element, mounted on the first surface of the core substrate, with a surface for forming an electrode terminal(s) facing up; and a connecting portion(s) which penetrates the insulating layer disposed on the first surface and directly connects the electrode terminal of the semiconductor element and the wiring layer disposed on the first surface. A minimum wiring pitch of the wiring layer directly connected to the connecting portion is smaller than that of any of the wiring layer(s) disposed on the second surface.
    Type: Application
    Filed: May 18, 2010
    Publication date: March 22, 2012
    Inventors: Kentaro Mori, Yoshiki Nakashima, Daisuke Ohshima, Katsumi Kikuchi, Shintaro Yamamichi
  • Publication number: 20110175213
    Abstract: A semiconductor device includes: at least one semiconductor element having electrode terminals; a metal plate supporting the semiconductor element; and a wiring board covering the semiconductor element and including a plurality of insulating layers and wiring layers alternately stacked and external connection terminals on a surface, the wiring layers being electrically connected to each other by vias. The electrode terminals and the external connection terminals are electrically connected via at least one of the wiring layers and the vias. At least one of the electrode terminals, the is wiring layers, and the vias is electrically connected to the metal plate.
    Type: Application
    Filed: October 5, 2009
    Publication date: July 21, 2011
    Inventors: Kentaro Mori, Daisuke Ohshima, Shintaro Yamamichi, Hideya Murai, Katsumi Maeda, Katsumi Kikuchi, Yoshiki Nakashima
  • Publication number: 20110155433
    Abstract: A wiring board is configured by stacking one or more conductor wiring layers and one or more insulating resin layers and comprising one or more metal vias configured to penetrate the insulating resin layer, wherein the boundary surface between the metal via and the insulating resin layer has a concavo-convex boundary cross-section structure in which the metal via and the insulating resin layer are engaged with each other.
    Type: Application
    Filed: August 25, 2009
    Publication date: June 30, 2011
    Inventors: Takuo Funaya, Shintaro Yamamichi, Daisuke Ohshima, Yoshiki Nakashima
  • Publication number: 20100237492
    Abstract: The semiconductor device comprises a semiconductor chip and a printed wiring board having a recess in which the semiconductor chip is housed face-down, wherein the printed wiring board comprises multiple wiring layers below a circuit surface of the semiconductor chip on which connection terminals are formed, and the multiple wiring layers include a first wiring layer for forming signal wires, a second wiring layer for forming a ground plane, and a third wiring layer for forming power wires and power BGA and ground BGA pads in sequence from the circuit surface.
    Type: Application
    Filed: October 14, 2008
    Publication date: September 23, 2010
    Inventors: Hideki Sasaki, Daisuke Ohshima, Takuo Funaya
  • Patent number: 7434190
    Abstract: An analysis method of designing transmission lines of an integrated circuit packaging board including an integrated circuit chip, a printed circuit board, and an interposer disposed between the integrated circuit chip and the printed circuit board. A reference data file having information for dividing a series of transmission lines into connecting sections and/or continuous sections and a division model file having information on analysis models of a connecting section and a continuous section is prepared. The connecting sections are extracted from the series of transmission lines with reference to connection information. Boundaries for dividing the series of transmission lines into sections is determined with reference to the reference data file to generate division models. The division models are synthesized to form a synthesized model of the series of transmission lines to analyze electrical characteristics of the series of transmission lines.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: October 7, 2008
    Assignee: NEC Corporation
    Inventors: Hirobumi Inoue, Daisuke Ohshima, Jun Sakai, Mitsuru Furuya
  • Publication number: 20070033564
    Abstract: An analysis method of designing transmission lines of an integrated circuit packaging board including an integrated circuit chip, a printed circuit board, and an interposer disposed between the integrated circuit chip and the printed circuit board. A reference data file having information for dividing a series of transmission lines into connecting sections and/or continuous sections and a division model file having information on analysis models of a connecting section and a continuous section is prepared. The connecting sections are extracted from the series of transmission lines with reference to connection information. Boundaries for dividing the series of transmission lines into sections is determined with reference to the reference data file to generate division models. The division models are synthesized to form a synthesized model of the series of transmission lines to analyze electrical characteristics of the series of transmission lines.
    Type: Application
    Filed: June 23, 2006
    Publication date: February 8, 2007
    Inventors: Hirobumi Inoue, Daisuke Ohshima, Jun Sakai, Mitsuru Furuya