Patents by Inventor Shinji Ohuchi

Shinji Ohuchi 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: 8486728
    Abstract: A method of manufacturing a semiconductor device and a semiconductor device including a first semiconductor element mounted on a first surface of a base plate, wherein solder balls are formed on a second opposite surface of the base plate—such that the second opposite surface includes an area without solder balls. At least one second semiconductor element is mounted to the base plate at the area of the second surface without solder balls. The at least one semiconductor element may be mounted to the base plate using low molecular adhesive, or in the alternative, high temperature solder.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: July 16, 2013
    Assignee: Oki Semiconductor Co., Ltd.
    Inventors: Shinji Ohuchi, Shigeru Yamada, Yasushi Shiraishi
  • Publication number: 20110287585
    Abstract: A method of manufacturing a semiconductor device and a semiconductor device including a first semiconductor element mounted on a first surface of a base plate, wherein solder balls are formed on a second opposite surface of the base plate—such that the second opposite surface includes an area without solder balls. At least one second semiconductor element is mounted to the base plate at the area of the second surface without solder balls. The at least one semiconductor element may be mounted to the base plate using low molecular adhesive, or in the alternative, high temperature solder.
    Type: Application
    Filed: August 8, 2011
    Publication date: November 24, 2011
    Applicant: OKI SEMICONDUCTOR CO., LTD.
    Inventors: Shinji Ohuchi, Shigeru Yamada, Yasushi Shiraishi
  • Patent number: 8008129
    Abstract: A method of manufacturing a semiconductor device and a semiconductor device including a first semiconductor element mounted on a first surface of a base plate, wherein solder balls are formed on a second opposite surface of the base plate-such that the second opposite surface includes an area without solder balls. At least one second semiconductor element is mounted to the base plate at the area of the second surface without solder balls. The at least one semiconductor element may be mounted to the base plate using low molecular adhesive, or in the alternative, high temperature solder.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: August 30, 2011
    Assignee: Oki Semiconductor Co., Ltd.
    Inventors: Shinji Ohuchi, Shigeru Yamada, Yasushi Shiraishi
  • Patent number: 7977229
    Abstract: A semiconductor apparatus includes a semiconductor device to be mounted on a circuit board; a plurality of conductive posts electrically connected to the semiconductor device; and a plurality of conductive bumps each provided on an outer end of each of the conductive posts, so that the plurality of conductive bump is soldered onto the circuit board when the semiconductor device is mounted on the circuit board. A distance between a peripheral edge of the semiconductor device and an outer edge of the conductive post is determined to be narrow so that a solderbility or wetting condition of the conductive bumps can be visibly recognized easily.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: July 12, 2011
    Assignee: Oki Semiconductor Co., Ltd.
    Inventors: Shinji Ohuchi, Yasushi Shiraishi, Yasuo Tanaka
  • Patent number: 7928546
    Abstract: With the objective of enabling a reduction in the size of a final semiconductor device and its thinning, and attaining facilitation of a manufacturing process, the semiconductor device includes a circuit chip having a flat mounted surface, a circuit chip smaller in size than the former circuit chip, and a sheet-like support. The latter circuit chip is formed over a substrate and has a flat back surface fixed to the substrate and a flat surface positioned on the side opposite to the back surface. The support is bonded to the surface of the latter circuit chip and supports the latter circuit chip. Then, the back surface of the latter circuit chip supported by the support is peeled from the substrate and pressed against the mounted surface, thereby fixing the back surface of the latter circuit chip and the mounted surface by an intermolecular bonding force (e.g., hydrogen bonding).
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: April 19, 2011
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Morifumi Ohno, Motoki Kobayashi, Makoto Terui, Shinji Ohuchi, Mitsuhiko Ogihara
  • Publication number: 20100197079
    Abstract: A method of manufacturing a semiconductor device and a semiconductor device including a first semiconductor element mounted on a first surface of a base plate, wherein solder balls are formed on a second opposite surface of the base plate-such that the second opposite surface includes an area without solder balls. At least one second semiconductor element is mounted to the base plate at the area of the second surface without solder balls. The at least one semiconductor element may be mounted to the base plate using low molecular adhesive, or in the alternative, high temperature solder.
    Type: Application
    Filed: April 14, 2010
    Publication date: August 5, 2010
    Applicant: OKI SEMICONDUCTOR CO., LTD.
    Inventors: Shinji Ohuchi, Shigeru Yamada, Yasushi Shiraishi
  • Patent number: 7723832
    Abstract: A method of manufacturing a semiconductor device and a semiconductor device including a first semiconductor element mounted on a first surface of a base plate, wherein solder balls are formed on a second opposite surface of the base plate—such that the second opposite surface includes an area without solder balls. At least one second semiconductor element is mounted to the base plate at the area of the second surface without solder balls. The at least one semiconductor element may be mounted to the base plate using low molecular adhesive, or in the alternative, high temperature solder.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: May 25, 2010
    Assignee: Oki Semiconductor Co., Ltd.
    Inventors: Shinji Ohuchi, Shigeru Yamada, Yasushi Shiraishi
  • Patent number: 7704801
    Abstract: A resin sealed semiconductor device includes a semiconductor chip having a main surface, a plurality of surface electrodes formed on the main surface of the chip, a plurality of projection electrodes formed the main surface, each projection electrode being connected to respective one surface electrodes, and a resin shield covering the main surface, the surface electrodes and side surfaces of the projection electrodes, the resin having a thermal expansion coefficient in the range of 8-10 ppm/° C. and a Young's modulus in the range of 1.8-2.0 Gpa.
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: April 27, 2010
    Assignee: Oki Semiconductor Co., Ltd.
    Inventors: Shinji Ohuchi, Yasuo Tanaka
  • Publication number: 20100055834
    Abstract: An improved method of manufacturing a semiconductor device. The resulting semiconductor device operates properly even when a plurality of semiconductor chips is mounted. One or more semiconductor chips are mounted on the bottom surface of a mounting substrate, the semiconductor chips are fixed to a supporting substrate with adhesive, and then the semiconductor chips are sealed with resin. Subsequently, another semiconductor chips are mounted on the top surface of the mounting substrate.
    Type: Application
    Filed: August 31, 2009
    Publication date: March 4, 2010
    Applicant: OKI SEMICONDUCTOR CO., LTD.
    Inventor: Shinji OHUCHI
  • Publication number: 20100025710
    Abstract: There is provided a semiconductor device including: a semiconductor chip having a penetrating electrode penetrating through from a first main surface of the semiconductor chip to a second main surface on the opposite side thereof, a photoreceptor portion formed on the first main surface, and a first wire at a periphery of the photoreceptor portion; a light transmitting chip adhered to the first main surface at the periphery of the light transmitting chip, with a bonding layer interposed between the light transmitting chip and the first main surface, the light transmitting chip covering the light transmitting chip; and a light blocking resin layer formed only on the side surfaces of the light transmitting chip and the bonding layer.
    Type: Application
    Filed: July 30, 2009
    Publication date: February 4, 2010
    Applicant: OKI SEMICONDUCTOR CO., LTD.
    Inventors: Shigeru Yamada, Makoto Terui, Yoshimi Egawa, Shinji Ohuchi
  • Patent number: 7592690
    Abstract: A semiconductor device including a first semiconductor element mounted on a first surface of a base plate, wherein solder balls are formed on a second opposite surface of the base plate such that the second opposite surface includes an area without solder balls. At least one second semiconductor element is mounted to the base plate at the area of the second surface without solder balls. The at least one semiconductor element may be mounted to the base plate using solder joints.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: September 22, 2009
    Assignee: Oki Semiconductor Co., Ltd.
    Inventors: Shinji Ohuchi, Shigeru Yamada, Yasushi Shiraishi
  • Patent number: 7427810
    Abstract: A semiconductor device including a first semiconductor element mounted on a first surface of second semiconductor element, wherein solder balls are formed on the first surface of the second semiconductor element such that the first surface includes an area without solder balls. At least one first semiconductor element is mounted to the second semiconductor element at the area of the first surface without solder balls. The at least one first semiconductor element may be mounted to the second semiconductor element using solder joints.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: September 23, 2008
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Shinji Ohuchi, Shigeru Yamada, Yasushi Shiraishi
  • Patent number: 7405138
    Abstract: A semiconductor device capable mounting semiconductor elements having different functions without increasing the area of the semiconductor device, and its manufacturing method are presented. A part if wiring 104 is formed al so at the side surface of a semiconducter element 101, and bump electrodes 102 formed so as to be nearly on a same plane as the wiring 104 formed at the side surface of the semiconducter element 101, at least a part of ball electrodes 103 is formed so as to connect electrically to the wiring 104 at the side surface of the semiconductor element, the side surface of the semiconductor element is sealed with resin exposing the wiring 104, and the confronting surface of the circuit forming surface is sealed with resin.
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: July 29, 2008
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Shinji Ohuchi, Yasushi Shiraishi, Yasuo Tanaka
  • Publication number: 20080124843
    Abstract: A resin sealed semiconductor device includes a semiconductor chip having a main surface, a plurality of surface electrodes formed on the main surface of the chip, a plurality of projection electrodes formed the main surface, each projection electrode being connected to respective one surface electrodes, and a resin shield covering the main surface, the surface electrodes and side surfaces of the projection electrodes, the resin having a thermal expansion coefficient in the range of 8-10 ppm/° C. and a Young's modulus in the range of 1.8-2.0 Gpa.
    Type: Application
    Filed: January 16, 2008
    Publication date: May 29, 2008
    Inventors: Shinji Ohuchi, Yasuo Tanaka
  • Publication number: 20080070348
    Abstract: A semiconductor apparatus includes a semiconductor device to be mounted on a circuit board; a plurality of conductive posts electrically connected to the semiconductor device; and a plurality of conductive bumps each provided on an outer end of each of the conductive posts, so that the plurality of conductive bump is soldered onto the circuit board when the semiconductor device is mounted on the circuit board. A distance between a peripheral edge of the semiconductor device and an outer edge of the conductive post is determined to be narrow so that a solderbility or wetting condition of the conductive bumps can be visibly recognized easily.
    Type: Application
    Filed: October 29, 2007
    Publication date: March 20, 2008
    Applicant: OKI ELECTRIC INDUSTRY CO., LTD.
    Inventors: Shinji Ohuchi, Yasushi Shiraishi, Yasuo Tanaka
  • Publication number: 20080054426
    Abstract: With the objective of enabling a reduction in the size of a final semiconductor device and its thinning, and attaining facilitation of a manufacturing process, the semiconductor device includes a circuit chip having a flat mounted surface, a circuit chip smaller in size than the former circuit chip, and a sheet-like support. The latter circuit chip is formed over a substrate and has a flat back surface fixed to the substrate and a flat surface positioned on the side opposite to the back surface. The support is bonded to the surface of the latter circuit chip and supports the latter circuit chip. Then, the back surface of the latter circuit chip supported by the support is peeled from the substrate and pressed against the mounted surface, thereby fixing the back surface of the latter circuit chip and the mounted surface by an intermolecular bonding force (e.g., hydrogen bonding).
    Type: Application
    Filed: August 23, 2007
    Publication date: March 6, 2008
    Applicant: OKI ELECTRIC INDUSTRY CO., LTD.
    Inventors: Morifumi Ohno, Motoki Kobayashi, Makoto Terui, Shinji Ohuchi, Mitsuhiko Ogihara
  • Patent number: 7314779
    Abstract: A semiconductor device in accordance with the present invention reduces cracks occurring in a junction between a semiconductor device and a mounting substrate due to a heat stress when the semiconductor device is mounted on a printed circuit board or the like. The semiconductor device has a semiconductor element having a thickness of 200 ?m or less, an electrode pad formed an the semiconductor element, a post electrically connected to the electrode pad, and a sealing resin for sealing a surface where circuitry is formed and the post.
    Type: Grant
    Filed: November 24, 2003
    Date of Patent: January 1, 2008
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Shinji Ohuchi, Yasushi Shiraishi
  • Patent number: 7307337
    Abstract: A semiconductor apparatus includes a semiconductor device to be mounted on a circuit board; a plurality of conductive posts electrically connected to the semiconductor device; and a plurality of conductive bumps each provided on an outer end of each of the conductive posts, so that the plurality of conductive bump is soldered onto the circuit board when the semiconductor device is mounted on the circuit board. A distance between a peripheral edge of the semiconductor device and an outer edge of the conductive post is determined to be narrow so that a solderbility or wetting condition of the conductive bumps can be visibly recognized easily.
    Type: Grant
    Filed: May 2, 2005
    Date of Patent: December 11, 2007
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Shinji Ohuchi, Yasushi Shiraishi, Yasuo Tanaka
  • Patent number: 7019397
    Abstract: A semiconductor device capable mounting semiconductor elements having different functions without increasing the area of the semiconductor device, and its manufacturing method are presented. A part of wiring 104 is formed at the side surface of a semiconductor element 101, and bump electrodes 102 are formed so as to be nearly on a same plane as the wiring 104 formed at the side surface of the semiconductor element 101. At least a part of ball electrodes 103 is formed so as to connect electrically to the wiring 104 at the side surface of the semiconductor element, the side surface of the semiconductor element is sealed with resin exposing the wiring 104, and the confronting surface of the circuit forming surface is sealed with resin.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: March 28, 2006
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Shinji Ohuchi, Yasushi Shiraishi, Yasuo Tanaka
  • Publication number: 20060046436
    Abstract: A manufacturing method of a semiconductor device capable of mounting semiconductor elements having different functions without increasing the area of the semiconductor device, wherein a part of a wiring is formed at the side surface of a semiconductor element, and bump electrodes are formed so as to be nearly on a same plane as the wiring formed at the side surface of the semiconductor element. At least a part of ball electrodes are formed so as to connect electrically to the wiring at the side surface of the semiconductor element, the side surface of the semiconductor element is sealed with resin exposing the wiring, and the confronting surface of the circuit forming surface is sealed with resin.
    Type: Application
    Filed: September 27, 2005
    Publication date: March 2, 2006
    Inventors: Shinji Ohuchi, Yasushi Shiraishi, Yasuo Tanaka