Patents by Inventor Tsuyoshi Hamatani

Tsuyoshi Hamatani 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: 6603194
    Abstract: A lead frame includes: an outer frame section; a plurality of chip mounting sections which are supported by the outer frame section and on which a plurality of semiconductor chips are mounted; lead sections surrounding the chip mounting sections; connecting sections for connecting and supporting the lead sections and the outer frame section with each other; and an encapsulation region in which the chip mounting sections are encapsulated together in an encapsulation resin. An opening is provided in a plurality of regions of the outer frame section that are each located outside the encapsulation region and along the extension of one of the connecting sections.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: August 5, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masaki Utsumi, Masashi Funakoshi, Tsuyoshi Hamatani, Takeshi Morikawa, Yukio Nakabayashi
  • Publication number: 20030038359
    Abstract: Disclosed is a semiconductor device which comprises a semiconductor element having a plurality of electrodes, a plurality of external electrodes disposed around the periphery of the semiconductor element, a fine wire electrically connected between at least one of surfaces of each of the plural external electrodes and at least one of the plural electrodes of the semiconductor element, and an encapsulating resin which encapsulates the semiconductor element, the plural external electrodes, and the fine wires and whose external shape is a rectangular parallelepiped, wherein a bottom surface of the semiconductor element and a bottom surface of each of the plural external electrode are exposed from a bottom surface of the encapsulating resin and a top surface of the semiconductor element and a top surface of each of the plural external electrode are located substantially coplanar with each other.
    Type: Application
    Filed: September 30, 2002
    Publication date: February 27, 2003
    Inventors: Hiroaki Fujimoto, Tsuyoshi Hamatani, Toru Nomura
  • Patent number: 6498393
    Abstract: Disclosed is a semiconductor device which comprises a semiconductor element having a plurality of electrodes, a plurality of external electrodes disposed around the periphery of the semiconductor element, a fine wire electrically connected between at least one of surfaces of each of the plural external electrodes and at least one of the plural electrodes of the semiconductor element, and an encapsulating resin which encapsulates the semiconductor element, the plural external electrodes, and the fine wires and whose external shape is a rectangular parallelepiped, wherein a bottom surface of the semiconductor element and a bottom surface of each of the plural external electrode are exposed from a bottom surface of the encapsulating resin and a top surface of the semiconductor element and a top surface of each of the plural external electrode are located substantially coplanar with each other.
    Type: Grant
    Filed: December 26, 2000
    Date of Patent: December 24, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroaki Fujimoto, Tsuyoshi Hamatani, Toru Nomura
  • Publication number: 20020109973
    Abstract: A lead frame includes: an outer frame section; a plurality of chip mounting sections which are supported by the outer frame section and on which a plurality of semiconductor chips are mounted; lead sections surrounding the chip mounting sections; connecting sections for connecting and supporting the lead sections and the outer frame section with each other; and an encapsulation region in which the chip mounting sections are encapsulated together in an encapsulation resin. An opening is provided in a plurality of regions of the outer frame section that are each located outside the encapsulation region and along the extension of one of the connecting sections.
    Type: Application
    Filed: June 13, 2001
    Publication date: August 15, 2002
    Inventors: Masaki Utsumi, Masashi Funakoshi, Tsuyoshi Hamatani, Takeshi Morikawa, Yukio Nakabayashi
  • Publication number: 20020047210
    Abstract: A semiconductor chip which does not increase the thickness or the board area of a semiconductor device wherein semiconductor chips are layered and does not increase the wire length between the semiconductor chips even in the case that a plurality of semiconductor chips are layered on a wiring board and a process thereof, as well as a semiconductor device, and the like, are provided.
    Type: Application
    Filed: October 10, 2001
    Publication date: April 25, 2002
    Inventors: Yuichiro Yamada, Tsuyoshi Hamatani
  • Publication number: 20010040286
    Abstract: Disclosed is a semiconductor device which comprises a semiconductor element having a plurality of electrodes, a plurality of external electrodes disposed around the periphery of the semiconductor element, a fine wire electrically connected between at least one of surfaces of each of the plural external electrodes and at least one of the plural electrodes of the semiconductor element, and an encapsulating resin which encapsulates the semiconductor element, the plural external electrodes, and the fine wires and whose external shape is a rectangular parallelepiped, wherein a bottom surface of the semiconductor element and a bottom surface of each of the plural external electrode are exposed from a bottom surface of the encapsulating resin and a top surface of the semiconductor element and a top surface of each of the plural external electrode are located substantially coplanar with each other.
    Type: Application
    Filed: December 26, 2000
    Publication date: November 15, 2001
    Inventors: Hiroaki Fujimoto, Tsuyoshi Hamatani, Toru Nomura