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: 7777304
    Abstract: A seal ring is continuously formed along a boundary between a semiconductor element region and a scribe grid region, auxiliary parts are intermittently arranged along the seal ring, and the seal ring is constituted by a metal layer.
    Type: Grant
    Filed: August 3, 2006
    Date of Patent: August 17, 2010
    Assignee: Panasonic Corporation
    Inventors: Tsuyoshi Hamatani, Yukitoshi Ota
  • Patent number: 7622792
    Abstract: A conductive region electrically connected to a buffer coat film is formed on at least one corner of a semiconductor substrate, so that electricity charged on a package seal resin or a surface of the buffer coat film is allowed to flow toward the conductive region through a conductive path. Thus, density of the electricity charged on the package seal resin or the surface of the buffer coat film is lowered, and electric discharge can be suppressed. Since the electric discharge is suppressed, no high voltage is applied to an external input/output terminal. As a result, it is possible to prevent a circuit metal wire connected to an integrated circuit from being fused and an interlayer insulating film from being damaged.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: November 24, 2009
    Assignee: Panasonic Corporation
    Inventors: Kazumi Watase, Tsuyoshi Hamatani
  • Publication number: 20090184428
    Abstract: A semiconductor substrate, an interwiring insulating film formed on the semiconductor substrate, a first protective film formed on the interwiring insulating film having an opening and a pad metal formed on the opening are provided. A groove is formed in a portion corresponding to a peripheral portion of the pad metal, and the groove is covered with the pad metal. Thus, without decreasing bonding properties, insulation between pads can be maintained as well as cracks in a protective film around pads can be prevented.
    Type: Application
    Filed: January 7, 2009
    Publication date: July 23, 2009
    Applicant: PANASONIC CORPORATION
    Inventor: Tsuyoshi HAMATANI
  • Patent number: 7391114
    Abstract: A pad section serving as an electrode for external connection of a semiconductor device includes a first pad metal (61) formed in the top layer, a second pad metal (62) formed under the first pad metal (61) via an interlayer insulating film (71), and vias (63) which penetrate the interlayer insulating film (71) and electrically connect the first pad metal (61) and the second pad metal (62). The first pad metal (61) and the second pad metal (62) have edges displaced from each other so as not to be aligned with each other along the thickness direction of each layer. Thus, it is possible to reduce stress occurring on an edge of the second pad metal (62), thereby reducing damage on the interlayer insulating film (71) and so on.
    Type: Grant
    Filed: February 1, 2005
    Date of Patent: June 24, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tadaaki Mimura, Tsuyoshi Hamatani, Atuhito Mizutani, Kenji Ueda
  • Patent number: 7309624
    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: July 12, 2006
    Date of Patent: December 18, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroaki Fujimoto, Tsuyoshi Hamatani, Toru Nomura
  • Publication number: 20070138638
    Abstract: In a semiconductor device having a multilayer interconnection structure, wires are formed by a damascene process, at least part of electrode pads includes a first conductive layer having a region provided for an electrical connection with an external unit. Herein, the first conductive layer is formed on a passivation film that is formed a semiconductor substrate and is indispensable for the multilayer interconnection structure.
    Type: Application
    Filed: November 9, 2006
    Publication date: June 21, 2007
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yukitoshi Ota, Noriyuki Nagai, Tsuyoshi Hamatani
  • Publication number: 20070132096
    Abstract: A conductive region electrically connected to a buffer coat film is formed on at least one corner of a semiconductor substrate, so that electricity charged on a package seal resin or a surface of the buffer coat film is allowed to flow toward the conductive region through a conductive path. Thus, density of the electricity charged on the package seal resin or the surface of the buffer coat film is lowered, and electric discharge can be suppressed. Since the electric discharge is suppressed, no high voltage is applied to an external input/output terminal. As a result, it is possible to prevent a circuit metal wire connected to an integrated circuit from being fused and an interlayer insulating film from being damaged.
    Type: Application
    Filed: December 8, 2006
    Publication date: June 14, 2007
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazumi Watase, Tsuyoshi Hamatani
  • Patent number: 7202565
    Abstract: A semiconductor device includes: multiple kinds of interlayer insulating films formed on a semiconductor substrate and having different elastic moduli, respectively; a metal pad arranged on said multiple kinds of interlayer insulating films; the interlayer insulating film of a low elastic modulus having the lowest elastic modulus and having an opening located under the metal pad, the interlayer insulating film of a not-low elastic modulus having the elastic modulus larger than the elastic modulus of the interlayer insulating film of the low elastic modulus, being layered in contact with the interlayer insulating film of the low elastic modulus, and continuously extending over the opening and a region surrounding the opening and a metal interconnection layer arranged under the metal pad, filling the opening in the interlayer insulating film of the low elastic modulus, and being in contact with the interlayer insulating film of the not-low elastic modulus.
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: April 10, 2007
    Assignees: Renesas Technology Corp., Matsushita Electric Industrial Co., Ltd.
    Inventors: Masazumi Matsuura, Hiroshi Horibe, Susumu Matsumoto, Tsuyoshi Hamatani
  • Publication number: 20070029641
    Abstract: A seal ring is continuously formed along a boundary between a semiconductor element region and a scribe grid region, auxiliary parts are intermittently arranged along the seal ring, and the seal ring is constituted by a metal layer.
    Type: Application
    Filed: August 3, 2006
    Publication date: February 8, 2007
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tsuyoshi Hamatani, Yukitoshi Ota
  • Publication number: 20070023927
    Abstract: When an interlayer film (22) is formed to have a large thickness and an electrode pad (11) is partly or wholly led out from an active region (16), an I/O region (15) can be reduced in area. Thus, it is possible to reduce an area of a semiconductor device.
    Type: Application
    Filed: July 17, 2006
    Publication date: February 1, 2007
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Noriyuki Nagai, Tsuyoshi Hamatani, Tadaaki Mimura
  • Publication number: 20060252183
    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: July 12, 2006
    Publication date: November 9, 2006
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Hiroaki Fujimoto, Tsuyoshi Hamatani, Toru Nomura
  • Patent number: 7125751
    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: January 26, 2005
    Date of Patent: October 24, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroaki Fujimoto, Tsuyoshi Hamatani, Toru Nomura
  • Publication number: 20050173801
    Abstract: A pad section serving as an electrode for external connection of a semiconductor device includes a first pad metal (61) formed in the top layer, a second pad metal (62) formed under the first pad metal (61) via an interlayer insulating film (71), and vias (63) which penetrate the interlayer insulating film (71) and electrically connect the first pad metal (61) and the second pad metal (62). The first pad metal (61) and the second pad metal (62) have edges displaced from each other so as not to be aligned with each other along the thickness direction of each layer. Thus, it is possible to reduce stress occurring on an edge of the second pad metal (62), thereby reducing damage on the interlayer insulating film (71) and so on.
    Type: Application
    Filed: February 1, 2005
    Publication date: August 11, 2005
    Applicant: Matsushita Elec. Ind. Co. Ltd.
    Inventors: Tadaaki Mimura, Tsuyoshi Hamatani, Atuhito Mizutani, Kenji Ueda
  • Publication number: 20050133892
    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: January 26, 2005
    Publication date: June 23, 2005
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroaki Fujimoto, Tsuyoshi Hamatani, Toru Nomura
  • Publication number: 20050054188
    Abstract: A semiconductor device includes: multiple kinds of interlayer insulating films formed on a semiconductor substrate and having different elastic moduli, respectively; a metal pad arranged on said multiple kinds of interlayer insulating films; the interlayer insulating film of a low elastic modulus having the lowest elastic modulus and having an opening located under the metal pad, the interlayer insulating film of a not-low elastic modulus having the elastic modulus larger than the elastic modulus of the interlayer insulating film of the low elastic modulus, being layered in contact with the interlayer insulating film of the low elastic modulus, and continuously extending over the opening and a region surrounding the opening and a metal interconnection layer arranged under the metal pad, filling the opening in the interlayer insulating film of the low elastic modulus, and being in contact with the interlayer insulating film of the not-low elastic modulus.
    Type: Application
    Filed: September 3, 2004
    Publication date: March 10, 2005
    Inventors: Masazumi Matsuura, Hiroshi Horibe, Susumu Matsumoto, Tsuyoshi Hamatani
  • Patent number: 6856026
    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: Grant
    Filed: July 11, 2003
    Date of Patent: February 15, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yuichiro Yamada, Tsuyoshi Hamatani
  • Patent number: 6835600
    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: May 16, 2003
    Date of Patent: December 28, 2004
    Assignee: Matsushita Electric Industrial Co., LTD
    Inventors: Masaki Utsumi, Masashi Funakoshi, Tsuyoshi Hamatani, Takeshi Morikawa, Yukio Nakabayashi
  • Patent number: 6693358
    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: Grant
    Filed: October 10, 2001
    Date of Patent: February 17, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yuichiro Yamada, Tsuyoshi Hamatani
  • Publication number: 20040017012
    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: July 11, 2003
    Publication date: January 29, 2004
    Inventors: Yuichiro Yamada, Tsuyoshi Hamatani
  • Publication number: 20030203541
    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: May 16, 2003
    Publication date: October 30, 2003
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masaki Utsumi, Masashi Funakoshi, Tsuyoshi Hamatani, Takeshi Morikawa, Yukio Nakabayashi