Patents Assigned to Ball Semiconductor Corporation
  • Patent number: 6909182
    Abstract: A spherical semiconductor device includes a spherical semiconductor element having one or more electrodes on its surface. Spherical conductive bumps are formed at the positions of the electrodes. The electrodes are so arranged as to contact a common plane. Spherical bumps constituting a group to be connected to the outside protrude above the spherical semiconductor element such that a predetermined gap is formed between a plane or a spherical surface capable of contacting the spherical bumps and the surface of the spherical semiconductor element. The spherical semiconductor device is connected to various circuit boards or another semiconductor device through the spherical bumps. This affords easy and accurate electrical connections to the outside.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: June 21, 2005
    Assignees: Nippon Steel Corporation, Ball Semiconductor Corporation
    Inventors: Kohei Tatsumi, Kenji Shimokawa, Eiji Hashino, Nobuo Takeda, Atsuyuki Fukano
  • Publication number: 20040061224
    Abstract: A spherical semiconductor device includes a spherical semiconductor element having one or more electrodes on its surface. Spherical conductive bumps are formed at the positions of the electrodes. The electrodes are so arranged as to contact a common plane. Spherical bumps constituting a group to be connected to the outside protrude above the spherical semiconductor element such that a predetermined gap is formed between a plane or a spherical surface capable of contacting the spherical bumps and the surface of the spherical semiconductor element. The spherical semiconductor device is connected to various circuit boards or another semiconductor device through the spherical bumps. This affords easy and accurate electrical connections to the outside.
    Type: Application
    Filed: September 27, 2002
    Publication date: April 1, 2004
    Applicants: Nippon Steel Corporation, Ball Semiconductor Corporation
    Inventors: Kohei Tatsumi, Kenji Shimokawa, Eiji Hashino, Nobuo Takeda, Atsuyuki Fukano
  • Patent number: 6509645
    Abstract: A spherical semiconductor device includes a spherical semiconductor element having one or more electrodes on its surface. Spherical conductive bumps are formed at the positions of the electrodes. The electrodes are so arranged as to contact a common plane. Spherical bumps constituting a group to be connected to the outside protrude above the spherical semiconductor element such that a predetermined gap is formed between a plane or a spherical surface capable of contacting the spherical bumps and the surface of the spherical semiconductor element. The spherical semiconductor device is connected to various circuit boards or another semiconductor device through the spherical bumps. This affords easy and accurate electrical connections to the outside.
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: January 21, 2003
    Assignees: Nippon Steel Corporation, Ball Semiconductor Corporation
    Inventors: Kohei Tatsumi, Kenji Shimokawa, Eiji Hashino, Nobuo Takeda, Atsuyuki Fukano