Patents by Inventor Haruo Shimamoto

Haruo Shimamoto 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: 5064706
    Abstract: A carrier tape includes a film having an opening for receiving a semiconductor chip to be resin-molded by a pair of mold halves and outer lead holes formed around the periphery of the opening, a plurality of leads for mounting the semiconductor chip on the film, and a resin running portion cooperating, when the mold halves are closed with the film held between the mold halves, with a gate formed on a parting surface of one of the mold halves to define a resin running path which extends from a portion of the film outside the outer lead holes to the opening for guiding a molten resin into the mold halves while preventing the resin from entering the outer lead holes.
    Type: Grant
    Filed: December 8, 1988
    Date of Patent: November 12, 1991
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tetsuya Ueda, Haruo Shimamoto, Hideya Yagoura, Hiroshi Seki, Yasuhiro Teraoka
  • Patent number: 4865193
    Abstract: A tape carrier utilized in the tape automated bonding of semiconductor chips is disclosed which comprises a polyimide tape-shaped film having apertures therein, and patterns of leads and reinforcing members formed on a surface of the film. The reinforcing members may be made of the same material as the leads, such as copper, and formed by a single photoetching process on the film. The reinforcing members are disposed on those areas of the film which lie outside of the leads and which are subjected to stress during the sealing of the semiconductor chips into a resinous mold subsequent to the inner lead bonding thereof. For example, the reinforcing members may be disposed in the lead supporting zones of the film, or around the corners of the outer-lead apertures. The reinforcing members reduces the stresses exerted on the leads during the molding of the chips, so that the deformations thereof during the same process are minimized.
    Type: Grant
    Filed: June 22, 1988
    Date of Patent: September 12, 1989
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Haruo Shimamoto, Tetsuya Ueda
  • Patent number: 4839713
    Abstract: A package structure comprising a metallic cap having a bottom wall to which the bottom surface of the semiconductor chip is electrically and mechanically connected, a side wall extending from said bottom wall and surrounding the semiconductor chip, and a flange extending outwardly from said side wall substantially parallel to said bottom wall, said flange supporting the lead conductors thereon through an electrically insulating material. The electrical connection means is disposed between the metallic cap flange and the lead conductor for establishing an electrical connection therebetween. The electrical connection means may comprise an electrically conductive projection formed on the flange of the metal cap, extending through a notch in the insulating material and electrically connected to the lead conductor.
    Type: Grant
    Filed: February 17, 1988
    Date of Patent: June 13, 1989
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yasuhiro Teraoka, Tetsuya Ueda, Hideya Yagoura, Haruo Shimamoto, Shigeyuki Nango, Toshinobu Banjo, Hiroshi Seki
  • Patent number: 4826068
    Abstract: A bonding device for effecting outer lead bonding is disclosed which comprises a bonding stage, a pair of bonding tools, and lead supporting means. The lead supporting means may take the form of a pair of projections formed on the upper surface of the bonding stage at horizontal locations thereof which are situated below the lead supporting portion of the tape carrier. Alternatively, the lead supporting means may take the form of a pair of horizontally extending rectangular columns which are retractably inserted into the above specified horizontal locations of the upper surface of the bonding stage. Thus, leads can be formed simultaneously with the outer lead bonding. The bonding stage may be divided into upper and lower stages, and the projections may be formed on the upper surface of the lower stage to extend through holes formed in the upper stage. This structure makes the projections retractable.
    Type: Grant
    Filed: June 22, 1988
    Date of Patent: May 2, 1989
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hideya Yagoura, Haruo Shimamoto