Patents by Inventor Masanobu Oohata

Masanobu Oohata 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: 4894706
    Abstract: A chip carrying member (1) such as a film carrier carrying a chip (10) and elastic spacers (2, 3) are stacked to form an elementary unit with adjusting its thickness. By using an aligning aperture (12) of a thin sheet (1), a plurality of the elementary units are stacked to form a laminated structure. From a side surface of the laminated structure, leads (13) are extended to be connected to a wiring board (241), or after the leads (13) are buried in an insulator (8), the leads (13) and insulator (8) are abraded to form a coplanar surface and then a wiring layer (82) for interconnecting is formed on the abraded surface. A usual chip can be mounted on the chip carrying member (1) without any work with a high accuracy in alignment of the lamination and furthermore with a high accuracy in a lamination pitch of the chip carrying member (1), so that the leads (13) of the chip (10) can be wired precisely and finely. A low cost and high density three-dimensional packaging structure can be realized.
    Type: Grant
    Filed: October 9, 1986
    Date of Patent: January 16, 1990
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Yoshiyuki Sato, Kazuhide Kiuchi, Junji Watanabe, Kunio Koyabu, Masanobu Oohata, Katsuhiko Aoki