Patents by Inventor Hiroyuki Takeoka

Hiroyuki Takeoka 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).

  • Semiconductor device having a fuse layer
    Patent number: 5872389
    Abstract: Burst pressure P of an insulating layer positioned immediately on a fuse layer is defined by using planar width W of fuse layer and thickness t of insulating layer. The value of the planar width W of fuse layer and the value of the thickness t of insulating layer are set such that the value of burst pressure P is at most about 1000 kg/cm.sup.2. The value of the thickness t and the value of the planar width W are set such that the value t/W is at least 0.45 and at most 0.91. Consequently, stable fuse blowing becomes possible while reducing manufacturing cost.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: February 16, 1999
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yasumasa Nishimura, Keiko Ito, Hiroyuki Takeoka, Masanao Maruta, Masaharu Moriyasu