Patents by Inventor Taro Kajiyama

Taro Kajiyama 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 chip and method for detecting disconnection of wire bonded to semiconductor chip
    Patent number: 9726709
    Abstract: A semiconductor chip is provided with first and second electrode pads, a first current detector, and a third electrode pad. The first and second electrode pads are both to be wire-bonded to a first lead terminal. The first current detector is connected between the first and second electrode pads. The third electrode pad is wire-bonded to a second lead terminal. A first closed circuit is configured by the first lead terminal, the first electrode pad, the first current detector, and the second electrode pad. An induced current flows through the first closed circuit when a current generating an induced electromotive force is applied to the third electrode pad. The first current detector is configured to output different values depending on whether the induced current exceeds a threshold value or not.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: August 8, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Taro Kajiyama, Kazushi Yamanaka
  • SEMICONDUCTOR CHIP AND METHOD FOR DETECTING DISCONNECTION OF WIRE BONDED TO SEMICONDUCTOR CHIP
    Publication number: 20160231373
    Abstract: A semiconductor chip is provided with first and second electrode pads, a first current detector, and a third electrode pad. The first and second electrode pads are both to be wire-bonded to a first lead terminal. The first current detector is connected between the first and second electrode pads. The third electrode pad is wire-bonded to a second lead terminal. A first closed circuit is configured by the first lead terminal, the first electrode pad, the first current detector, and the second electrode pad. An induced current flows through the first closed circuit when a current generating an induced electromotive force is applied to the third electrode pad. The first current detector is configured to output different values depending on whether the induced current exceeds a threshold value or not.
    Type: Application
    Filed: February 5, 2016
    Publication date: August 11, 2016
    Inventors: Taro Kajiyama, Kazushi Yamanaka