Patents by Inventor Masahiko Nakabayashi

Masahiko Nakabayashi 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 and method of testing the same
    Patent number: 8169230
    Abstract: A semiconductor device is formed on a semiconductor wafer. The semiconductor device has: an output buffer configured to externally output an output signal received from an internal circuit; an input buffer configured to output an input signal externally received to the internal circuit; a switch configured to control electrical connection between an output terminal of the output buffer and an input terminal of the input buffer; a first transmission path provided in a scribe region of the semiconductor wafer and connecting between the output terminal and the switch; and a second transmission path provided in the scribe region and connecting between the input terminal and the switch.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: May 1, 2012
    Assignee: Renesas Electronics Corporation
    Inventor: Masahiko Nakabayashi
  • Semiconductor device and method of testing the same
    Publication number: 20100117678
    Abstract: A semiconductor device is formed on a semiconductor wafer. The semiconductor device has: an output buffer configured to externally output an output signal received from an internal circuit; an input buffer configured to output an input signal externally received to the internal circuit; a switch configured to control electrical connection between an output terminal of the output buffer and an input terminal of the input buffer; a first transmission path provided in a scribe region of the semiconductor wafer and connecting between the output terminal and the switch; and a second transmission path provided in the scribe region and connecting between the input terminal and the switch.
    Type: Application
    Filed: November 4, 2009
    Publication date: May 13, 2010
    Applicant: NEC ELECTRONICS CORPORATION
    Inventor: Masahiko Nakabayashi