Patents by Inventor Fumio MARUTANI

Fumio MARUTANI 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: 8624242
    Abstract: There is offered a semiconductor integrated circuit provided with a function to electrically identify a location where a defect such as chipping of an LSI die or separation of resin is caused. Corresponding to each of the four corners of a semiconductor substrate, each of L-shaped first through fourth peripheral wirings having a first end and a second end is disposed on a periphery of the semiconductor substrate. The first end of each of the first through fourth peripheral wirings is connected with a power supply wiring. Each of first through fourth detection circuits detects breaking of corresponding each of the first through fourth peripheral wirings in response to a voltage at the second end of corresponding each of the first through fourth peripheral wirings, and outputs corresponding each of first through fourth detection signals to corresponding each of output pads.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: January 7, 2014
    Assignee: Semiconductor Components Industries, LLC
    Inventors: Hiroshi Kojima, Fumio Marutani
  • Publication number: 20130146874
    Abstract: There is offered a semiconductor integrated circuit provided with a function to electrically identify a location where a defect such as chipping of an LSI die or separation of resin is caused. Corresponding to each of the four corners of a semiconductor substrate, each of L-shaped first through fourth peripheral wirings having a first end and a second end is disposed on a periphery of the semiconductor substrate. The first end of each of the first through fourth peripheral wirings is connected with a power supply wiring. Each of first through fourth detection circuits detects breaking of corresponding each of the first through fourth peripheral wirings in response to a voltage at the second end of corresponding each of the first through fourth peripheral wirings, and outputs corresponding each of first through fourth detection signals to corresponding each of output pads.
    Type: Application
    Filed: December 11, 2012
    Publication date: June 13, 2013
    Inventors: Hiroshi KOJIMA, Fumio MARUTANI