Patents by Inventor Chia-Wen Shiue

Chia-Wen Shiue 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).

  • Apparatus for identification of locations of a circuit within an integrated circuit having low speed performance
    Patent number: 7208934
    Abstract: A test circuit for identification of locations with low speed performance. A grid of ring oscillator units and switches connect or disconnect the ring oscillator units to or from each other, such that the locations with low speed performance are identified according to frequencies of oscillation signals generated by rows and columns of ring oscillators respectively formed by operating the test circuit in two different modes.
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: April 24, 2007
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Ming-Chu King, Chia-Wen Shiue
  • Apparatus for identification of locations of a circuit within an integrated circuit having low speed performance
    Publication number: 20050157593
    Abstract: A test circuit for identification of locations with low speed performance. A grid of ring oscillator units and switches connect or disconnect the ring oscillator units to or from each other, such that the locations with low speed performance are identified according to frequencies of oscillation signals generated by rows and columns of ring oscillators respectively formed by operating the test circuit in two different modes.
    Type: Application
    Filed: January 21, 2004
    Publication date: July 21, 2005
    Inventors: Ming-Chu King, Chia-Wen Shiue