Patents by Inventor Tao-Ping Wang

Tao-Ping Wang 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: 7212939
    Abstract: A method and system is presented for measuring a data access time of an embedded macro module in an integrated circuit. A single external test signal is inputted into the embedded macro module for enabling a data input therein and extracting a data output therefrom. A pulse width of the single external test signal is incrementally increased until a latch of the data output is observed. Then, the data access time is obtained, as its substantially equals a time interval of the increased pulse width.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: May 1, 2007
    Assignee: Taiwan Semiconductor Manufacturin Co., Ltd.
    Inventors: Chen-Hui Hsieh, Hau-Tai Shieh, Tao-Ping Wang
  • Publication number: 20060190215
    Abstract: A method and system is presented for measuring a data access time of an embedded macro module in an integrated circuit. A single external test signal is inputted into the embedded macro module for enabling a data input therein and extracting a data output therefrom. A pulse width of the single external test signal is incrementally increased until a latch of the data output is observed. Then, the data access time is obtained, as its substantially equals a time interval of the increased pulse width.
    Type: Application
    Filed: February 18, 2005
    Publication date: August 24, 2006
    Inventors: Chen-Hui Hsieh, Hau-Tai Shieh, Tao-Ping Wang
  • Patent number: 7049853
    Abstract: A device to control a sense amplifier comprise a resetable control circuit containing a first input, a second input, a third input, and an output; the first input coupled to the output or to a ground; the second input coupled to receive a start signal; the third input coupled to receive output signals of the sense amplifier; the output coupled to the sense amplifier.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: May 23, 2006
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventor: Tao-Ping Wang
  • Patent number: 6930934
    Abstract: A yield enhancement circuit substitutes a redundant sub-circuit for a faulty sub-circuit in an integrated circuit such as memory. The yield enhancement circuit has a plurality of fault indication devices, which is associated with one sub circuit of the integrated circuits such that one fault indication device is activated to generate a fault signal to express the existence of a fault within the faulty sub-circuit. Additionally selected adjacent fault indication devices generate the fault signal to express the existence of the fault within the faulty circuit. A fault detection device determines the existence of the faulty sub-circuit and transmits a redundancy implementation signal to a plurality of redundancy activation circuits. Each redundancy activation circuit selectively transfers input/output signals to a designated path dependent on the expression of the existence of a fault within the integrated circuit.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: August 16, 2005
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventor: Tao-Ping Wang
  • Publication number: 20050088887
    Abstract: A yield enhancement circuit substitutes a redundant sub-circuit for a faulty sub-circuit in an integrated circuit such as memory. The yield enhancement circuit has a plurality of fault indication devices, which is associated with one sub circuit of the integrated circuits such that one fault indication device is activated to generate a fault signal to express the existence of a fault within the faulty sub-circuit. Additionally selected adjacent fault indication devices generate the fault signal to express the existence of the fault within the faulty circuit. A fault detection device determines the existence of the faulty sub-circuit and transmits a redundancy implementation signal to a plurality of redundancy activation circuits. Each redundancy activation circuit selectively transfers input/output signals to a designated path dependent on the expression of the existence of a fault within the integrated circuit.
    Type: Application
    Filed: October 28, 2003
    Publication date: April 28, 2005
    Inventor: Tao-Ping Wang
  • Publication number: 20050083088
    Abstract: A device to control a sense amplifier comprise a resetable control circuit containing a first input, a second input, a third input, and an output; the first input coupled to the output or to a ground; the second input coupled to receive a start signal; the third input coupled to receive output signals of the sense amplifier; the output coupled to the sense amplifier.
    Type: Application
    Filed: October 20, 2003
    Publication date: April 21, 2005
    Inventor: Tao-Ping Wang
  • Patent number: 6700822
    Abstract: A reset circuit in a memory device applies a reset to the global X-address latch and the local X-address latch. This resets those latches and effectively de-addresses all word lines prior to application of the next address. This eliminates any overlap of main word line signals between successive addresses thereby eliminating a possible glitch that would cause simultaneous word line addressing and potentially a memory read or write error. By terminating the addressing, the address cycle time may be reduced.
    Type: Grant
    Filed: May 15, 2002
    Date of Patent: March 2, 2004
    Assignee: Taiwan Semiconductor Manufacturing Company
    Inventor: Tao-Ping Wang