Patents by Inventor Hai Van Phuong

Hai Van Phuong 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: 5245584
    Abstract: A method for compensating for bit line delays in semiconductor memories including the steps of developing a dummy word line signal representative of the delay of a word line of a semiconductor memory and controlling the sense amplifier of the semiconductor memory with a control signal derived, at least in part, from the dummy word line signal. Preferably, the dummy word line signal is delayed by a fixed delay or by delay produced by a proportionally loaded dummy bit line. A circuit embodying the method of the present invention includes a dummy word which produces a dummy word signal upon the activation of any word of the semiconductor memory and a delay coupling the dummy word signal to the clock input of the sense amplifier. The delay may be a fixed delay including a number of logic elements, or it may be developed by a proportionally loaded bit line which has a fraction of the load of an actual bit line of the semiconductor memory.
    Type: Grant
    Filed: December 20, 1990
    Date of Patent: September 14, 1993
    Assignee: VLSI Technology, Inc.
    Inventors: Michael A. Zampaglione, Hai Van Phuong