Patents by Inventor Ching D. Wang

Ching D. 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).

  • Method of making a floating gate memory cell
    Patent number: 6232185
    Abstract: A method for making a non-volatile memory cell having a select gate, a floating gate and a control gate of the completely self-aligned type, partially self-aligned type and non-aligned type is disclosed.
    Type: Grant
    Filed: May 15, 2000
    Date of Patent: May 15, 2001
    Assignee: Integrated Memory Technologies, Inc.
    Inventor: Ching D. Wang
  • Method of measuring time constant using a spectrum analyzer
    Patent number: 4427937
    Abstract: A method of measuring the time constant of an exponential waveform using a spectrum analyzer. From the different output Fourier components, one can calculate the time constant. This method is suitable for deep level transient spectroscopy for determining the emission rate and activation energy of traps in semiconductors.
    Type: Grant
    Filed: September 25, 1981
    Date of Patent: January 24, 1984
    Inventors: Hung C. Lin, Ching D. Wang