Patents by Inventor Shaw Hung Ku

Shaw Hung Ku 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: 7439085
    Abstract: Methods and apparatuses for causing electroluminescence with charge trapping structures are disclosed. Various embodiments relate to methods and apparatuses for causing electroluminescence with charge carriers of one type provided to the charge trapping structure by a forward biased p-n structure or a reverse biased p-n structure.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: October 21, 2008
    Assignee: Macronix International Co., Ltd.
    Inventors: Chih Chieh Yeh, Shaw Hung Ku, Tahui Wang, Chih Yuan Lu
  • Patent number: 7301818
    Abstract: Hole annealing methods are described after erasure of nitride storage memory cells for compensating trapped holes to minimize the holes from detrapping in order to reduce the amount of threshold voltage from drifting significantly higher. A soft hot electron program is used to selected nitride storage memory cells that have been detected to have a threshold voltage that is higher than a presetting threshold voltage (EV) minus a wordline delta X. The effect of the soft electron program neutralizes the excess holes introduced by erasure of nitride storage memory cells that decreases the amount of threshold voltage from drifting higher. In one embodiment, a hole annealing method describes a soft hot electron programming to nitride storage memory cells in a block of nitride memory array that have been determined to have a threshold voltage higher than the presetting threshold voltage minus the wordline delta X.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: November 27, 2007
    Assignee: Macronix International Co., Ltd.
    Inventors: Wenpin Lu, Shaw Hung Ku