Patents by Inventor Yu-Wei Lee

Yu-Wei Lee 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).

  • Publication number: 20030231539
    Abstract: A control clocks generator and method thereof for a high speed sense amplifier generates control clocks by utilizing RC delay and gate delay, in combination with reference sensing delay induced from a reference sense amplifier, and thereby, is tracking well for the high speed sense amplifier with process, temperature and voltage variations.
    Type: Application
    Filed: June 11, 2003
    Publication date: December 18, 2003
    Inventors: Yu-Wei Lee, Hsiao-Yang Hsu
  • Patent number: 6650148
    Abstract: A sense amplifier circuit for sensing data fed to its data input terminal and operating on the data according to a pre-charge signal, a latch signal and a sense amplifier enable signal. The sense amplifier circuit includes a pre-charge sense circuit that receives data from a data input terminal and outputs a first output value as well as a latching circuit that receives the first output value and outputs a second output value within a preset period. The pre-charge sense circuit further includes a first circuit and a second circuit. The first circuit is capable of pre-charging the data input terminal to a preset potential level. The second circuit produces a first output value according to the input data. In addition, the first circuit and the second circuit are connected in parallel between a voltage source and a data input terminal.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: November 18, 2003
    Assignee: Macronix International Co., Ltd.
    Inventors: Yu-Wei Lee, Sheau-Yung Shyu
  • Patent number: 6421296
    Abstract: A double protection virtual ground memory circuit and column decoder. Through the introduction of a double protection circuit, leakage current from the virtual ground memory is reduced and power consumed by the memory circuit is lowered. Ultimately, sensing range of data within the memory by a sense amplifier is improved.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: July 16, 2002
    Assignee: Macronix International Co., Ltd.
    Inventors: Lai-Ching Lin, Yu-Wei Lee, Sheau-Yung Shyu
  • Patent number: 6278649
    Abstract: An integrated circuit memory comprises an array of non-volatile memory cells arranged in rows and columns, and including a plurality of banks. There are a plurality of word lines along the plurality of rows in the array, and a plurality of array bit lines arranged along the plurality of columns. The array bit lines extend across the array, and include sense lines and ground lines. A plurality of bank bit lines is arranged along the plurality of columns. The bank bit lines extend across corresponding banks in the plurality of banks and are coupled to memory cells in the corresponding banks. A plurality of connection terminals are coupled to the array bit lines. For each array bit line there is at least one connection terminal per bank in the plurality of banks for which the array bit line will be used. A plurality of bank select transistors is provided to act as bank select circuitry.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: August 21, 2001
    Assignee: Macronix International Co., Ltd.
    Inventors: Yu-Wei Lee, Nien-Chao Yang