Patents by Inventor Yu Chen Wang

Yu Chen 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 AND APPARATUS FOR LEAKAGE SUPPRESSION IN FLASH MEMORY
    Publication number: 20120262988
    Abstract: Techniques are described herein for detecting and recovering over-erased memory cells in a flash memory device. In one embodiment, a flash memory device is described including a memory array including a plurality of blocks of memory cells. The device also includes a controller to perform a leakage-suppression process. The leakage-suppression process includes determining that a given block of memory cells includes one or more over-erased memory cells. Upon the determination, the leakage-suppression process also includes performing a soft program operation to increase the threshold voltage of the over-erased memory cells in the given block.
    Type: Application
    Filed: November 30, 2011
    Publication date: October 18, 2012
    Applicant: Macronix International Co., Ltd.
    Inventors: Nai-Ping Kuo, Su-Chueh Lo, Kuen-Long Chang, Chun-Hsiung Hung, Chia-Feng Cheng, Ken-Hui Chen, Yu-Chen Wang
  • METHOD AND APPARATUS FOR LEAKAGE SUPPRESSION IN FLASH MEMORY IN RESPONSE TO EXTERNAL COMMANDS
    Publication number: 20120262987
    Abstract: Techniques are described herein for detecting and recovering over-erased memory cells in a flash memory device. In one embodiment, a flash memory device includes a memory array including a plurality of blocks of memory cells. The device also includes a command interface to receive a command from a source external to the memory device. The device also includes a controller including logic to perform a leakage-suppression process in response to the command. The leakage-suppression process includes performing a soft program operation to increase a threshold voltage of one or more over-erased memory cells in a given block of memory cells and establish an erased state.
    Type: Application
    Filed: November 30, 2011
    Publication date: October 18, 2012
    Applicant: Macronix International Co., Ltd.
    Inventors: Nai-Ping Kuo, Su-Chueh Lo, Kuen-Long Chang, Chun-Hsiung Hung, Chia-Feng Cheng, Ken-Hui Chen, Yu-Chen Wang
  • Method and apparatus for protection of non-volatile memory in presence of out-of-specification operating voltage
    Patent number: 8208323
    Abstract: A method and apparatus for protecting non-volatile memory is described. A write command is processed only when an operating voltage is between specified operating limits and when a data pattern stored in the non-volatile memory is repeatedly read successfully.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: June 26, 2012
    Assignee: Macronix International Co., Ltd.
    Inventors: Chun Hsiung Hung, Kuen Long Chang, Nai Ping Kuo, Ken Hui Chen, Yu Chen Wang
  • METHOD AND APPARATUS FOR PROTECTION OF NON-VOLATILE MEMORY IN PRESENCE OF OUT-OF-SPECIFICATION OPERATING VOLTAGE
    Publication number: 20110216607
    Abstract: A method and apparatus for protecting non-volatile memory is described. A write command is processed only when an operating voltage is between specified operating limits and when a data pattern stored in the non-volatile memory is repeatedly read successfully.
    Type: Application
    Filed: May 16, 2011
    Publication date: September 8, 2011
    Inventors: Chun Hsiung Hung, Kuen Long Chang, Nai Ping Kuo, Ken Hui Chen, Yu Chen Wang
  • Method and apparatus for protection of non-volatile memory in presence of out-of-specification operating voltage
    Patent number: 7969803
    Abstract: A method and apparatus for protecting non-volatile memory is described. A write command is processed only when an operating voltage is between specified operating limits and when a data pattern stored in the non-volatile memory is repeatedly read successfully.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: June 28, 2011
    Assignee: Macronix International Co., Ltd.
    Inventors: Chun Hsiung Hung, Kuen Long Chang, Nai Ping Kuo, Ken Hui Chen, Yu Chen Wang
  • METHOD AND APPARATUS FOR PROTECTION OF NON-VOLATILE MEMORY IN PRESENCE OF OUT-OF-SPECIFICATION OPERATING VOLTAGE
    Publication number: 20100149893
    Abstract: A method and apparatus for protecting non-volatile memory is described. A write command is processed only when an operating voltage is between specified operating limits and when a data pattern stored in the non-volatile memory is repeatedly read successfully.
    Type: Application
    Filed: July 13, 2009
    Publication date: June 17, 2010
    Inventors: Chun Hsiung Hung, Kuen Long Chang, Nai Ping Kuo, Ken Hui Chen, Yu Chen Wang