Abstract: A method and system of finding a read voltage for a flash memory is disclosed. Data are read from array cells of the flash memory with a default read voltage, and a recorded state bit number that is recorded during programming is also read. Determine an optimal read voltage if the readout data do not pass the error correction control (ECC). Data are then re-read from the array cells of the flash memory with the determined optimal read voltage.
Type:
Application
Filed:
August 18, 2009
Publication date:
February 24, 2011
Applicant:
SKYMED CORPORATION
Inventors:
Ming-Hung Chou, Chien-Fu Huang, Han-Lung Huang, Shih-Keng Cho