FLASH MEMORY DEVICE WITH STEPPING CONVERGENCE PROGRAMMING SCHEME

摘要

The present invention relates to a threshold voltage of the cells in the initialization method program of the flash memory device , of the cells and the first convergence program applying a step voltage to a word line; For a predetermined period of time a constant voltage to the word line and a second step of continuously supplying the convergence program . Improve the dispersion of the cell during the start of the program via the above-mentioned initialization and threshold voltage , by reducing the number of loops required for the program may increase the program speed .