SYSTEM AND METHOD OF DETERMINING A PROGRAMMING STEP SIZE FOR A WORD LINE OF A MEMORY

摘要

A method for programming a multi-level non-volatile memory includes determining a programming step size for a word line of a memory in a data storage device. The programming step size is determined at least partially based on a count of memory elements of the word line to be programmed to a given state, in particular the lowest and highest voltage states. If the count of elements to be programmed to a state exceeds a threshold, then the step size is reduced from a larger to a smaller value. This enables a tighter distribution of threshold voltages to be obtained