16869424

Paragraph Number

185

Positive shift correlation 724 and Negative shift correlation 726 are both examples of shift correlations. "Shift correlation" refers to a correlation in which memory cells of a cell threshold voltage distribution within a first memory state change or shift in threshold voltage (either increasing or decreasing) in response to passage of time, or use of a storage device, in a manner that correlates to a change or shift in threshold voltage (either increasing or decreasing) for memory cells of a cell threshold voltage distribution within a second memory state. A shift correlation may exist between any two memory states used for a set of memory cells.

Added by DJM 12 2021