16869424

Paragraph Number

118

In FIG. 4, the Vt window may begin at the low end of the erased memory state 402 ("Er") and extend to the upper end/boundary of the "O" memory state. The graph includes erased memory state 402 and memory states "A"-"O" for a total of 16 memory states to represent 4 bits stored in each memory cell. Certain memory states are adjacent memory states. "Adjacent memory state" refers to a memory state that neighbors a given memory state along a range of threshold voltages with no memory states defined between the given memory state and the adjacent memory state. "Er" memory state (erased memory state 402) and "A" memory state are adjacent memory states. Similarly, "A" memory state and "B" memory state are adjacent memory states. "A" memory state and "C" memory state are not adjacent memory states because "B" memory state is between them.

Added by DJM 12 2021