Apparatus for reducing the impact of program disturb during...

Static information storage and retrieval – Floating gate – Disturbance control

Reexamination Certificate

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C365S185030

Reexamination Certificate

active

07426137

ABSTRACT:
The unintentional programming of an unselected (or inhibited) non-volatile storage element during a program operation that intends to program another non-volatile storage element is referred to as “program disturb.” A system is proposed for programming and/or reading non-volatile storage that reduces the effect of program disturb. In one embodiment, different verify levels are used for a particular word line (or other grouping of storage elements) during a programming process. In another embodiment, different compare levels are used for a particular word (or other grouping of storage elements) during a read process.

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