Static information storage and retrieval – Floating gate – Particular biasing
Reexamination Certificate
2008-06-10
2008-06-10
Le, Thong Q. (Department: 2827)
Static information storage and retrieval
Floating gate
Particular biasing
C365S185290, C365S185280
Reexamination Certificate
active
07385854
ABSTRACT:
A flash non-volatile memory system that normally operates its memory cells in multiple storage states is provided with the ability to operate some selected or all of its memory cell blocks in two states instead. The two states are selected to be the furthest separated of the multiple states, thereby providing an increased margin during two state operation. This allows faster programming and a longer operational life of the memory cells being operated in two states when it is more desirable to have these advantages than the increased density of data storage that multi-state operation provides.
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Davis , Wright, Tremaine, LLP
Le Thong Q.
SanDisk Corporation
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