Multi-bit flash memory device and program and read methods...

Static information storage and retrieval – Floating gate – Multiple values

Reexamination Certificate

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C365S185180

Reexamination Certificate

active

07876614

ABSTRACT:
The flash memory device of the present invention is configured to program a plurality of bits per unit cell, wherein a program condition of a selected bit is set according to whether a program for the most previous bit to the selected bit for programming is skipped or not skipped. As a result, an accurate programming and reading operation is possible even in case a program for a middle bit is skipped.

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