Flash memory device having single page buffer structure and...

Static information storage and retrieval – Floating gate – Multiple values

Reexamination Certificate

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C365S185050, C365S185120, C365S185170

Reexamination Certificate

active

07457158

ABSTRACT:
A flash memory device is provided, and the flash memory device comprises memory cells, a sense node connected to a selected bit line, a load circuit connected to the sense node, and first and second sense and register circuits, each connected to the sense node. The first sense and register circuit is configured to store a first data value in accordance with the voltage level of the sense node during an initial read interval of a multi-bit program operation. The load circuit is configured to selectively pre-charge the sense node in accordance with the data value stored in the first sense and register circuit during a verify read interval of the multi-bit program operation. A multi-bit programming method for the flash memory device is also provided.

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patent: 1020010100809 (2004-11-01), None
patent: 1020050007653 (2005-01-01), None

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