Memory block erasing in a flash memory device

Details Memory block erasing in a flash memory device Memory block erasing in a flash memory device

2008-05-13

2008-05-13

Hoang, Huan (Department: 2827)

Static information storage and retrieval

Floating gate

Particular biasing

C365S185220

Reexamination Certificate

active

07372742

ABSTRACT:
The erase and verify method performs an erase operation and an erase verify read operation. If the erase verify read operation fails because unerased memory cells have been found, a normal memory read operation is performed in order to determine which memory cells are still programmed. A selective erase operation is then performed on the memory cells such that only the rows that comprise unerased memory cells undergo additional erase operations.

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