Flash memory device and erase method thereof

Details Flash memory device and erase method thereof Flash memory device and erase method thereof

2007-09-17

2010-06-08

Nguyen, Tuan T. (Department: 2824)

Static information storage and retrieval

Floating gate

Particular biasing

C365S185220, C365S189090

Reexamination Certificate

active

07733706

ABSTRACT:
A flash memory device and an erase method thereof are included. The erase method includes performing an erase operation of a memory cell block including a plurality of pages, performing an erase verify operation and storing unerased page information about a page including unerased memory cells that have not been normally erased, and performing an additional erase operation of the page including the unerased memory cells based on the unerased page information. When the unerased memory cells exist, the erase verify operation and the additional erase operation are performed repeatedly.

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