Non-volatile semiconductor memory device

Details Non-volatile semiconductor memory device Non-volatile semiconductor memory device

2005-08-09

2005-08-09

Mai, Son (Department: 2827)

Static information storage and retrieval

Floating gate

Particular biasing

C365S185110, C365S185280, C365S185290

Reexamination Certificate

active

06928002

ABSTRACT:
A non-volatile semiconductor memory device comprises a plurality of blocks each having a plurality of memory cells to be erased at a time and a decoder for selecting the memory cells, each of the blocks having a block decoder for latching a selection signal thereof in pre-programming and for selecting all of the latched blocks by the selection signal at the same time, a sense amplifier, and an address control circuit for controlling a sequence, the sequence including counting addresses of the memory cells in erasing and erasing all of the selected memory cells after pre-programming, all of the blocks having the latched selection signal being controlled to be collectively erased by the address control circuit.

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patent: 6778443 (2004-08-01), Shiga et al.

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