NAND flash memory and blank page search method therefor

Details NAND flash memory and blank page search method therefor NAND flash memory and blank page search method therefor

2007-01-09

2007-01-09

Le, Vu A. (Department: 2824)

Static information storage and retrieval

Read/write circuit

Having particular data buffer or latch

C365S189090

Reexamination Certificate

active

11292347

ABSTRACT:
A semiconductor memory device includes a memory cell array, data buffer, and column switch. The data buffer senses the potential of a bit line to determine data in a selected memory cell and hold readout data in a read. The data buffer detects both whether the whole data buffer holds “0” data and whether the whole data buffer holds “1” data. The column switch selects part of the data buffer and connects the part to a bus.

REFERENCES:
patent: 5418737 (1995-05-01), Tran
patent: 5610859 (1997-03-01), Nakamura et al.
patent: 5761122 (1998-06-01), Nakamura et al.
patent: 6282121 (2001-08-01), Cho et al.
patent: 6646930 (2003-11-01), Takeuchi et al.

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