Flash memory device with redundant columns

Details Flash memory device with redundant columns Flash memory device with redundant columns

2010-10-05

2011-12-20

Pham, Ly D (Department: 2827)

Static information storage and retrieval

Floating gate

Particular connection

C365S185110, C365S189020, C365S189050, C365S200000, C365S230030, C365S230040

Reexamination Certificate

active

08081511

ABSTRACT:
Apparatus and methods are disclosed, such as those involving a flash memory device. One such apparatus includes a memory block including a plurality of columns. Each of the columns includes a bit line and a plurality of memory cells on the bit line. The plurality of columns include a plurality of groups of regular columns and a plurality of groups of redundant columns. The apparatus also includes a plurality of data latches. Each of the data latches is configured to store data read from a respective one group of regular columns. The apparatus further includes a plurality of redundant data latches. Each of the redundant data latches is configured to store data read from a respective one group of redundant columns. The apparatus also includes a multiplexer configured to selectively output data from the plurality of data latches and the plurality of redundant data latches.

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