Nand-structured flash memory

Details Nand-structured flash memory Nand-structured flash memory

2007-06-28

2009-12-08

Nguyen, Dang T (Department: 2824)

Static information storage and retrieval

Read/write circuit

Differential sensing

C365S185170, C365S185230

Reexamination Certificate

active

07630261

ABSTRACT:
A NAND-structured flash memory including a selection transistor having a first conducting path, one end of the first conducting path being connected to a bit line or a source line, at least one dummy gate having a second conducting path and a control gate, one end of the second conducting path being connected to the other end of the first conducting path of the selection transistor, a nonvolatile memory linked unit for storing external data, which includes a plurality of electrically erasable/writable nonvolatile memory cells having third conducting paths and control gates, the third conducting paths being connected in series, one end of the series of the third conducting paths being connected to the other end of the second conducting path of the dummy gate, a dummy gate driving circuit controlling a potential of the control gate of the dummy gate, and a memory cell driving circuit selectively driving the control gates of the plurality of nonvolatile memory cells to write, read or erase bit data for storing the external data.

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