Nonvolatile semiconductor memory device and voltage...

Details Nonvolatile semiconductor memory device and voltage... Nonvolatile semiconductor memory device and voltage...

2005-11-01

2008-09-23

Dinh, Son (Department: 2824)

Static information storage and retrieval

Floating gate

Particular biasing

C365S189090, C365S204000, C257S299000, C375S374000, C327S144000, C327S148000

Reexamination Certificate

active

07428169

ABSTRACT:
A nonvolatile semiconductor memory device includes a memory cell array of a plurality of memory cells; and a voltage generating circuit for generating a programming voltage to be applied to the memory cells. The voltage generating circuit includes a first voltage generating unit for generating a negative voltage through a first charge pump; and a second voltage generating unit for generating a positive voltage through a second charge pump. During an accelerated programming operation, the first voltage generating unit increases a pumping efficiency of the first charge pump using an external power supply voltage, and the second voltage generating unit directly outputs the external power supply voltage.

REFERENCES:
patent: 5491657 (1996-02-01), Haddad et al.
patent: 6125056 (2000-09-01), Chen et al.
patent: 6891764 (2005-05-01), Li
patent: 7072238 (2006-07-01), Chae et al.
patent: 7173840 (2007-02-01), Krause et al.
patent: 2006/0186947 (2006-08-01), Lin et al.
patent: 10-247386 (1998-09-01), None
patent: 10-255469 (1998-09-01), None
patent: 2000-049299 (2000-02-01), None
patent: 1020000030505 (2000-06-01), None
patent: 2000-0043892 (2000-07-01), None
patent: 1020030049451 (2003-06-01), None
patent: 1020040002132 (2004-01-01), None

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