Nonvolatile semiconductor memory device and nonvolatile...

Details Nonvolatile semiconductor memory device and nonvolatile... Nonvolatile semiconductor memory device and nonvolatile...

2007-11-02

2009-11-03

Ho, Hoai V (Department: 2827)

Static information storage and retrieval

Floating gate

Particular biasing

C365S185280, C365S185170, C365S185090

Reexamination Certificate

active

07613048

ABSTRACT:
A nonvolatile semiconductor memory device including a memory cell array including a plurality of electrically rewritable nonvolatile memory cells arranged in series, the memory cell storing data using a plurality of threshold levels, a threshold level storage section storing a programming method switch threshold level on which a first programming method and a second programming method are switched, a comparison circuit comparing the programming method switch threshold level with a programming data threshold level and outputting a comparison result, a control signal generation circuit setting the first programming method or the second programming method based on the comparison result and outputting a control signal corresponding to the first programming method or the second programming method and a voltage generation circuit generating a programming voltage and an intermediate voltage which are applied to the memory cell based on the control signal.

REFERENCES:
patent: 6134148 (2000-10-01), Kawahara et al.
patent: 6643188 (2003-11-01), Tanaka et al.
patent: 6958936 (2005-10-01), Quader et al.
patent: 7173859 (2007-02-01), Hemink
patent: 2007/0081388 (2007-04-01), Joo
patent: 2003-196988 (2003-07-01), None
patent: 1020070039720 (2007-04-01), None

Affiliated with

Also associated with

Rating

Nonvolatile semiconductor memory device and nonvolatile... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Nonvolatile semiconductor memory device and nonvolatile..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nonvolatile semiconductor memory device and nonvolatile... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4096991