Static information storage and retrieval – Floating gate – Multiple values
Reexamination Certificate
2007-10-17
2010-02-02
Phan, Trong (Department: 2827)
Static information storage and retrieval
Floating gate
Multiple values
C365S185180, C365S185190, C365S185220, C365S185240, C365S185330
Reexamination Certificate
active
07656705
ABSTRACT:
Methods of rapidly programming a wordline of multi-level flash memory cells comprising memory cell element-pairs having three or more data levels per bit or element corresponding to three or more threshold voltages are provided. An interactive program algorithm rapidly programs the elements of the wordline of memory cells in a learn phase and a single core programming phase. In one embodiment, each wordline comprises learn element-pairs first programmed to provide learn drain voltages for programming core element-pairs along the wordline having the same program pattern of data levels. A set comprising one or more program patterns is chosen to correspond with each program level used on the wordline. The learn element-pairs are programmed to determine a learned program drain voltage for each program level. This learned program drain voltage essentially provides a wordline and program level specific program characterization of the Vd required for the remaining elements of that wordline.
REFERENCES:
patent: 6538923 (2003-03-01), Parker
patent: 6834012 (2004-12-01), He et al.
patent: 7038948 (2006-05-01), Hamilton et al.
patent: 7038950 (2006-05-01), Hamilton et al.
patent: 7042766 (2006-05-01), Wang et al.
patent: 7113431 (2006-09-01), Hamilton et al.
patent: 7130210 (2006-10-01), Bathul et al.
patent: 7149126 (2006-12-01), Ogura et al.
patent: 7342830 (2008-03-01), Chen et al.
patent: 7447077 (2008-11-01), Ogura et al.
Bathul Fatima
Hamilton Darlene
Li Ou
Tanpairoj Kulachet
Eschweiler & Associates LLC
Phan Trong
Spansion LLC
LandOfFree
Fast single phase program algorithm for quadbit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fast single phase program algorithm for quadbit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fast single phase program algorithm for quadbit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4205070