Static information storage and retrieval – Read/write circuit – Data refresh
Reexamination Certificate
2006-07-25
2006-07-25
Nguyen, Tuan T. (Department: 2824)
Static information storage and retrieval
Read/write circuit
Data refresh
C365S189090, C365S203000
Reexamination Certificate
active
07082073
ABSTRACT:
A dynamic random access memory (“DRAM”) device is operable in either a normal refresh mode or a static refresh mode, such as a self-refresh mode. A cell plate voltage selector couples a voltage of one-half the supply voltage to the cell plate of a DRAM array in a normal refresh mode and in the static refresh mode when memory cells are being refreshed. In between refresh bursts in the static refresh mode, the cell plate voltage selector couples a reduced voltage to the cell plate. This reduces the voltage reduces the voltage across diode junctions formed between the source/drain of respective access transistor and the substrate. The reduced voltage reduces the discharge current flowing from memory cells capacitors, thereby allowing a reduction in the required refresh rate and a consequential reduction in power consumption.
REFERENCES:
patent: 5262998 (1993-11-01), Mnich et al.
patent: 5886932 (1999-03-01), Choi
patent: 5956281 (1999-09-01), Nakai et al.
patent: 6034916 (2000-03-01), Lee
patent: 6064625 (2000-05-01), Tomita
patent: 6081477 (2000-06-01), Li
patent: 6097658 (2000-08-01), Satoh et al.
patent: 6188638 (2001-02-01), Kuhne
patent: 6201756 (2001-03-01), Lee
patent: 6215710 (2001-04-01), Han et al.
patent: 6229757 (2001-05-01), Nagata et al.
patent: 6288971 (2001-09-01), Kim
patent: 6292410 (2001-09-01), Yi et al.
patent: 6407963 (2002-06-01), Sonoda et al.
patent: 6466491 (2002-10-01), Yanagawa
patent: 6529993 (2003-03-01), Rogers et al.
patent: 6728162 (2004-04-01), Lee et al.
patent: 6760261 (2004-07-01), Partsch et al.
patent: 6760856 (2004-07-01), Borkenhagen et al.
patent: 6771552 (2004-08-01), Fujisawa
patent: 6775190 (2004-08-01), Setogawa
patent: 6819599 (2004-11-01), Schaefer
patent: 6934211 (2005-08-01), Hazama et al.
Dorsey & Whitney LLP
Micro)n Technology, Inc.
Nguyen Dang
Nguyen Tuan T.
LandOfFree
System and method for reducing power consumption during... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for reducing power consumption during..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for reducing power consumption during... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3547710