Static information storage and retrieval – Addressing – Particular decoder or driver circuit
Reexamination Certificate
2011-07-19
2011-07-19
Mai, Son L (Department: 2827)
Static information storage and retrieval
Addressing
Particular decoder or driver circuit
C365S051000, C365S063000, C365S195000, C365S230010
Reexamination Certificate
active
07983109
ABSTRACT:
A phase change memory capable of highly reliable operations is provided. A semiconductor device has a memory array having a structure in which memory cells are stacked including memory layers using a chalcogenide material and diodes, and initialization conditions and write conditions are changed according to the layer in which a selected memory cell is positioned. The initialization conditions and write conditions (herein, reset conditions) are changed according to the operation by selecting a current mirror circuit according to the operation and by a control mechanism of a reset current in a voltage select circuit and the current mirror circuit.
REFERENCES:
patent: 6922768 (2005-07-01), Honda et al.
patent: 7394680 (2008-07-01), Toda et al.
patent: 7606059 (2009-10-01), Toda
patent: 7715250 (2010-05-01), Norman
patent: 7752381 (2010-07-01), Wong
patent: 7813210 (2010-10-01), Norman
patent: 2001/0037435 (2001-11-01), Van Doren
patent: 2004/0232460 (2004-11-01), Kajiyama
patent: 2005/0169037 (2005-08-01), Nishihara
patent: 2007/0153653 (2007-07-01), Kim et al.
patent: 2007/0253242 (2007-11-01), Parkinson et al.
patent: 2008/0034153 (2008-02-01), Lee et al.
patent: 2008/0086588 (2008-04-01), Danilak et al.
patent: 2009/0119450 (2009-05-01), Saeki et al.
patent: 2009/0141532 (2009-06-01), Nagashima et al.
patent: 2010/0058127 (2010-03-01), Terao et al.
patent: 2003-060171 (2003-02-01), None
patent: 2004-266220 (2004-09-01), None
patent: 2007-501519 (2007-01-01), None
patent: 2005/017904 (2005-02-01), None
Kwang-Jin Lee et al., “A 90nm 1.8V 512Mb Diode-Switch PRAM with 266MB/s Read Throughput”, IEEE International Solid-State Circuits Conference, Digest of Technical Papers, USA, 2007, pp. 472-473 and 616.
Hanzawa Satoru
Kume Hitoshi
Hitachi , Ltd.
Mai Son L
Miles & Stockbridge P.C.
LandOfFree
Semiconductor device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Semiconductor device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2646125