US 7,463,546 B2
Method for using a passive element memory array incorporating reversible polarity word line and bit line decoders
Luca G. Fasoli, San Jose, Calif. (US); Christopher J. Petti, Mountain View, Calif. (US); and Roy E. Scheuerlein, Cupertino, Calif. (US)
Assigned to SanDisk 3D LLC, Milpitas, Calif. (US)
Filed on Jul. 31, 2006, as Appl. No. 11/461,364.
Prior Publication US 2008/0025132 A1, Jan. 31, 2008
This patent is subject to a terminal disclaimer.
Int. Cl. G11C 8/00 (2006.01)
U.S. Cl. 365—230.06  [365/230.05; 365/163; 365/154; 365/174; 365/148] 25 Claims
OG exemplary drawing
 
1. A method for operating an integrated circuit memory array, said memory array comprising a cross-point array of passive element memory cells, each coupled between an associated word line and an associated bit line, said method comprising:
in a first mode of operation, biasing selected word lines at a lower voltage than unselected word lines, and biasing selected bit lines at a higher voltage than unselected bit lines; and
in a second mode of operation, biasing selected word lines at a higher voltage than unselected word lines, and biasing selected bit lines at a lower voltage than unselected bit lines.