Static information storage and retrieval – Systems using particular element – Amorphous
Reexamination Certificate
2006-04-20
2008-08-19
Le, Vu A (Department: 2824)
Static information storage and retrieval
Systems using particular element
Amorphous
C365S174000
Reexamination Certificate
active
07414883
ABSTRACT:
A memory may be implemented with a stable chalcogenide glass which is defined as a generally amorphous chalcogenide material that does not change to a generally crystalline phase when exposed to 200° C. for 30 minutes or less. Different states may be programmed by changing the threshold voltage of the material. The threshold voltage may be changed with pulses of different amplitude and/or different pulse fall times. Reading may be done using a reference level between the threshold voltages of the two different states. A separate access device is generally not needed.
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Vazques et al., “Evaluation of the Glass Forming Ability of Some Alloys in the Sb-As-Se System by Differential Scanning Calorimetry”, Journal of Alloys and Compounds, Elsevier Sequoia, Lausanne, CH, vol. 354, No. 1-2, May. 12, 2003, pp. 153-158.
International Search Report dated Mar. 29, 2007 from the PCT counterpart application.
Gordon George A.
Karpov Ilya V.
Kuo Charles C.
Lowrey Tyler A.
Ovshinsky Stanford
Intel Corporation
Le Vu A
Trop Pruner & Hu P.C.
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