Static information storage and retrieval – Systems using particular element – Amorphous
Reexamination Certificate
2011-01-04
2011-01-04
Nguyen, Tan T. (Department: 2827)
Static information storage and retrieval
Systems using particular element
Amorphous
C365S148000
Reexamination Certificate
active
07864567
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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Gordon George A.
Karpov Ilya V.
Kuo Charles C.
Lowrey Tyler A.
Ovshinsky Stanford
Nguyen Tan T.
Ovonyx Inc.
Trop Pruner & Hu P.C.
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