Memory circuit and method for providing an item of...

Static information storage and retrieval – Systems using particular element – Multiaperture cell

Reexamination Certificate

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C365S100000

Reexamination Certificate

active

07106614

ABSTRACT:
The invention relates to a memory circuit for providing an item of information for a prescribed period of time. The memory circuit has a memory cell with a PMC resistance component which has a solid electrolyte material and a write circuit for writing to the memory cell by applying an electrical variable to the solid electrolyte material. The write circuit is configured to set a resistance of the PMC resistance component on the basis of the prescribed period of time. The resistance corresponds to a logic state of the memory cell and increases over time such that the resistance reaches or exceeds a prescribed resistance threshold value in the prescribed period of time.

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M.N. Kozicki, M. Yun, L. Hilt, and A. Singh,Application Of Programmable Resistance Changes in Metal-Doped Chalcogenides, Electromechanical Society Proc., vol. 99-13, pp. 298-309 (1999).

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