2T2R-1T1R mix mode phase change memory array

Static information storage and retrieval – Systems using particular element – Amorphous

Reexamination Certificate

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C365S189150, C365S148000

Reexamination Certificate

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08064248

ABSTRACT:
A memory device as described herein includes an array of programmable resistance memory cells. The memory device further includes sense circuitry having a dual memory cell (2T-2R) mode to read a data value stored in a pair of memory cells in the array based on a difference in resistance between a first memory cell in the pair and a second memory cell in the pair. The sense circuitry also has a single memory cell (1T-1R) mode to read a data value in a particular memory cell in the array based on the resistance of the particular memory cell.

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