Sensing circuit of a phase change memory and sensing method...

Details Sensing circuit of a phase change memory and sensing method... Sensing circuit of a phase change memory and sensing method...

2011-04-26

2011-04-26

Luu, Pho M (Department: 2824)

Static information storage and retrieval

Systems using particular element

Amorphous

C365S196000, C365S210100, C365S203000

Reexamination Certificate

active

07933147

ABSTRACT:
A sensing circuit of a phase change memory. The sensing circuit comprises a data current source and a reference current source, a storage memory device and a reference memory device, a storage switch and a reference switch, an auxiliary current source and a comparator. First terminals of the storage memory device and the reference memory device are respectively coupled to the data current source and the reference current source. The storage switch and the reference switch are respectively coupled to second terminals of the storage memory device and the reference memory device. The auxiliary current source is dynamically coupled to the first terminals of the storage memory device and the reference memory device. The comparator is coupled to the first terminals of the storage memory device and the reference memory device.

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