Phase change memory apparatus

Details Phase change memory apparatus Phase change memory apparatus

2011-07-19

2011-07-19

Le, Vu A (Department: 2824)

Static information storage and retrieval

Systems using particular element

Amorphous

C365S148000, C365S210100, C365S210150

Reexamination Certificate

active

07983077

ABSTRACT:
A phase change memory apparatus is presented. The phase change memory apparatus includes a phase change memory cell, a sense amplifier, and a voltage selecting unit. The sense amplifier is configured to differentially amplify a current that through the memory cell and a comparison voltage. The voltage selecting unit is configured to provide a reference voltage as the comparison voltage when performing a normal read function and to selectively provide either a first voltage level or a second voltage level as the comparison voltage in accordance with data when performing a verify read function.

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