Complementary bit PCRAM sense amplifier and method of operation
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United States of America Patent
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Jan 11, 2011
Grant Date -
Sep 18, 2008
app pub date -
Mar 11, 2008
filing date -
Nov 20, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus is disclosed for sensing the resistance state of a Programmable Conductor Random Access Memory (PCRAM) element using complementary PCRAM elements, one holding the resistance state being sensed and the other holding a complementary resistance state. A sense amplifier detects voltages discharging through the high and low resistance elements to determine the resistance state of an element being read.
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