MRAM: A New Technology for the Future - NCCAVS - User Groups
MRAM: A New Technology for the Future - NCCAVS - User Groups
MRAM: A New Technology for the Future - NCCAVS - User Groups
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HOMOGENEITY OF TUNNEL BARRIER<br />
• …IN LARGE BIT POPULATIONS, IMPROVED BARRIER SHOWS<br />
REDUCED BIT-TO-BIT VARIABILITY<br />
Cumulative Probability<br />
0.99<br />
0.9<br />
0.7<br />
0.5<br />
0.3<br />
0.1<br />
0.01<br />
AlOx Tunnel Barrier:<br />
Barrier #1 - BASELINE<br />
Barrier #2<br />
TUNNEL BARRIERS<br />
Barrier #3<br />
Barrier #4 WITH IMPROVED<br />
Barrier #5 HOMOGENEITY<br />
-500 -300 -100 100 300 500 700<br />
Resistance Difference Between Neighbouring Bits [? ]<br />
CUMULATIVE PROBABILITY PLOTS OF RESISTANCE DIFFERENCE BETWEEN NEIGHBOURING<br />
BITS SAMPLED FROM THE ARRAYS OF MTJs WITH ALOx BARRIER PREPARED IN VARIOUS WAYS<br />
<strong>NCCAVS</strong> March 17, 2004<br />
18<br />
Kamel Ounadjela (kno@cypress.com)
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