Statistical analysis of retention behavior and lifetime prediction of HfOBxB-based RRAM
In this paper, statistical measurements on the retention behavior of the stable HfO x -based RRAM under various thermal/voltage/cycling stresses are investigated. Testing results show that, data retention of high resistance state (HRS) of a RRAM is insensitive to temperature and cycling-aging. An em...
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Published in | 2011 International Reliability Physics Symposium pp. MY.8.1 - MY.8.5 |
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Main Authors | , , , , , , , , , , , , |
Format | Conference Proceeding |
Language | English |
Published |
IEEE
01.04.2011
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Subjects | |
Online Access | Get full text |
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Summary: | In this paper, statistical measurements on the retention behavior of the stable HfO x -based RRAM under various thermal/voltage/cycling stresses are investigated. Testing results show that, data retention of high resistance state (HRS) of a RRAM is insensitive to temperature and cycling-aging. An empirical equation involving the voltage/thermal/cycling-stress acceleration is given for lifetime prediction. 10 years lifetime can be obtained with a constant read voltage of 0.2 V even at 160°C. Also the set time of the RRAM extrapolated by the empirical equation coincides with the experiment value. In addition, the shallow Weibull slope of the retention time can be improved when the variations of the initial resistance is well controlled. |
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ISBN: | 1424491134 9781424491131 |
ISSN: | 1541-7026 1938-1891 |
DOI: | 10.1109/IRPS.2011.5784591 |