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|Title:||Engineering grains of Ge2Sb2Te5 for realizing fast-speed, low-power, and low-drift phase-change memories with further multilevel capabilities|
|Citation:||Wang, W.J.,Loke, D.,Law, L.T.,Shi, L.P.,Zhao, R.,Li, M.H.,Chen, L.L.,Yang, H.X.,Yeo, Y.C.,Adeyeye, A.O.,Chong, T.C.,Lacaita, A.L. (2012). Engineering grains of Ge2Sb2Te5 for realizing fast-speed, low-power, and low-drift phase-change memories with further multilevel capabilities. Technical Digest - International Electron Devices Meeting, IEDM : 31.3.1-31.3.4. ScholarBank@NUS Repository. https://doi.org/10.1109/IEDM.2012.6479143|
|Abstract:||Phase-change memory (PCM) represents one of the best candidates for a 'universal memory'. However, its slow SET speed, high RESET power, and high resistance drift present key challenges towards this ambition. Here, grain-engineered Ge2Sb2Te5 is exploited to control the crystallization kinetics, and electrical properties of PCM. We report 120 % higher SET speeds with respect to conventional scaling. Good stability (140 °C), 30 % RESET power reduction, and 2X lower resistance drift were also achieved. A 4-state/2-bit multilevel cell was further demonstrated. This provides a route to making high-density PCM devices. © 2012 IEEE.|
|Source Title:||Technical Digest - International Electron Devices Meeting, IEDM|
|Appears in Collections:||Staff Publications|
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