Chin. Phys. Lett.  2010, Vol. 27 Issue (10): 108101    DOI: 10.1088/0256-307X/27/10/108101
CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
Si3.5Sb2Te3 Phase Change Material for Low-Power Phase Change Memory Application
REN Kun1,2, RAO Feng1, SONG Zhi-Tang1, WU Liang-Cai1, ZHOU Xi-Lin1, XIA Meng-Jiao1, LIU Bo1, FENG Song-Lin1, XI Wei1, YAO Dong-Ning1, CHEN Bomy3
1State Key Laboratory of Functional Materials for Informatics, Laboratory of Nanotechnology, Shanghai Institute of Micro-System and Information Technology, Chinese Academy of Sciences, Shanghai 200050
2Graduate School of the Chinese Academic of Sciences, Beijing 100049
3Silicon Storage Technology, Inc., 1171 Sonora Court, Sunnyvale, CA 94086, U.S.A.
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REN Kun, RAO Feng, SONG Zhi-Tang et al  2010 Chin. Phys. Lett. 27 108101
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Abstract Novel Si3.5Sb2Te3 phase change material for phase change memory is prepared by sputtering of Si and Sb2Te3 alloy targets. Crystalline Si3.5Sb2Te3 is a stable composite material consisting of amorphous Si and crystalline Sb2Te3, without separated Te phase. The thermally stable Si3.5Sb2Te3 material has data retention ability (10 years at 412 K) better than that of the Ge2Sb2Te5 material (10 years at 383 K). Phase change memory device based on Si3.5Sb2Te3 is successfully fabricated, showing low power consumption. Up to 2.2×107 cycles of endurance have been achieved with a resistance ratio lager than 300.
Keywords: 81.07.-b      85.30.De      61.66.Fn      81.05.-t      81.05.Zx     
Received: 21 June 2010      Published: 26 September 2010
PACS:  81.07.-b (Nanoscale materials and structures: fabrication and characterization)  
  85.30.De (Semiconductor-device characterization, design, and modeling)  
  61.66.Fn (Inorganic compounds)  
  81.05.-t (Specific materials: fabrication, treatment, testing, and analysis)  
  81.05.Zx (New materials: theory, design, and fabrication)  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/27/10/108101       OR      https://cpl.iphy.ac.cn/Y2010/V27/I10/108101
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REN Kun
RAO Feng
SONG Zhi-Tang
WU Liang-Cai
ZHOU Xi-Lin
XIA Meng-Jiao
LIU Bo
FENG Song-Lin
XI Wei
YAO Dong-Ning
CHEN Bomy
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