Chin. Phys. Lett.  2012, Vol. 29 Issue (3): 038104    DOI: 10.1088/0256-307X/29/3/038104
CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
An Integrated Phase Change Memory Cell with Dual Trench Epitaxial Diode Selector
ZHANG Chao1,2,3**, SONG Zhi-Tang1, WU Guan-Ping2, LIU Bo1**, WANG Lian-Hong2, XU Jia2, LIU Yan1, WANG Lei2, YANG Zuo-Ya2, FENG Song-Lin1
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
2United Lab, Semiconductor Manufacturing International Corporation, Shanghai 201203
3Graduate University of the Chinese Academy of Sciences, Beijing 100049
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ZHANG Chao, YANG Zuo-Ya, XU Jia et al  2012 Chin. Phys. Lett. 29 038104
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Abstract An integrated phase change memory cell with dual trench epitaxial diode is successfully integrated in the traditional 0.13 µm CMOS technology. By using dual trench isolated structure in the memory cell, it is feasible to employ a Si−diode as a selector for integration in a crossbar structure for high-density phase change memory even at 45 nm technology node and beyond. A cross-point memory selector with a large on/off current ratio is demonstrated, the diode provides nine orders of magnitude isolation between forward and reverse biases in the SET state. A low SET programming current of 0.7 mA is achieved and RESET/SET resistance difference of 10000× is obtained.
Keywords: 81.05.Cy      73.61.Ey      73.40.Qv     
Received: 16 December 2011      Published: 11 March 2012
PACS:  81.05.Cy (Elemental semiconductors)  
  73.61.Ey (III-V semiconductors)  
  73.40.Qv (Metal-insulator-semiconductor structures (including semiconductor-to-insulator))  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/29/3/038104       OR      https://cpl.iphy.ac.cn/Y2012/V29/I3/038104
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ZHANG Chao
YANG Zuo-Ya
XU Jia
WU Guan-Ping
WANG Lian-Hong
WANG Lei
SONG Zhi-Tang
LIU Yan
LIU Bo
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