Phase change materials and phase change memory

被引:425
作者
Raoux, Simone [1 ]
Xiong, Feng [2 ]
Wuttig, Matthias [3 ,4 ]
Pop, Eric [2 ]
机构
[1] Helmholtz Zentrum Berlin Mat & Energie GmbH, Inst Nanospect Energy Mat Design & Optimizat, Berlin, Germany
[2] Stanford Univ, Stanford, CA 94305 USA
[3] Rhein Westfal TH Aachen, Inst Phys, Aachen, Germany
[4] Rhein Westfal TH Aachen, Julich Aachen Res Alliance Fundamentals Future In, Aachen, Germany
基金
美国国家科学基金会;
关键词
RANDOM-ACCESS MEMORY; STORAGE; GE2SB2TE5; FILMS;
D O I
10.1557/mrs.2014.139
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Phase change memory (PCM) is an emerging technology that combines the unique properties of phase change materials with the potential for novel memory devices, which can help lead to new computer architectures. Phase change materials store information in their amorphous and crystalline phases, which can be reversibly switched by the application of an external voltage. This article describes the advantages and challenges of PCM. The physical properties of phase change materials that enable data storage are described, and our current knowledge of the phase change processes is summarized. Various designs of PCM devices with their respective advantages and integration challenges are presented. The scaling limits of PCM are addressed, and its performance is compared to competing existing and emerging memory technologies. Finally, potential new applications of phase change devices such as neuromorphic computing and phase change logic are outlined.
引用
收藏
页码:703 / 710
页数:8
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