Phase change materials for multi-level storage phase change memory

Kun Ren; Feng Rao; Zhitang Song; Min Zhu; Yuefeng Gong; Liangcai Wu; Bo Liu; Songlin Feng

doi:10.1117/12.2016744

24 January 2013 Phase change materials for multi-level storage phase change memory

Kun Ren, Feng Rao, Zhitang Song, Min Zhu, Yuefeng Gong, Liangcai Wu, Bo Liu, Songlin Feng

Proceedings Volume 8782, 2012 International Workshop on Information Storage and Ninth International Symposium on Optical Storage; 87820I (2013) https://doi.org/10.1117/12.2016744
Event: 2012 International Workshop on Information Data Storage and Ninth International Symposium on Optical Storage, 2012, Shanghai, China

Abstract

^{A phase change memory cell based on Ge_0.5Sb₂Te₃/Ti_0.6Sb₂Te₃ double-layer structure is proposed for 3-level storage. The fabricated cell can realize 3-level storage ability by both current and voltage operation. Cycling ability has been proved better than 2×103. Thermal simulation shows that the resistivity difference between the two materials can greatly affect the temperature distribution in the cell. More heat will be generated in the amorphous Ge Ge_0.5Sb₂Te₃/ film when the current flow through due to the higher resistivity. And the lower crystallization temperature of Ge_0.5Sb₂Te₃/compared to that of Ti0.6Sb2Te3 ensures its priority of crystallization, which makes the 3-level storage feasible.}

Citation Download Citation

Kun Ren, Feng Rao, Zhitang Song, Min Zhu, Yuefeng Gong, Liangcai Wu, Bo Liu, and Songlin Feng "Phase change materials for multi-level storage phase change memory", Proc. SPIE 8782, 2012 International Workshop on Information Storage and Ninth International Symposium on Optical Storage, 87820I (24 January 2013); https://doi.org/10.1117/12.2016744

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available