Communication-Hourglass-Shaped Metal-Filament Switching Device with Multi-Layer (AlOX/TiO2) Oxide Electrolytes
SCIE
SCOPUS
- Title
- Communication-Hourglass-Shaped Metal-Filament Switching Device with Multi-Layer (AlOX/TiO2) Oxide Electrolytes
- Authors
- Lim, S; Woo, J; Lee, S; Park, J; Hwang, H
- Date Issued
- 2016-07
- Publisher
- ELECTROCHEMICAL SOC INC
- Abstract
- This paper proposes using hourglass-shaped metal filaments to improve the ON/OFF resistance ratio and retention characteristics of switching devices used in reconfigurable logic applications. These filaments are obtained by controlling the Cu-ion mobility in multi-layer oxide electrolytes. By adopting an upper AlOX and lower TiO2 electrolyte layers with respectively low and high Cu-ion mobility, we could form hourglass-shaped filaments as a result of suppressed Cu-ion injection and enhanced filament lateral growth. The hourglass-shaped metal filaments induced local Joule heating at the filament constriction, thus accelerating RESET operations. We confirmed that, as a result, Cu/AlOX/TiO2/W devices show high ON/OFF resistance ratios (>10(6)) and similar to 10-year retention properties at 80 degrees C. (C) The Author(s) 2016. Published by ECS. All rights reserved.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/37717
- DOI
- 10.1149/2.0031609jss
- ISSN
- 2162-8769
- Article Type
- Article
- Citation
- ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY, vol. 5, no. 9, page. Q219 - Q221, 2016-07
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