Abstract
The physical and electrical characteristics of atomic layer deposited kappa;RuO2 nanocrystals embedded in high-κ HfO 2/Al2O3 films in an n-Si/SiO 2/HfO2/RuO2/Al2O3/Pt memory structure have been investigated. A small size of <10 nm and high-density of ∼ 1.6*1012/cm2 for the RuO 2 nanocrystals have been observed by high-resolution transmission electron microscope (HRTEM). The RuO2 metal nanocrystals and all high-κ films have been confirmed by x-ray photoelectron spectroscopy (XPS). A large hysteresis memory window of ⇐=Vε 10.8 V at a gate voltage of Vg = ±10 V has been observed for RuO2 nanocrystal memory capacitors. A hysteresis memory window of ⇐=Vε2.4 V has also been observed under a small sweeping gate voltage of Vg = ±5 V, due to charge storage in the RuO2 metal nanocrystals. The RuO2 metal nanocrystal memory capacitors have a large breakdown voltage of -15V. A low charge loss of 15% is observed after 10 years of retention.
| Original language | English |
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| Title of host publication | ICSICT 2008 - 2008 9th International Conference on Solid-State and Integrated-Circuit Technology Proceedings |
| Pages | 951-954 |
| Number of pages | 4 |
| DOIs | |
| State | Published - 2008 |
| Event | 2008 9th International Conference on Solid-State and Integrated-Circuit Technology, ICSICT 2008 - Beijing, China Duration: 20 10 2008 → 23 10 2008 |
Publication series
| Name | International Conference on Solid-State and Integrated Circuits Technology Proceedings, ICSICT |
|---|
Conference
| Conference | 2008 9th International Conference on Solid-State and Integrated-Circuit Technology, ICSICT 2008 |
|---|---|
| Country/Territory | China |
| City | Beijing |
| Period | 20/10/08 → 23/10/08 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
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