Abstract
The materials properties and resistance switching characteristics of hafnium oxide-based binary oxide were investigated for next generation memory device application. A nonstoichometric hafnium oxide (HfOx) film with a mixture structure of monoclinic and tetragonal phase and some metallic Hf-Hf bonds on TiN/Si were prepared by atomic layer chemical vapor deposition (ALCVD). Resistance random access memory devices consisting of Pt/HfOx/TiN/Si with low power operation (< 0.4 mW) and reset current (< 100 μA) were fabricated. The resistance ratio of high resistance state to low resistance state maintains 100-1000 and after 1000 cycles of repetitively switching. A 1-nm-thick Al2O3 film in the interface between top electrode and HfOx films, the Pt/Al2O3/HfO x/TiN/Si memory devices were found that soft-error of set and reset process often occurred. Interface states in the anode side may play an important role in maintaining a stable resistive switching for HfOx-based memory devices.
| Original language | English |
|---|---|
| Title of host publication | 2007 MRS Spring Meeting |
| Publisher | Materials Research Society |
| Pages | 191-197 |
| Number of pages | 7 |
| ISBN (Print) | 9781558999572 |
| DOIs | |
| State | Published - 2007 |
| Event | 2007 MRS Spring Meeting - San Francisco, CA, United States Duration: 10 04 2007 → 13 04 2007 |
Publication series
| Name | Materials Research Society Symposium Proceedings |
|---|---|
| Volume | 997 |
| ISSN (Print) | 0272-9172 |
Conference
| Conference | 2007 MRS Spring Meeting |
|---|---|
| Country/Territory | United States |
| City | San Francisco, CA |
| Period | 10/04/07 → 13/04/07 |
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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