| Autor: |
Sang-Bae Yi, Byung-Cheul Kim, Sang-eun Lee, Kwang-Yell Seo, Sam-Kyung Kuk |
| Rok vydání: |
2002 |
| Předmět: |
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| Zdroj: |
Proceedings of 5th International Conference on Properties and Applications of Dielectric Materials. |
| DOI: |
10.1109/icpadm.1997.616595 |
| Popis: |
TSC (thermally stimulated current) technique has been applied to investigate the characteristics of MONOS (metal-oxide-nitride-oxide-semiconductor) structures with superthin nitride film of 46 /spl Aring/ thick for the low voltage NVSM. A new discharging model bans been developed and formulated for analysis of TSC curves due to memory traps such as the blocking oxide-nitride interface trap and the nitride bulk trap. By best fitting method, the blocking oxide-nitride interface traps are found to be energetically distributed in the range of 1.17/spl sim/1.18 eV below the top of the nitride conduction band with a density of N/sub ON/=2.3/spl times/10/sup 15/ cm/sup -2/ eV/sup -1/. The discharging mechanism can be explained that the holes trapped in the blocking oxide-nitride interface traps, distributed uniformly in energy, are first thermally excited into the nitride valence band, then drifted to the nitride-tunneling oxide interface, and finally tunneled into the Si valence band to contribute to TSC. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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