An alternative interpretation of hot electron interface degradation in NMOSFETs: isotope results irreconcilable with major defect generation by holes?

The giant deuterium isotope effect found previously for NMOS hot electron degradation is applied to study defect generation at the Si-SiO/sub 2/ interface. The data suggest that interface defects related to hydrogen depassivation may be generated directly by channel hot electrons bombarding the inte...

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Bibliographic Details
Published inIEEE transactions on electron devices Vol. 46; no. 9; pp. 1914 - 1916
Main Authors Hess, K., Jinju Lee, Zhi Chen, Lyding, J.W., Young-Kwang Kim, Bong-Seok Kim, Yong-Hee Lee, Young-Wug Kim, Kwang-Pyuk Suh
Format Journal Article
LanguageEnglish
Published IEEE 01.09.1999
Subjects
Channels
Defects
Degradation
Deuterium
Education
Hot carriers
Hot electrons
Oxides
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Summary:The giant deuterium isotope effect found previously for NMOS hot electron degradation is applied to study defect generation at the Si-SiO/sub 2/ interface. The data suggest that interface defects related to hydrogen depassivation may be generated directly by channel hot electrons bombarding the interface without the necessity of injection into the oxide. This is in contrast to the standard teaching that energetic holes, created by impact ionization, and injected into the oxide are the main cause for hydrogen-related defect generation at the Si-SiO/sub 2/ interfaces.
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ISSN:0018-9383
1557-9646
DOI:10.1109/16.784195