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

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9 Author(s)
Hess, K. ; Beckman Inst. for Adv. Sci. & Technol., Illinois Univ., Urbana, IL, USA ; Jinju Lee ; Zhi Chen ; Lyding, J.W.
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The giant deuterium isotope effect found previously for NMOS hot electron degradation is applied to study defect generation at the Si-SiO 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-SiO2 interfaces

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Electron Devices, IEEE Transactions on  (Volume:46 ,  Issue: 9 )