First-principles study on barrier height of silicon emission from interface into oxide during silicon thermal oxidation
Hiroyuki Kageshima,
Toru Akiyama,
Kenji Shiraishi
Abstract:Employing the first-principles calculation, the detailed energy landscape of the path for the Si emission from the interface into the oxide is studied. It is found that the barrier height almost reproduces the experimental values, which indicates that the Si emission surely corresponds to the diffusion of SiO interstitial. It is also found that the barrier height is microscopically rate-limited by the oxygen-vacancy transfer process, which temporarily and inevitably proceeds under a large local tensile strain … Show more
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