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Oxide traps for stressed MOSFET' s have been extensively investigated in the pastdecades,and the trap generation mechanism was presented[1— 4] .When oxide film isthinner than approximately 7nm,some new phenomena,such as SILC and soft... 相似文献
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Proportional Difference Operator (PDO) method is proposed for the first time to determine the key parameters of a MOSFET, including the threshold voltage and carrier mobility.This methoc is applied to the transfer characteristic of a MOSFET first, and then the effect of gate voltage on carrier mobility is considered. The dependence of carrier mobility on the gate voltage is obtained. 相似文献
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n-SiOxNy是硅上热生长的超薄绝缘SiOxNy薄膜在电、热应力作用下形成的一种具有双施主型掺杂的宽带隙(Eg=9eV)n-型半导体材料.随着施加电应力时的环境温度的增加,n-SiOxNy的形成效率显著增加.其形成时间的对数lnt随着应力电压、应力环境温度的增加而减小并呈近似的线性关系.n-SiOxNy中的双施主能级是一种施主型的双缺陷能级,当电应力引导的施主缺陷密度达到1.26×1020cm-3时,SiOxNy,绝缘薄膜呈现n型半导体导电特性.在n-Si或p-Si衬底上形成的硅基异质结n-SiOxNy/n-Si或n-SiOxNy/p-Si二极管的I-V特性具有饱和性质,在电压大于1V的电压区,I-V特性可以用1eV势垒的FN隧道机制来描述.当衬底Si的掺杂增加时,势垒高度下降. 相似文献
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