【摘 要】
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The impact of negative bias temperature instability (NBTI) can be ascribed to three mutually uncorrelated factors,including hole trapping by pre-existing traps
【机 构】
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Shanghai Key Laboratory of Multidimensional Information Processing and Department of Electrical Engi
论文部分内容阅读
The impact of negative bias temperature instability (NBTI) can be ascribed to three mutually uncorrelated factors,including hole trapping by pre-existing traps (AVHT) in gate insulator,generated traps (ΔVOT) in bulk insulator,and interface trap generation (AVrr).In this paper,we have experimentally investigated the NBTI characteristic for a 40-nm complementary metal-oxide semiconductor (CMOS) process.The power-law time dependence,temperature activation,and field acceleration have also been explored based on the physical reaction-diffusion model.Moreover,the end-of-life of stressed device dependent on the variation of stress field and temperature have been evaluated.With the consideration of locking effect,the recovery characteristics have been modelled and discussed.
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