We evaluate the influence of the thermally assisted tunneling （TAT） mechanism on charge trapping memory （CTM） cell performance by numerical simulation, and comprehensively analyse the effects of the temperature, t...We evaluate the influence of the thermally assisted tunneling （TAT） mechanism on charge trapping memory （CTM） cell performance by numerical simulation, and comprehensively analyse the effects of the temperature, trap depth, distribution of trapped charge, gate voltage and parameters of TAT on erasing/programming speed and retention performance. TAT is an indispensable mechanism in CTM that can increase the detrapping probability of trapped charge. Our results reveal that the TAT effect causes the sensitivity of cell performance to temperature and it could affect the operational speed, especially for the erasing operation. The results show that the retention performance degrades compared with when the TAT mechanism is ignored.展开更多
基金Project supported by the National Basic Research Program of China (Grant No. 2010CB934203)
文摘We evaluate the influence of the thermally assisted tunneling （TAT） mechanism on charge trapping memory （CTM） cell performance by numerical simulation, and comprehensively analyse the effects of the temperature, trap depth, distribution of trapped charge, gate voltage and parameters of TAT on erasing/programming speed and retention performance. TAT is an indispensable mechanism in CTM that can increase the detrapping probability of trapped charge. Our results reveal that the TAT effect causes the sensitivity of cell performance to temperature and it could affect the operational speed, especially for the erasing operation. The results show that the retention performance degrades compared with when the TAT mechanism is ignored.
