Author:
Lü Yi ,Zhang He-Ming ,Hu Hui-Yong ,Yang Jin-Yong , ,
Abstract
Hot carrier gate current is one of the factors that influence the power and reliability of metal-oxide-semiconductor field effect transistor (MOSFET). Based on the physical process of generation of the hot carrier effect, a model of hot carrier gate current for uniaxially strained Si NMOSFET is developed. With that model, the simulation results of hot carrier gate current against stress intensity, gate-source bias, channel doping concentration, and drain-source bias are obtained and analyzed. The relationship between life time of time-dependent dielectric break down (TDDB) and gate-source bias is simulated and analyzed. Results show that the uniaxially strained Si MOSFET not only has smaller hot carrier gate current, but also has more stable reliability as compared with the strainless bulk device. Meanwhile, the simulation results match the experimental results very well, which validates the accuracy of the model.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
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