Drift-diffusion-based modeling of the non-quasistatic small-signal response for RF-MOSFET applications

H. Ueno1, S. Jinbou1, H. Kawano1, K. Morikawa2,3, N. Nakayama1, A. Miura-Mattausch1, H.J. Mattausch2,3
1Graduate School of Advanced Sciences of Matter, Hiroshima University, Higashi-Hiroshima, Japan
2Graduate School of Advanced Sciences of Matter, Hiroshima University, Higashihiroshima, Japan
3Research Center for Nanodevices and Systems, Higashi-Hiroshima, Japan

Tóm tắt

A non-quasistatic MOSFET model for the small-signal response is developed by including the continuity equation in an analytical way. This model developed based on the drift-diffusion approximation enables us to predict the high-frequency response for any bias conditions. Our result shows that the quasistatic approximation calculates the response approximately correct up to f/sub T//2, which is much higher than the f/sub T//10 previously estimated.

Từ khóa

#Circuit simulation #Equivalent circuits #Poisson equations #MOSFET circuits #Intrusion detection #Threshold voltage #Predictive models #Cutoff frequency #Current density #Capacitance

Tài liệu tham khảo

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