Analysis of Velocity Saturation and Other Effects on Short-Channel MOS Transistor Capacitances

Hiroshi Iwai, M.R. Pinto, C.S. Rafferty, J.E. Oristian, R.W. Dutton

IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems · 1987 · 22 citations · 21 references

Concepts

Abstract

In order to analyze short-channel effects of MOS transistor ac characteristics, a two-dimensional device simulator has been used to extract MOS transistor capacitances. The results of simulation and measurements agree well. The causes of short-channel effects have been understood and explained by the simulations. Two-dimensional effects and velocity saturation are the main causes of short-channel effects in MOS transistor capacitances. Two-dimensional simulation was found to be a useful tool for studying mobility models, as well as for obtaining capacitance models for circuit simulation.

References

21