Simple analytical model for short-channel MOS devices

A simple analytical model derived from a quasi-two-dimensional analysis with a non-vanishing E-field derivative at the pinchoff point and a continuous output conductance at the transition point for short-channel MOSFETs is presented. This model also covers mobility reduction, carrier velocity saturation, body, channel-length modulation, source-drain series resistance and short-channel effects for an accurate determination of the pinchoff point location without internal numerical iterations as compared to other models. This model can be used to describe the channel-length modulation effects more accurately in circuit simulation with short-channel MOSFETs.