Abstract
A drain current model for a short-channel MOSFET, which is named the nonpinchoff model, is proposed. In this model, the effect of the horizontal electric field is precisely taken into account to solve the two-dimensional Poisson's equation. The pinchoff point, where the horizontal electric field tends to infinity in the conventional gradual-channel approximation, disappears in the nonpinchoff model, so that linear and saturation regions are smoothly connected. As a result, the ambiguity of the boundary between the linear region and saturation region in a short channel MOSFET can be understood using a single equation for the drain current.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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