Simple model for threshold voltage in a short-channel IGFET

Abstract

The threshold voltage of a short-channel IGFET can be expressed, in relation to that for a long-channel device, as <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">V_{T} = V_{TLC} - \alpha - \betaV_{DS}</tex> . This behavior is deduced from a charge injection model and is verified both by two-dimensional numerical simulations and by actual threshold data.