Abstract:An analytical drain current model on the basis of the surface potential is proposed for indium–gallium zinc oxide (InGaZnO) thin-film transistors (TFTs) with an independent dual-gate (IDG) structure. For a unified expression of carriers’ distribution for the sub-threshold region and the conduction region, the concept of equivalent flat-band voltage and the Lambert W function are introduced to solve the Poisson equation, and to derive the potential distribution of the active layer. In addition, the regional int… Show more
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