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Generic Carrier-Based Core Model for Undoped Four-Terminal Double-Gate MOSFETs Valid for Symmetric, Asymmetric, and Independent-Gate-Operation Modes

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8 Author(s)
Feng Liu ; Peking Univ., Beijing ; Jin He ; Yue Fu ; Jinhua Hu
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A generic carrier-based core model for undoped four-terminal double-gate (DG) MOSFETs has been developed and is presented in this paper. The model is valid for symmetric, asymmetric, and independent-gate-operation modes. Based on the exact solution of the 1-D Poisson's equation in a general DG MOSFET configuration, a rigorous derivation of the drain-current equations from the Pao-Sah's double integral has been performed. By using the channel carriers as the intermediate variable, a very compact analytical drain-current expression can be obtained. The model is extensively verified by comparisons with a 2-D numerical simulator under a large number of biasing conditions. The concise mathematical formulation allows the unification of various DG models into a carrier-based core model for a compact DG MOSFET model development.

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Electron Devices, IEEE Transactions on  (Volume:55 ,  Issue: 3 )