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Silicon nanowire FET (SiNWFET) with dynamic polarity control has been experimentally demonstrated and has shown large potential in circuit applications. To fully explore its circuit-level opportunities, a physics-based compact model of the polarity-controllable SiNWFET is required. Therefore, in this paper, we extend the solution for conventional SiNWFETs to polarity-controllable SiNWFETs. By solving...
The VDMOS physical modeling method is studied, and then a VDMOS physical model is proposed for IC CAD. In this model, for the region whose cross-section area of electron flow is variable, a differential equation for the vertical electric field, which considers the high electric field's strong influence on the electron mobility, is established. Moreover, when the nonuniform electron concentration distribution...
In this paper a potential based model for monocrystalline silicon thin film transistor (TFT) systems on glass (SOG) substrate from the accumulation to the strong-inversion region is developed. By solving the complete dimensional (1D) Poisson's equation, the potential distribution in the channel is obtained. The analytic drain current is expressed accurately base on the potential solution. Compared...
This paper presents a new and more accurate potential based model for bulk MOSFET compared to the traditional charge-sheet surface potential model. The channel potential of the bulk MOSFET is obtained by solving Poisson equation and an accurate current expression is obtained base on it. Taking Pao-Sah model as a standard, the relative errors of the charge-sheet model may be as large as 4% in the saturation...
In this paper an analytic model for Ge/Si core/shell nanowire MOSFETs (NWFETs) is developed. First, the electrostatic potential and charge model are derived out from classical device physics. Then the drift-diffusion drain current model is obtained and verified by comparisons with the numerical simulation. The ballistic current model is obtained with the approximately described quantum-mechanical...
An analytic surface potential based non-charge-sheet model for poly-silicon thin film transistors (poly-Si TFTs) is proposed in this paper with consideration of the substrate and film thickness effects. The 1-D Poissonpsilas equation with dopant, mobile, and the trap charge terms is first solved to obtain accurate yet continuous channel potentials physically. An analytic non-charge-sheet drain current...
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