Nano Science and Technology Institute
Nanotech 2012 Vol. 2
Nanotech 2012 Vol. 2
Nanotechnology 2012: Electronics, Devices, Fabrication, MEMS, Fluidics and Computational (Volume 2)
Chapter 10: Compact Modeling

Compact Model for Intrinsic Capacitances in AlGaN/GaN HEMT Devices

Authors:S. Khandelwal, T.A. Fjeldly
Affilation:NTNU, NO
Pages:744 - 747
Keywords:AlGaN/GaN HEMT, compact modeling
Abstract:We present a physics-based analytical compact model for intrinsic gate-source and gate-drain capacitances (CGS and CGD) in AlGaN/GaN HEMT these devices. The gate-channel capacitance Cch is derived from the unified 2-DEG charge density model developed previously by our group. We combine Cch model with Meyer capacitance model and develop analytical expressions for CGS and CGD which are valid in all regions of device operation. The proposed model is in excellent agreement with the experimental data.
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