Implicit Analytical Surface/Interface Potential Solutions for Modeling Strained-Si MOSFETs

A new technique for calculating surface and interface potentials in heterostructure MOSFETs such as strained-Si/SiGe using an internal iteration approach is presented. It is based on the unified regional approach with coupled iterative potential solutions at the surface and heterostructure interface...

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Veröffentlicht in:IEEE transactions on electron devices 2006-12, Vol.53 (12), p.3110-3117
Hauptverfasser: Chandrasekaran, K., Xing Zhou, Siau Ben Chiah, Guan Huei See, Rustagi, S.C.
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container_end_page 3117
container_issue 12
container_start_page 3110
container_title IEEE transactions on electron devices
container_volume 53
creator Chandrasekaran, K.
Xing Zhou
Siau Ben Chiah
Guan Huei See
Rustagi, S.C.
description A new technique for calculating surface and interface potentials in heterostructure MOSFETs such as strained-Si/SiGe using an internal iteration approach is presented. It is based on the unified regional approach with coupled iterative potential solutions at the surface and heterostructure interface, and it has been applied to modeling strained-Si/SiGe MOSFETs charge and capacitance in all bias regions, scalable for Ge mole fraction, strained-Si and SiGe layer thicknesses and doping. The formulations are shown for a buried-channel nMOSFET, and the approach to the solutions is generic to all heterostructures, which exhibit confinement of carriers at the different interfaces
doi_str_mv 10.1109/TED.2006.885520
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source IEEE Electronic Library (IEL)
subjects Applied sciences
Compact model
Compound structure devices
Electronics
Exact sciences and technology
heterostructure MOSFET
Poisson solution
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
SiGe
strained silicon (s-Si)
surface potential
Transistors
title Implicit Analytical Surface/Interface Potential Solutions for Modeling Strained-Si MOSFETs
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