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Journal ArticleDOI

Simulation-Based Study of Si/Si 0.9 Ge 0.1 /Si Hetero-Channel FinFET for Enhanced Performance in Low-Power Applications

TLDR
In this paper, the performance of a p-channel FinFET comprising a heterogeneous silicon (Si) and silicon-germanium (Si0.9Ge0.1) channel region is evaluated using three-dimensional TCAD simulations and benchmarked against a conventional p-Channel Si Fin-FET.
Abstract
The performance of a p-channel FinFET comprising a heterogeneous silicon (Si) and silicon-germanium (Si0.9Ge0.1) channel region is evaluated using three-dimensional TCAD simulations and benchmarked against a conventional p-channel Si FinFET. The results show that the hetero-channel design provides for larger ON-state current while maintaining comparable electrostatic integrity as the conventional design due to the valence band offset between Si0.9Ge0.1 and Si. The enhanced performance is achieved with a relatively low Ge mole fraction (10%) in the channel region for ease of manufacture. Therefore, the hetero-channel FinFET is promising for future low-power applications.

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References
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Journal ArticleDOI

Band structure, deformation potentials, and carrier mobility in strained Si, Ge, and SiGe alloys

TL;DR: In this article, the authors compute the band structure and shear deformation potentials of strained Si, Ge, and SiGe alloys, and fit the theoretical results to experimental data on the phonon-limited carrier mobilities in bulk Si and Ge.
Journal ArticleDOI

Germanium p-Channel FinFET Fabricated by Aspect Ratio Trapping

TL;DR: In this article, scaled Ge p-channel FinFETs fabricated on a 300mm Si wafer using the aspect-ratio-trapping technique were reported. But, the performance of the Ge pFET was limited by the fact that the trap-assisted tunneling and a band-to-band tunneling leakage mechanism is responsible for an elevated bulk current limiting the OFF-state drain current.
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