Self-Aligned n-Channel Germanium MOSFETs With a Thin Ge Oxynitride Gate Dielectric and Tungsten Gate

Huiling Shang, K.-L. Lee, P. Kozlowski, C. D’Emic, I. Babich, E. Sikorski, M. Ieong, H.‐S. Philip Wong, K.W. Guarini, Wilfried Haensch

IEEE Electron Device Letters · 2004 · 171 citations · 4 references

Concepts

Abstract

In this letter, we report self-aligned n-channel germanium (Ge) MOSFETs with a thin Ge oxynitride gate dielectric and tungsten gate electrode. Excellent off-state current is achieved through the reduction of junction leakage. For the first time, we have demonstrated an n-channel Ge MOSFET with a subthreshold slope of 150 mV/dec and an on-off current ratio of /spl sim/10/sup 4/.

References

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