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Germanium p-MOSFETs with a thin high-k dielectric (EOT/spl sim/1.6 nm) were fabricated on bulk Ge and epitaxial germanium-on-silicon substrates. These devices exhibited sub-90 mV/decade subthreshold swing and low gate leakage. The IV and CV characteristics achieved in this work allow for accurate extraction of important device parameters such as transconductance (Gm) and low-field mobility. Results from n-MOSFETs fabricated on bulk Ge substrates are also presented.
Date of Conference: 8-10 Dec. 2003