Strained Si and Ge MOSFETs with high-K/metal gate stack for high mobility dual channel CMOS - Archive ouverte HAL
Communication Dans Un Congrès Année : 2005

Strained Si and Ge MOSFETs with high-K/metal gate stack for high mobility dual channel CMOS

Résumé

Epitaxial strained Si and Ge n- and p-MOSFETs with a TiN/HfO2 gate stack were fabricated with the same process for a dual channel integration scheme. Compared to the HfO2/Si reference, X1.7 strained Si electron and X9 strained Ge hole mobility gains are demonstrated, achieving symmetric n- and p-MOSFET IDsat performance. This X9 strained Ge hole mobility enhancement highly exceeds previous reported results on Ge pMOSFETs with high-k dielectrics. For the first time, such a hole mobility enhancement, theoretically predicted and experimentally reported with thick SiO2 gate dielectrics, is demonstrated with a thin high-k gate dielectric (EOT=14Aring)
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Dates et versions

hal-01736083 , version 1 (16-03-2018)

Identifiants

Citer

O. Weber, Y. Bogumilowicz, T. Ernst, J.-M. Hartmann, F. Ducroquet, et al.. Strained Si and Ge MOSFETs with high-K/metal gate stack for high mobility dual channel CMOS. IEEE International Electron Devices Meeting, 2005, Dec 2005, Washington, United States. pp.137-140, ⟨10.1109/IEDM.2005.1609288⟩. ⟨hal-01736083⟩
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