This paper overviews the physics and promised performance of electron hole bilayer TFETs (EHBTFET) as deep subthermal electronic switch for ultra-low voltage operation. We provide a first complete roadmap for optimizing its design for combined high performance and low leakage. Based on advanced quantum mechanical (QM) simulation methods, it is shown that the major issue with the EHBTFET is the wavefunction (WF) penetration into the underlap region. Various solutions with different varying complexity are proposed and it is shown that steep slope (SS≪60mV/dec) over a few decades of drain current can be attained using these solutions.
Electron-Hole Bilayer Deep Subthermal Electronic Switch: Physics, Promise and Challenges / Adrian M., Ionescu; Cem, Alper; Jose L., Padilla; Livio, Lattanzio; Palestri, Pierpaolo. - (2014), pp. 1-3. (Intervento presentato al convegno 2014 SOI-3D-Subthreshold Microelectronics Technology Unified Conference, S3S 2014 tenutosi a Millbrae, CA, USA nel 6-9 Oct. 2014) [10.1109/S3S.2014.7028227].
Electron-Hole Bilayer Deep Subthermal Electronic Switch: Physics, Promise and Challenges
PALESTRI, Pierpaolo
2014
Abstract
This paper overviews the physics and promised performance of electron hole bilayer TFETs (EHBTFET) as deep subthermal electronic switch for ultra-low voltage operation. We provide a first complete roadmap for optimizing its design for combined high performance and low leakage. Based on advanced quantum mechanical (QM) simulation methods, it is shown that the major issue with the EHBTFET is the wavefunction (WF) penetration into the underlap region. Various solutions with different varying complexity are proposed and it is shown that steep slope (SS≪60mV/dec) over a few decades of drain current can be attained using these solutions.
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