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Journal ArticleDOI

Tunnel field-effect transistors as energy-efficient electronic switches

Adrian M. Ionescu, +1 more
- 17 Nov 2011 - 
- Vol. 479, Iss: 7373, pp 329-337
TLDR
Tunnels based on ultrathin semiconducting films or nanowires could achieve a 100-fold power reduction over complementary metal–oxide–semiconductor transistors, so integrating tunnel FETs with CMOS technology could improve low-power integrated circuits.
Abstract
Power dissipation is a fundamental problem for nanoelectronic circuits. Scaling the supply voltage reduces the energy needed for switching, but the field-effect transistors (FETs) in today's integrated circuits require at least 60 mV of gate voltage to increase the current by one order of magnitude at room temperature. Tunnel FETs avoid this limit by using quantum-mechanical band-to-band tunnelling, rather than thermal injection, to inject charge carriers into the device channel. Tunnel FETs based on ultrathin semiconducting films or nanowires could achieve a 100-fold power reduction over complementary metal-oxide-semiconductor (CMOS) transistors, so integrating tunnel FETs with CMOS technology could improve low-power integrated circuits.

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Citations
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Journal ArticleDOI

Impact of asymmetric dual-k spacers on tunnel field effect transistors

TL;DR: In this paper, an asymmetric dual-k spacers between the gate and p-gate/source was proposed for tunneling FETs, where the spacer length was optimized for better analog and digital performance.
Patent

Inducing localized strain in vertical nanowire transistors

TL;DR: In this paper, the authors propose a device consisting of a semiconductor substrate and a vertical nano-wire over the semiconductor substrategies, which includes a bottom source/drain region, a channel region over the bottom source and drain regions over the channel region, and a top source/drain region over channel region.
Journal ArticleDOI

Improved source design for p-type tunnel field-effect transistors: Towards truly complementary logic

TL;DR: In this article, the authors proposed a source configuration in which a highly doped region is maintained only near the tunnel junction, where the hot carriers in the exponential tail of the Fermi-Dirac distribution are blocked.
Proceedings ArticleDOI

Experimental demonstration of temperature stability of Si-tunnel FET over Si-MOSFET

TL;DR: In this paper, temperature dependences of tunnel field effect transistor (TFET) and MOSFET were experimentally compared on the same SOI wafer, and it was demonstrated that VTH shift and off-current increment of Si-TFET with temperature were smaller in comparison with Si-MOSFCET.
References
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Proceedings Article

Physics of semiconductor devices

S. M. Sze
Journal ArticleDOI

Use of Negative Capacitance to Provide Voltage Amplification for Low Power Nanoscale Devices

TL;DR: By replacing the standard insulator with a ferroelectric insulator of the right thickness it should be possible to implement a step-up voltage transformer that will amplify the gate voltage thus leading to values of S lower than 60 mV/decade and enabling low voltage/low power operation.
Journal ArticleDOI

Low-Voltage Tunnel Transistors for Beyond CMOS Logic

TL;DR: This review introduces and summarizes progress in the development of the tunnel field- effect transistors (TFETs) including its origin, current experimental and theoretical performance relative to the metal-oxide-semiconductor field-effect transistor (MOSFET), basic current-transport theory, design tradeoffs, and fundamental challenges.
Journal ArticleDOI

Double-Gate Tunnel FET With High- $\kappa$ Gate Dielectric

TL;DR: In this article, a double-gate tunnel field effect transistor (DG tunnel FET) with a high-kappa gate dielectric was proposed and validated using realistic design parameters, showing an on-current as high as 0.23 mA for a gate voltage of 1.8 V, an off-current of less than 1 fA (neglecting gate leakage), an improved average sub-threshold swing of 57 mV/dec, and a minimum point slope of 11 mV /dec.
Journal ArticleDOI

A theory of the electrical breakdown of solid dielectrics

TL;DR: In this paper, two distinct mechanisms have been suggested for the sudden increase of the number of electrons in an unfilled band, which occurs when the field strength passes a critical value, analogous to the electrical breakdown of gases.
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