Publication

Analysis of Dielectric Microbead Detection by Impedance Spectroscopy with Nanoribbons

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1T Capacitor-less DRAM cell based on asymmetric Tunnel FET design

Mihai Adrian Ionescu, Arnab Biswas

In this work we propose and demonstrate the use of a Tunnel FET (TFET) as capacitorless DRAM cell based on TCAD simulations and experiments. We report more experimental results on Tunnel FETs implemented as a double-gate (DG) fully-depleted Silicon-On-Insu ...

2014

Fabrication and Optoelectronic Properties of Graphene Nanoribbons

Eberhard Ulrich Stützel

Graphene, a single layer of carbon atoms, exhibits excellent charge transport properties. However, due to the absence of a band gap in this two-dimensional carbon nanostructure, graphene-based field effect transistors cannot be turned off. One strategy to ...

EPFL2013

Multi-gate Si nanowire MOSFETs

Mohammad Najmzadeh

Multi-gate devices e.g. gate-all-around (GAA) Si nanowires and FinFETs are promising can- didates for aggressive CMOS downscaling. Optimum subthreshold slope, immunity against short channel effect and optimized power consumption are the major benefits of s ...

EPFL2012

From All-Si Nanowire TFETs Towards III-V TFETs

Hesham Ghoneim

Performance improvement by device scaling has been the prevailing method in the semiconductor industry over the past four decades. However, current silicon transistor technology is approaching a fundamental limit where scaling does not improve device perfo ...

EPFL2012

Beyond Scaling

Luca De Michielis

Over the recent decades, the balance between increasing the complexity of computer chips and simultaneously reducing cost per bit has been accommodated by down-scaling. While extremely successful in the past, this approach now faces grave limitations leadi ...

EPFL2012

Vertically stacked Si nanostructures for biosensing applications

Mihai Adrian Ionescu, Montserrat Fernandez-Bolanos Badia, Elizabeth Buitrago Godinez

High density (7-10 NW/μm) SiNW arrays of up to 16 nanowires vertically stacked with diameter widths below 20 nm have been successfully fabricated to create highly sensitive 3D FETs for biosensing applications. In order to take advantage of the increased se ...

Elsevier2012

Self-Assembled Liquid-Gated Zinc Oxide Nanowire Transistors

Vivek Pachauri

This thesis aims at the site-specific realization of self-assembled field-effect transistors (FETs) based on semiconducting Zinc oxide NWs and their application towards chemical and bio-sensing in liquid medium. At first, a solution based growth method for ...

EPFL2011

In-IC Strategies for 3D Devices in Bulk Silicon

Matthieu Bopp

The increase of components density in advanced microelectronics is practically dictated by the device size and the achievable pitch between the devices. Scaling down dimensions of devices and progress in the circuit design allowed following Moore's law dur ...

EPFL2011

Graphene-based Field-effect Transistors

Adarsh Singh Sagar

With transistors set to reach their smallest possible size in the next decade, the silicon chip is likely to change dramatically, or be replaced entirely. The transistor industry's path which has been largely shaped by Gordon Moore's famous prediction that ...

EPFL2011

Electrical properties of functionalized nanowire field effect transistors

Ralf Thomas Weitz

The utilization of functional organic materials holds great promise for applications in electronic devices. Semiconducting organic molecules are frequently used as channel material in field effect transistors, due to the ease by which they can be assembled ...

EPFL2008