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Notes on Fermi-Dirac Integrals (3rd Edition)

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23 Sep 2008 | Papers | Contributor(s): raseong kim, Mark Lundstrom

Fermi-Dirac integrals appear frequently in semiconductor problems, so an understanding of their properties is essential. The purpose of these notes is to collect in one place, some basic information about Fermi-Dirac integrals and their properties. We also present Matlab functions (in a zipped...

Notes on the Ballistic MOSFET

08 Oct 2005 | Papers | Contributor(s): Mark Lundstrom

When analyzing semiconductor devices, the traditional approach is to assume that carriers scatter frequently from ionized impurities, phonons, surface roughness, etc. so that the average distance between scattering events (the so-called mean-free-path, λ) is much shorter than the device. When...

Theory of Ballistic Nanotransistors

27 Nov 2002 | Papers | Contributor(s): Anisur Rahman, Jing Guo, Supriyo Datta, Mark Lundstrom

Numerical simulations are used to guide the development of a simple analytical theory for ballistic field-effect transistors. When two-dimensional electrostatic effects are small, (and when the insulator capacitance is much less than the semiconductor (quantum) capacitance), the model reduces to...

nanoMOS 2.0: A Two -Dimensional Simulator for Quantum Transport in Double-Gate MOSFETs

06 Oct 2006 | Papers | Contributor(s): Zhibin Ren, Ramesh Venugopal, Sebastien Goasguen, Supriyo Datta, Mark Lundstrom

A program to numerically simulate quantum transport in double gate MOSFETs is described. The program uses a Green’s function approach and a simple treatment of scattering based on the idea of so-called Büttiker probes. The double gate device geometry permits an efficient mode space approach that...

Towards Multi-Scale Modeling of Carbon Nanotube Transistors

20 Sep 2006 | Papers | Contributor(s): Jing Guo, Supriyo Datta, Mark Lundstrom, M. P. Anantram

Multiscale simulation approaches are needed in order to address scientific and technological questions in the rapidly developing field of carbon nanotube electronics. In this paper, we describe an effort underway to develop a comprehensive capability for multiscale simulation of carbon nanotube...

Simulating Quantum Transport in Nanoscale Transistors: Real versus Mode-Space Approaches

28 Sep 2006 | Papers | Contributor(s): Zhibin Ren, Supriyo Datta, Mark Lundstrom, Ramesh Venugopal, D. Jovanovic

In this paper, we present a computationally efficient, two-dimensional quantum mechanical sim- ulation scheme for modeling electron transport in thin body, fully depleted, n-channel, silicon- on-insulator transistors in the ballistic limit. The proposed simulation scheme, which solves the...

Modeling of Nanoscale Devices

19 Oct 2006 | Papers | Contributor(s): M. P. Anantram, Mark Lundstrom, Dmitri Nikonov

We aim to provide engineers with an introductionto the nonequilibriumGreen’s function (NEGF) approach, which is a powerful conceptual tool and a practical analysismethod to treat nanoscale electronic devices with quantum mechanicaland atomistic effects. We first review the basis for the...

A Three-Dimensional Quantum Simulation of Silicon Nanowire Transistors with the Effective-Mass Approximation

30 Oct 2006 | Papers | Contributor(s): , POLIZZI ERIC, Mark Lundstrom

The silicon nanowire transistor (SNWT) is a promising device structure for future integrated circuits, and simulations will be important for understanding its device physics and assessing its ultimate performance limits. In this work, we present a three-dimensional quantum mechanical simulation...

Electronics from the "Bottom Up": An Intel-NCN@Purdue initiative in nanoelectronics education

05 Jul 2007 | Papers | Contributor(s): Mark Lundstrom, Supriyo Datta, Muhammad A. Alam

In the 1960’s, a group of leaders from industry and academia, the Semiconductor Electronics Education Committee (SEEC), recognized that the age of vacuum tubes was ending, and that engineers would have to be educated differently if they were to realize the opportunities that the new field of...

A Quantum Mechanical Analysis of Channel Access Geometry and Series Resistance in Nanoscale Transistors

19 Oct 2006 | Papers | Contributor(s): Ramesh Venugopal, Sebastien Goasguen, Supriyo Datta, Mark Lundstrom

In this paper, we apply a two-dimensional quantum mechanical simulation scheme to study the effect of channel access geometries on device performance. This simulation scheme solves the non-equilibrium Green’s function equations self-consistently with Poisson’s equation and treats the effect of...