Papers – Page 20 – TechConnect Briefs

Electron Vorticity – Internal Energy Formulation of the Hydrodynamic Model of Electron Transport

Mohseni K., Shakouri A., University of Colorado, US

The hydrodynamic model of electron transport is revisited. By rearranging the governing equations a new set of equations in terms of the electron vorticity and internal energy is derived. The advantage of the new set [...]

Principles of Electron Wave Computing using Quantum Resistor Networks

Wu C.H., University of Missouri-Rolla, US

Quantum resistor networks are interconnected thin wires or electron conducting wave guides. A multiple input-output quantum network is capable of performing massive parallel computing, similar to optical computing. Basic logic functions and arithmetic computation have [...]

Modelling Coupled Motion of Electrons in Quantum Dots with Wetting Layers

Melnik R.V.N., Willatzen M., University of Southern Denmark, DK

The influence of wettin-layer states on quantum-dot states and vice-versa is examined numerically employing a one-band model for electroncs in the conduction band. This problem corresponds to the case where a few monolayer InAs grown [...]

Modeling and Simulation of Single-Electron Multi Tunnel Junction Memory

Le Carval G., Le Royer C., Le Carval G., Le Royer C., Sanquer M., Fraboulet D., CEA-LET, FR

For optimization of Quantum-Dot-based Multi Tunnel Junction Memory (MTJM) [1], we propose an original compact model validated by physical simulations. We analyze the impact of physical and technological parameters (Temperature, dots density, geometries…) on writing [...]

Electronic Structure of Quantum Dots

Hines C., McCarthy S.A., Wang J.B., Abbott P.C., The University of Western Australia, AU

This paper presents a detailed calculation of the electronic structure of quantum dots with various geometries. In particular, non-circular quantum dots are examined and their characteristic properties analysed. In addition, the importance of electron-electron spin [...]

Predictive Process Simulation and Ab-initio Calculation of the Physical Volume of Electrons in Silicon

Windl W., Daw M.S., Ohio State University, US

Recently, we have presented the development of a complete predictive simulation capability for the effects of general anisotropic nonuniform stress on dopant diffusion in silicon [M. Laudon, N. N. Carlson, M. P. Masquelier, M. S. [...]

The Use of Quantum Potentials for Confinement in Semiconductor Devices

Asenov A., Brown A.R., Watling J.R., Glasgow University, UK

As MOSFETs are scaled into sub 100 nm (decanano) dimensions, quantum mechanical confinement and tunnelling start to dramatically affect their characteristics. In this paper we describe the introduction of quantum corrections within a 3D drift [...]

The Landauer Approach to the Critical Source-Channel Barrier in MOSFETs

Lundstrom M., Rhew J-H., Purdue University, US

A simple treatment of the nano-scale MOSFET in the spirit of the Landauer approach to transport in mesoscopic structures is described. First, the essential physics is illustrated by examining numerical simulations. Next, the analytical theory [...]

Self-consistent Modeling of Open Quantum Devices

Akis R., Shifren L., Ferry D.K., Arizona State University, US

In this paper, we describe a method of simulating electron transport in semiconductor devices that operate in the quantum regime. Specifically, devices formed in which the electrons are confined to two dimensions (2D) and transport [...]

The Use of a Green’s Function Formalism for the Simulation of Semiconductor Device Performance

Jovanovic D., Motorola, US

Non-equilibrium quantum transport simulation techniques (e.g. the generalized Kadanoff-Baym approach) have been in existence for over 40 years but have only recently become numerically viable for the simulation of semiconductor devices. This paper reports on [...]