Papers – Page 1011 – TechConnect Briefs

A New Compact Model of Floating Gate Non-Volatile Memory Cells

Larcher L., Pavan P., Gattel F., Albani L., Marmiroli A., Università di Modena e Reggio Emilia, IT

This paper presents a new compact model of Floating Gate Non-Volatile Memory Cells using SPICE circuit elements. It features many advantages compared to previous models: it is simple and easy to implement and to update, [...]

Compact Modeling and Circuit Impact of a Novel Frequency Dependence of Capacitance in RF MOSFETs

Sudhama C., Joardar K., Whitfield J., Zlotnicka A., Motorola SPS, US

The exploration and modeling of high-frequency MOSFET phenomena are vitally important because MOSFETs are emerging as candidates for active devices in front-end RF circuits operating at more than 1GHz [1-2]. In this work we present [...]

Compact Modeling of Avalanche Breakdown in pn-Junctions for Computer-Aided ESD Design (CAD for ESD)

Subramanian Y., Darling R.B., University of Washington, US

This paper presents and validates compact, physically-based electrothermal models of the avalanche process in pn junctions for use in network simulators (e.g. Saber). Self-heating effects are also included. This enables the simulation of large systems [...]

Experimental Determination of Electrical, Metallurgical, and Physical Gate Lengths of Submicron MOSFET’s

Zhou X., Lim K.Y., Nanyang Technological University, SG

A simple, empirically-based method is developed for extraction of submicron surface-channel MOSFET’s effective channel length (Leff) with critical-dimension correction to poly-gate length (Lg) and correlation to metallurgical channel length (Lmet). A self-consistent compact model for [...]

Using Pseudo Transient Continuation and the Finite Element Method to Solve the Nonlinear Poisson-Boltzmann Equation

Shestakov A.I., Milovich J.L., Noy A., Lawrence Livermore National Laboratory, US

The nonlinear Poisson-Boltzmann (PB) eequation is solved using Pseudo Transient Continuation. The PB solver is constructed by modifying the nonlinear diffusion modeule of a 3D, massively parallel, unstructured grid, finite element, radiation-hydrodynamics code. The solver [...]

Using Scalar Algebraic Multigrid Solvers for Efficient 3-D Stress Analysis of Microfabricated Structures

Mijalkovic S., Delft University of Technology, NL

A methodology to improve the performance of iterative solvers in 3-D stress analysis using scalar algebraic multigrid (AMG) solvers has been presented. The principle idea is to split the global system of coupled stress governing [...]

New Numerical Techniques and Tools in SUGAR for 3D MEMS Simulation

Bai Z., Bindel D., Clark J., Demmel J., Pister K., Zhou N., University of California Davis, US

SUGAR is a modified nodal analysis package for 3D MEMS simulations that owes its heritage and its name to the SPICE family of circuit simulation. SUGAR has undergone the stage of proof-of-concept which showed that [...]

Automatic Generation of Small-Signal Dynamic Macromodels from 3-D Simulation

Ramaswamy D., White J.K., Massachusetts Institute of Technology, US

Recent algorithmic developments have greatly accelerated 3-D simulation of micromachined devices, but simulation and optimization of systems which use those devices require much more easily evaluated, yet still accurate, macromodels. In this paper we focus [...]

Efficient Poisson Equation Solvers for Large Scale 3D Simulations

Speyer G., Vasileska D., Goodnick S.M., Arizona State University, US

Self-consistent semiconductor device modeling requires repeated solution of the 2D or 3D Poisson equation that describes the potential profile of the device for a given charge distribution. As a result, efficient methods for the solution [...]

Fast Fluid Analysis for Multibody Micromachined Devices

Wang X., Mucha P., White J.K., Massachusetts Institute of Technology, US

Recently developed fast integral equation methods for computing solutions to the Stokes' equation have proven to be a valuable tool for micro-machined device designers. The speed of these fast codes make it possible to simulate [...]