
Accession Number : ADA137919
Title : Computation of CurrentVoltageCharacteristics in a Semiconductor Device Using ArcLength Continuation.
Descriptive Note : Technical summary rept.,
Corporate Author : WISCONSIN UNIVMADISON MATHEMATICS RESEARCH CENTER
Personal Author(s) : Markowich,P A ; Ringhofer,C A ; Steindl,A
PDF Url : ADA137919
Report Date : Dec 1983
Pagination or Media Count : 24
Abstract : This paper presents an algorithm for the numerical computation of currentvoltagecharacteristics in a semiconductor device (i.e. curves describing the dependence of the output current on the input voltage at some contacts). For certain devices (e.g. thyristors) the set of equations describing the state of the semiconductor device have multiple solutions for specific voltage ranges and snapback phenomena occur (i.e. the current is not a single valued function of the voltage). This implies that the characteristic cannot be computed numerically by merely stepping up the voltage. The algorithm involves reparameterizing the characteristics curve by means of a parameter which approximate the arclength of the curve. Continuation in this parameter past snapbackpoints does not cause serious difficulty. The authors discuss the implementation of the reparameterization and present a numerical example. (Author)
Descriptors : *Algorithms, *Computations, *Electric current, *Semiconductor devices, Equations, Parameters, Semiconductor junctions, Current density, Electron density
Subject Categories : Electrical and Electronic Equipment
Theoretical Mathematics
Electricity and Magnetism
Distribution Statement : APPROVED FOR PUBLIC RELEASE