A FAST POISSON SOLVER FOR REALISTIC SEMICONDUCTOR-DEVICE STRUCTURES

Combines the techniques of fast Fourier transforms, Buneman cyclic red uction and the capacity matrix in a finite difference Poisson solver s pecifically designed for modelling realistic electronic device structu res. A solution maybe determined on a number of connected rectangular regions which correctly accounts for continuity of the electric displa cement at dielectric interlaces. Suggests the method is particularly w ell suited to problems requiring repeated solution with the same devic e structure and provides a self-consistent Monte Carlo simulation as a n example of such an application.