Interpolation methods in modelling semiconductor devices by enhanced controlled sources

Zuberek, W. M. (1987) Interpolation methods in modelling semiconductor devices by enhanced controlled sources. In: 21-st Asilomar Conference on Signals, Systems and Computers,, 1987, Pacific Grove, CA, USA.

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Abstract

Numerical modelling of semiconductor devices, based on detailed descriptions of geometries and electrical prop- erties of materials, is often the most time-consuming part of circuit simulations. To reduce the amount of required calculations, table-driven methods are proposed in which semiconductor devices are represented by (nonlinear) de- pendent voltage/current sources QdrivenU by (multidi- mensional) arrays of data obtained from measurements, evaluations, or more detailed simulations. The actual val- ues of voltages and currents are determined by interpo- lation of these discrete data. A comparison of several interpolation methods is illustrated by numerical results obtained from the SPICE-PAC package of simulation rou- tines.

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