Title :
Simulation of thermal behaviour in hybrid circuits
Author :
Rottiers, L. ; Mey, G. De
Author_Institution :
Lab. of Electron., Ghent State Univ., Belgium
Abstract :
A model is presented to investigate the hot-spot effect, occurring at the termination point of a trimming out in screen-printed resistors. The phenomenon is studied by means of a potential problem to calculate the electrical field in the resistor, for which a 2D thermal model, and a 3D thermal model have been built up. The steady-state behavior and the transient behavior are presented. Several examples show the usefulness of computer simulations to solve thermal problems especially in the case of the trimmed resistor
Keywords :
digital simulation; hybrid integrated circuits; modelling; thermal analysis; thick film resistors; 2D thermal model; 3D thermal model; computer simulations; electrical field; hot-spot effect; hybrid circuits; potential problem; screen-printed resistors; steady-state behavior; termination point; thermal behaviour; transient behavior; trimmed resistor; trimming out; Ceramics; Circuit simulation; Laboratories; Microwave integrated circuits; Power electronics; Resistors; Substrates; Temperature; Thermal conductivity; Thermal resistance;
Conference_Titel :
Thermal Phenomena in the Fabrication and Operation of Electronic Components: I-THERM '88, InterSociety Conference on
Conference_Location :
Los Angeles, CA
DOI :
10.1109/ITHERM.1988.28670
