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ElectroComponent Science and Technology
Volume 9, Issue 3, Pages 185-189

The Influence of Electrical Pulses on Thick Film (Du Pont 1421 Birox) Resistors

Institute of Electron Technology, Technical University of Wroclaw, Wroclaw 50–370, Poland

Received 22 May 1981; Accepted 20 October 1981

Copyright © 1982 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper presents data on the effect of electric pulses on thick film resistors made using Du Pont 1421 Birox resistor pastes.

Resistance changes during the application of the electric pulses were investigated. Two types of change were observed: reversible and irreversible (i.e. catastrophic).

In order to illustrate the causes of these changes, observations of the film on a scanning electron microscope were made. Microcracks were observed in the film, which were mostly responsible for the permanent resistance changes.