Harsh environment application of electronics - Reliability of copper wiring and testability thereof

摘要

Harsh environment imposes different and more severe operational demands to electronic devices. Besides loads as temperature and vibration, also chemical loads in contact to electronics, can lead to new types of failure, e.g. by corrosion. With regard to reliability demands, testability thereof becomes more and more important. This implies activation energies for copper corrosion, which were determined. A model is proposed in order to gain more understanding of the ongoing chemical processes between the electronic control unit and transmission fluid.