Studies on reliability of PVC-graphite thick film resistors

This investigation is undertaken to determine the reliability of PVC-graphite thick film resistors by determining the potential failure mechanism and the mean time - to - failure. Different drift functions are described for PVC-graphite thick film resistors with different PVC-graphite compositions. The values of the functional parameters depend strongly on the storage test temperature. The mean-to-failure of the PVC-graphite thick film resistors are calculated using Pranchov's model for reliability prediction of thick film resistors.