Abstract
The electrical conductivity of the multi-layer ceramic capacitor was measured at high temperature, and then the electrical conduction mechanism was investigated.
The measurement carried out under constant voltage. The current was found to increase with time, leading to final breakdown. Two peaks appeared at the current-time cureves. It was considered that the peaks originated from the accumulated space charge. The current density was exponentially proportional with the electrical field. The carrier mobility of the electrical conduction was calculated to be the order of 10-11-10-12cm2/V•s.
From the rusults, it was indicated that the, ionic conduction-would be dominant in the multi-layerceramic capacitor at high temperature.
