Abstract
In this paper, DC breakdown in BaTiO/sub 3/-based multilayer ceramic capacitors is studied. It was found that the current-voltage curves during the short-time DC breakdown test change after prestressing at room and Curie temperatures, while the current-voltage curves does not show any change at high temperature. After measuring the breakdown voltage before and after prestressing, it was confirmed that homo space charge is accumulated near the cathode at room and Curie temperature. This causes the increase and decrease of current with and without polarity reversal after prestressing, respectively. No space charge effect can be observed at high temperature is due to the considerable thermal effect on DC breakdown in multilayer ceramic capacitors.
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