Using thermally stimulated currents to find defective capacitors |
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| Authors: | Ming Yan Hong-TAO Sun Liang-YING Zhang Xi Yao |
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| Affiliation: |
a Electronic Materials Research Laboratory, Xi'an Jiaotong University, Xi'an, China
b Department of Chemistry and Materials, University of L'Aquila, L'Aquila, Italy |
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| Abstract: | BaTiO3 multilayer capacitors with a nominal capacitance of 3.5nF have been carefully measured using the thermally stimulated current (TSC) technique. When a 300V polarization voltage is applied at room temperature, a new TSC peak appeared in defective sample A after it has been immersed in water. No new peak was found in good-quality sample B after a similar treatment. The accelerated life test shows that sample A hasa much shorter life than sample B in terms of insulation resistance. |
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