Failure Prognostics of Multilayer Ceramic Capacitors in Temperature-Humidity-Bias Conditions

Jie Gu, Member, IEEE
Michael H. Azarian, Member, IEEE
Michael G. Pecht, Fellow, IEEE
Center for Advanced Life Cycle Engineering (CALCE)
University of Maryland
College Park, MD 20742, USA


This paper presents a prognostics approach which detects the performance degradation of multilayer ceramic capacitors under temperature-humidity-bias conditions, and then predicts remaining useful life. In the tests, three performance parameters (capacitance, dissipation factor and insulation resistance) were monitored in-situ. By comparing the predicted results with the experimental results, the prognostics approach provided advanced warning of failures for capacitors and predicted their remaining useful life.

Index Terms: failure prognostics, health monitoring, multilayer ceramic capacitor

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