Integrated Approach for Field Reliability Prediction Based on Accelerated Life Testing |
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Authors: | Mingxiao Jiang Weiqiu Chen |
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Affiliation: | 1. Zhejiang University, Hangzhou, P.R. China;2. Medtronic Inc., Minneapolis, Minnesotamingxiao.jiang@medtronic.com |
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Abstract: | ABSTRACTTo predict field reliability using analytical modeling, several important reliability activities should be conducted, including failure mode and effect analysis, stress and usage condition analysis, physics of failure analysis, accelerated life testing and modeling, and cumulative damage modeling if needed. With all of the mentioned activities and results, the field reliability confidence limit can be predicted at a certain confidence level, if a modeling framework can be established. This article builds such an integrated process and comprehensive modeling framework, especially with cumulative damage rules when the certain field stresses are random processes. An engineering product is provided as an application to illustrate the effectiveness of proposed method. |
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Keywords: | accelerated life testing confidence limit cumulative damage failure mode and effect analysis field reliability field stress physics of failures random process |
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