摘要
首先进行了电子产品失效模型的理论研究,并利用加速退化试验技术而研究了某通信产品失效机理一致的应力范围,通过对试验数据进行的统计分析,计算出失效机理一致情况下的激活能。在可靠性指标验证的试验研究中,将试验样品分成若干组分别进行恒温加速验证试验,并将试验结果与现场统计数据进行比较,最终确定产品的MTBF。
The theory about the failure mechanism model of electronic products is studied.Through the accelerated degradation testing,the stress ranges for a communication product under consistent failure mechanisms can be achieved.Based on the statistical analysis of the testing data,the activation energy under consistent failure mechanisms is estimated.During the validation testing,the MTBF of the product is obtained by applying constant temperature accelerated testing to the grouped samples and then comparing the test results with the field statistical data.
出处
《电子产品可靠性与环境试验》
2010年第4期6-10,共5页
Electronic Product Reliability and Environmental Testing
关键词
加速退化试验
失效机理
激活能
指标验证
accelerated degradation testing
failure-mechanism
activation energy
specification demonstration
