| 混合厚膜直流-直流变换器加速寿命试验和可靠性评估 |
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| 引用本文： | 刘罡,王其岗.混合厚膜直流-直流变换器加速寿命试验和可靠性评估[J].中国空间科学技术,2010,30(3):63. |
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| 作者姓名： | 刘罡 王其岗 |
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| 作者单位： | 兰州物理研究所; |
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| 摘 要： | 提出了一种混合厚膜直流-直流(DC-DC)变换器单步进应力加速寿命试验方法。以三种混合厚膜DC-DC变换器为样品,采用提高环境温度并按定时截尾方式进行加速寿命试验,可以在相对短的时间内完成样品的可靠性评估。通过分析失效样品,能够识别设计和制造缺陷,为改进提供依据,最终为混合厚膜DC-DC变换器通过可靠性鉴定并实现航天应用奠定一些基础。
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| 关 键 词： | 直流-直流变换器 加速寿命试验 可靠性评估 失效分析 供配电系统航天器 |
Acceleration Life Test and Reliability Assessment for Hybrid Thick Film DC-DC Converter |
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| Liu Gang,Wang Qigang.Acceleration Life Test and Reliability Assessment for Hybrid Thick Film DC-DC Converter[J].Chinese Space Science and Technology,2010,30(3):63. |
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| Authors: | Liu Gang Wang Qigang |
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| Abstract: | A single step-stress acceleration life test method for hybrid thick film DC-DC converters was proposed.Sampling three kinds of hybrid thick film DC-DC converter,the acceleration life tests were conducted by raising the environmental temperature and under fixed-time curtailment,which can finish the sample′s reliability assessment in a relatively short time.By analyzing the failed sample,it was able to determine the fault of design & process,provide basis of improvement,and lay the foundation of passing reliability qualification and realizing space use for the hybrid thick film DC-DC converter. |
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