| 杨喜存,李颖.常规试验设备温度循环应力筛选技术改进[J].装备环境工程,2014,11(3):101-104. YANG Xi-cun,LI Ying.Development of Routine Test Equipment in Environmental Stress Screening[J].Equipment Environmental Engineering,2014,11(3):101-104. |
| 常规试验设备温度循环应力筛选技术改进 |
| Development of Routine Test Equipment in Environmental Stress Screening |
| 投稿时间：2014-02-05 修订日期：2014-03-18 |
| DOI：10.7643/issn.1672-9242.2014.03.021 |
| 中文关键词: 常规试验设备 温度循环试验 ESS 升降温速率 筛选度 |
| 英文关键词:routine test equipment temperature circle test environmental stress screening ( ESS ) change rate of temperature screening strength |
| 基金项目: |
|
|
|
|
| 摘要点击次数: |
| 全文下载次数: |
| 中文摘要: |
| 目的 寻找基于常规试验设备温度循环应力筛选技术的改进方法。 方法 应用常规温度循环试验箱,结合对军用电子产品进行环境应力筛选( ESS) 的实际情况,测量产品在温度循环应力筛选时,产品内部升降温的实际速率,通过对这些测量结果比较分析,找出这一方法存在的问题,特别是缺陷暴露程度与应力筛选的相关性差,通过对温度循环筛选参数的合理选择进行分析,找出解决这一问题的思路。 结果 理论筛选度较高( 如 0 . 89 ) 的试验,实际测算额得出的筛选度很低( 如 0 . 54 ) 。 结论 应用温度循环应力筛选的方法,确立合理的应力参数,就可取得理想的试验效果,节省一半的试验时间。 |
| 英文摘要: |
| Objective To search for improvement methods based on the routine test equipment temperature cycle stress screening technology. Methods Ordinary thermal cycle test equipment was used, in combination with the actual screening circumstance of the army electronics product, to measure the actual temperature change rate inside the product during temperature cycle stress screening. These measurement results were then analyzed to find out the problems with this method, especially the poor correlation between the fault exposure and the stress screening. To solve this problem, the reasonable selection of temperature cycle screening parameters was analyzed. Results Tests with high theoretical screening strength ( e. g. , 0. 89) turned out to have low measured values of screening strength ( e. g. , 0. 54) . Conclusion The application of temperature cycle stress screening method and establishment of reasonable stress parameters could lead to ideal test results and save half of the test time. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
