发光学报, 2013, 34 (2): 213, 网络出版: 2013-02-26
一种基于伪失效寿命的LED可靠性快速评价方法
Rapid Reliability Evaluation Method of LED Based on Pseudo-failure Lifetime
摘要
提出一种快速评价LED可靠性的有效方法。通过测试LED样品的伪失效寿命, 结合Minitab软件进行数据分析, 确定全部样品的伪失效寿命服从二参数的威布尔分布。通过计算威布尔分布尺度参数, 比较不同样品的尺度参数来评价产品的可靠性。该方法对LED的可靠性评价和寿命预测有一定的参考价值。
Abstract
An efficient and rapid reliability evaluation method of LED has been proposed. The pseudo-failure lifetime is tested and the lifetime data is analyzed by Minitab. The results show that the pseudo-failure lifetime of all samples are Weibull distribution. The reliability evaluation of LED products are made by comparing the scale parameters of Weibull distribution. This method has a certain reference value to reliability evaluation and life prediction of LED.
郭伟玲, 樊星, 崔德胜, 吴国庆, 俞鑫. 一种基于伪失效寿命的LED可靠性快速评价方法[J]. 发光学报, 2013, 34(2): 213. GUO Wei-ling, FAN Xing, CUI De-sheng, WU Guo-qing, YU Xin. Rapid Reliability Evaluation Method of LED Based on Pseudo-failure Lifetime[J]. Chinese Journal of Luminescence, 2013, 34(2): 213.