研究和处理DPA不合格的母体

Research and treatment of the parent population samples failed in DPA

样品的DPA结论为不合格时,样品母体能否使用?正确解决这个问题可使DPA工作为系统可靠性提高发挥更大作用的同时,取得更好的效费比,并为解决好这个问题,进行了认真研究和分析,并辅助以实验。

Could the parent population be available for use as the DPA result of its samples arefailure? If this problem can be solved properly, DPA will play a more important role and gain a bettereffective- cost ratio in improving system reliability. For solving this, it is necessary to make thor-ough researches and analyses, and to do some experiments .