Case study of no fault founds in household appliances
In recent years,some obvious fault problems have been solved gradually with the continuous development of reliability engineering technologies,whereas the no fault found(NFF)phenomenon remains a big obstacle that troubles various manufacturers.Especially in the household appliance industry,NFF accounts for about 30–70%of the returned faulty products.Some electronic product manufacturers just ignore customers complaints of intermittent failure or the NFF phenomenon during retesting which may indicate defects in the products and simply attribute the problems as maintenance engineers misjudgment.Consequently,they rather lose the opportunity of improving product reliability.This paper reviews the NFF phenomenon commonly occurred in household appliances,with in-depth analysis on the failure modes and mechanisms.Based on failure physics,a few solutions to the NFF problems are also suggested,which can reduce substantially the NFF rate by approximately 50%.
no fault found intermittent failure failure analysis failure mechanism
Gaoming Shi Guanghua Yuan Xuanlong Chen Zhenfeng Xie Cheng Chen
China Electronic Product Reliability and Environmental Testing Research Institute(CEPREI),Guangzhou, China Electronic Product Reliability and Environmental Testing Research Institute(CEPREI),Guangzhou, Shanghai Jian Qiao University,Shanghai,China
国际会议
上海
英文
1116-1118
2018-08-08（万方平台首次上网日期，不代表论文的发表时间）