期刊
IEEE TRANSACTIONS ON RELIABILITY
卷 52, 期 1, 页码 125-129出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TR.2002.804492
关键词
bathtub curve; burn-in; hazard function; infant mortality; mixture of distributions
This paper addresses some of the fundamental assumptions underlying the bathtub curve. It is shown to be unlikely that any practical hazard function is decreasing near zero. Great care should be taken in interpreting the hazard function, particularly in applying quality-control practices, such as burn-in or environmental-stress-screeing to manufactured products.
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