Hi Joyce,
Boy, talk about a grass assumption:
>(1) if the assembly is qualified per Mil, why it is fail so early = 1-8
years is relatively short time >consider the designed life is 15 -20 years.
What makes you think that being MIL-qualified assures 15-20 years of life?
Particularly for an older design?
Just because something is good manufactured quality does not make it
reliable--for that you need DfR [Design for Reliability].

Werner Engelmaier

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