Failure Analysis: Why Mistakes Are Made and How to Avoid Making One
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A good starting point for this discussion is a typical generic definition of the term failure analysis offered by Wikipedia: “Failure analysis is the process of collecting and analyzing data to determine the cause of a failure.” Once the cause of failure is known, steps can be made to avoid subsequent failures by eliminating that cause.
It follows from the definition that to falsely identify an incorrect cause is the biggest failure analysis mistake possible. Corrective action focused in a wrong direction is doomed to be ineffective. No progress can be made until the mistake is realized and the correct cause is identified. The net result of a faulty analysis is negative, not a positive. Time is wasted as the problem grows and becomes more complicated.
Failure to identify any cause at all is not catastrophic, but without an accurate cause, precise corrective action is not likely. The best options available are loosely targeted and speculative.
The last few decades have...
KeywordsFailure Mode Print Circuit Board Failure Analysis Corrective Action Excessive Current
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