
We can learn more from our failures than we can from our successes. This isn’t just a good rule for us to live by personally but is applicable to the products that we design and manufacture. In my experience, the all-important step that is short-changed in “learning from our failures” is “learning”—not just getting to the root cause in order to solve the problem but to understanding the gaps that exist in our current design and manufacturing requirements and practices that allowed the failure to spill into the field. Identifying these gaps is the key to future failure prevention. In this installment, I’m going to highlight how Weibull Analysis (a reliability tool when used in the time domain) of module field failures can be used to identify the holes in our design or manufacturing requirements or processes.
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