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DETECTIVE STORY

Testing Problem Parts

by George Martin

Start ı A Good Deal ı The Mystery Unfolds ı Postmortem ı Sources and PDF

POSTMORTEM

I found EPROMs from another manufacturer and sent them to my customer. Heıll test with them and hopefully they will clear up the issues. If this was at the beginning of a design cycle, it would be a disaster. How could you ever proceed to production? At least we know that production is basically OK. I suggested that he send the 27C512 devices back to the manufacturer and get a failure analysis. We also talked about building an EPROM test set, but we would probably just create more problems than we would solve.

So put this under you pillow and sleep on it. If we have a breakthrough, Iıll let you know. If anyone else has mysterious manufacturing problems, Iıd be interested in hearing about them.

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