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Reliability of filled vias, where is the old IBM study?

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#77742

Reliability of filled vs open vias, where is the old IBM study? | 15 June, 2017

I have seen a few references in this forum to an old study (1980s?) by Roger Wild at IBM. But I cannot find a published report or usable reference to one. davef mentioned the SMTnet archives as a possible source, but that has also been a dead end. Does anyone have a better reference?

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#77744

Reliability of filled vs open vias, where is the old IBM study? | 15 June, 2017

You should be searching on RN Wild, not Roger Wild

This might be a good starting point https://supplychain.gsfc.nasa.gov/docs/sc2011j.planteb.pacquetteasof1020.pdf

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