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Author Topic: Yet another Pb free Failure Mode in PCBs  (Read 2993 times)

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HLA-27b

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Yet another Pb free Failure Mode in PCBs
« on: July 25, 2012, 08:56:25 pm »
Just found this very detailed paper

http://www.smtnet.com/library/files/upload/Reliability_and_Failure_Mechanisms.pdf

Apparently small vias can crack during high temperature reflow  associated with lead free processes.
Here is a picture worth 1000 words:

« Last Edit: July 25, 2012, 08:59:50 pm by HAL-42b »
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