Hello All,

A colleague asked us the following question and we thought it would be good to post on TechNet.

"Is anyone aware of a spreadsheet that can calculate acceleration
factors for conversion of PCB cycles to failure from one thermal cycle
(e.g. -40/125C) to another (-20/80C)? Looking at IPC-TR-579 (Round Robin
Reliability Evaluation of Small Diameter PTHs in PWBs), it seems like
the equations presented in section 7 (e.g. Eq. 6) could be used to do
this."



Best regards,

Paul Reid

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