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Thermal effects on PCB Thru Holes

Thermal effects on PCB Thru Holes

Thermal effects on PCB Thru Holes

(OP)
Does anyone have any experience of the effects of thermal contraction/expansion on plated through holes in PCB (PWB) assemblies.
  I appreciate that whilst expansion due to excess heat or shock caused by rapid heating can cause fractures in the copper barrel of a circuit board, it is unclear if there are any complications caused by the sort of sub-zero temperatures that can be endured by assemblies used in aviation (or even in the hold of an aircraft on long haul flights).
  I would be extremely grateful for an answer on this one, from anyone with relevant experience.

Regards,

Steve Bull

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