I knew it!

http://en.m.wikipedia.org/wiki/Magic_smoke

That’s why some IC have

That’s why some IC have silly hats of aluminium over them! It’s for not letting the smoke to escape!

This was an old joke when I
This was an old joke when I was a ham in high school.

This magic smoke seems to be
This magic smoke seems to be serious issue in the circuits and the only way to resolve this from my opinion is a certain number of fans near the circuits to overcome with this heating problem.