The next thing is probably going to be some sort of 'in-die' cooling.
Like cutting channels in the back of a die for a heat exchanging
fliud or gas to pass thru. Perhaps a peizoelectric 'pump' to keep it moving
to a large heatspreader/radiator plate. The system would be sealed
and probably use some sort of freon-type fluid to take advantage of
the phase change thermodynamics. Sort of a heat-pipe with a active
circulation.
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