My undereducated $0.02:
Referring to the insulating layers as "empty space" may not be so
accurate on a practical scale. On subatomic scales, of course, all
matter is mostly empty space; there's relatively tons of nothingness
between atomic nuclei and their electrons. I don't get such a strong
implication that empty space is what's slowing the transfer of heat in
these materials, though; my takeaway from the article is that it has
more to do with how well a particular material dampens vibration. But
on the other hand, how the atomic-scale empty space in a material is
distributed might have a lot to do with it. I'm not even a shade-tree
quantum mechanic.
At any rate, I'm not sure good insulation is the ticket to further
miniaturization of electronics. Isn't heat the enemy? Robust
electronics have mechanisms that are good at removing heat from the hot
things, not holding it all in. Imagine wrapping your computer's CPU in
a cozy blanket instead of strapping a huge fan to it. I imagine it
would not operate at peak efficiency that way...
-B
On 8/17/19 1:48 PM, Pete Soper via TriEmbed wrote:
Toward the end of this short blurb is the basic notion they're working
toward: treating heat the same way you might treat sound with multipane
glass to efficiently manage the transfer of thermal energy. It seems
implicit that the "insulation" between layers with the scheme mentioned
is simply empty space.
https://phys.org/news/2019-08-shield-atoms-thick-electronic-devices.html
-Pete
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