https://phys.org/news/2019-08-shield-atoms-thick-electronic-devices.html This is quite an interesting study. Heat from microprocessors are generated by electrons at heigh speed hitting things. Which creates sound, or I guess more accurately vibrations. Which is what causes the heat. So they have come up with a 10 atom thick protection, 1 layer of 1 atom thick and 3 layers of 3 atom thick materials. This works like sound proofing that disperses the heat/sound quickly. I guess it would lead to a buildup of heat somewhere else but sound like it helps stop it moving in one direction.