Heat flow control in thin copper films leads to powerful, cooler, efficient chips, resulting in faster, smaller and more efficient devices

https://www.eurekalert.org/news-releases/1063701 

"as devices shrink, managing heat becomes paramount... Matthiessen’s rule, validated in ultra-thin copper films, predict how different scattering processes influence electron flow... hermoreflectance measurement of copper's thermal conductivity cross-checked with electrical resistivity... less energy lost to heat...  CMOS technology... high-end gaming consoles, AI-driven data centers"