For over 50 years now, egged on by the seeming inevitability of Moore’s Law, engineers have managed to double the number of transistors they can pack into the same area every two years. But while the industry was chasing logic density, an unwanted side effect became more prominent: heat. In a system-on-chip (SoC) like today’s CPUs and GPUs, temperature affects performance, power consumption, and energy efficiency. Over time, excessive heat can slow the propagation of critical signals in a proces...