[Zach]’s teardown revealed a pretty sophisticated thermal design that at least ... [Zach] used a fancy boron nitride heat transfer paste and attached the heat sink to the spreader with epoxy.

It may look like he sent his design off to the board house for production ... he takes us through some rough math in calculating heat sinks. We’ve always just guessed, but like any good teacher ...

Heat sinks – like this one from Okat – use basic physics: thanks to conductive materials such as aluminum and copper, they absorb waste heat and release it into the air. Installing a heatsink ...