Whatever you’re heating up has to be a little cooler than the coolest chips in your system, because heat only transfers that way. Semiconductor lifetime goes d

Whatever you’re heating up has to be a little cooler than the coolest chips in your system, because heat only transfers that way. Semiconductor lifetime goes down with temperature, roughly doubling failure rate for every 10C increase. So if you want to heat something, it can only be to a low temperature. Heating buildings can work, but pasteurization requires temperatures near 100 C which reduces chip lifetime too much to be economical.