In small electronic devices such as laptops, smartphones, VR HMDs, and mini PCs, performance degradation due to heat has been a major obstacle to implementing high performance. Existing solutions have relied on small fans or heat pipes, but fans are difficult to mount due to thickness limitations, and cause noise, vibration, and dust intrusion issues. Heat pipes alone are insufficient to actively dissipate heat.
As a result, high-performance chips often fail to perform properly because their clock speeds are reduced (throttled) when heat builds up. For example, gaming smartphones get hot within minutes and the frame rate drops, or fanless tablets stutter under sustained load. Also, when using fans, small devices have noticeable fan noise, and there are concerns about failures due to dust.
In other words, there was a need for a “quiet, thin, and efficient way to cool heat,” and the first-generation AirJet pointed the way, but with a heat dissipation of around 5W, it was insufficient for high-power chips.