The Surface Area for Heat Dissipation and the Effectiveness
It may seem logical that the larger the area, the better the cooling effect, but when designing a heat sink in a limited space, it is not always the case that the larger the fin area, the better. The only way to achieve more heat dissipation area in a fixed space is to increase the number of fins, but increasing the number of fins also reduces the width of the airflow channel.
Thermal conductivity and thermal conductivity coefficiency
The thermal conductivity and heat dissipation capabilities of heat sinks are closely associated according to the service life and performance of electronic products.