Heat Sinks

Heat Sinks

Heat sinks are passive cooling devices that are used to dissipate heat generated by electronic components, such as microprocessors, graphics cards, and power amplifiers. They are designed to increase the surface area of the component, thereby increasing the rate at which heat can be transferred from the component to the surrounding air. Heat sinks are typically made of materials with high thermal conductivity, such as aluminum or copper, and are often designed with fins or other features to increase their surface area. The effectiveness of a heat sink depends on a number of factors, including its size, shape, material, and the airflow around it. In general, larger heat sinks with more surface area are more effective at dissipating heat than smaller ones. The shape of the heat sink can also have an impact on its effectiveness, with designs that promote turbulent airflow generally being more effective than those that promote laminar airflow. Heat sinks are commonly used in a wide range of electronic devices, from desktop computers and servers to mobile phones and LED lighting. They are particularly important in high-performance computing applications, where the heat generated by the processor can be significant. In these applications, heat sinks are often combined with other cooling technologies, such as fans or liquid cooling systems, to further increase their effectiveness.

passive cooling, thermal conductivity, surface area, turbulent airflow, high-performance computing

— Andrew Moore

CITATION : "Andrew Moore. 'Heat Sinks.' Design+Encyclopedia. https://design-encyclopedia.com/define/heat-sinks?E=351465 (Accessed on October 14, 2026)"