Heat sinks are used with high-power semiconductor devices such as power transistors and optoelectronics such as lasers and light-emitting diodes (LEDs), where the heat dissipation ability of the component itself is insufficient to moderate its temperature.

What is the use of heat sink?

What is the purpose of heat sink compound? Heat sink compound is used to fill gaps between the CPU (central processing unit) or other heat generating components and the mechanical heat sink. The mechanical heat sink, a passive component made of a conductive metal, is placed over the CPU.

Where is heat sink located?

The components that generate the most heat in your computer are the CPU (central processing unit), video card (if your computer has one), and the power supply. They always have some cooling, usually a fan. Other components that may have a heat sink include the north bridge, south bridge, and memory.