How Computer Heat Sinks are Made
Ever wonder how the heat sink on your computer was made? If so, this video should answer some of your questions. Simply put, these are typically made of a metal with high thermal conductivity like aluminum or copper, and incorporate fins to increase surface area. The heat gemerated from a relatively small component is then transferred to the larger heat sink since the equilibrium temperature of the component with the addition of a heat sink is much lower than the component’s alone would be. Read more for the video and a bonus.

For those wondering why heat sinks look the way it does, the design removes heat by convection with those using copper base-plates having better thermal characteristics than those made of aluminum. The former is more effective than an aluminum unit of the same size, which is relevant with regard to the high-power-consumption components used in high-performance computers. Normally, a heat sink is clamped to the integrated heat spreader (IHS), or a flat metal plate the size of the CPU package which is part its assembly and spreads the heat locally.

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Bonus Video


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