Heat sinks are a component mounted in most electronic devices, assemblies, and optoelectronic components to prevent them from overheating. In addition, it renders supplemental cooling to the machines. All the elements of the heat sink are designed in a way that ensures that these electric devices function within the temperature ranges. Some of the key factors that must be considered in heat sink design include thermal resistance, fin, material, configuration, size and shape, efficiency. Here are all these essential things clearly described to learn more about the heat sink design.
Materials of Heat Sinks
The material of the heat sink is one of the most critical parameters to consider. It is basically constructive using thermal conductive materials, like copper and aluminum. It is imperative that the heat sinks must have a high thermal conductivity. Besides, aluminum and copper, stainless steel, and other metal alloys are also used for their construction as an economical alternative.
Thermal Conductivity of Heat Sinks
Thermal conductivity is basically the ability of its material to move heat through itself. Usually, copper is considered more efficient in moving this thermal energy because of the high thermal conductivity. Besides the material, thermal conductivity also depends upon the coating and finishing of the surface. It is always important to specify the thermal energy along with the material.
Fins of Heat Sink
The fin style of the heat sink influences its ability to release the heat in the surrounding. It is basically a subject of the shape of the heat-generating component. There are different styles available according to the shape—for example, the straight-fin and radial-fin style.
Standard Heat Sinks Components
All heat sinks usually have just a standard size that can match any component’s standard sizes. Some commonly used component styles can generate a high amount of excess energy. For example, the Ball Grid Array (BGA) chips require the use of heat sink China.
Heat Sink Attachment Techniques
It is not enough to just place a heat sink on an electric component, but proper connection and installation are very much important. To attach the heat sinks to their respective components, there is a special adhesive technique practiced. This method can create a solid thermal connection between the heating component and the heat sink. One can also use different items, such as thermal grease, thermal paste, or another thermally conductive adhesive.