Any electronic device generates heat and with increasing performance the heat development increases. If the heat is not sufficiently dissipated this can lead to an overheating of the device up to a complete system failure. Heatsinks accept the thermal management of electronic devices. Heatsinks are made of good thermal conductive material such as aluminium or copper.

If there is a temperature difference between the two environments, the heat passes from the high temperature environment to the low temperature environment. Heat transfer depends not only on the difference in ambient temperatures, but also on the properties of the environment and its surfaces. Therefore, we will examine the heat transfer system under three headings.