What is the thermal spreader?

Thermal spreader is a device that helps with heat scattering from the heat source to the medium for heat exchange. This is a relatively complicated way to say that heat exchanger helps keep appliances or equipment in some cases cold or hot by gaining heat from where it is generated where it must be. This is usually required where the medium for heat exchange or a place that must pass through, is unable to absorb the necessary amount of heat in itself. Good examples of this theory include copper bases for stainless steel dishes or fins for high current electronic components. The copper base helps to absorb stainless steel pots and maintain heat and the cooler helps the microprocessor shelter. Enough heat to or away from one medium or material to another depends on a number of technical factors that can sometimes confuse this problem. The teaching problem in this regard is the difference in the density of the thermal flow of different materials. Simply put, we know thatThat some materials require a much larger exposure area than others to absorb the same amount of heat. Thermal sinks commonly mounted on electronic components or fins on the oil heater or cooler are examples of how the theory of heat spreader works to bypass this problem.

For example, a high -profit transistor surface generates much more heat than air in contact with it can absorb over the period of the time period. In order to bypass this phenomenon, a thermal spreader or cooler is connected to the transistor. This is usually heavy copper or aluminum base with a large number of fins protruding from its surface. This achieves a large increase in the volume of air exposed to the heat source, which negates the difference of thermal flow density between the transistor and forms. In this way, the propagation of the head becomes the primary mechanism of heat exchanger that helps secondary exchangesThe air, air to effectively absorb the generated thermal energy.

The use of a heat spreader is of course limited to applications where the secondary replaceable medium is unable to overcome the differences in the heat flow density between it and the heat source material. The heat spreader materials should be good thermal conductors and the surface profile must be relatively carefully calculated to offer maximum exposure and circulation. The connection between the heat source and the spreader must also be the most effective thermal passage. For this purpose, the surfaces of heat transfer are often applied to the surfaces before the heat spreader is connected.