With the development of industrial production and technology, people continue to put forward new requirements for materials. In the field of electronic appliances, due to the rapid development of integration technology and assembly technology, electronic components and logic circuits are developing in the direction of lightness, thinness and smallness, and the heat is also increased. High thermal conductivity insulating materials are required to effectively remove the heat generated by electronic equipment, which is related to the product’s heat. Service life is related to quality reliability.
The commonly used cooling methods in the past are: natural cooling, ventilation or the use of larger cabinets. As the heating area becomes wider and wider, the heat generated is also increasing, forcing electronic equipment manufacturers to take more effective cooling measures. Thermal interface materials also came into being.
Thermally conductive gasket is one of thermal interface materials. Broadly speaking, it refers to a sheet-like object that can conduct heat. Such objects can be metal plates, epoxy thermally conductive sheets, thermally conductive plastics, thermally conductive rubber, etc.; For example, we will use the silicone rubber material as the basic frame and the sheet-like thermally conductive insulating silicone rubber material filled with the thermally conductive material as the thermally conductive gasket, also known as the thermally conductive silicone rubber.
As one of thermal interface materials, thermal pads have obvious advantages compared with other thermal interface materials.
First of all, the thermal conductive gasket is compressible, soft and elastic, and has the function of buffering and shockproof for the application environment under low pressure;
Secondly, thermal pads have a certain self-adhesiveness. For applications that do not require high viscosity, there is no need to apply adhesive on the surface of thermal pads;
Third, different from other thermal interface materials such as thermally conductive silicone grease, thermally conductive potting glue and thermally conductive phase change materials, thermally conductive gaskets can be easily reused, which is very important for installation and testing;
Fourth, the thickness of the thermal pad is optional. For different gaps, thermal pads with different thicknesses can be selected, that is to say, the thermal pad has a wider application environment;
Finally, it should be emphasized that the thermal conductivity of the thermal pad is very stable, and the thermal conduction effect will not be affected by the increase or decrease of the thickness, which is very different from thermal grease.