Why do electronic products choose thermally conductive insulating silicone sheets?

Thermally conductive materials are widely used in electronic products. The most common should be thermally conductive insulating silicone sheets. It is a thermally conductive material commonly used on electronic components. Generally, electronic products are usually coated with glass fiber substrates, which are made of silicone polymer glue and become thermally conductive adhesive materials. Why do many electronic products choose thermally conductive insulating silicone sheets?

Thermally conductive insulating silicone sheet is a thermally conductive dielectric material synthesized by a special process based on silica gel with various auxiliary materials such as metal oxides added. Thermally conductive silicone sheet is specially designed for heat transfer in the gaps of electronic products. It fills the gaps to transfer heat and heat dissipation parts, and plays the role of insulation, damping and sealing.

So why do electronic products choose thermally conductive insulating silicone sheets? The main purpose of the first selection of thermal conductive silicone sheet is to reduce the contact thermal resistance between the surface of the heat source and the contact surface of the heat sink. The thermal conductive silicone sheet can fill the gap of the contact surface very well. Impeding the transfer of heat between the contact surfaces. Poor conductors where air is hot will seriously hinder the transfer of heat between the contact surfaces. The addition of a thermally conductive silicone sheet between the heat source and the radiator can squeeze air out of the contact surfaces; Third, with the addition of thermally conductive silicone sheet, the contact surface between the heating source and the radiator can be better and fully contacted, and the face-to-face contact can be truly achieved, so that the temperature response can reach as small a temperature difference as possible.