Why use thermal silicone sheet as thermal conductive medium

Why use thermal silicone sheet as thermal conductive medium

As we all know, electronic products are currently developing towards smaller and smaller size. Any electronic product is a heat generating body and requires a complete set of heat dissipation solutions. Currently, the most important materials for these electronic products in the thermal conduction medium are- The performance of thermally conductive silicone sheets has been continuously improved to meet the increasingly high requirements of products for heat dissipation.
At present, the thermal conductivity of thermally conductive silicone sheets on the market can reach 0.8W-5.0W. Compared with the 3W thermally conductive silicone sheets in previous years, the thermal conductivity of the thermally conductive silicone sheets has been improved a lot. The thermal resistance of the thermally conductive silicone sheets can reach 0.05-k.㎡/W. The hardness can also be adjusted according to the actual situation of the customer’s product. Generally, in the range of 10 degrees to 50 degrees, the thickness can be up to 15mm. Of course, the thermal conductivity is generally relatively low in this case. Generally, the thermal conductivity is ultra-high. The thickness of the thermally conductive silicone sheet does not exceed 5mm.
The thermal conductive silicone sheet has the following advantages:
1. The thermal conductivity of the thermally conductive silicone sheet is very selective and very stable. Customers can choose the appropriate thermally conductive silicone sheet according to the actual needs of their products, which meets the needs of the product without causing unnecessary waste. Compared with thermal conductivity The thermal conductivity of the double-sided adhesive is much more ideal. At present, the thermal conductivity of the thermally conductive double-sided adhesive on the market does not exceed 1W, and the applicability is relatively not so strong.
2. The thickness and hardness of the thermally conductive silicone sheet can be adjusted according to the actual needs of the product, so the heat dissipation structure can be bridged in the thermal conduction channel, the size tolerance of the chip, etc., and the tolerance requirements for the contact surface of the heat dissipation components in the structural design can be reduced. The silicone sheet can fully increase the contact area between the heating element and the heat sink, which can greatly reduce the production cost.
3. In addition to thermal conductivity, the thermally conductive silicone sheet also has insulating properties, and has excellent protection against EMC. Because the material is a silicone sheet, it is not easy to be punctured, torn or damaged under pressure , EMC reliability is better.
4. The thermally conductive silicone sheet has good elasticity and compressibility, and has a good shock absorption effect. Adjusting the density and hardness can produce a good absorption effect on low-frequency electromagnetic noise.

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