Recently, some friends often ask how good is the thermal conductivity of aluminum substrate, etc., some related questions, the following follow: metal core pcb manufacturer to understand:
The thermal conductivity of aluminum substrate is one of the important indexes to evaluate the quality of aluminum substrate.The other two important factors are the thermal resistance and pressure resistance of aluminum substrate.At present, the thermal conductivity of aluminum substrate on the market is generally 2.00.1.The thermal conductivity of aluminum substrate can be measured by instruments, which will directly affect the price of aluminum substrate.In general, the higher the thermal conductivity of the aluminum substrate, the higher the price of the aluminum substrate.As for the mass of the aluminum substrate, we cannot just look at the thermal conductivity of the aluminum substrate.The thermal conductivity, thermal resistance and compressive properties of aluminum substrate determine the properties of aluminum substrate.It’s not determined by a single factor.
Generally speaking, the thermal conductivity of aluminum substrate is fixed and will not change with the change of external factors.The thermal conductivity is mainly determined by the raw materials of aluminum substrate.If high thermal conductivity materials such as copper and silver are added, the thermal conductivity of aluminum substrate materials will certainly be higher.Thermal conductivity is a basic physical quantity, which is a fixed part of the material, and its thermal conductivity is independent of thickness or area.
Nowadays, ceramics, copper, etc. are usually highly conductive.However, due to cost issues, most aluminum substrates are used in the market, and the corresponding thermal conductivity of aluminum substrates is a parameter of concern to everyone.Higher thermal conductivity is one of the hallmarks of better function.Aluminum substrate is a common metal-clad copper-aluminum substrate with good thermal conductivity, electrical insulation and processing functions.The thermal conductivity of aluminum substrates is usually between 1.0, 1.5 and 2.0, depending on the demand for the commodity.
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