Insulation layer in Al PCB Aluminum PCBs, compared to traditional FR4 PCBs, can carry higher current with the same thickness and line width. The key component of aluminum PCBs is the insulation layer, which provides adhesion, insulation, and thermal conductivity. The structure of a single-sided aluminum PCB includes a circuit layer, an insulating layer, and a metal layer. For more complex applications, there are two-layer and multilayer aluminum PCBs. The insulation layer's thermal conductivity is crucial for heat dissipation, which helps reduce device operating temperatures, increase power load, reduce volume, extend service life, and improve power output.
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