What are the types of aluminum substrates of health care PCB manufacturers
At present, the commonly used LED aluminum substrate has two sides, the white side is used for welding LED pins, and the other side shows the true color of aluminum. The thermally conductive parts are in contact with each other. Generally speaking, a single panel consists of a three-layer structure. Of course, those who know it must know it, and only by understanding these can they be better selected and used. Aluminum substrate is a metal-based copper clad laminate with good heat dissipation function. Let’s take a look at the types of PCB aluminum substrates of health care PCB manufacturers.
Flexible Aluminum Substrate
One of the new developments in IMS materials is flexible dielectrics, which have excellent electrical insulation, flexibility and thermal conductivity. When applied to flexible aluminum, the product can be formed into a variety of shapes and angles, eliminating the need for expensive clamp cables and connectors. Common are two- or four-layer subassemblies made of conventional FR-4, bonded to an aluminum substrate with a thermal dielectric to help dissipate heat, increase stiffness and act as a shield. In the high-performance power market these structures have one or more layers of circuitry buried in a dielectric, with blind vias used as thermal vias or signal paths.
Through hole aluminum substrate
In complex structures, a layer of aluminum can form the “core” of a multilayer thermal structure, which is pre-plated and filled with a dielectric prior to lamination. Through-holes are plated through gaps in aluminum to maintain electrical isolation, which is considered an umbrella term for PCBs dedicated to the LED industry due to its good thermal conductivity.
All in all, the types of PCB aluminum substrates of pcb manufacturers include flexible aluminum substrates and through-hole aluminum substrates. For applications, there are also double-sided designs of circuit layer, insulating layer, aluminum base, insulating layer, and circuit layer structure. Few applications are multi-layer boards, which can be laminated with ordinary multi-layer boards plus insulating layers and aluminum substrates. Aluminum substrates have excellent heat dissipation, good machinability, dimensional stability and electrical properties, and are widely used in hybrid integrated circuits, automobiles, office automation, large power electrical equipment, power equipment and other fields.
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