Common in LED lighting products. There are positive and negative sides, the white side is welded LED pin, the other side is aluminum color, generally daub heat conduction paste and heat conduction part contact. There are ceramic substrates and so on.

Aluminum substrate is a kind of metal base copper clad plate with good heat dissipation function. Generally, a single panel is composed of three layers, which are respectively circuit layer (copper foil), insulation layer and metal base. For high-end use, there are also double panels designed for circuit layer, insulation layer, aluminum base, insulation layer, circuit layer. A few applications for multilayer board, can be made of ordinary multilayer board and insulation layer, aluminum base bonding.

LED aluminum substrate is PCB, is also the meaning of printed circuit board, but the material of the circuit board is aluminum alloy, before our general circuit board material is glass fiber, but because the LED heat is larger, so the CIRCUIT board used by LED lamps is generally aluminum substrate, can conduct heat fast, other equipment or electrical circuit board or glass fiber board!

Aluminum base plate (metal base heat dissipation plate (including aluminum base plate, copper base plate, iron base plate)) is low alloyed Al-Mg-Si high plastic alloy plate (structure see the following figure), it has good thermal conductivity, electrical insulation performance and mechanical performance, aluminum base plate compared with the traditional FR-4, using the same thickness, the same line width, Aluminum substrate can carry higher current, aluminum substrate voltage up to 4500V, thermal conductivity is greater than 2.0, in the industry to aluminum substrate.

● Adopt SMT technology;

● In the circuit design scheme for the thermal diffusion is very effective treatment;

● Reduce the operating temperature of the product, improve the power density and reliability of the product, prolong the service life of the product;

● Reduce the volume of products, reduce the cost of hardware and assembly;

● Replace fragile ceramic substrate for better mechanical endurance.

structure

Aluminum base copper clad board is a kind of metal circuit board material, which is composed of copper foil, thermal insulation layer and metal substrate. Its structure is divided into three layers:

Cireuitl.Layer line Layer: equivalent to the copper clad board of ordinary PCB, line copper foil thickness loz to 10oz.

DielcctricLayer: Insulation layer is a layer of low thermal resistance and heat conduction insulating material. Thickness :0.003" to 0.006" in. This is the core technology of the aluminum-based copper clad sheet, which is UL certified. BaseLayer: A metal substrate, usually aluminum or optional copper. Aluminum-based copper clad plate and traditional epoxy glass cloth laminate.

PCB material has incomparable advantages compared with other materials. Suitable for power module surface mount SMT.