LED substrate

The application of LED has been popularized because of its high brightness, long life, and energy saving and environmental protection characteristics, but the corresponding heat is still relatively large during work, and the heat dissipation of its power is the key to reliable work, in order to increase the effect of heat dissipation , Aluminum substrate is usually used to increase heat dissipation. The structure of the substrate consists of a copper layer, an insulating layer, and an aluminum plate. Compared with the commonly used substrate, an aluminum plate is added. Generally, 1mm to 3mm aluminum plate is used because it is relatively convenient to process. Most of the board layers used are single-layer, and the vias cannot be metalized. If it is necessary to connect to the aluminum plate, indirect methods can be used, such as crimping the copper pillar to the aluminum plate on one side and welding the copper layer on the other side. for reference only!