LED PCB assembly-Hitech Circuits Co., Limited

FR4PCB vs. Aluminum PCB vs. Copper base PCB vs. Ceramic PCB for led headlight

For the PCB boards now in application to LED headlight, there are mainly four kind of materials, FR4 PCB, Aluminum PCB, Copper PCB and Ceramic PCB. It is a good deal to understand the distinctions for these four types PCB. Which PCB you choose depends on the circuit design construction of the headlight. FR4 PCB vs. Aluminum PCB Price Comparison In the cost comparison, the Aluminum PCB is more expensive than FR4, as well as more superior in performance. Thermally conductivity Aluminum PCB has a great capability of thermal conductivity than FR4 which makes them play an important role in [...]

Structure of Aluminum PCB

Aluminum PCBs are aluminum based CCLs (CCL is a type of base material of PCBs). Aluminum PCBs are actually quite similar to FR4 PCBs. The basic structure of Aluminum PCBs is four layered. It consists of a layer of copper foil, a dielectric layer, an aluminum base layer and aluminum base membrane. Copper Foil Layer: the copper layer used is relatively thicker than normal CCLs ( 1oz-10oz). A thicker layer of copper means a larger current carrying capacity. Dielectric Layer: the Dielectric layer is a thermally conductive layer and is around 50μm to 200μm thick. It had a low thermal [...]