Brief classification and application of metal core PCB

    With the developing of technology, the size of electronic products become smaller and smaller with much more functions. As a result, more and more components should be equipped on the PCB with more and more power consumption, so better heat dissipation is very important as overheating of the circuit board components may cut down the reliability of the equipment. Here came out the metal core PCB. Gold Phoenix is a professional supplier of metal core PCB. The metal Core PCB means the base material for PCB is metal, but not normal FR4/CEM3, etc. The heat dissipation of metal core PCB is improved through affixing the common PCB to another metal with better thermal conductivity.
 

    The metal core PCB is composed of metal substrate, such as aluminum, copper, iron and silicon steel plate, insulating media with high thermal conductivity and copper foil. The main difference between a FR4 board and metal core PCB is the thermally conductive dielectric material in the metal core PCB. This acts as a thermal bridge between the IC components and metal backing plate. Heat is conducted from the package through the metal core to an additional heat sink. On the FR4 board the heat remains stagnant if not transferred by a topical heat sink.

    The metal core PCB with both iron base and silicon steel base are excellent in electrical properties, permeability, pressurization and high strength and are mainly used in brushless DC motor, tape recorders and intelligent driver. With regard to the magnetic properties, the metal core PCB with silicon steel base is much better than the metal core PCB with iron base.
 

    The basic performance of metal core PCB with copper base is nearly the same as metal core PCB with aluminum base. It can be used in high-power circuits, such as power electronics and automotive electronics as it can carry heavy currents. https://www.goldphoenixpcb.com/html/capabilities/mcpc.html But there are some problems with the metal core PCB with copper base which prevent it from widely applying, such as high density, high value and oxidation.
 

    The metal core PCB with aluminum base is outstanding in electrical performance, heat dissipation, electromagnetic shielding, pressurization and bending properties. It’s mainly used in automobiles, motorcycles, computers, household appliances, communication electronics and power electronics. Among the metal core PCB, aluminum base PCB is the most common one. https://www.goldphoenixpcb.com/html/capabilities/mcpc.html

    There are a lot of advantages with metal core PCB, such as heat dissipation, thermal expansion, and dimensional stability and so on; however, there are also some restrictions in practical application. Due to the Dielectric Layer, during the operating of the circuit system, the temperature should not exceed 140 ° C. In addition ,the temperature should not exceed 250 ℃ ~ 300 ℃ in the manufacturing process which is very important for solder machine. And the thermal conductivity is not perfect. Anyway, metal core PCB is paying an important role in the industry of PCB.