Metal core PCB, also known as MCPCB, insulated metal substrate (IMS) or heat dissipation PCBS, is one of the most widely used PCBs today. These PCBs have applications in various industrial electronic equipment. There may be some problems that how these PCBs differ from regular PCBs and what their advantages over standard CEM3 or FR4 PCB are.
The basic material used in metal core PCB is metal, not FR4 or CEM3. The most commonly used metals are aluminum which is cheap and has good heat dissipation and transmission capabilities, steel alloys which is harder than other two with low thermal conductivity and copper which has better heat dissipation and transmission capabilities than aluminum and stainless steel, but is expensive. Therefore, the choice about what kind of metal cores should be used will depend on the application where they are used.
According to the position of the metal core and the wiring layer, it can be divided into four basic types, including:
Single-layer MPCB: PCB with a single wiring layer on one side.
Double-layer MPCB: PCB with two wiring layers on the same side.
Double-sided MPCB: there are two wiring layers on each side of these PCBs.
Multilayer MPCB: each of these PCBs has more than two layers.
LED lights: spotlights, high current PCBs, high current LEDs, street safety applications and all applications using LEDs.
Automobiles: power regulators, ignition tools, switching converters, variable optical systems and electric motors for electric and hybrid vehicles.
Power equipment: DC-DC converters, voltage regulators, high-density power conversion and switching regulators.
Audio equipment: balance, input and output, audio, power supply and pre-shielding amplifier.
Other electronic equipment: IC array, semiconductor heat shield, IC carrier chip, solar cell substrate, radiator and semiconductor refrigeration equipment.
Household appliances: flat panel displays, motor controls.
OA equipment: large electronic display substrate, thermal print head and printer driver.
The following advantages of metal core PCB make it an ideal choice for different industrial applications.
High thermal conductivity:
Standard PCB with FR4 and CEM3 has weaker interlayer insulation and lower thermal conductivity. Without proper heat dissipation, the internal temperature may rise to affect internal components. However, the metal PCB made of aluminum has excellent thermal conductivity to solve the problems above to keep the internal safe.
Good dimensional stability:
Metal core PCB shows good dimensional stability compared with FR4 or CEM3 PCB. When the aluminum PCB is heated to a temperature of 30℃ to 140~150℃, its size will only expand between 2.5-3%.
High thermal expansion:
The coefficient of thermal expansion (CTE) is a term to describe the expansion or contraction of a substance under temperature. The CTE of aluminum and copper is higher than that of ordinary FR4 while its thermal conductivity is 0.8~3.0 W/cK.
If you have questions about our metal core PCB production capacity, or the specifications required for your custom project are not listed on this page, please feel free to contact us. We will reply within one workday. We will continue to provide quotation support and design support. Welcome to learn about our production process.