What is MCPCB?
The MCPCB (Metal Core PCB) is a PCB by metal core and copper to laminate which has good heat dissipation. In general, MCPCB board is composed of three layers which are the copper foil, the insulating layer and the metal-clad layer. Compared with FR4, the metal core PCB can minimize thermal resistance, which makes it has excellent thermal conductivity.
Types Of MCPCB Board
Classify by layer counts
Single Sided MCPCB Board
Single sided MCPCB board is the most common type. Compared with other types of metal core PCB board, its process is simple and its application is particularly extensive, often used in LED lighting products. It consists of three parts: the copper foil, the insulating layer and the metal-clad layer.
2 Layer MCPCB Board
2 Layer MCPCB board can layout components on both sides. The structure is relatively complex and consists of five structures: The circuit layer, the dielectric layer, the aluminum-clad layer, the dielectric layer, and the circuit layer. There are more resin filling processes and plating processes in MCPCB fabrication, which require twice drillings.
Multilayer MCPCB Board
In the high-performance power supply industry, multilayer MCPCB board are made of multilayer thermally conductive dielectrics. These structures have one or more layers of circuitry buried in a dielectric, with blind vias used as thermal vias or signal paths.
Classify By Material
Flexible MCPCB Board
One of the latest developments in metal core PCB is the flexible dielectric. These materials provide excellent electrical insulation, flexibility and thermal conductivity. When applied to flexible MCPCB board, the product can be realized in various shapes and angles, and can be bent without cracking. Cost savings on expensive fixtures, cables and connectors.
Copper Core PCB
Copper Core PCB is copper metal core PCB, The heat dissipation of the copper core PCB is very good, and it is suitable for high-frequency circuits, as well as heat dissipation of precision communication equipment and architectural industries.
Iron Core PCB
Iron Core PCB metal clad layer is iron. The hardness of the iron substrate is much greater than the manufacturing process and difficulty of the aluminum substrate, It’s used in high-end motors, high-end product equipment and motors.
MCPCB Products
Feature Of MCPCB PCB Board
Good heat dissipation
The MCPCB(Metal Core PCB) can minimize the thermal resistance, has smaller thermal resistance, and the thermal expansion coefficient is closer to that of copper foil. Make the MCPCB board have excellent thermal conductivity and heat dissipation performance, reduce the operating temperature of the module and prolong the service life.
High current carrying
With the same thickness and the same line width, the MCPCB board can carry higher current
Good machinability
MCPCB board can replace ceramic substrate, better mechanical durability. At the same time, high strength and toughness can realize large-area printed board manufacturing and component placement.
Good electromagnetic wave shielding
In order to ensure the performance of electronic circuits, some components in electronic products need to prevent radiation and interference of electromagnetic waves. The MCPCB(Metal Core PCB) can act as a shielding plate to shield electromagnetic waves.
Environmental friendly
The aluminum of MCPCB board material used as the raw material is non-toxic and recyclable. Comply with RoHs requirements.
Light weight
Aluminum of metal core PCB has amazing light weight with excellent strength and elasticity, which is very convenient.
Fabrication Capabilities
| Item | Technical Parameters | Specification |
| Min Circuit Line Width/Space | 4/4 mil | Finished Copper Thickness 1 oz |
| Min MCPCB Pad Ring of Via | 4 mil | Distance between hole edge to ring outskirt |
| Min MCPCB Pad Ring of PTH | 6 mil | Distance between hole edge to ring outskirt |
| Min MCPCB Via Size | 8 mil | Board Thickness < 1.2 mm |
| Min MCPCB Thickness of Double sided | 0.5 mm | Final Board Thickness |
| Min MCPCB Thickness of Multilayer | 0.5 mm | Final Board Thickness |
| Max MCPCB Thickness | 5.0 mm | Final Board Thickness |
| Max MCPCB Dimension | 1200×600 mm | Single and Double Sided PCB |
| Space Between Line to Board Edge | 10 mil | Milling of Outline |
| Max MCPCB Layers | 8 Layer | |
| MCPCB Solder Mask Color | Green,Black,Blue,Red,white,Yellow, | |
| MCPCB Silkscreen Color | White,black,yellow | |
| MCPCB Surface Finishing | HASL,ENIG,ENEPIG,ImAg,ImTin,OSP, | |
| Max Finishing Copper Thickness | 10 oz | |
| Dielectric Thickness | 4 mil | |
| MCPCB Material | Aluminium 1100,3003,5052,6061. Copper, Iron | |
| Special Technology | Blind&Buried MCPCB, T-Slot, Countersink hole |
How To Make MCPCB Board?
CNC Drilling
The first step of MCPCB(Metal Core PCB) manufacturing is NC drilling, the drills are CNC-controlled following the Gerber drilling file.
Outer Layer Imaging
Photosensitive dry film is laminated on both sides of working panel, then exposure and development of the dry film to get the external circuitry.
Solder Mask And Silkscreen Printing
Solder mask coating will protect the copper and trace from mechanical and environmental damage. After the application of the solder mask printed, the legends are added onto the panel through screen printing of identification ink which is available in different colors.
Surface Finish
The excellent surface finished of Metal Core PCB should be solderable,reliable,cost effective and good shelf life.
Hot Air Solder Leveler(HASL), ENIG, and OSP are the most common surface finish because of their good electrical
Milling And V-CUT
The MCPCB board has been cycling in the final process of milling, CNC machine follows the MCPCB outline gerber to mill and V-CUT.
MCPCB Circuit Testing
The last step of MCPCB board manufacture is electronic testing to ensure all boards are reliable before outgoing. General samples and small batches of MCPCB boards are tested with flying probes, which can reduce the cost of making test frames, then shorten the delivery cycle. The mass-production MCPCB boards are tested by test tooling.
Vacuum Package
All the good MCPCB boards will be small vacuum packaging and carton packaging. And then ship it all over the world through UPS, DHL and Fedex Express.
MCPCB Board Application
- Audio equipment: input, output amplifiers, balanced amplifiers, audio amplifiers, preamplifiers, power amplifiers, etc.
- Power supply equipment: switching regulator, DC/AC converter, SW regulator, etc.
- Communication electronic equipment: high-frequency amplifier `filter appliance` sending circuit
- Office automation equipment: motor drives, etc.
- Automobile: electronic regulator, igniter, power controller, etc.
- Power module: converter, solid state relay, rectifier bridge, etc.
- LED Lighting: With the promotion of energy-saving lamps, MCPCBused in LED lights have also begun to be used on a large scale
Why choose us?
King Sun is a leading MCPCB manufacturer, our Metal Core PCB uses reliable aluminum core with below advantages:
- Excellent thermal conductivity
- Excellent insulating ability
- Excellent dimensional stability
- Excellent mechanical strength
- Lower heat expansibility
- Lower operating temperature
- Increase power density
- Reduce the numberof interconnects
- Extend the life of dies.
We also make PCB prototypes with a very fast turnaround lead time:
| Layer Count | Standard Lead Time | Quick Turn Around |
| 1 Layer | 4-5 DAY | 24 Hours |
| 2 Layer | 7-8 DAY | 96 Hours |