Structure of MCPCB
the most common MCPCB construction consists of the following layers:
1) A metal substrate, typically aluminum. In some applications, a copper substrate is more
Appropriate due to its high thermal conductivity than aluminum (401W/MK versus 237 W/MK)
but more expensive.

2) Epoxy dielectric layer. this is the most important layer in the MCPCB construction as it
Affects the thermal performance, electrical breakdown strength, and, in some cases, the
Solder joint performance of the MCPCB system. the typical thermal conductivity of the
Dielectric layer on a MCPCB is 1W/MK. A higher value is better for good thermal performance.
A thinner dielectric layer is better for thermal performance as well but can negatively impact
the ability of the MCPCB to withstand a high potential test to meet minimum electrical safety
Standards as required in certain lighting markets. the typical dielectric thickness layer is 100m.

3) Top copper layer. A thicker copper layer improves heat spreading into the PCB but may
Pose challenges for PCB manufacturers when fabricating narrow traces or spaces. A copper
Thickness of 1oz (35m) or 2oz (70m) is common.




Aluminum PCB Case: Aluminum PCB Built on 1 W/K
Thermal Conductivity for Motor Driver
(PCB's are custom-made products, the picture and parameters shown are just for reference)

General description
this is a type of single sided metal core PCB built on aluminum base with 1W/MK dielectric
for the application of Motor Drive. It's 1.2 mm thick, black solder mask and gold on pads.
the base material is used from ILM brand, entire board supplying 10 PCBs per panel. Each
Connected by v-cut line. They're fabricated per IPC 6012 Class 2 using supplied Gerber data.
Each 20 panels are packed for shipment. 

Features and benefits
Effective heat dissipation reduces the operating temperature of the module and prolongs
the service life;
Optimization combination of power circuit and control circuit;
Reduce the operating temperature of the equipment;
Improve the power density and reliability of the device;
Meeting your PCB needs from prototype to mass production;
Powerful PCB capabilities support your research and development, sales and marketing;
Make delivery on time. Higher than 98% on-time-delivery rate;
UL recognized and RoHS Directive-compliant.


Application
Preamplifier;Motor driver; Insulation heat conduction of semiconductor devices; All kinds
of energy-saving LED lights


Parameter and data sheet