A metal core PCB (MCPCB) swaps part of the dielectric stack for a metal base plate - usually aluminum, sometimes copper - that pulls heat out of LEDs, MOSFETs and power converters dozens of times faster than FR-4 ever could. Lower junction temperature means more lumens per watt, longer capacitor life and fewer field failures.
Xianglong Circuit produces single to 4-layer MCPCBs on 1.0-3.0 mm aluminum or copper bases, with thermally conductive dielectrics from 1.0 up to 8 W/m-K, 1-6 oz finished copper, thermal vias where double-sided cooling is needed, and machining for COB pockets, countersinks and edge connectors. Boards are built, routed and tested on the same ISO 9001 certified lines as our rigid FR-4 production, so mixed-technology projects stay under one quality system.
Typical applications include LED lighting engines, automotive headlight drivers, power supplies, solar inverters and motor controllers - exactly the product families our Dongguan plant has run since 2021.
Send Gerber plus your power dissipation targets; we will propose the dielectric, base thickness and copper weight, confirm thermal resistance in DFM, and quote within 24 hours.
| Layer count | 1 - 4 layers |
| Base plate | Aluminum 1.0-3.0 mm / copper base |
| Dielectric conductivity | 1.0 - 8.0 W/m-K |
| Copper weight | 1 - 6 oz finished |
| Min line / space | 8 mil / 8 mil (standard thermal stack) |
| Thermal vias | supported on 2-4 layer builds |
| Machining | COB pockets, countersink, edge features |
| Surface finish | ENIG, HASL, OSP |
Aluminum covers most LED and power designs at friendly cost; copper base (about 4x the conductivity) is for extreme density or RF-power hybrids. Tell us the watts to dissipate and board size and we will run the thermal budget for you.
1-2 W/m-K handles typical LED drivers; 3-8 W/m-K suits dense COB arrays and automotive headlights. Higher conductivity costs more per square meter, so we size it from your actual dissipation in DFM.
Yes - 2 to 4 layers with thermal vias and blind structures, plus selective lamination where only one zone needs the metal base.
We assemble MCPCBs in-house: SMT for LEDs and drivers, wave or selective soldering for through-hole magnetics, AOI plus functional burn-in on request. Turnkey sourcing included.
