Aluminium and copper base PCBs
Metal-core boards move heat away from LEDs and power devices through a thin dielectric bonded to an aluminium or copper base.
Our metal-core construction is a UL Recognized Component, type HSX-L under File E509426.
- Base metal
- Aluminium, copper
- Minimum base thickness
- 0.50 mm
- Dielectric thickness
- 60–200 µm
- Copper weight
- 17–102 µm (0.5–3 oz)
Metal-core capability
| Base metal | Aluminium, copper |
|---|---|
| Minimum base thickness | 0.50 mm |
| Dielectric thickness | 60–200 µm |
| Copper weight | 17–102 µm (0.5–3 oz) |
| UL | File E509426, type HSX-L, V-0, 130 °C MOT |
| CTI | 600 V (PLC 0) |
| Construction | Single-sided |
Why our metal-core boards
UL recognized
Type HSX-L is UL Recognized with flammability rating V-0 and a maximum operating temperature of 130 °C.
High CTI
CTI of 600 V suits mains-powered LED drivers and lighting.
Laser and CNC profiling
Aluminium boards are profiled by CNC router and laser, with V-scoring for panelised assembly.
Typical uses
- LED lighting
- Automotive lighting
- Power supplies and converters
- Motor drives
Maximum values are individual process limits, not a promise that every limit can be combined. A 34-layer, 7-step HDI board is a documented delivered build; projects above this layer count require engineering review.
Explore the builds →HSX / Our factory
The equipment behind the specification.
Original photographs from our Shenzhen factory. Explore the manufacturing process and the equipment used to build and inspect your boards.
LDI imaging
Direct imaging transfers fine circuit patterns onto the panel. Inner-layer, outer-layer and solder-mask exposure are covered by our LDI equipment.
Automatic optical inspection
AOI checks circuit patterns during fabrication. Detected features are reviewed before boards continue through the process.
Electrical testing
Every board is tested for electrical opens and shorts before shipment. The factory has 27 flying-probe testers and three fixture testers.
Questions engineers ask us
Is your aluminium PCB UL certified?
Yes. Our metal-core construction is a UL Recognized Component, type HSX-L under File E509426, rated V-0 with a 130 °C maximum operating temperature. You can look it up in the UL iQ database.
What dielectric thickness should I choose?
Thinner dielectric moves heat better; thicker dielectric gives higher breakdown voltage. We build 60–200 µm and can advise once we know your power and isolation requirements.
Send your design. Let’s build it properly.
Upload Gerber or ODB++, stack-up and quantities. Standard PCB quotes usually take 30 minutes in working hours; HDI, rigid-flex and special materials usually take up to 24 hours.