Kingdta provides complete turnkey aluminum base PCBA service — from aluminum PCB fabrication through SMT component assembly to functional testing. Our aluminum PCBA is widely used in LED lighting, LED driver circuits, and power electronics where thermal management is the primary design driver.
Aluminum Base PCBA: Assembly Process
Assembling components on aluminum-core PCBs requires specialized processes compared to standard FR-4 assembly. The aluminum base acts as a heat sink, which means the board reaches thermal equilibrium differently during reflow soldering. Kingdta uses optimized reflow profiles for aluminum substrates to ensure complete solder joint formation without thermal damage to components.
Custom fixtures are used to hold aluminum PCBs flat during reflow, as the differential thermal expansion between the aluminum base and copper circuit layer can cause warpage at reflow temperatures. Our fixtures maintain board flatness to within 0.3mm across the panel during reflow.
LED assembly on aluminum PCBs requires particular attention to LED placement accuracy and solder paste volume. Insufficient solder under LED packages creates thermal resistance that defeats the purpose of the aluminum substrate. We use optimized stencil apertures and paste volumes for LED packages to ensure maximum thermal contact.
Technical Specifications
Key Advantages
Optimized LED Assembly
Specialized stencil apertures and paste volumes ensure maximum thermal contact under LED packages.
Custom Aluminum PCB + Assembly
In-house aluminum PCB fabrication and assembly — single-source turnkey service with no supplier coordination.
Thermal Performance Verification
Thermal resistance measurement available to verify LED-to-substrate thermal contact quality.
High-Volume Capability
7 SMT production lines support high-volume LED driver and lighting assembly production.
Outdoor Protection
Conformal coating and potting for outdoor LED fixtures and waterproof LED driver assemblies.
LED Testing
Forward voltage, luminous flux, and color temperature testing for LED assemblies.
Where It's Used
LED Street Lighting
Street light modules, flood light boards
Commercial Lighting
High-bay fixtures, panel light drivers
Automotive LED
Headlight modules, DRL assemblies
UV LED
UV curing, sterilization, horticulture
LED Drivers
Constant current drivers, dimmable drivers
Industrial Lighting
Explosion-proof fixtures, work lights
Display Backlighting
LCD backlight modules, signage
Consumer LED
Bulbs, downlights, strip light modules
Why Choose Kingdta for Aluminum Base?
- In-house aluminum PCB fabrication + SMT assembly — true single-source turnkey service
- Optimized reflow profiles and custom fixtures for aluminum substrate assembly
- LED-specific stencil design for maximum thermal contact under LED packages
- Thermal resistance measurement and LED performance testing
- Conformal coating and potting for outdoor and waterproof LED applications
- ISO 9001:2015 certified with full traceability from raw material to finished assembly
Frequently Asked Questions
Can you assemble both LED packages and driver ICs on the same aluminum PCB?
Yes. We assemble LED packages, driver ICs, passive components, and connectors on aluminum PCBs in a single SMT pass. The aluminum substrate handles heat from both the LEDs and driver components.
Do you offer waterproof potting for outdoor LED assemblies?
Yes. We offer potting with silicone and polyurethane compounds for outdoor LED assemblies requiring IP65 or higher protection. Potting is applied after assembly and testing, with connectors masked to remain accessible.