Aluminum PCB

Aluminum PCB Manufacturing Process

Material Selection – Choosing aluminum substrates (e.g., aluminum base with dielectric layer) for effective heat conduction.

Layer Lamination – Bonding a copper layer to the aluminum base, using a dielectric layer for insulation.

Drilling & Plating – Drilling holes for vias and plating them with copper for electrical connections.

Etching & Imaging – Applying photolithography to create precise circuit patterns on the copper layer, followed by etching.

Surface Treatment – Applying surface finishes such as HASL, ENIG, or OSP for better solderability and corrosion resistance.

Testing & Inspection – Conducting thermal, electrical, and mechanical tests to ensure performance and durability.

PCB Fabrication Services

Aluminum PCB

Aluminum circuit board

Instant Quote

Manufacturing Features of Aluminum PCB

Aluminum PCBs feature excellent heat dissipation, durability, and mechanical strength, thanks to their aluminum base. The manufacturing process involves laminating a copper layer onto an aluminum substrate with a dielectric layer for insulation. These PCBs are ideal for high-power applications like LED lighting and automotive electronics, offering enhanced thermal management and reliability in demanding environments.

Applications of Aluminum PCBs

LED Lighting – Used in high-power LED modules, streetlights, and automotive headlights.

Power Electronics – Ideal for power amplifiers, inverters, and battery chargers.

Automotive Industry – Used in engine control units, electric vehicle power systems, and lighting.

Telecommunications – Supports RF applications, base stations, and high-frequency circuits.

Consumer Electronics – Found in audio amplifiers, computer power supplies, and cooling systems.

SCSPCBA’s Aluminum PCB Manufacturing Capabilities

PCB Board Fabrication Capabilities
Aluminum PCB Board Fabrication Capabilities		Aluminum Circuit Board Specifications
Aluminum PCB types	Single-sided, double-sided, single-layer, double-layer, 4-layer, and flex aluminum PCB	Base Thickness	0.5mm–3.0mm
PCB layer quantity	Rigid aluminum PCB: 1, 2, and 4 Flex aluminum PCB: 1	Min. Hole Size	0.2mm
PCB quality level	IPC-A-600 Class 3/2/1	Min. laser drill diameter	0.075mm
Thermal conductivity	1W/mK to 9W/mK	Min. Line Width/Spacing	3mil/3mil
Aluminum PCB material	3003 (pure aluminum) 5052 (Al-Mg alloy) 6061 (Al-Mg-Si alloy) 1100 (pure aluminum)	Thermal Conductivity	1.0–3.0 W/mK
Dielectric material	Polymer filled with ceramic	Solder Mask Color	White, Black, Green
Copper thickness	1oz to 4oz (35μm to 140μm) (Flex aluminum PCB: 0.5oz to 1oz)	Surface finish	ENIG, OSP, LF HASL, immersion tin, immersion silver, immersion gold (Only OSP for flex aluminum PCB)