Coupons
Help
  • FAQ
    browse most common questions
  • Live Chat
    talk with our online service
  • Email
    contact your dedicated sales:
0

OSP Aluminum PCB Manufacturing Insights

Aluminum core boards finished with OSP deliver cost-effective thermal performance and flat coplanarity for high-power SMT assembly.

Typical Specification Range

26k8fk-compress
Parameter Typical Range
Layer count1-2 layers
Material typeAluminum substrate with dielectric film
Surface finishOSP
Thickness0.8mm to 3.0mm
Solder maskWhite
Copper thickness1oz to 3oz
Special featuresThermal vias, edge protection, aluminum base heatsinking

Manufacturing Process Insights

OSP aluminum PCB production starts with lamination of aluminum base to dielectric and copper foil under controlled pressure.

Drilling uses specialized parameters to prevent metal smear and burring at interfaces.

Copper plating follows with enhanced cleaning to ensure reliable PTH connections before solder mask.

OSP is applied after mask to create thin organic layer on copper pads. Edge protection prevents galvanic corrosion between aluminum and copper.

Process controls focus on minimizing aluminum oxidation and verifying OSP film uniformity for consistent solderability.

Manufacturing Order Profile

Order Quantity Order Proportion Estimated Price Level Typical Lead Time
Prototype (<=30 pcs) 51% From $1 From 1 day
Small volume (30-200 pcs) 28% From $20 From 1 day
Mass production (>200 pcs) 21% From $70 From 1 day

Manufacturing Challenges & Process Optimization

Aluminum Edge Oxidation
Exposed aluminum edges oxidize quickly after routing when panels enter OSP chemical lines.
High thermal conductivity of aluminum accelerates oxide formation during wet processes compared to standard FR-4.
Oxidation degrades thermal conductivity at edges and risks long-term corrosion that reduces product reliability under thermal cycling.

Apply protective coating immediately after routing to seal aluminum edges.
Minimize queue time between routing and OSP to under two hours with dedicated production flow.
Use enhanced visual and cross-section inspection to verify edge protection effectiveness.

View Exact Order Case

OSP Film Uniformity
OSP coating thickness varies across aluminum core panels due to thermal mass differences.
Aluminum dissipates heat faster than copper traces affecting OSP chemical reaction consistency.
Inconsistent OSP causes variable solder wettability resulting in SMT defects and reduced assembly yield.

Adjust OSP bath parameters and temperature specifically for metal core substrates.
Add targeted pre-heating and solution agitation to stabilize panel surface temperature.
Conduct coupon solderability testing from each batch to confirm OSP performance.

View Exact Order Case

Design Considerations

Stackup Design
Select thin dielectric between copper and aluminum core for optimal heat transfer. Account for metal core effect on impedance calculations. Limit layer count to maintain registration and overall manufacturability.
Via Strategy
Material Selection
Surface Finish
design-aluminum-pcb-compress

Related Products

Common Applications

PCB Solution for Power Supply

Maximize power density and safety with AIVON’s specialized power supply PCBs. Engineered to handle high currents and thermal loads, our designs feature thick copper, thermal vias, and strict high-voltage isolation. We ensure superior efficiency and robust stability for applications ranging from chargers to industrial converters.

PCB Solution for Industrial Control

AIVON engineers rugged PCBs for industrial control systems demanding unwavering reliability in harsh environments. Featuring high-Tg materials, heavy copper, and conformal coatings, our solutions withstand extreme heat and vibration. We ensure superior signal integrity and long-term stability for PLCs, robotics, and drives, maximizing your operational uptime.

PCB Solution for LED Lighting

Maximize LED performance with our specialized metal-core PCBs (MCPCBs), engineered for superior thermal management in high-power lighting systems. We ensure extended lifespans for commercial applications, while our versatile flexible PCBs enable innovative, complex geometries. Achieve peak efficiency and design freedom with our advanced solutions.

Real Production Records

Order ID PCB Type Layers Dimensions Solder Mask Surface Finish Quantity Action
Loading...

View More Engineering Resources

Why Choose AIVON for OSP Aluminum PCB?

AIVON produces OSP Aluminum PCB with controlled oxide thickness, stable thermal bonding, and strict surface cleanliness, ensuring uniform solderability, efficient heat dissipation, and consistent high-yield production quality.

Quote Aluminum PCB Now
Aluminum PCB Thermal Vias: Design Rules and Best Practices

Aluminum PCB Thermal Vias: Design Rules and Best Practices

Master PCB thermal vias in aluminum PCBs with proven design rules for size, placement, density, and filling. Reduce thermal resistance, prevent hotspots, and optimize heat flow in high-power LEDs, power electronics, and automotive systems. Expert best practices for reliable manufacturing and superior thermal performance.

Read More
Aluminum PCB Manufacturing Defects: Identification, Prevention, and Solutions

Aluminum PCB Manufacturing Defects: Identification, Prevention, and Solutions

Discover common aluminum PCB manufacturing defects like delamination, etching issues, and solder mask failures. Learn expert identification methods, root causes, prevention strategies, and real-world solutions to boost yield and reliability in high-power electronics.

Read More

2026 AIVON.COM All Rights Reserved
Intellectual Property Rights | Terms of Service | Privacy Policy | Refund Policy