Plating builds the conductive copper in holes and on the surface. Throwing power, thickness distribution and bath control determine whether vias are reliably filled and barrels are void-free.
Overview
Understanding pcb plating and metallization means understanding both the process chemistry/mechanics and the machines that control it. Here is what matters. A thin electroless copper layer first makes the drilled holes conductive; electrolytic copper plating then builds thickness in the barrels and on the surface (panel and pattern plating). Bath chemistry, current density and agitation control uniformity and throwing power.
Where It Fits in the Process
Plating follows via formation and hole preparation and precedes the outer-layer image, etch and solder mask steps.
Equipment Categories Involved
Key Considerations
Vertical and horizontal plating lines differ in throwing power and footprint; pattern plating reduces etched copper but adds process complexity.
Standards and Compliance
Designs and processes in this area commonly reference:
- IPC-6012
- IPC-4552 (ENIG)
- IPC-TM-650 (test methods)
Selection and Comparison
Key trade-offs when specifying for pcb plating and metallization:
- Panel plating vs. pattern plating
- Vertical vs. horizontal plating lines
- Electroless copper vs. direct metallization
Recommended Equipment from acfindustry.com
The following machines from our catalog support the processes discussed above:
Black Hole Direct Metallization Line
- Model: ACF-PL-01
- Sub-process: Electroless Copper
- Automation: Inline / automatic
Pre-Plating Treatment Line
- Model: ACF-PL-03
- Sub-process: Surface Activation
- Automation: Inline / automatic
Vertical Continuous Plating (VCP) Line, 20 Cells
- Model: ACF-PL-02
- Sub-process: Electroplating
- Automation: Inline / automatic
Related Topics
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