Semiconductors » Surface Finishing (pcb fabrication)

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Used Surface Finishing (Pcb Fabrication)

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Overview

Surface finishing in PCB fabrication covers the chemical and plating processes that protect copper traces and provide reliable solderable surfaces. Common finishes include HASL, ENIG, immersion tin/silver, and OSP, chosen for solderability, shelf life, cost and assembly requirements. Finishing lines range from benchtop chemistries to automated plating and coating lines with bath management, filtration and process controls to meet RoHS, reliability and lifetime targets.

FAQ

What should I check when buying a used PCB surface finishing line?

Verify which finishes the line supports (ENIG, HASL, OSP, immersion), condition of tanks, pumps and heaters, chemical management and filtration systems, maintenance records, available spare parts and control software. Confirm compliance with safety and environmental rules.

How do I arrange safe shipping for finishing equipment?

Drain and neutralize all chemicals, clean tanks, tag electrical and control components, crate fragile items, and hire a carrier experienced with industrial process equipment. Prepare hazardous-material documentation and insurance for transit.

What routine maintenance keeps a finishing line reliable?

Regularly test and top up bath chemistry, replace filters and seals, clean tanks and heaters, inspect pumps and heaters, calibrate controllers, document bath life and waste disposal, and follow OEM service intervals to prevent contamination and process drift.