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Home > Knowledge Base > ENIG vs HASL vs OSP Surface Finish | Huaqiu PCB

ENIG vs HASL vs OSP Surface Finish | Huaqiu PCB

2026-09-23  |  Views

Choosing a surface finish affects solderability, shelf life and cost:

  • HASL: lowest cost, poor for fine pitch
  • ENIG: flat, gold-plated, ideal for BGA
  • OSP: budget flat option, limited reflow cycles
  • Immersion silver/tin niche uses

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