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Chemical gold

The increasing demand for fine and very fine line boards and the decrease of the packing factor of PCBs causes a growing market for chemical surfaces. Chemical gold is a very planar alternative with excellent oxidation properties. The surface chemical gold is composed of 3 – 5 µm Ni/0.05 – 0.1 µm Au.


  • long shelf life (approx. 12 months)
  • suitable for fine pitch applications
  • totally planar
  • good wettability
  • suitable for press fit applications


  • more expensive than HAL, lead free

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