AURUNA® 530 Gold Cobalt Electrolyte

Electrolyte for abrasion-resistant, low-corrosion hard gold layers

AURUNA® 530 is a weakly acidic hard gold electrolyte with high current efficiency. Its essential property is its high resistance to abrasion and corrosion.

By choosing advantageous operating conditions (pH-value and temperature), printed circuit boards can be treated in a way which is particularly friendly to resists and lacquers, thus avoiding the lifting of masking materials.

With a gold content of at least 3 g/l, the desired high current efficiency can be reached even with sensitive resists. The plating speed is approx. 0.29 μm/min at 1 A/dm² and 35 °C.

Advantages

• Weakly acidic hard gold electrolyte based on gold-cobalt with high current efficiency
• Good compatibility with resists, like dry film and soldermask
• Low contact resistance
• High abrasion resistance
• Good thickness distribution
• Easy maintenance and high stability of the electrolyte
• Low-pore layers with good corrosion resistance

Applications

• Contacts on plug-in cards
• Printed circuit boards