Aurexel DP

Aurexel DP is a high-performance, cyanide-free immersion gold (Au) plating solution designed for applications requiring reliable surface finishes on Ni-P (nickel-phosphorus) films. It enables the formation of a dense, uniform gold thin film with excellent solder wettability and consistent precipitation uniformity, making it ideal for advanced electronic and semiconductor components.

  • Cyanide-free formulation – safer and more environmentally responsible
  • Form dense and uniform Au film on Ni-P substrate
  • Excellent solder wettability for improved assembly performance
  • Superior film consistency and surface appearance
  • Suitable for applications in PCBs, connectors, and semiconductor packages
Processing time and plating film thickness
Processing time and plating film thickness
Surface condition of Aurexel DP film
Surface condition of Aurexel DP film
Products Temperature（℃） pH Features
Aurexel DP 50～60 7.0～7.1 Cyanide-free
Aurexel MD
Au bump with φ10μm and height 10μm
Cross section after FIB processing

Aurexel MD is an advanced electrolytic gold plating solution engineered for high-performance applications in electronics, semiconductors, and precision components. Developed by Kanto Corporation, it ensures exceptional purity (99.99% Au), superior adhesion, and unmatched corrosion resistance, making it ideal for demanding industrial environments.

  • Cyanide-free electroless Au plating solution and capable of forming micro-bumps.
  • Capable of treating conditions of neutral pH and low temperature, and excellent operability and safety.
  • Capable of embedding and via sidewall thick plating.
  • Au plating speed is 2μm/hr, and its hardness is 80~90Hk.
Products Temperature（℃） pH Features
Aurexel MD 50～60 7.0～7.5 Cyanide-free
Aurexel FC
Correlation between Ni content and hardness
Correlation between Ni content and hardness
Surface condition of Aurexel FC film
Surface condition of Aurexel FC film
  • Cyanide-free hard Au plating solution for electrodeposition.
  • Good resistance to mechanical wear is obtained by slightly containing Ni in the Au film.
  • Less hardness variation caused by heat treatment.
  • The appearance of the film is lemon yellow.
Products Ni content（wt%） Hardness（Hk） Features
Aurexel FC-103 0.03 200 Solution temperature 30℃ pH 7.5 Cyanide-free
Aurexel FC-104 0.5 240