Arguna CF – Mạ Bạc tinh khiết cho linh kiện điện tử
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The fine silver high-speed electrolyte
ARGUNA® CF is a fine silver electrolyte for the fast deposition of satin to semi-bright coatings with excellent bonding, soldering and adhesive properties.
ARGUNA® CF is used in high-speed equipment for the selective deposition of fine silver (flow and spray lines, jet plating, spot plating). Maximum applicable current density and plating efficiency mainly depend on the electrolyte agitation at the parts, i. e. on the flow velocity in the plant. High flow velocities allow the application of high current densities, high plating speeds can be reached in this way. For making up a new electrolyte, no free cyanide is required. Immersion silver plating can be effectively inhibited with ARGUNA® Pre-dip 600, which can be used in the production process prior to the silver electrolyte or it can be directly added to the electrolyte.
Electrolyte characteristics
Electrolyte typeWeakly alkaline
Metal content120 g/l Ag
pH value8.3 (8.0 - 8.6)
Operating temperature75 (65 - 75) °C
Current density range30 - 100 A/dm²
Plating speed0.3 - 1.0 μm/s
Anode materialMMO (type PLATINODE® 167 or 177)
Electrical conductivity>50 m*(Ω*mm²)-1
Weakly alkaline
120 g/l Ag
8.3 (8.0 - 8.6)
75 (65 - 75) °C
30 - 100 A/dm²
0.3 - 1.0 μm/s
MMO (type PLATINODE® 167 or 177)
>50 m*(Ω*mm²)-1
Coating characteristics
CoatingFine silver
Purity99.9 wt.% Ag
Colour of depositWhite
BrightnessSatin
Hardness100 - 130 HV as plated
Max. coating thickness20 μm
Fine silver
99.9 wt.% Ag
White
Satin
100 - 130 HV as plated
20 μm
Advantages
- High-speed electrolyte for the selective deposition of fine silver
- No free cyanide in a new makeup
- For reel-to-reel plating using flow or spray technologies
- Semi-bright coatings
- Very good bonding, soldering and adhesive properties
Applications
- Contact surface for semiconductors and electrical components
- Leadframe packaging for soldering, bonding and adhesive applications
Umicore is a global materials technology and recycling group, with about 10,000 employees and a turnover of € 10.4 billion in 2015. Umicore generates the majority of its revenues and dedicates most of its R&D efforts to clean technologies, such as emission control catalysts, materials for rechargeable batteries and recycling. Umicore’s overriding goal of sustainable value creation is based on an ambition to develop, produce and recycle materials in a way that fulfils its mission: materials for a better life.