Vàng Auruna 559 Nguyên Chất Cho Linh Kiện Điện Tử

    Thương hiệu: UMICORE
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    Neutral high-speed electrolyte for selective gold-plating

    AURUNA® 559 is used for the very fast deposition of semi-bright to satin fine gold coatings with excellent bonding and soldering properties. The neutral fine gold electrolyte was specifically developed for use in high-speed equipment for selective goldplating (spray and flow lines, jet and spot plating).

    Maximum applicable current density and therefore plating speed as well essentially depend on the electrolyte agitation at the parts (flow velocity), i.e. on the type of equipment used. A high flow velocity allows a high plating speed. For achieving good adhesion, on nickel and nickel alloys in particular, the parts should be strike gold-plated in the AURUNA® 580 gold strike electrolyte. The layers exhibit outstanding bondability and excellent temperature resistance. They are ductile and smooth and light-yellow even at high layer thickness (greater than 20 μm).

    Electrolyte characteristics

    Electrolyte type

    Neutral

    Metal content

    16 (14 - 16) g/l Au

    pH value

    7.5 (7.3 - 7.5), measured at 25 °C

    Operating temperature

    70 (70 - 75) °C

    Current density range

    10 - 25 A/dm²

    Plating speed

    Approx. 6 - 15 μm/min

    Anode material

    Pt-Ti (type PLATINODE® Pt/Ti)

    Coating characteristics

    Coating

    Fine gold

    Purity

    99,9 wt. % Au

    Colour of deposit

    Light yellow

    Brightness

    Silk-matt to semibright

    Hardness

    100 HV

    Max. coating thickness

    Approx. 19 g/cm³


    Advantages

    • Satin fine gold coatings
    • For high-speed applications
    • High current densities possible (10 – 25 A/dm²)
    • High plating speeds (up to 15 μm/min)
    • Excellent bonding and soldering properties
    • The coatings are RoHS compliant
    • Classification according to ASTM B-488-01 Type I-II, Code C-D

     

    Applications

    • Semiconductors







    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.

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    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.