Electric gold - tin plating Dain Goal Star V
Electroplated tin
Gold-tin alloy shows a eutectic point at an Au/Sn composition of 80/20 (wt%), with a melting point of 280°C. This alloy is non-oxidizing, has good solderability, low resistivity, and improved creep characteristics, lubrication, and wear resistance, making it suitable as a high-temperature joining material for high-frequency devices such as mobile phones, optoelectronic packages, mounted components, optical communication components, as well as for protective element materials, sliding parts, and decorative items. Many gold-tin alloy materials are produced in the form of ribbons or pellets metallurgically, but issues have arisen that make them difficult to apply to narrow pitches associated with high-density mounting. This plating bath allows for barrel plating of micro parts, enabling the production of a uniform eutectic composition plating film.
basic information
【Features】 - The melting start temperature of the alloy plating film shows a stable value of 280±1℃ across a wide composition range (Au: 66-87 wt%). - The composition of the gold-tin alloy plating film can achieve a wide range by controlling the metal concentration ratio in the bath, in addition to the eutectic composition of Au/Sn=80/20 (wt%). - In terms of the appearance of the plating film, as the gold content in the film increases beyond the eutectic composition, it exhibits a gold color and glossiness. - An insoluble anode of platinum-plated titanium is used for the anode, which also minimizes the oxidation degradation of Sn and demonstrates excellent long-term stability. - Cyanide gold is used in the gold salt, but it is a low-cyanide plating bath that does not contain other free cyanide compounds. ● For other functions and details, please contact us.
Price information
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Applications/Examples of results
【Applications】 〇 High-temperature bonding materials, semiconductor packages, wafer bump electrodes, optoelectronic components, aircraft parts, sliding parts, decorative items, etc. ● For other functions and details, please contact us.
