Tin-silver-copper ternary alloy electroplating solution and electroplating method
A ternary alloy and tin-plating technology, which is applied in the chemical industry, can solve problems such as difficult production and maintenance, and achieve rapid and complete biodegradation, simple formula, and environmental protection.
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Example Embodiment
[0057] Example 1 (low-speed electroplating)
[0058] The composition of the bath is as follows:
[0059] Tin methanesulfonate 0.18mol / L
[0060] Silver methanesulfonate 0.005mol / L
[0061] Copper methanesulfonate 0.002mol / L
[0062] Hydroxyethyl ethylenediamine triacetic acid (HEDTA) 0.8mol / L
[0063] Thiourea 0.03mol / L
[0064] Alkyl glycoside (APG) 0.003mol / L.
[0065] Bath preparation method:
[0066] After dissolving hydroxyethyl ethylenediamine triacetic acid (HEDTA) and thiourea with deionized water, mix them with alkyl glycosides and stir well. Then add silver methanesulfonate, tin methanesulfonate and copper methanesulfonate respectively, and add deionized water to the required volume. Among them, the preparation method of silver methanesulfonate is: using methanesulfonic acid and silver oxide (Ag 2 O) The reaction is carried out at a reaction temperature of 50-60°C, and the molar ratio of methanesulfonic acid to silver oxide is 5-6. Tin methanesulfonate and copper methanesulfona...
Example Embodiment
[0069] Example 1--1
[0070] The composition of the bath is as follows:
[0071] Tin methanesulfonate 0.18mol / L
[0072] Silver methanesulfonate 0.005mol / L
[0073] Copper methanesulfonate 0.002mol / L
[0074] Hydroxyethyl ethylenediamine triacetic acid (HEDTA) 0.8mol / L
[0075] Thiourea 0.03mol / L
[0076] Alkyl glycoside (APG) 0.003mol / L.
[0077] Bath preparation method:
[0078] After dissolving hydroxyethyl ethylenediamine triacetic acid (HEDTA) and thiourea with deionized water, mix them with alkyl glycosides and stir well. Then add silver methanesulfonate, tin methanesulfonate and copper methanesulfonate respectively, and add deionized water to the required volume. Among them, the preparation method of silver methanesulfonate is: using methanesulfonic acid and silver oxide (Ag 2 O) The reaction is carried out at a reaction temperature of 50-60°C, and the molar ratio of methanesulfonic acid to silver oxide is 5-6. Tin methanesulfonate and copper methanesulfonate are commercially avai...
Example Embodiment
[0081] Example 1--2
[0082] The composition of the bath is as follows:
[0083] Tin methanesulfonate 0.18mol / L
[0084] Silver methanesulfonate 0.005mol / L
[0085] Copper methanesulfonate 0.002mol / L
[0086] Hydroxyethyl ethylenediamine triacetic acid (HEDTA) 0.8mol / L
[0087] Thiourea 0.03mol / L
[0088] Alkyl glycoside (APG) 0.003mol / L.
[0089] Bath preparation method:
[0090] After dissolving hydroxyethyl ethylenediamine triacetic acid (HEDTA) and thiourea with deionized water, mix them with alkyl glycosides and stir well. Then add silver methanesulfonate, tin methanesulfonate and copper methanesulfonate respectively, and add deionized water to the required volume. Among them, the preparation method of silver methanesulfonate is: using methanesulfonic acid and silver oxide (Ag 2 O) The reaction is carried out at a reaction temperature of 50-60°C, and the molar ratio of methanesulfonic acid to silver oxide is 5-6. Tin methanesulfonate and copper methanesulfonate are commercially avai...
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