Sn-Ag-Cu三元合金焊料电沉积中添加剂的影响研究

doi:10.13208/j.electrochem.210441

电化学（中英文） ›› 2022, Vol. 28 ›› Issue (6): 2104411. doi: 10.13208/j.electrochem.210441

Sn-Ag-Cu三元合金焊料电沉积中添加剂的影响研究

缪桦¹, 李明瑞², 邹文中², 周国云²^,^*(), 王守绪², 叶晓菁¹, 朱凯¹

1.深南电路股份有限公司,广东深圳 518023
2.电子科技大学材料与能源学院,四川成都 610054

收稿日期:2021-05-06 修回日期:2022-05-30 出版日期:2022-06-28 发布日期:2022-06-28
通讯作者: 周国云 E-mail:gzzhou32@uestc.edu.cn

Study on the Effect of Additives in the Electrodeposition of Sn-Ag-Cu Ternary Alloy Solder

Hua Miao¹, Ming-Rui Li², Wen-Zhong Zou², Guo-Yun Zou²^,^*(), Shou-Xu Wang², Xiao-Jing Ye¹, Kai Zhu¹

1. Shennan Circuits Co., Ltd,Guangdong Shenzhen 518023, China
2. School of Materials and Energy, University of Electronic Science and Technology of China, Sichuan Chengdu 610054, China

Received:2021-05-06 Revised:2022-05-30 Published:2022-06-28 Online:2022-06-28
Contact: Guo-Yun Zou E-mail:gzzhou32@uestc.edu.cn

摘要/Abstract

摘要：

Sn-Ag-Cu三元合金是目前最为理想的Sn-Pb合金替代品,采用电沉积的方法来制备Sn-Ag-Cu三元合金,具有生产效率高、设备简单、维护方便、镀层性能优良等优点。通过霍尔槽实验确定了电镀液的配位体系;通过微观形貌表征、电化学腐蚀测试以及阴极极化曲线测试,确定了镀液中使用的光亮剂种类及二者的比例;通过微观形貌表征的方法,确定了电镀液中的分散剂;通过测定镀液中Sn²⁺离子的浓度变化,确定了镀液中的稳定剂。结果表明,当使用柠檬酸铵和硫脲作为配位剂,光亮剂选用苄叉丙酮和聚乙二醇,分散剂选用聚丙二醇,稳定剂选用抗坏血酸时,镀液阴极极化作用强,稳定性强,镀层致密平整,抗腐蚀能力强。

关键词: 三元合金, 电沉积, 添加剂, Sn-Ag-Cu

Abstract:

Sn-Ag-Cu ternary alloy is the most ideal substitute for Sn-Pb alloy at present, and can be prepared by electrodeposition with high production efficiency, simple equipment, easy maintenance and excellent coating performance. The coordination system of the electroplating solution was investigated through the Hull cell experiment. The type of brighteners used in the plating solution and the ratio of the two brighteners were determined through the microscopic morphologic characterization, electrochemical corrosion test and cathodic polarization curve test. In addition, the dispersant and stabilizer were studied by observing the microscopic morphology and measuring the concentration change of Sn²⁺ ions in the plating solution, respectively. The results showed that when ammonium citrate and thiourea were used as the complexing agents, benzylidene acetone and polyethylene glycol as the brighteners, poly propylene glycol as the dispersing agent, and ascorbic acid as the stabilizer, the wide current density range of the plating solution and excellent stability were obtained. Furthermore, the resulted coating was dense and smooth with high corrosion resistance.

Key words: ternary alloy, electrodeposition, additive, Sn-Ag-Cu

缪桦, 李明瑞, 邹文中, 周国云, 王守绪, 叶晓菁, 朱凯. Sn-Ag-Cu三元合金焊料电沉积中添加剂的影响研究[J]. 电化学（中英文）, 2022, 28(6): 2104411.

Hua Miao, Ming-Rui Li, Wen-Zhong Zou, Guo-Yun Zou, Shou-Xu Wang, Xiao-Jing Ye, Kai Zhu. Study on the Effect of Additives in the Electrodeposition of Sn-Ag-Cu Ternary Alloy Solder[J]. Journal of Electrochemistry, 2022, 28(6): 2104411.

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链接本文: https://electrochem.xmu.edu.cn/CN/10.13208/j.electrochem.210441

https://electrochem.xmu.edu.cn/CN/Y2022/V28/I6/2104411

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参考文献 10

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Plating solution	Benzalacetone	Polyethylene glycol
1	3	500
2	3	1000
3	3	1500
4	6	500
5	6	1000
6	6	1500
7	9	500
8	9	1000
9	9	1500
Control	0	0

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Sn-Ag-Cu三元合金焊料电沉积中添加剂的影响研究

Study on the Effect of Additives in the Electrodeposition of Sn-Ag-Cu Ternary Alloy Solder

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