摘要
采用两种不同牌号、直径为28 mm的微晶磷铜球作为实验材料,通过直读光谱仪、EDS、电子天平和哈氏槽实验仪分析了不同磷铜球中磷的含量及分布、电镀效率、电镀槽体系中电流与电阻随电镀时间的变化规律。结果表明,磷含量较高的微晶磷铜表面能够较快速地形成磷膜,且磷元素分布越均匀,电镀过程中形成的磷铜黑膜均匀性就越好;磷铜球表面钝化的形成降低了电镀效率;1 h后电阻随电镀时间的增加而缓慢地升高或维持在一定范围内,表明了磷铜黑膜持续稳定的形成且降低了磷离子的释出效率。
Two different grades of microcrystal phosphorus copper balls with a diameter of 28 mm were used as test materials.The content and distribution of phosphorus in different phosphorus copper spheres,electroplating efficiency,variation of current and resistance in electroplating bath system with electroplating time were analyzed by direct reading spectrometer,EDS,electronic balance and Harrard cell tester.The results show that the phosphorus film can be formed rapidly on the surface of microcrystal phosphorus copper with relatively high phosphorus content.The more uniform the distribution of phosphorus element is,the better the uniformity of phosphorus copper black film formed in the electroplating process.The passivation of phosphorus copper ball surface reduces the electroplating efficiency.One hour later,the resistance increased slowly with the increase of electroplating time or maintained in a certain range,indicating the continuous and stable formation of phosphorus-copper black film and the decrease of phosphorus ions release efficiency.
作者
张忠科
李昭
赵长忠
王世卓
郑江辉
ZHANG Zhongke;LI Zhao;ZHAO Changzhong;WANG Shizhuo;ZHENG Jianghui(State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals,Lanzhou University of Technology,Lanzhou 730050,China;Nickel-metropolis Industrial Company,Jinchang 737100,China)
出处
《有色金属工程》
CAS
北大核心
2020年第7期8-13,共6页
Nonferrous Metals Engineering
基金
甘肃省科技重大专项(18ZD2GC013)
航空科学基金(201611U2001)。
关键词
微晶磷铜球
磷含量
电镀
micro-grain phosphor-copper ball
phosphorus content
electroplating
作者简介
张忠科(1978—),男,博士,副教授,主要从事焊接设备及自动化、新型连接技术等方面研究。
