Wang Mingming,Xu Zixuan,Wang Shouhao,et al.Study on wetting properties of electrodeposited nickel coating[J].Plating & Finishing,2023,(7):26-32.[doi:10.3969/j.issn.1001-3849.2023.07.004]
电化学镀镍层的润湿性能研究
- Title:
-
Study on wetting properties of electrodeposited nickel coating
- Keywords:
- electrodeposition ; surface morphology ; wetting angle ; shear strength ; fracture morphology
- 分类号:
- TQ153
- 文献标志码:
- A
- 摘要:
- 为了在微电子器件内凸点下金属化层设计中广泛应用镍基镀层，需要具备良好的润湿性和结合强度。本研究采用电化学表面沉积技术，在金属铜基板上制备了具有不同表面形貌的镍基镀层，并建立了电流密度与镀层表面形貌、均匀性之间的关系。通过系统研究不同镍基镀层上锡基焊球的润湿角和焊点抗剪切强度，发现在电流密度为 2.00 A/dm 2 时制备的镀层表现出最佳表面性能，焊点抗剪切强度可达 92.6 MPa 。此时，镀层表面呈现金字塔状的镍颗粒，润湿角为 75 ° 。
- Abstract:
- ： Nickel-based coatings are extensively employed in the design of metallized layers for microelectronic devices ， which require excellent wettability and bonding strength. In this study ， nickel coatings with different surface morphologies were prepared on copper substrates using electroplating technology. The relationship between current density and surface morphology and uniformity of nickel-based coatings was established. Furthermore ， the wetting angle and shear strength of solder joints on different nickel-based coatings were systematically investigated. The findings indicate that the coating prepared at a current density of 2.00 A/dm 2 exhibits superior surface performance ， with a maximum shear strength of 92.6 MPa and pyramid-shaped nickel particles on the coating surface. Additionally ， the wetting angle of this coating is 75 °.
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备注/Memo
收稿日期： 2022-08-15 修回日期： 2022-09-08 作者简介： 王明明（ 1980 ―），男，高级工程师， e-mail ： 306984241@qq.com * 通信作者： 刘俐， e-mail ： l.liu@whut.edu.cn 基金项目： 国家自然科学基金项目（编号： 62004144 ， 61904127 ）