Interface reaction between electroless Ni–Sn–P metallization and lead-free Sn–3.5Ag solder with suppressed Ni3P formation

• Main Authors: Yang, Ying, Balaraju, J. N., Huang, Yizhong, Tay, Yee Yan, Shen, Yiqiang, Tsakadze, Zviad, Chen, Zhong
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2014
• Subjects: DRNTU::Engineering::Materials::Electronic packaging materials
• Online Access: https://hdl.handle.net/10356/102898; http://hdl.handle.net/10220/24285
• Institution: Nanyang Technological University

The voids formed in the Ni3P layer during reaction between Sn-based solders and electroless Ni–P metallization is an important cause of rapid degradation of solder joint reliability. In this study, to suppress formation of the Ni3P phase, an electrolessly plated Ni–Sn–P alloy (6–7 wt.% P and 19–21 w...