NDLI: Influence of SnO$_{2}$ Nanoparticles Addition on Microstructure, Thermal Analysis, and Interfacial IMC Growth of Sn1.0Ag0.7Cu Solder

Content Provider	Springer Nature Link
Author	Sun, Ren Sui, Yanwei Qi, Jiqiu Wei, Fuxiang He, Yezeng Chen, Xiao Meng, Qingkun Sun, Zhi
Copyright Year	2017
Abstract	A new lead-free Sn-1.0Ag-0.7Cu-xSnO$_{2}$ composite solder was smelted in a vacuum arc furnace at 900°C for 30 min. This paper investigated the influence of SnO$_{2}$ nanoparticles on the microstructure, melting properties and growth of interfacial intermetallic compounds (IMCs) at the interface between Cu and the composite solder during isothermal aging. The results indicated that SnO$_{2}$ particles effectively refined the β-Sn grains and reduced the size of Cu$_{6}$Sn$_{5}$. The thermal analysis data showed that nano-sized SnO$_{2}$ decreased the pasty range and melting temperature. In addition, the additional nanoparticles reduced the diffusion coefficient and impeded the growth of intermetallic compounds during soldering and aging. The effect of nanoparticles on solder is closely associated with the added amount of nano-SnO$_{2}$ particles. When the SnO$_{2}$ concentration was 1.0 wt.%, the composite solder possessed an excellent microstructure, suitable melting properties and obvious inhibition effect on the interfacial IMCs. However, excessive addition of SnO$_{2}$ particles in the solder alloys decreased the inhibition effect of the interfacial IMCs.
Starting Page	4197
Ending Page	4205
Page Count	9
File Format	PDF
ISSN	03615235
Journal	Journal of Electronic Materials
Volume Number	46
Issue Number	7
e-ISSN	1543186X
Language	English
Publisher	Springer US
Publisher Date	2017-02-24
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Composite solder microstructure interfacial intermetallic compounds growth SnO$_{2}$ nanoparticles addition Optical and Electronic Materials Characterization and Evaluation of Materials Electronics and Microelectronics, Instrumentation Solid State Physics
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Electronic, Optical and Magnetic Materials Condensed Matter Physics Electrical and Electronic Engineering

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