Mechanical and Physical Properties of In-Zn-Ga Lead-Free Solder Alloy for Low Energy Consumption

International Conference on Innovative Research - ICIR Euroinvent 2016

Efzan, M.N. Ervina^1,2 ; Faziera, M.N. Nur^1 ; Abdullah, Mohd Mustafa Al Bakri^2,3

Faculty of Engineering and Technology, Multimedia University, Ayer Keroh, Malacca

75450, Malaysia^1

Center of Excellence Geopolymer and Green Technology (CeGeoGTech), School of Material Engineering, Universiti Malaysia Perlis (UniMAP), Perlis, Malaysia^2

Faculty of Engineering Technology, Universiti Malaysia Perlis (UniMAP), Perlis, Malaysia^3

关键词: Electronic industries;    Expansion properties;    High energy consumption;    Lead-free solder alloy;    Low energy consumption;    Low melting temperatures;    Mechanical and physical properties;    Physical and mechanical properties;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/133/1/012048/pdf
DOI  :  10.1088/1757-899X/133/1/012048

来源: IOP

【 摘 要 】

Due to the demand in the use of electronics devices in industry, the usage of solder connections has increased. Concerning with the toxicity of lead in Sn-37Pb solder alloy, developing lead free solder alloy with low melting temperature is one of the most important issues in electronic industry. Previously, researchers found out that the most promising candidate of lead free solder alloy is Sn-3.0Ag-0.5Cu (SAC). However, the melting temperature of this solder alloy is 217°C, 34°C higher than Sn-37Pb. This can lead to high energy consumption in electronic industry. In this paper, In-Zn-Ga solder alloy was investigated as a potential candidate replacing SAC. This study covers on the physical and mechanical properties of the solder alloy. Differential Scanning Calorimetry (DSC) testing shows that this solder alloy gave low melting temperature as low as 141.31°C. The addition of Ga in In-Zn solder alloy lowered the melting temperature compared to SAC and Sn-37Pb. From coefficient of thermal expansion (CTE) analysis, the In-Zn-Ga solder alloy gives good expansion properties and able to avoid the mismatch between the solder and copper substrates. The density of In-Zn-Ga solder alloy is 6.801g/cm3, lower than SAC and Sn-37Pb. For the strength, single lap shear testing was conducted on the In-Zn-Ga solder alloy and the results is near to the strength of SAC.