Analysis of selected lead-free solders by optical emission spectroscopy / Yee Chung Lee
Characteristic studies were carried out to analyze 5 different types of lead free solder alloy. The concentrations of Pb, Cu, Fe, Ag and Ni in selected lead-free solders were determined by spark emission spectrometry and ICP-OES while their wettability were demonstrated by wetting balance. The Pb co...
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| Format: | Thesis |
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2014
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| Online Access: | http://studentsrepo.um.edu.my/4875/ http://studentsrepo.um.edu.my/4875/1/Yee_Chung_Lee's_Thesis_(SGC_120004).pdf |
| Summary: | Characteristic studies were carried out to analyze 5 different types of lead free solder alloy. The concentrations of Pb, Cu, Fe, Ag and Ni in selected lead-free solders were determined by spark emission spectrometry and ICP-OES while their wettability were demonstrated by wetting balance. The Pb content found is well below the limit set in the Restriction of Hazardous Substances (0.1%). Subsequent statistical analysis revealed that there are five distinctive clusters of solders corresponding to their elemental contents, where the concentrations of Cu, Ag and Ni are the main discriminants. |
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