Wang Yaoli1, Zhang Keke1, Cheng Guanghui3, et al. Effects of RE on the Wettability of Low Ag Sn-2.5Ag-0.7Cu Solder Alloy. [J]. Special Casting & Nonferrous Alloys (8):651-653(2008)
Wang Yaoli1, Zhang Keke1, Cheng Guanghui3, et al. Effects of RE on the Wettability of Low Ag Sn-2.5Ag-0.7Cu Solder Alloy. [J]. Special Casting & Nonferrous Alloys (8):651-653(2008)DOI:
Effects of RE on the Wettability of Low Ag Sn-2.5Ag-0.7Cu Solder Alloy
The wettability of Sn-2.5Ag-0.7Cu-xRE lead-free solder alloy on the 1206 component and Cu substrate was examined with the water-soluble flux by means of the wetting balance method. The results indicate that the highest wetting force and the biggest spreading area as well as the smallest wetting angle can be obtained with adding 0.1%RE in the Sn-2.5Ag-0.7Cu solder alloy
exhibiting desirable wetting properties
which can fully meet the wettability requirement of surface mount component due to its wetting force superior to that of commercial Sn3.8Ag0.7Cu solder alloy.