Q&A
Q10: Why are solder types used during SMT assembly?
A10: Reflow soldering is used in SMT assembly to permanently fix components on the PCB and is done in a reflow furnace containing temperature zones. In the reflow welding process, the solder paste is first melted at high temperature in the first and second stages. As the temperature decreases, the solder paste will harden, so the component will be fixed to the corresponding pad on the PCB.
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