For surface mount board reflow soldering process, the process is more complex, can be divided into two types: single and double mount mount.
One side mount
The pre coated solder paste, SMD (divided into manual and automatic mount mount), reflow soldering and electrical testing, inspection.
Double mount
A surface pre coating paste, patch (divided into manual and automatic mount mount), reflow soldering to B surface pre coating paste, patch (divided into manual and automatic mount mount), reflow soldering and electrical testing, inspection.