The steam phase is another opportunity of soldering SMD components. This method is used preferentially by IMS circuit boards (isolated metal substratum) at the use. A steam atmosphere is produced to this with the help of a liquid with a temperature of up to 230° in the steam phase. Exactly as in the case of the Reflow soldering on-glazes of the plumb line get the components fixed on the circuit board or connected to the solder contacts through this.