Page 177 - Make Your Own PCBs with EAGLE from Schematic Designs to Finished Boards
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FIGURE 7-7   Hot-air gun.



      You can normally set both the temperature of this air and the flow rate. You will need to control
  the flow rate because many SMD components are so small that they can easily be blown away by the
  pressure of air from a hot-air gun.


  Solder Paste


  When soldering SMDs, you can, with care, use regular solder. However, if you are using a hot-air
  gun or a reflow oven, then you will need to use solder paste (Figure 7-8). Solder paste is available in
  both  lead-based  and  lead-free  varieties  and  suffers  the  same  pros  and  cons  as  those  variants  of
  regular solder.
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