Page 178 - Make Your Own PCBs with EAGLE from Schematic Designs to Finished Boards

FIGURE 7-8 Syringe of solder paste.

Solder paste is made from microscopic spheres of solder in a suspension of flux. For industrial
use, it is supplied in tubs, but for small-scale use, you can buy it in syringes ready for hand use.

Solder paste should be kept in a refrigerator but warmed up to room temperature when you are read
to use it.

WARNING Solder paste is a liquid, and if you are using lead-based solder paste, it will easily find
its way into the pores of your skin if you get it on your fingers. Always wear latex gloves if,
like me, you are a bit messy and likely to get it on your fingers.

Tweezers

To be able to pick up and place SMDs onto a board, you will need tweezers (Figure 7-9).