Page 76 - Make Your Own PCBs with EAGLE from Schematic Designs to Finished Boards

Other package types do not have leads in the conventional sense but rather pads underneath that
match up with pads on the PCB. These packages are only really suitable for soldering using solder
paste and an oven.

If you expect to be soldering your boards by hand, then you probably should stick to the SO
package type. In Chapter 7 you will find some techniques that with practice will allow you to solder
some really small pitch devices.

Connectors

Any board that you design is likely to have connectors of some sort. These may be pin headers, JST
(Japanese Standard Terminal) sockets, screw terminals, or just solder pads to which wires will be
soldered. Figure 3-10 shows a selection of different connector types.