I'm designing my first PCB (2-sided) and can't quite understand. I'm going to be soldering the through-hole components myself such as the resistors. Typically, I put a leg through the hole, heat them, and let the solder flow.
Now the way I have it, the 5 V and signal traces would be on the top, go through a resistor, and then the resistor would connect to GND. I've seen a lot of recommendations for ground/Vcc planes.
But if I use a through hole resistor and solder it from underneath the board where I have a ground plane, would I be shorting one side? When soldering the hole, do I actually need to ensure it doesn't reach the top layer? Or are there gaps between the planes/holes?
For example, do I actually have to solder one leg of the resistor on the top, and the ground side from the bottom?