These are usually pretty easy even if you have traces running to the pins on
the top layer. Usually the pins are easily accessible on the top layer for
- Insert the IC into the holes.
Tape the IC onto the board.
Turn the board over and solder the pins on the bottom.
Turn the board back over, remove the tape, and solder the pins on the
top side. You definitely need to solder the ones connected to traces. It might
be a good idea to solder the others, too, just for structural support.
The installed component should look something like this.
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