Through hole parts connected to the top layer

Through-hole parts can be connected to traces on the component layer if plated through holes are used. However if this is done, some parts are difficult to remove without damaging the board. Heavy components like transformers might break from the board if only connected to traces on the component side. Components that need a lot of heat during the soldering process might not properly soldered if  traces at the component side remove part of the heat and only a small surface is available to apply the heat. Connectors, switches and  potmeters might damage the board as a result of mechanical forces applied to that component. It would be nice if the auto router had the possibility to connect selected parts only at the solder side. It would also be nice if connectors, switches and  potmeters could be connected to wider traces. Very often the traces to these components break as a result of mechanical forces. For instance the earphone connector of a portable MP3 player. A wide trace can easily be repaired by soldering a piece of wire over the crack. This cannot be done by selecting the board rules to use wider traces. The auto router should use wide traces  only close to those components and only where board space is available. This way the boards are more reliable and easier to repair.

Through-hole parts can be connected to traces on the component layer if plated through holes are used. However if this is done, some parts are difficult to remove without damaging the board. Heavy components like transformers might break from the board if only connected to traces on the component side. Components that need a lot of heat during the soldering process might not properly soldered if  traces at the component side remove part of the heat and only a small surface is available to apply the heat. Connectors, switches and  potmeters might damage the board as a result of mechanical forces applied to that component. It would be nice if the auto router had the possibility to connect selected parts only at the solder side. It would also be nice if connectors, switches and  potmeters could be connected to wider traces. Very often the traces to these components break as a result of mechanical forces. For instance the earphone connector of a portable MP3 player. A wide trace can easily be repaired by soldering a piece of wire over the crack. This cannot be done by selecting the board rules to use wider traces. The auto router should use wide traces  only close to those components and only where board space is available. This way the boards are more reliable and easier to repair.