Hello,
so far I've self-made many double-sided high density PCB's for prototypes.
Now I need them to be manufactured by an external company. One thing that
I will really enjoy is PTH, as I have some connectors that make it almost
impossible for me to solder the top pads, but with the professionally made
PCB's it will be possibile for me to solder only the bottom pads, and then
the tin will flow on the opposite side and the end result will be almost
like if I soldered both sides. Neat.

I wonder if, to make for best results, should I make the holes larger than
normal, else the tin won't be able to reach the opposite side of the PCB?

Usually I make holes as tight as possibile, so that the TH components don't
fall on the floor if I turn the board, but I can still insert them without
making a war.

Will this hole tolerance be still OK also for PTH, or must I make larger
holes? High current will go through this connector and pads, so I really
want to make sure that both sides are very well soldered.

With kind regards,
Mario

--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.