4 ms·
The design looks fine and professional. Some hopefully helpful comments: One trace is too close to board edge. Try not to run traces between 0.1" header holes
by swamp40 4y ago
The design looks fine and professional.
Some hopefully helpful comments: One trace is too close to board edge. Try not to run traces between 0.1" header holes if you don't have to. The vias might be a bit small for a simple board with plenty of room.
We don't use slots for the power jacks, just holes and fill the whole thing in with solder. Slots are a bit difficult for some pcb houses. That's just a preference though.
We also use ENIG because the unleaded HASL builds up a film after ~6 months. But if you aren't going to store the bare boards, HASL is just fine.
Overall looks great!
- wildzzz 4y agoWe use lead HASL because gold plating can hide defects in the nickel plating that can create poor solder joints because solder won't stick to corroded nickel. The gold also can embrittle solder joints which is bad for applications where lots of vibration is a concern.
- swamp40 4y agoI didn't think you could use lead for anything but military stuff? We have RoHS requirements everywhere. The gold is so thin I would think you could see a nickel problem, but IDK. Most of our problems come from lead-free solder, it is very brittle. I didn't know the gold could make it worse.