Hi all,
In the past, I had to work with this kind of phototransistor, where the 2 pad are on the same coordinate but on different layer. We had to redial the hole halfway to remove the plating.
But sadly I’ve never been able to create a footprint without DRC error, I’m also interested with that kind of design, to connect a coaxial cable for example.
If a footprint guru is out there some tips would be greatly appreciated
Thanks
Laurent
I don’t know if this will work without printing the gerbers out but I just stacked two smd pads on top of a NPTH and it let me. Doesn’t display correctly in the 3D viewer but gerbers would tell the real story I guess.
That looks like a candidate for a hole with two smd pads at 180 degrees apart.
Sounds like fun.
The DRC doesn’t give you an error at the layout level ?
I get an unconnected pad error. I don’t see any thing else. But, I haven’t integrated it into the design. I just dropped it onto an existing schematic to see if it worked as a footprint.
Yeah, if we move one pad on the bottom layer, that will work, I just had a more circular design in mind
Of course not. It’s just the foot print. You will have to define a symbol to your liking with two pins as well. Then you are in.
Yeah I know it’s just the footprint,
I mean the two electrode are on different layer,
That’s mach better. I did not take the components circular shape into account. Been just playing round for fun.
make sure you do not assign a pad number to the non plated hole.
Designed with stepup?
That is the editor default action. It lists NPTH as “mechanical”.
@hermit you are right… it this case the bottom pad should have a pad number, because is connected to a component terminal, but if designed as NPTH kicad cannot assign a pad number to a mechanical pad…
(the two top pads have the same pad number)
No problem to have pin numbers on both sides und an npth. Have a close look!
op600-fp-v4.kicad_mod (2.8 KB)
