Au contraire, Monsieur!!

I've seen round pads used numerous times! Mostly on 0402 footprints
though...I suppose it wouldn't hurt on 0603 pads.

The benefits are a reduction in tombstones, and increased space for routing
traces.

I'll send you a picture of a board that I have here now that has round pads
(there's part of a dime in the picture for scale), but I've got more than just
a few boards that I build here that uses round pads, and from my experience,
it does help prevent tombstoning. I have less problems with tombstones on

Hope this helps!

-Steve Gregory-



> I'll take the total lack of response to mean nobody has seen this.
>
> Thanks anyway.
> Jason
>
> -----Original Message-----
> From: Jason Lineback
> Sent: Monday, March 22, 2004 10:37 AM
> To: TechNet+AEA-IPC.ORG
> Subject: +AFs-TN+AF0- Round SMT pads
>
>
> Hello
>
> Is there a trend coming to use round pads for SMT components?
>
> I work for a contract manufacturer and within the last month we have quoted
> 2 assemblies from 2 different customers, both had round pads for 0603
> components. Both customers outsourced their board design. We do not know if both
> customers used the same designer.
>
> We have not seen this before and have not found any information supporting
> this type of design. Anyone have any information on processing these?
>
> Thanks
> Jason Lineback
>




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