FEDEVEL
Platform forum

mulfycrowh , 12-03-2021, 09:49 AM

Hi,

I searched on the web but didn't find how to create NSMD pads with Altium Designer.
These pads are suggested to be used on BGAs.
Thanks for your help.

WhoKnewKnows , 12-03-2021, 06:36 PM

I believe NSMD means Non Solder Mask Defined pads, as opposed to Solder Mask Defined pads.

mulfycrowh , 12-04-2021, 01:06 AM

I defined a solder mask expansion of 0.05 mm

qdrives , 12-04-2021, 04:05 PM

If the pad follows the rules, it will be NSMD. In your case you set it to 0.05mm.
For SMD pad you need to set the solder mask expansion to a negative value and usually for only those pads.