Solder Mask concern

  martin, 2 weeks ago

Hello!

I have a couple of fine-pitch smd ICs over which I have a concern with the output of the solder mask performed by EasyEDA. See images:

In EasyEDA:
Viewed in EasyEDA layout editor

Gerber-viewer solder mask layer:

no mask between pads?

Just looking for some reassurance here. The pitch for this IC isn't out of the ordinary (DFN-MF10), about 0.2mm between pads.

Thanks for any pointers.

Comments

andyfierman

Does it look like that if you check using gerbv?

http://gerbv.geda-project.org

martin

Hmmm, gerbv install not so straightforward on OSX. But, yeah, same result:

enter image description here

martin

Andy, has something changed as far as solder mask tolerances? I am pretty sure this footprint was better than that on my last order:

enter image description here

Result:

martin

enter image description here

martin

OK, as far as I can tell, the solder mask layer expands 4 mils around pads. Maybe that's actually OK and I noticed for the first time just recently.

andyfierman

Hi Martin,

Sorry but I don't know if the soldermask spacing has changed.

Maybe ask Support directly?

Tutorials

Hi
@andyfierman @martin We didn't change the solder mask spacing. thanks

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