[PCB_FORUM] Re: Anti Soldermask

Thank you for replaying!
I will try to follow your suggestions: to define different via padstacks and to use them together with the mentioned skill. 

Robert

Robert Szumowicz wrote:

Hi All,
is there a way in Allegro to cover some vias by a soldermask but not by replacing the definition of via. The simplest would be to draw a shape which would work as anti-soldermask, i.e. it would clear all existing soldermask openings over the shape area. I would like to quickly cover vias under some components leaving second side of vias not covered by a solder mask. The board uses several via sizes and changing manually vias to: covered on top / covered on bottom / covered on both sides is a lot of work. One possibility would be to modify an art output, but the preferred method is to have it done in the design. If I could embed such feature into footprints would be even better.
One more question: I've read recently that tenting vias (covering by soldermask on both sides of the board) is not recommended. Is that a true? 

thank you for suggestions,
Robert

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