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Sun, 13 Sep 2015 14:35:13 -0700 (PDT) | |
Date: | Sun, 13 Sep 2015 23:35:11 +0200 |
From: | "Nicklas Karlsson (nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com> |
To: | geda-user AT delorie DOT com |
Subject: | Re: [geda-user] zero soldermask clearance not caught by DRC |
Message-Id: | <20150913233511.a9656aebf73452f53f9bfe8f@gmail.com> |
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> > Usually solder mask is a little bit larger to not cover any of the > > pad. I guess you will be able to solder the part even if "visible" pad > > is a little bit smaller because of tolerance problem with solder mask. > > > > Yes, I agree with you. > > ... In a perfect world, 0.0 gap from pad to mask is okay. But, > because the board manufacturer cannot guarantee this precision, they > like to add a gap such that under worst case the mask doesn't cover the > pad. Then it could be argued if this tolerance should be pot on each individual pin or once in for solder openings in the *.pcb file.
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