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27 Feb 2014 20:33:47 -0800 (PST) | |
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Date: | Fri, 28 Feb 2014 11:33:47 +0700 |
Message-ID: | <CAHdUXzKqjXVUCwzWS7yygrokWU=K7pZBL5_yEUvrv2jgL1A3FQ@mail.gmail.com> |
Subject: | Re: [geda-user] Via under a pad? |
From: | Eugene Mikhantiev <mikhantiev AT gmail DOT com> |
To: | geda-user AT delorie DOT com |
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2014-02-28 3:15 GMT+07:00 Stuart Brorson <sdb AT cloud9 DOT net>: > Yes, it's generally bad practice because the vias will suck solder > down into the hole and away from the pad during reflow. This will > leave the part with little or no solder holding it to the board. > Yes, but there are several techniques used in the PCB manufacture process, which can solve this problem. For example, VIA-IN-PAD, when holes are filled with a special compound. Sometimes, especially when using BGA, this is the only possible solution. But not all PCB manufacturers can do it. -- With best regards, Eugene Mikhantiev
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