PCB Libraries Forum : Via Naming Convention https://www.PCBLibraries.com/forum/ Wed, 15 Apr 2026 07:12:23 +0000 Tue, 13 Dec 2016 14:40:02 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.07 360 https://www.PCBLibraries.com/forum/RSS_post_feed.asp?TID=2038 <![CDATA[PCB Libraries Forum]]> https://www.PCBLibraries.com/forum/forum_images/PCBLForumLogo.gif https://www.PCBLibraries.com/forum/ <![CDATA[Via Naming Convention : Where is a via naming convention...]]> https://www.PCBLibraries.com/forum/via-naming-convention_topic2038_post8355.html#8355 Author: Tom H
Subject: 2038
Posted: 13 Dec 2016 at 2:40pm

Where is a via naming convention at?

The anti-pad is for both Positive and Negative planes and it represents a very important value in the pad stack, especially for vias.

If the anti-pad diameter should not be larger than the pad annular ring + trace space.

You do not want to run high speed signal traces over a plane anti-pad. The plane is the signal return path and trace couples with the plane.

In the via pad stack, you have to define the pad, hole, anti-pad and direct plane connect (flood over) for a normal copper pour plane flood.

]]> Tue, 13 Dec 2016 14:40:02 +0000 https://www.PCBLibraries.com/forum/via-naming-convention_topic2038_post8355.html#8355 <![CDATA[Via Naming Convention : Isn&#039;t it time to drop the...]]> https://www.PCBLibraries.com/forum/via-naming-convention_topic2038_post8354.html#8354 Author: bnoel
Subject: 2038
Posted: 13 Dec 2016 at 2:05pm

Isn't it time to drop the zz from the following via naming conventinon:  via-xx-yy-zz  where xx is the pad diameter, yy is the hole diameter and zz is the anti-pad diameter?  We haven't been using negative planes in years and I believe most EDA tools have gotten away from them too.  Thoughts.]]> Tue, 13 Dec 2016 14:05:40 +0000 https://www.PCBLibraries.com/forum/via-naming-convention_topic2038_post8354.html#8354