PCB Libraries Forum : Pins too tight https://www.PCBLibraries.com/forum/ Wed, 15 Apr 2026 22:53:05 +0000 Tue, 13 Nov 2012 07:45:57 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.07 360 https://www.PCBLibraries.com/forum/RSS_post_feed.asp?TID=677 <![CDATA[PCB Libraries Forum]]> https://www.PCBLibraries.com/forum/forum_images/PCBLForumLogo.gif https://www.PCBLibraries.com/forum/ <![CDATA[Pins too tight : Whenever the pin pitch and...]]> https://www.PCBLibraries.com/forum/pins-too-tight_topic677_post2328.html#2328 Author: Tom H
Subject: 677
Posted: 13 Nov 2012 at 7:45am

Whenever the pin pitch and the hole size conflict with the design rules, I use an oblong pad shape with a minimum pad on the sides and accept drill breakout on the sides (if it happens).
 
I never had any manufacturing problems when using this technique. Sometimes you have to think outside the box. We'll have to introduce this pad shape to the through-hole calculator in V2013.
 
]]> Tue, 13 Nov 2012 07:45:57 +0000 https://www.PCBLibraries.com/forum/pins-too-tight_topic677_post2328.html#2328 <![CDATA[Pins too tight : You are not alone. I have a similar...]]> https://www.PCBLibraries.com/forum/pins-too-tight_topic677_post2322.html#2322 Author: DaveCowl
Subject: 677
Posted: 12 Nov 2012 at 5:02pm

You are not alone. I have a similar issue with a mini DisplayPort connector. You can't space 1mm pads 1mm apart. I don't have a good answer for this problem but think that pad clearance is probably more important than annular ring...?!]]> Mon, 12 Nov 2012 17:02:40 +0000 https://www.PCBLibraries.com/forum/pins-too-tight_topic677_post2322.html#2322 <![CDATA[Pins too tight : uploads/45/Connector.jpg Hello....]]> https://www.PCBLibraries.com/forum/pins-too-tight_topic677_post2319.html#2319 Author: budnoel
Subject: 677
Posted: 12 Nov 2012 at 12:47pm

uploads/45/Connector.jpg
 
Hello. Using IPC density level C (Least) for the padstacks associated with pins 13-16 of the enclosed connector footprint I find less the 5mils of clearance between pads. (4.8mils)  I had to make the pad even smaller than what Level C recommended (c140h90)  Any comments?
]]> Mon, 12 Nov 2012 12:47:09 +0000 https://www.PCBLibraries.com/forum/pins-too-tight_topic677_post2319.html#2319