PCB Libraries Forum : No Support for DFN IC's? https://www.PCBLibraries.com/forum/ Tue, 21 Apr 2026 13:04:45 +0000 Thu, 18 Aug 2016 14:22:23 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.07 360 https://www.PCBLibraries.com/forum/RSS_post_feed.asp?TID=1943 <![CDATA[PCB Libraries Forum]]> https://www.PCBLibraries.com/forum/forum_images/PCBLForumLogo.gif https://www.PCBLibraries.com/forum/ <![CDATA[No Support for DFN IC's? : PDF version is now available at...]]> https://www.PCBLibraries.com/forum/no-support-for-dfn-ics_topic1943_post8001.html#8001 Author: Nick B
Subject: 1943
Posted: 18 Aug 2016 at 2:22pm

PDF version is now available at http://www.PCBLibraries.com/Downloads

]]> Thu, 18 Aug 2016 14:22:23 +0000 https://www.PCBLibraries.com/forum/no-support-for-dfn-ics_topic1943_post8001.html#8001 <![CDATA[No Support for DFN IC's? : Cheers Tom, is it not available...]]> https://www.PCBLibraries.com/forum/no-support-for-dfn-ics_topic1943_post7998.html#7998 Author: Matthew Lamkin
Subject: 1943
Posted: 18 Aug 2016 at 8:12am

Cheers Tom, is it not available as a PDF anywhere?

Nick, its not in the surface mount document - that's component naming - not padstack naming.

I really do need to gather all these docs and make a folder full - trying to find PDF's all the time is very time consuming. To hell with the idea of a paperless office - I cant doodle on that :)
]]> Thu, 18 Aug 2016 08:12:11 +0000 https://www.PCBLibraries.com/forum/no-support-for-dfn-ics_topic1943_post7998.html#7998 <![CDATA[No Support for DFN IC's? : Also on the &#034;Downloads&#034;...]]> https://www.PCBLibraries.com/forum/no-support-for-dfn-ics_topic1943_post7997.html#7997 Author: Nick B
Subject: 1943
Posted: 18 Aug 2016 at 7:01am

Also on the "Downloads" page, look for the "Surface Mount Components" button.
Date updated (as of this point) is 8/15/2016.
]]> Thu, 18 Aug 2016 07:01:55 +0000 https://www.PCBLibraries.com/forum/no-support-for-dfn-ics_topic1943_post7997.html#7997 <![CDATA[No Support for DFN IC's? : It&#039;s in the &#034;PCB Library...]]> https://www.PCBLibraries.com/forum/no-support-for-dfn-ics_topic1943_post7996.html#7996 Author: Tom H
Subject: 1943
Posted: 18 Aug 2016 at 6:52am

It's in the "PCB Library Construction Guidelines" section in the Forum -
http://www.pcblibraries.com/forum/pcb-library-construction-guidelines_forum30.html

IPC-7351 Pad Stack Naming Convention

Along with other library construction documents.


]]> Thu, 18 Aug 2016 06:52:51 +0000 https://www.PCBLibraries.com/forum/no-support-for-dfn-ics_topic1943_post7996.html#7996 <![CDATA[No Support for DFN IC's? : Tom is the latest pad naming convention...]]> https://www.PCBLibraries.com/forum/no-support-for-dfn-ics_topic1943_post7995.html#7995 Author: Matthew Lamkin
Subject: 1943
Posted: 18 Aug 2016 at 6:47am

Tom is the latest pad naming convention document also available?
I cannot find it on the downloads page.
]]> Thu, 18 Aug 2016 06:47:59 +0000 https://www.PCBLibraries.com/forum/no-support-for-dfn-ics_topic1943_post7995.html#7995 <![CDATA[No Support for DFN IC's? : Cheers Tom, The correct one was...]]> https://www.PCBLibraries.com/forum/no-support-for-dfn-ics_topic1943_post7971.html#7971 Author: Matthew Lamkin
Subject: 1943
Posted: 16 Aug 2016 at 12:44am

Cheers Tom, Thumbs Up

The correct one was chosen then, I'll scribble on my IPC-DRM-18H book. Smile
]]> Tue, 16 Aug 2016 00:44:18 +0000 https://www.PCBLibraries.com/forum/no-support-for-dfn-ics_topic1943_post7971.html#7971 <![CDATA[No Support for DFN IC's? : This package is not a DFN (although...]]> https://www.PCBLibraries.com/forum/no-support-for-dfn-ics_topic1943_post7969.html#7969 Author: Tom H
Subject: 1943
Posted: 15 Aug 2016 at 9:37am

This package is not a DFN (although that is what the Mfr. calls it).

JEDEC and IPC call this a SON w/Tab.

The main documents that explains all the package names and solder joint goals are here -
www.pcblibraries.com/downloads

Download "Surface Mount Component Families"

Note: there was a major update to this document this last weekend and we're all waiting for it to post today. It has 10 additional pages of information and the new IPC-7351C (Proposed) solder joint goal tables and updated land pattern images.


]]> Mon, 15 Aug 2016 09:37:49 +0000 https://www.PCBLibraries.com/forum/no-support-for-dfn-ics_topic1943_post7969.html#7969 <![CDATA[No Support for DFN IC's? : Hello, IPC-DRM-18H page 60 has...]]> https://www.PCBLibraries.com/forum/no-support-for-dfn-ics_topic1943_post7968.html#7968 Author: Matthew Lamkin
Subject: 1943
Posted: 15 Aug 2016 at 8:28am

Hello, IPC-DRM-18H page 60 has DFN (Dual Flat No Lead) packages.

For an IC such as pdfserv.maxim-ic.com/package_dwgs/21-0137.PDF with multiple pads either side these are not within the LEP.

SON with tab seems the nearest, is this the correct one to use for this package please?

Also is there any sort of list that says which LEP family to use for which known as family?

Thank you
Matthew
]]> Mon, 15 Aug 2016 08:28:36 +0000 https://www.PCBLibraries.com/forum/no-support-for-dfn-ics_topic1943_post7968.html#7968