Electronics Forum | Thu Aug 10 07:29:43 EDT 2017 | stivais
How do you evaluate the soldering quality for those QFNs? X-Ray or AOI? For some QFNs (and other bottom termination components) it's not supposed to have solder fillets on toes. It's also noted in IPC-A-610 (Rev.F 8.3.13). Take a look at your QFN ch
Electronics Forum | Wed Jun 28 07:31:48 EDT 2017 | jamesbarnhart
The IPC A-610 is the most widely utilized inspection standard for electronic assemblies is now updated. It is now moved at Revision F and there are things many new things we need to know about this. Plz explain in detail the major updation in this mo
Electronics Forum | Thu Jun 29 15:02:56 EDT 2017 | dleeper
Hasn't rev F been out for a few years now? I'm more interested in what's changing in rev G.
Electronics Forum | Tue Jul 04 20:31:21 EDT 2017 | davef
If you want in, 5-21h Bottom Termination Components (BTC) Task Group is in "Working Draft" revision from "A" to "B" of IPC-7093 - Design and Assembly Process Implementation for Bottom Termination SMT Components
Electronics Forum | Tue Jul 18 09:05:54 EDT 2017 | davef
Acceptability of Electronic Assemblies IPC-A-610 F Comparison E to F versions * http://www.electronicsyorkshire.org.uk/UserFiles/PDFs/610E%20to%20F%20Redline%20comparison.pdf * https://www.youtube.com/watch?v=kD5NpsocTpw * http://www.scanditron.c
Electronics Forum | Tue Jul 04 14:50:52 EDT 2017 | dleeper
Thanks! good stuff. I am disappointed the IPC has put off updating QFN solder filet specs till rev H. It's a pet peeve of mine trying to argue with customers that a visible toe filet on a QFN is not necessary, and may not even be possible depending
Electronics Forum | Fri Jun 30 12:21:34 EDT 2017 | davef
James: For IPC Status of Standardization, look here: http://www.ipc.org/Status.aspx dwf: A-610G Final is out for public comment, look here: https://ipc.kavi.com/higherlogic/ws/public/workgroup?wg_abbrev=7-31B
Electronics Forum | Tue Jul 18 07:36:16 EDT 2017 | jamesbarnhart
It is not properly explained there or may be there is out of my sense which I can't understand. I also google some links from my side but I am looking for some differet links from my online friends side. Can anyone send me more links?
Electronics Forum | Mon Jul 24 09:15:32 EDT 2017 | davef
James: This is not "breaking news." IPC-A-610F, Acceptability of Electronic Assemblies was released in July 2014. Both, ... * IPC-A-610G, Acceptability of Electronic Assemblies * J-STD-001G, Requirements for Soldered Electrical and Electronic Assem
Electronics Forum | Fri Oct 13 08:09:41 EDT 2017 | davef
While I wouldn't be happy with this "Hershey's Kiss" appearing solder connection, I'd suck it up and and accept it as acceptable according to IPC-A-610F, Section 5.1
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