Electronics Forum | Wed Sep 11 23:20:44 EDT 2002 | scottefiske
Profiles are absolutely the first course of action to validate. A few additional questions would be: * Moisture can cause warping as well, verify the manufacturers recommended handling procedures were followed. * Where is the suspect BGA located
Electronics Forum | Fri Mar 27 10:16:33 EDT 2015 | dyoungquist
A good resource for implementing/evaluating a BGA process is IPC-7095C - "Design and Assembly Process Implementation for BGAs". I get no monetary or other compensation for promoting that standard but it is fun to mention that a board assembled by my
Electronics Forum | Thu Mar 26 19:13:15 EDT 2015 | vladig
Right. That's what we normally do for our customers in order to just qualify a process. I'd just add X-ray, particularly on a large BGAs. Regards, Vlad SENTEC TESTING Laboratory Inc.
Electronics Forum | Wed Mar 04 13:06:45 EST 2015 | cyber_wolf
A full blown analysis could become very expensive. There are many test that can be performed. 3D acoustic microscopy, X-ray, Dye and pry,and I'm sure the list goes on. Typically, a micro-cross section report of the BGA solder joints will show you w
Electronics Forum | Wed Mar 04 11:20:19 EST 2015 | jorge_quijano
Hola, I'm about to evaluate our BGA capabilities by using a dummy PCB+Components kit, I'll be evaluating solder paste, pick n place, reflow process & rework method. I have an idea of how to validate these processes. I'm planning to send different sa
Electronics Forum | Fri Mar 27 05:11:24 EDT 2015 | robertwillis
If you want a step by step guide on BGA look at my NPL/IPC "Defect of the Month" video clips https://www.youtube.com/watch?v=MC4K0eSXH18 For other process issues there are also videos which may assist on other process issues like voids, solder ball
Electronics Forum | Wed Sep 12 18:11:03 EDT 2001 | davef
First, what on the area array package are you analyzing � * Package cracking? * Cracked solder balls? * Er, what? Second, most failure analysis discussions consider dye penetration to be a non-destructive test, but then again most failure analysis
Electronics Forum | Sat Mar 13 13:34:45 EST 2021 | proy
I have an excellent operating X-Ray - Phoenix PCB analyser 160. It seems there was available software for Voiding Calculation but I am not sure if my machine has this - I do know that we have the BGA analysis tool, but have to look in and see if we
Electronics Forum | Thu Mar 16 16:23:12 EDT 2017 | u4bga
I'm wondering what can we learn from an X-Ray analysis of solder joints - specifically, non-BGA joints (through-hole & SMT) joints.
Electronics Forum | Thu Mar 16 17:33:40 EDT 2017 | dontfeedphils
Voiding, fracturing, barrel-fill, I'm sure there are some I'm missing.
