Electronics Forum | Mon Mar 30 16:39:04 EST 1998 | Tony Arteaga
Hello there, I am currently doing BGA repair and basically I am applying the same process as Mike sujested. It is actually the way to go when creating a profile. The next process is re-balling your package, that is if you whant to use the same compon
Electronics Forum | Wed Nov 07 09:19:16 EST 2007 | pjc
Could be not enough peak temp. Do you have a profiler? I'd measure at the BGA joints- drill under board to get access to BGA solder joints and embed a couple of thermocouples with hi-temp solder, then run your profile to see max. temps. and that prof
Electronics Forum | Fri Feb 13 10:10:21 EST 2015 | rgduval
I'm with Evtimov...if you've got a new assembly with a BGA (and especially if BGAs aren't an every day occurrence in your process) it should definitely be profiled. I have run BGA boards without profiling before, and got lucky...but, I wouldn't reco
Electronics Forum | Mon Jan 07 20:29:59 EST 2002 | davef
Your PBGA rework temperature profile should be similar to the same temperature profile as the first original one in the reflow oven. Searching the fine SMTnet Archives gives almost 500 postings on BGA and rework*.
Electronics Forum | Fri Jan 18 09:35:49 EST 2013 | dyoungquist
Just because a certain profile works good for a board with a BGA does not mean it is automatically the correct profile to use for a different board that contains an LGA. Have you run a separate profile check with the board containing the LGA?
Electronics Forum | Wed May 19 04:27:18 EDT 2004 | johnwnz
Also look at IPC 7095 which is all abotu BGA processes including rework. the profile will be 100% based on your board - how many layers, how many are ground & signal, how many of those are the BGA connected to directly or indirectly, the component we
Electronics Forum | Thu Mar 01 12:40:55 EST 2007 | james
We are using lead paste on both sides, the only reason we need to change the profile is because the BGA is lead free. I decided to run the BGA side first, then the connector side. This way I am not running both sides through on a hotter profile.
Electronics Forum | Fri Feb 13 13:34:36 EST 2015 | barryg
What would be a recommended way and were to attach therms for profiling on a board with a BGA or BGA's. Evtimov had mentioned drilling a hole and attaching to the BGA? We do not always get sacrificial boards when we do a job. Is attaching to the PCB
Electronics Forum | Tue Sep 14 13:36:56 EDT 2004 | C Lampron
Hi Simon, I would recommend a thermal profile on a BGA that is mounted directly over another one. The best way to accomplish this is to drill through the first side BGA to just break through the second side. (assuming you have a board that you can d
Electronics Forum | Tue May 23 09:53:05 EDT 2006 | stepheniii
Make sure your reflow profiles are the best you can make them. You will probably want to, at the very least, get some sample BGA's and boards to sacrifice to profiling. Drill a small hole through the board into a middle ball of the BGA. Also put a t
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