Electronics Forum | Tue May 23 09:17:30 EDT 2006 | John S.
Can anyone provide advise on implementing assembly of a very low volume BGA based board (less than 1500 units/year)? We do not currently do any BGA assembly and lack the inspection/rework equipment thats associated with these parts. Thanks John S.
Electronics Forum | Tue May 23 10:40:25 EDT 2006 | Chunks
Chris is right. You can do a good visual after placement if you have outline marks on your silk screen. That helps a lot. What size BGAs are you talking about. That would determine how critical you want to get with inspection.
Electronics Forum | Tue May 23 14:24:25 EDT 2006 | stepheniii
Another major consideration is moisture. I saw a batch of BGA's delaminate. With the X-ray it looked like the balls were shorted. (Well they were but I mean that wasn't why the BGAs had failed.)
Electronics Forum | Tue May 23 11:26:50 EDT 2006 | jdumont
Good day all, we were offered a pretty good price on a demo stock Vi-3000 AOI system. Just wondering if anyone has any feedback on this unit or the company in general... Thanks in advance, JD
Electronics Forum | Wed May 24 04:28:18 EDT 2006 | ge_lim
Hi Anyone use Warton Active '8' flux to clean the nozzle? Share me your experience
Electronics Forum | Wed May 24 08:50:33 EDT 2006 | stepheniii
how many zones? And what settings are you using now? And you won't get it exactly like the data sheet, especially the cool down.
Electronics Forum | Wed May 24 10:40:22 EDT 2006 | dougs
Do you really need to have that shape of profile, why not have a gradual ramp then spike? Which paste are you using?
Electronics Forum | Wed May 24 21:58:12 EDT 2006 | KEN
I have 4 of these furnaces. Give me your length, width, mass (grams) and I'll run this through our system and get you close.
Electronics Forum | Fri May 26 03:44:34 EDT 2006 | geb
Thank you - The PCB weighs 192.9g and is 314mm x 228mm. Not very densly populated.
Electronics Forum | Fri May 26 10:36:07 EDT 2006 | geb
Cheers Samir, that was a great help! I've tweaked the settings a bit to suit our PCB and it works well. Thanks again.
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