Electronics Forum | Tue Jul 13 00:40:44 EDT 2004 | Darren
Yes of course we are doing placement of BGA's with an IPII. However there is no front lighting so you can not inspect the balls. If the silhouette is square enough there is no problem with alignment. Just use the largest nozzle that will fit on the p
Electronics Forum | Fri Sep 10 12:34:40 EDT 2004 | kbayram
Thanks again for your insights. I'm just learning the details of these machines so you'ill have to bear with me. The descision will be made in around 6 months so I thought I would start my research sooner rather than later. I did get the impression
Electronics Forum | Tue Jun 20 22:52:10 EDT 2006 | davef
We all know those academic 'reliability studies' are very focused and only give a snapshot of real life. The real reliability studies of leadfree are starting as we scramble to meet our numbers. We have no idea about your customers' expectations ab
Electronics Forum | Wed Feb 23 08:27:14 EST 2011 | cyber_wolf
I am going to disagree with that. Our QP242 wasn't worth a crap when it came to reliably placing BGA's. The lighting parameters and the programming will have you tearing your hair out. If you are doing outline recognition on small BGA's...then maybe.
Electronics Forum | Tue Sep 09 15:32:24 EDT 2003 | mantis
We have also seen A similar issue were by the pad would completly come away from the bga land , when lightly scratched with your finger.These boards hadnt even been through our process yet and where fresh out of the pack.These issue was seen at incom
Electronics Forum | Tue Nov 06 10:44:09 EST 2007 | tzawaide
Hi All, We are using BGAs from a new supplier, and the BGA solder balls are not collpasing properly. Can someone out there shed some light on what could be the root cause? Any help is greatly appreciated. Thanks!
Electronics Forum | Wed Jul 16 18:21:20 EDT 2008 | emti
BGA Placement is not easy as we think, Mainly you have to make sure you don't have acceessive amount of paste, try to paste your board as it covers full ball, make sure it is not short before you place any part. If you placing the BGA by hand be car
Electronics Forum | Tue Sep 28 09:41:17 EDT 1999 | Hon Choi
Dear all, We've got a curious problem. We have had a major problem with BGA's occasionally being placed one to several rows or columns off the pads. We are using Universal's GSM2 platform for our general purpose placements. Our Universal rep here
Electronics Forum | Thu Oct 07 21:48:52 EDT 1999 | JAX
| Dear all, | | We've got a curious problem. We have had a major problem with BGA's occasionally being placed one to several rows or columns off the pads. We are using Universal's GSM2 platform for our general purpose placements. Our Universal re
Electronics Forum | Wed Oct 11 13:26:55 EDT 2006 | Steve Gregory
You might want to check with Six Sigma Services, they do this for a living, and might shed some light on the process. Myself, I'm comfortable re-balling a BGA, but I don't know about re-attaching columns...here's their web page: http://www.sixsigmas
