Electronics Forum | Mon Apr 10 22:17:34 EDT 2000 | Dave F
Rob: What was driving the uBGA bridging? On your arrays: * I doubt that your supplier would be pleased that you are wave soldering these pups. If you insist, present leads to the wave on opposite sides of the package at the same time. Is this an
Electronics Forum | Wed Jun 01 09:02:55 EDT 2005 | russ
Is this solder bridge on the nonreworked BGA or the one that was reworked?
Electronics Forum | Thu Jun 13 19:58:51 EDT 2002 | john_wsme
Dear All, We have a SRT BGA rework machine and we created several profiles following solder reflow reqirement, but when we installed BGAs, we saw a lot of solder bridging in the conner. Please give us some ideas to eleminate this problem. Thanks in
Electronics Forum | Tue Oct 28 09:24:10 EST 2003 | davef
Running a soldered BGA through a wave solder pot is very risky: * 230-240*C temperature of the pot could damage the device. * Solder in the pot will certainly cause bridging between BGA solder balls. * Solder in the pot could melt BGA solder balls.
Electronics Forum | Wed Jan 23 18:15:33 EST 2008 | gsala
Hi, are you dealing with Leaded or Lead Free P-BGA ? soldering by Lead or Lead Free paste ? Any way, some time, bridges can be caused by moisture entrapped in the BGA body. Make sure if is respected the correct MSL's allowed flore exposure time, ot
Electronics Forum | Wed Apr 28 10:26:29 EDT 2004 | mrmaint
Hello All, I am having trouble with bridges under my BGA's.I am using paste flux. The compresion on the component appears to be good but i am seeing bridges every 1 out of 5 reworked. The alignment before it starts reflowing the part is fine. Dont un
Electronics Forum | Fri Jun 14 02:13:11 EDT 2002 | john_wsme
Ross, Thanks for your advice. I will take a look at FAB warp and check the pad size. If you also have any suggestions on rework BGA profile, please share some information which is a great help for us. The best regards, John Need help from everybod
Electronics Forum | Fri Jun 14 14:29:22 EDT 2002 | davef
Russ makes good points. Search the archives for: * Links to rework machine profiles. * Discussion on people causing corner shorts on their BGA, when heating them too rapidly, making the corners to curl like potato [potatoe?] chips.
Electronics Forum | Fri Aug 20 12:41:20 EDT 1999 | stefano bolleri
| | Yesterday as I was creating a profile on a plastic BGA using Conceptronics freedom 2000 rework station, I happend to discover that I was able to remove solder bridging from a plastic BGA. | | | | This is what I did. | | | | Created a removal pr
Electronics Forum | Tue Jan 22 22:23:48 EST 2008 | amarpreet41
Thanks, I am working on to prevent solder bridging. Tried fine tuning reflow profile, solder printing looks fine. Any further ideas??
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