Electronics Forum | Wed Sep 13 12:01:26 EDT 2000 | Wolfgang Busko
Hi Charly, short question, short answer: excessive mechanical influence often in combination with bad solderjoint itself. For bad solderjoints there are many many reasons, process and material related. Are there any special circumstances that made y
Electronics Forum | Thu May 17 07:58:25 EDT 2001 | Bob Willis
I think the answers to the problem have been given but if anyone wants to see this happening and solder shorts forming during corner warp there is a video clips on BGA shorts to download. Its available free on http://www.bobwillis.co.uk It should am
Electronics Forum | Fri Dec 27 01:26:08 EST 2002 | haran
Currently we are running a BGA with a big thermal pad in the middle of the package and encountered high defect of solder shorts.I would like to check whether anyone has experience this problem and how this can be rectified?.
Electronics Forum | Fri Dec 27 01:30:13 EST 2002 | haran
Currently we are running a BGA with a big thermal pad in the middle of the package and encountered high defect of solder shorts.I would like to check whether anyone has experience this problem and how this can be rectified?.
Electronics Forum | Tue Feb 18 19:07:21 EST 2003 | arturoflores
Our case is not due to thermal pad print squeezing because our shorts are mostly in the outer rows of the BGA so they cannot be caused by central pad printing. We still stick to the BGA thermal pad coplanarity/height hypothesis but have not yet prove
Electronics Forum | Thu May 15 11:50:19 EDT 2003 | mantis
we have seen something similar,at the edge,sof the Bga the tracks were shorted with some burr and excess gold. It was very hard to find but it was root caused back to the BGA manufacturing process.
Electronics Forum | Tue Sep 23 09:18:45 EDT 2003 | russ
IPC SM 782 has some info on wave solder pad geometries. We usually like .03" spacing to any uncommon conductors. I would assume that you are seeing shorts between components and vias or adjacent parts? Russ
Electronics Forum | Tue Apr 27 14:15:53 EDT 2004 | Kirk
thank you for suggestion but i need some more basic information i mean when should i use short tip or long tip, short is better to heat transfer but what about long one, there are curved solder tips what application? Kirk
Electronics Forum | Mon Apr 04 09:26:25 EDT 2005 | russ
Depends on a lot of things as suggested above but we solder land to land spacings of .02" (.5mm) with no shorting. Russ