Electronics Forum | Thu Sep 02 11:17:39 EDT 1999 | AF Ng
Could someone shares their experience on the causes of 'Open' in the BGA after reflow.
Electronics Forum | Thu Sep 05 03:23:14 EDT 2002 | manic
Hi, I encountered a problem with pbga. One edge either warp downwards or upwards creating bridging or open. This pbga have fr4 at the bottom (compound molding at the top). The fr4 is bigger than the top compound by 3mm at each edge. Pls help. Than
Electronics Forum | Thu Sep 02 12:08:22 EDT 1999 | Doug Philbrick
| Could someone shares their experience on the causes of 'Open' in the BGA after reflow. | | Reflow prifle is also critical, as usual. On large boards board support is also a factor. If the board warps at the BGA you can experience opens. Good Luck
Electronics Forum | Thu Aug 05 16:07:51 EDT 2004 | davef
Did you record the thermal recipe on the ball that your customer complained as open or some other ball?
Electronics Forum | Thu Sep 02 11:50:58 EDT 1999 | ScottM
| Could someone shares their experience on the causes of 'Open' in the BGA after reflow. | | Insufficient solderpaste. "No flux" (sat too long after print). Those are what I've experienced. Cheers, Scott
Electronics Forum | Tue Oct 03 09:23:55 EDT 2006 | kenscj
We are encountering BGA solder open connection. At Functional Test, the board failed. Debug guy diagnosed this BGA open connection (2 locations), by using multimeter. Under 5DX inspection, there is connection. Take the board for localised reflow at
Electronics Forum | Sun Sep 05 12:59:48 EDT 1999 | Dean
| Could someone shares their experience on the causes of 'Open' in the BGA after reflow. | | Single sided BGA assy? Or double sided BGA assy (BGA's on both sides)? I have processed double sided (MIrror assy.) bga assemblies and can tell you it is
Electronics Forum | Thu Aug 05 17:33:10 EDT 2004 | russ
We get this from time to time and I have found that a lot of times the customer or somebody has broken the joints from flexing or other handling. Is this component in the center of the PCBA? Russ
Electronics Forum | Fri Sep 03 14:20:38 EDT 1999 | David
| Could someone shares their experience on the causes of 'Open' in the BGA after reflow. | | You must have been in the same meeting I was in earlier today. We are currently having some opens on BGAs. The problem joints are all on the perimeter of
Electronics Forum | Tue Sep 07 12:45:47 EDT 1999 | Brad Kendall
| Could someone shares their experience on the causes of 'Open' in the BGA after reflow. | | Are you having a problem with the joint openning up after reflow. Like it was soldered after the reflow process, but at final test is not? I had this pr
