Electronics Forum | Fri Apr 16 04:19:28 EDT 2004 | denis_s
Hi, I've a problem with a BGA. I've the impression that the balls broke then there is a too big mecanical stress on the PCB. I lost some dBm and when I press on the BGA I measure the good value! It's like the balls are take off the BGA or PCB and wh
Electronics Forum | Wed Sep 30 11:32:45 EDT 2009 | pbarton
What type of conformal coating are you using and are you allowing the coating to migrate under the device in question? If you are allowing the coating unbder the BGA the problem could be CTE of coating is much greater than that of the BGA balls/sold
Electronics Forum | Wed Dec 28 14:35:10 EST 2005 | chunks
E-Z Samir! He's just lookin' for an X-ray REP. He's not carrying the "X-Ray cures all BGA problems" banner. Usually the nurse/patient thing is due to the nurse really feeling sorry for the patient. And since Riyadh is the capital for mental insti
Electronics Forum | Wed Apr 09 05:55:05 EDT 2003 | Chrissie
We've encountered a little problem with BGA's. There was a process problem in the build of the boards which has ment the BGA are failing open circuit due to the lack of solder paste. Any-one else had this problem? Any suggestions on solutions? We've
Electronics Forum | Thu Jan 20 14:12:34 EST 2005 | Alabama
Does anyone have or know of any reasons why this would not be acceptable?(BGA's @45 degrees)
Electronics Forum | Fri Jun 02 19:38:12 EDT 2000 | Ravi Bhat
Robert, I think I am late, but better be late than never. Did you get solution to your problem. If not, Can you give me the stencil aperture dimensions and aperture type ? I think I can give you some insight into this.
Electronics Forum | Tue Mar 20 05:26:32 EDT 2007 | CL
Hi Chrissie, BGA Rework from one CM's view: 10% process problem (printing, reflow, voids, etc) 10% component failure (no other problem found) 80% "The board does not work therefore it must be the BGA" This, of course, is exaggerated. My point bein
Electronics Forum | Wed May 02 11:27:17 EDT 2012 | aj
Are you having problems with alignment of BGA's or perceiving that you will have problems. We run thousands and they re-align very well with leadfree if slightly off - Do you handplace all your BGA's? I would imagine there would be cosiderable cos
Electronics Forum | Fri May 23 00:16:31 EDT 2014 | edriansyah
Hello all. I need you advice and opinion on my problem with BGA drop off from the boards. Initial defect was ICT fail, but due to some accident, the board fell off, and the BGA just pop out. After some search, I end up to conclude it is a black pad
Electronics Forum | Wed Jul 13 16:51:28 EDT 2005 | KT
we do it all the time. We havent had any problems with the BGA's. But, you dont want BGA right beneath another BGA.
