Electronics Forum: underfilling of bga (Page 7 of 31)

Solder bridging on one corner of BGA

Electronics Forum | Wed Jan 16 22:57:52 EST 2008 | amarpreet41

Any one got experience on handling solder bridging under one corner of BGA?

BGA underfill

Electronics Forum | Thu Sep 22 16:06:07 EDT 2011 | davef

Underfilling BGA is an uncommon practice. We'd start looking to find a consultant recommended by our: * Dispenser company * Underfill supplier

Re: Vibration testing of BGA packages/assemblies

Electronics Forum | Mon Dec 28 11:21:21 EST 1998 | Brad Kendall

| Does anyone have any experience with vibration testing of BGA packages and assemblies? We are starting to design BGA's into some of our products and we have not found very much information on vibrational test results. Any information will be help

BGA dropping off underside of board

Electronics Forum | Mon Aug 13 22:39:36 EDT 2007 | davef

The solder used to attach the BGA ball to the BGA interposer would have a liquidous point dependent on the type of solder used by the device fabricator. If this is a lead free device [altho we don't think so], the solder used by the fabricator would

Solder bridging on one corner of BGA

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

Shorts in corners of BGA devices

Electronics Forum | Wed Jun 21 18:51:34 EDT 2000 | John

What is the most likely causes of shorts in the corners of BGA devices?. Is there a method of removing single shorts without removing the device?. John.

Re: X-RAY Inspection of BGA Devices

Electronics Forum | Fri Jul 10 13:42:55 EDT 1998 | Bob Willis

| I am eager to hear from anyone who has experience with X-RAY inspection equipment (specifically for BGA devices) or can make any recommendations. Any knowledge of second hand equipment for sale would also be valuable. | Regards | Rob

limitation's of the QSA 30 machines

Electronics Forum | Mon Dec 12 08:05:11 EST 2005 | bobpan

Quad Align.....Cyber-optics....no difference...they both work well. Never tried a micro-bga but i know the upward camera does standard bga parts.

A BGA reports (RoHS related of course)

Electronics Forum | Fri Feb 09 10:00:12 EST 2007 | patrickbruneel

Interesting BGA saga http://www.emsnow.com/npps/story.cfm?ID=24434 To be continued Patrick

BGA dropping off underside of board

Electronics Forum | Mon Aug 13 08:16:19 EDT 2007 | davef

Your theory is reasonable about a component issue. You need to investigate the solderability of the pads on the BGA interposer.


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