Electronics Forum | Fri Mar 08 09:27:43 EST 2002 | Amir
hello guys and gals: we know that BGA placement or rework are such a pain in *** oh well! but i was wonder if you can help me to figure: how many BGA do you place on board annualy? (just a bulk park idea) do you rework BGA in house? do you think
Electronics Forum | Fri Dec 10 08:42:37 EST 2004 | mattkehoe
We had some bad experiences trying to work with soldermask defined BGA pads. If the opening in the soldermask is right to the edge of the copper/pad without a space it can leave reside on the pad and nothing will stick to it. See http://www.sipad.com
Electronics Forum | Mon Nov 26 17:42:24 EST 2001 | davef
I agree. Voids in plating are bad news and baking will not change that.
Electronics Forum | Wed Sep 21 01:51:32 EDT 2005 | hly
Cognex board is bad. Waiting to get a replacement. Thanks for offering to help
Electronics Forum | Mon Mar 19 11:32:06 EST 2001 | Steve
Have you done any analysis on the failed rework? There could be any one of several reasons, i.e. bad alignment, wrong reflow profile, bad pad plating, etc. More information will help us help you.
Electronics Forum | Thu Sep 15 16:07:19 EDT 2016 | davef
In electronic manufacture, it's never good when "oozing" is part of the conversation. "Bridging" that's bad too. "Melting" sometimes good, sometimes bad. Got pix? How about some nice color pictures?
Electronics Forum | Thu Oct 28 13:36:14 EDT 1999 | Bart Smith
I am a design engineer and have a circuit board design with a 292 pin BGA on it. The board manufacturer is experiencing a failure rate of about 2.8% on the BGA device due to soldering problems. This is my first experience with BGA. How does the 2.
Electronics Forum | Tue Feb 12 04:07:29 EST 2008 | aj
Hi, Have you checked out the BGA datasheet and see what profile is recommended for the BGA ? I use OM338 and there are dozens of recommended profiles for the Paste but you have to consider the components aswell. You state your Peak temp which I w
Electronics Forum | Sat Sep 14 20:42:48 EDT 2002 | kenbliss
Hi Scott Thanks for your comments, you stated "The highest attributer was clogging apertures in fine pitch, resistor networks, and BGA, Micro BGA areas" was this do just to the size of the aperture or bad or old paste or debris from inadequate clean
Electronics Forum | Tue Jun 15 15:10:44 EDT 2004 | mrmaint
Looking for feedback on an Airvac DRS24C Bga rework station. Looking for both good and bad feedback. Users only please, no sales folks. Thanks MRMAINT
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