Electronics Forum | Fri Jun 04 11:38:47 EDT 2021 | bangir
Hi All, Do you have any experience for LGA component rework on SRT equipment? Please share how to re-soldering the LGA component to PCB pads. Thanks
Electronics Forum | Sat Jun 05 13:38:22 EDT 2021 | ppcbs
For Linear Tech LGA's we solder bump the LGA using a .30mm solder ball then reflow with a tacky flux. This will provide a void free solder joint and adds a little height to the solder joint in case you use a flux that you want to clean from under th
Electronics Forum | Fri Jun 04 11:54:22 EDT 2021 | cbart
We do this quote often with our older Summit machine. there are a few ways to do this. all of these are assuming you have parts on the boards already and are working around them. 1- if you have a good tech that can add solder to the pads on the PCB a
Electronics Forum | Fri Nov 23 06:34:43 EST 2012 | bandjwet
With all of the various techniques available for LGA rework including but not limited to: Bumping the part using a polyimide stencil http://www.solder.net/products/stencilmate Bumping the part using a metal fixture or http://www.finetech.de/advance
Electronics Forum | Tue Mar 31 08:18:32 EDT 2015 | philc
There is a useful PDF on the Freescale website about reworking LGA's that you might find helpful. It's at cache.freescale.com/files/32bit/doc/package_info/AN2920.pdf
Electronics Forum | Mon Aug 25 16:48:14 EDT 2008 | petep
Any tips out there for effective LGA rework? How is solder best re-applied? Can these parts be sent out like BGA's for "re-balling"? Like all of you, we build, profile place and solder for reliability, but the time will come when one of these co
Electronics Forum | Thu Mar 19 11:31:14 EDT 2015 | duchoang
We remove the LGA, clean the pads, "re-ball" the LGA by solder-printing it, reflow and re-install it on board as BGA. That way, we don't need to apply solder paste on board. It works !!!
Electronics Forum | Tue Jul 27 06:34:14 EDT 2010 | bwet
Recently we have been placing and reworking quite a few Linear LGA DC converter modules. These are LGA packages with integrated passive components which become easily disturbed in reflow. Even with perfect bumping techniques on the LGA using the poly
Electronics Forum | Tue Sep 02 12:49:07 EDT 2008 | markhoch
Out for reballing??? The LGA's that I'm familiar with do not have balls. Pull them off with a BGA rework station. Clean up the part and PCB by carefully removing extraneous solder, paste the PCB, (or the bottomside of the LGA itself) and replace. Ref
Electronics Forum | Thu Mar 19 11:04:28 EDT 2015 | eliran
Hi, I need to replace a LGA component from assembled boards. What are the best methods (automated ones preferred) for this process? The main issue is how to apply solder paste for the fine pitch (0.4mm) on assembled board. Thanks, Eliran Ave
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