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
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 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 | Fri Mar 20 21:07:27 EDT 2015 | gabinocf
Thanks by the information provided for you. How can we prevent the Dendritic Growth, exist some table where i can see the quantity of flux that i can apply to the PCB. Thank You.
Electronics Forum | Sat Mar 21 09:46:13 EDT 2015 | gabinocf
Thanks Guys by your comments, I am talking about Dendritic Growth, I asked about flux application because the residues of flux can be a factor of the Dendritic Growth right. Thank You
Electronics Forum | Wed Mar 25 20:44:18 EDT 2015 | gabinocf
Thanks by the information Mike, Another question for you is, the clean process must be developed even if we are using flux "no clean". Regards
Electronics Forum | Thu Apr 02 10:50:24 EDT 2015 | fnorradd
Hi All, Does anyone have any companies where I can purchase all the spares for JOT conveyors. Bearings, belts, motors, etc. Any feedback much appreciated.
Electronics Forum | Wed Apr 08 00:21:28 EDT 2015 | tchaovalit
I'm looking for Pick and Place machine with Up Looking Camera. Pls advice where i can find it. Regards Chaovalit
Electronics Forum | Wed Apr 08 11:15:20 EDT 2015 | emeto
Probably 99% of machines on the market has it.
Electronics Forum | Thu Apr 09 07:42:36 EDT 2015 | kevinb
Thanks for the info. We tried the reset button but no luck. The UPS is not powering up. We checked the incoming power and it was good. So we took the UPS out and took off the cover to check for blown fuses. We also checked the reset button and it
.gif)
