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Electronics Forum | Tue Sep 07 22:15:26 EDT 1999 | NAZEEH CHAUDRY
| | | I have a zevatech 570 and 560 my boss want to place bga.s with these machines, Ive told him he needs to ugrade to newer machines. Zevatech say "no problem our machine are number 1". | | | these machines dont even offer bga selections. These mac
Electronics Forum | Tue Sep 07 06:14:27 EDT 1999 | Earl Moon
| | I have a zevatech 570 and 560 my boss want to place bga.s with these machines, Ive told him he needs to ugrade to newer machines. Zevatech say "no problem our machine are number 1". | | these machines dont even offer bga selections. These machine
Electronics Forum | Tue Sep 07 22:07:56 EDT 1999 | NAZEEH CHAUDRY
| | | I have a zevatech 570 and 560 my boss want to place bga.s with these machines, Ive told him he needs to ugrade to newer machines. Zevatech say "no problem our machine are number 1". | | | these machines dont even offer bga selections. These mac
Electronics Forum | Tue Mar 09 22:06:24 EST 2004 | Ken
Two words that will send shivers down any self-respecting rework professionals spine: HEAT GUN Not affiliated with black and decker or vidal sasoon hair dryers.
Electronics Forum | Tue Jul 13 00:40:44 EDT 2004 | Darren
Yes of course we are doing placement of BGA's with an IPII. However there is no front lighting so you can not inspect the balls. If the silhouette is square enough there is no problem with alignment. Just use the largest nozzle that will fit on the p
Electronics Forum | Wed Jul 14 16:59:52 EDT 2010 | swag
Solder paste on the pads will keep part aligned. If you do not use paste, you will need to apply tacky flux. You should not run without one or the other.
Electronics Forum | Tue May 01 20:39:41 EDT 2012 | davef
Good luck with that. A couple of things to think about ... * BGA self-align during reflow, just get 'em on the pads * Add a box [or four corner] legend on the bare board to help you position BGA
Electronics Forum | Mon Jan 14 22:52:48 EST 2008 | davef
Using larger pads on the corners is fairly common to improve self-alignment of BGA and CSP. For example, "9.3.2.8 Large corner pads and overprint The self-alignment of BGA or CSP can be improved through a design change. By utilizing a large board pad
Electronics Forum | Thu Jun 29 08:41:24 EDT 2006 | russ
I agree that a BGA may be the better/easier process overall, but it is not 3 dollars per assy better, I am in agreement that you should be able to handle QFPS just as well as a BGA. PBfree BGAs do not self align BTW, so one needs to keep that in mi
