Electronics Forum | Mon Sep 17 19:33:27 EDT 2007 | davef
We have never studied this, but here's what we'd guess. If there are void in BGA solder balls at inbound: * A proper reflow recipe will eliminate the void. * A poor recipe will allow the void to remain and possibly generate additional void.
Electronics Forum | Wed Oct 24 12:34:49 EDT 2007 | resource
You could have look at LASER QUADRA Pick & Place Machine manufactured by TWS Automation, Italy (www.tws-automation.com). Its a small foot print, 3000CPH, 0402 capable, 20mil capable, BGA capable, machine with motorized feeders . Dispenser is an optio
Electronics Forum | Fri Oct 26 18:30:29 EDT 2007 | jmann30
Check at model MC-384 from Manncorp This model sells for under $50,000 including feeders, Cognex Flying Vision and bottom vision to handle everything from 0201 thru 12 mil pitch QFP and BGA`s
Electronics Forum | Thu Oct 25 20:15:23 EDT 2007 | wayne_
should have provide the link for all of you to look at it.... http://techon.nikkeibp.co.jp/article/HONSHI/20070926/139719/ to look at the real case study......:)
Electronics Forum | Fri Oct 26 11:09:13 EDT 2007 | hussman
Even a proper solder joint will fail if the rite stresses are applied to it. Sounds like you have an over heating issues, not a solder issue.
Electronics Forum | Thu Nov 01 11:10:28 EDT 2007 | rgduval
Anyone using or have used a handheld endoscope such as the BGA100 offered by SMT Tools is offering? I saw one this week at NEPCON, and am considering at least demoing the item to see how it would work in our process. Anyone have any opinions on thi
Electronics Forum | Thu Nov 01 22:32:57 EDT 2007 | lvzhu
CSP has pillow, the BGA's ball doesn't combination with the solder paste. also ,the 0402 chip aftet the oven ,the surface looks like many tin ball pile together. how solve this problem. thanks for your discuss.
Electronics Forum | Tue Nov 06 10:44:09 EST 2007 | tzawaide
Hi All, We are using BGAs from a new supplier, and the BGA solder balls are not collpasing properly. Can someone out there shed some light on what could be the root cause? Any help is greatly appreciated. Thanks!
Electronics Forum | Tue Nov 06 12:38:26 EST 2007 | ck_the_flip
Tony, search the archives for "hybrid profile". There's alot of good info. in there about running Lead-Free BGA's in a Lead process.
Electronics Forum | Tue Nov 20 04:48:21 EST 2007 | beta
Hi all, I have never had to run a product with BGAs on the bottomside of a double sided board. I was just wondering if this is a done thing ? or should I stay well clear. any replies appreciated. aj...
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