Electronics Forum | Mon Nov 09 07:21:02 EST 2009 | CL
Good Morning, I have seen many posts regarding BGA voiding being excessive and what can be done to better the condition. I have a customer that has an assembly that we have had a diufficult time with. We have spent a lot of time debugging the proces
Electronics Forum | Sat Oct 18 09:30:43 EDT 2008 | hussman
Sounds like a part problem. You can SOMETIMES over come this with a hotter profile. We see this a lot with brokered parts. Seems like a lot of people are rejecting parts because a lot of companies haven't perfected their RoHS process, yet produce
Electronics Forum | Sat Jun 02 08:47:25 EDT 2007 | mika
I almost forgot; If the pcb have HASL (Non RoHS) surface finish, then big fine pitch QFP:s could be shifted during reflow, beacuse of the un-even pad-surface... We have been trough that scenario also... But step No.1 is to make sure that the componen
Electronics Forum | Thu Oct 21 02:31:27 EDT 2010 | rok
OGER 4003C bounding to Aluminum I am hoping someone might have the solution to my problem I have the following PCB: RO4003 Thickness: .2mm Layer: top single/ bottom ground plane Finish: silver top and bottom .2um Size: 3mmx6mm I need to bound/groun
Electronics Forum | Tue Oct 17 03:13:10 EDT 2006 | charless
Apoligies Steve if I did not explain myself clearly. We have made the same design using the same RoHs compliant components (which I am assured by the suppliers are process temperature capable) with both lead and lead free solder. Without wishing to
Electronics Forum | Wed Nov 07 12:29:41 EST 2007 | oswaldorey
Although greatly publicized and many papers on the subject, I wish to hear experiences from the field from professionals who have migrated from SnPb wave soldering to PbFree wave soldering. I am being pushed by one of my largest clients, an internati
Electronics Forum | Wed May 19 17:43:25 EDT 2010 | pforister
Hello, I'm having problems with voiding on an assembly that has a GPS hybrid with balls much like a BGA. This is a RoHS assembly using no-clean solder (Kester EM907). The voids are at or above 25%. I use an 8 zone oven where I peak in zone 7 and
Electronics Forum | Tue Aug 25 03:24:11 EDT 2009 | fiona_j
Hello, I have been recently bringing a new RoHS wave soldering machine into production. Unfortunately, I am finding many of the boards are experiencing blow holes. It is always silver plated PCBs and I believe it is related to moisture ingress. I n
Electronics Forum | Mon Nov 22 13:26:33 EST 2021 | dontfeedphils
I purchased, ran, programmed, and maintained a RPS slide for a number of years and can't say that I had any major complaints about it. It ran well as long as it was maintained well (which is no different than any other SS I've worked on). Support w
Electronics Forum | Tue Oct 25 16:27:46 EDT 2005 | stepheniii
It is not OK to use leadfree BGA's with a lead process. Other parts "should" be reverse compatable. But I first saw problems over 5 years ago with Paladium leads and a lead process. Don't confuse saying "it's ok to use lead free parts in a leaded p
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