Electronics Forum | Thu Nov 17 13:26:42 EST 2005 | chunks
yeah, i tried um once and they worked great. gwad dam management wouldnt buy em though.
Electronics Forum | Thu Nov 17 15:40:03 EST 2005 | Kornholio
I purchased them too but it was a conspiracy that they didn't work because an operator told management and he took all the credit.
Electronics Forum | Thu Nov 17 17:35:06 EST 2005 | russ
If you only need to keep the threads clear you can use nylon screws and then remove them after they get cool.
Electronics Forum | Wed Nov 23 07:39:14 EST 2005 | chunks
Shorted to the sheild or the BGA balls are shorted? Sheilds move a lot during reflow. If this is the case, place some adhesive or peelable solder mask on either side of the shield and baords to stop it from moving.
Electronics Forum | Wed Nov 30 10:12:19 EST 2005 | james
Could anyone tell me what the results would be if I used Lead Free parts with Lead Paste? Will there be solder joint issues? This is kind of new to me to start implementing the lead free process. Thanks for any comments.
Electronics Forum | Fri Dec 16 21:16:38 EST 2005 | Frank
The RoHS legislation says that it possible to have an exception from lead. That means that You are allowed to have Pb in the solder joint! While the component and the pcb must be RoHS compliant! Isn't that fun?
Electronics Forum | Sat Dec 17 08:07:06 EST 2005 | grantp
Hi, What worries me is that a lot of people speak about what they have heard, but there is no firm facts on exactly what the situation is. I did a seminar on lead free a while ago, and was told that going lead free on the components while running l
Electronics Forum | Mon Dec 05 21:49:07 EST 2005 | davef
Methods for reballing BGA are: * Reballing preforms [SolderQuik BGA Preform winslowautomation.com ] * Reballing screens [marketed by many including: Mini Micro Stencil, Pace, Topline]
Electronics Forum | Thu Dec 01 16:14:45 EST 2005 | chunks
You need to verify if you're getting up to the needed temps. It looks like you're not. I'd say it started to reflow but never reached a long enough time. Nitrogen may help with further wetting.
Electronics Forum | Thu Dec 01 17:55:26 EST 2005 | russ
Your paste is oxidizing in reflow and not coelescing (spelling?) We failed kester W.S. for reasons such as this. There NoClean is a little better but we do not use that either. I would switch pastes and I will bet that your problem majically disapp
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