Electronics Forum | Tue Apr 06 09:50:58 EDT 1999 | Justin Medernach
| Does anybody put QFP's on the backsides of boards? Can they be reflowed without falling off? Do you use adhesive? | I use a double sided reflow process all day, everyday. I've hung QFP240s with embedded heat sinks and they don't fall off. Yei
Electronics Forum | Wed Apr 30 07:45:05 EDT 2008 | gemengr
Yes, it is. there's a heat sensor under of 4 resister,look like it open now.I'm thinking to make a jumper right there to see it can power up the machine.(this's a little green box on top of the transformer)
Electronics Forum | Wed Apr 30 11:41:55 EDT 2008 | gemengr
It back running now, after shut it off over night, it power back up,look like the heat sensor under of 4 resistors is start getting bad.But i'll by pass it, if it happen again. Thank you for your in put.
Electronics Forum | Fri Feb 11 09:44:01 EST 2005 | pjc
A touched-up solder joint is never as reliable as one soldered correctly by machine. Touching up adds more heat thereby increasing the thickness of the intermetalic bond. Our goal is to have the thinest intermetalic bond in our solder joints. The int
Electronics Forum | Fri Feb 11 08:15:35 EST 2005 | davef
It sounds like you already know the answer. Hand soldering is much more stressful to a board than mass soldering, because: * It is more localized and there is no preheat. * It is more difficult to control. [Different connections require different h
Electronics Forum | Fri Jun 29 18:43:16 EDT 2001 | procon
Dear Danial, The only stupid thought is the one left only as a thought and not asked. The size of the board and the placement of the BGA on the board could play a big factor during reflow. If you are processing boards on an edge conveyor and the boa
Electronics Forum | Mon Oct 22 15:41:39 EDT 2007 | davef
Bruno The real question about your troop using Kester 951 wave solder flux on boards is: how is the flux applied and controlled. See, when you apply this flux with your wave solder fluxer, it is ideally applied in a metered fashion with your fluxer
Electronics Forum | Mon Sep 20 08:21:52 EDT 1999 | Mohammed saad
Hi all, We have a little discussion here about the suitable flux for a certain process, as all of us are beginners we need your advice. We are producing VGA cards and mother boards for PC's all components to be wave soldered are TH, the SMD is done
Electronics Forum | Mon Sep 20 09:02:34 EDT 1999 | Wolfgang Busko
| Hi all, | | We have a little discussion here about the suitable flux for a certain process, as all of us are beginners we need your advice. | | We are producing VGA cards and mother boards for PC's all components to be wave soldered are TH, the S
Electronics Forum | Tue Sep 21 02:51:06 EDT 1999 | Mohammed saad
Thank you all for your help. about your question Wolfgang, I am using no-clean solder paste from Kester. Mohammed | | Hi all, | | | | We have a little discussion here about the suitable flux for a certain process, as all of us are beginners we ne
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