Electronics Forum | Wed Oct 31 09:09:35 EDT 2007 | russ
Small waves are fine, biggest problem is the little to no preheat length. This is reason that complex boards cannot be soldered without defects. They also do not handle thick PCBas very well either because of same issue. Most of these "benchtops"
Electronics Forum | Fri Nov 02 04:34:35 EDT 2007 | aj
Hi all, Thanks for the replies so far. To make things clearer. BGA is 35mm square. Leading edge of BGA hits 217 and then trailing edge hits 217 5 seconds later. So leading edge is reflowing when the trailing end is not. Coming out of the reflow
Electronics Forum | Thu Nov 08 06:12:03 EST 2007 | mattkehoe
Can someone point us in the right direction? We are trying to find a formula to determine the "cubic mils" of solder we end up with after reflow. (No components during the reflow) Some of the discussions we've had about it produced the thoughts bel
Electronics Forum | Mon Nov 12 10:47:53 EST 2007 | dyoungquist
I have never used a topaz but we are currently running a TP9. I can give you some feedback on a TP9 machine. Answer a few questions first and then I can tell you if I think the TP9 is a good fit for you. What size components are you loading? Low o
Electronics Forum | Mon Nov 12 13:28:25 EST 2007 | rfematt
We are looking for a Manual P&P machine. So far we have identified next systems: XMP-302D � Boir (KAR) LM901,902 � Fritsch SMTPlace 1000 � Manncorp FineLine � Manncorp (DMA) CAT-90SA � Advanced Techniques EXPERT-M,SA � ESSEMTEC The basic price rang
Electronics Forum | Tue Nov 13 21:59:42 EST 2007 | davef
This processes has the potential to cause barrel cracking and pad lifting, because the heating is very hot [troop crank-up the volume on their iron when they see thick boards] for a relatively small area on one side of the board. What do we suggest
Electronics Forum | Wed Nov 28 17:02:28 EST 2007 | joeherz
We use TraCon's TraBond 2112 for staking applications where larger gaps are involved. It is formulated for PCB staking applications. The material is very low sag and high viscosity. It's 2part and comes in handy bi-paks. Work life is 20-30min.
Electronics Forum | Wed Nov 21 15:37:46 EST 2007 | afm
We have been looking for an old machine (budget issues), and we have foud Juki 570L and Quad IVc to be around same cost. I have found some comments on the forum for the Quad (good in general), but not too much for the Juki. Beside the expected issues
Electronics Forum | Mon Dec 03 10:47:11 EST 2007 | slthomas
I thought you said that the parts that weren't wetting in reflow were the parts with epoxy. The question I have is do they wet in wave solder, and if they do, why does it matter what happens to them in reflow? Conversely, if they don't wet in wave,
Electronics Forum | Mon Nov 26 10:35:58 EST 2007 | slthomas
We've been using fids as badmarks on panelized boards, with reverse recognition so that an uncovered fiducial is a good mark. It's worked fine with 1.5mm fiducials but now we've run into problems with a board with 1mm fids and we can NOT get it to wo
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