Electronics Forum | Wed Dec 01 19:21:15 EST 2004 | cmiller
You can make one out of a stainless steel tank pretty easy. Cost maybe $1000.00. You will need some hot plate type heaters and some copper tubing with a water flow source to keep the vapor down in the tank. We used two fluid types so one blanketed t
Electronics Forum | Mon Nov 07 11:26:23 EST 2005 | CW
How large of chip capacitor can we use reliably? I��ve heard they tend to crack. I��ve also heard if you pre heat the larger chip caps (1812 and above) before vapor phase reflow, they won��t crack. If I use 2 mil copper for a power supply board, a
Electronics Forum | Wed May 12 11:55:08 EDT 2010 | pbarton
We are using VPS, but only for high mass assemblies. As the other respondent has suggested if the mass of the assemblies is very low then difficult to control temp. rise times to within the normally accepted parameters. The Rehm equipment does seem
Electronics Forum | Wed Nov 17 05:20:38 EST 2010 | jlawson
Also please contact Rehm Thermal, they make best Vapor Phase systems in terms of cost of onwership - less galden usage than Asscon or IBL, have more controllable ramp rate control vs the other vendors also...use patented galden injection on demand an
Electronics Forum | Fri Mar 04 01:08:19 EST 2011 | kemasta
Thanks davef Bridging:- There is no heat sink on the BGA, the heat sink will be fix after relow. I do believe paste had something to do with it, but currently this defect didn't appear so oftenly, so we think that the main root cause is not from the
Electronics Forum | Thu Sep 03 01:15:52 EDT 2020 | kylehunter
> The problem that we have seen applying NC flux > (EF2210) at selective solder is that the flux > overspray (relative to the nozzle path) did not > see high enough temperature to activate the flux > and turn it to a non-conductive
Electronics Forum | Wed Jul 05 01:22:29 EDT 2006 | grantp
Hi, When I started out and we were the same we got an old MYDATA TP9-2U. It places everything, and you should be able to get a cheap one second hand, that will perform very well. They have vision as well, as an options, and that works very well. I w
Electronics Forum | Mon Jul 26 19:37:47 EDT 2004 | Grant
Hi, It was funny. The sight of 3 men standing around the microwave daring each other to push the start button, and then freaking out when the whole thing looked as though it was going to explode was funny. I guess you have to try these things! Tho
Electronics Forum | Mon Dec 16 10:05:29 EST 2002 | Grant Petty
Hi, Thanks for the info. We are reflowing the boards, but just barely. Sometimes we get the QFP in the middle of the copper area not reflowing, and it's pain. The joints are dry, and I am not sure if it's caused by lack of heat, or the flux going ba
Electronics Forum | Sun Dec 11 22:55:22 EST 2016 | ppcbs
What type of flux is in your solder paste? Active or No-Clean? With lead free solder you really should be using an active flux. The lead free oxidizes during reflow if you are not using a Nitrogen or Vapor Phase reflow. So a more robust and activ
