Electronics Forum | Fri Feb 03 17:25:47 EST 2012 | tombstonesmt
We've been having issues with our current process of oven profiles. We use a high temp adhesive to bond the thermal couples to the desired components. The issue of them letting go or releasing during reflow temps are hit or miss. Majority of our buis
Electronics Forum | Mon Feb 16 10:33:58 EST 2015 | rgduval
Drilling a hole, and attaching the thermocouples underneath the part is the recommended way to profile for a BGA, unfortunately. It allows the best method of collecting specific data, including any thermal sinking/shadowing that the BGA creates. Ho
Electronics Forum | Fri Nov 25 05:16:44 EST 2016 | slavek
Hello, I want to ask on suitable temperature profile for PCBs with ENIG final surface finish. I know that it is complex question with many unknowns. When the PCB will be standard 1,5 mm 35/35 Cu and the amount of components will have any influence o
Electronics Forum | Fri Jun 06 07:23:18 EDT 2003 | johnw
Hi Kevin, the profile doesn't actually qualify something as lead free or not it's purely the Pb content of the assembly that does this. Currently the understanding of the limitations of the lead in the jont is 0.1% by weight or less. So as long as y
Electronics Forum | Fri Feb 18 18:01:51 EST 2005 | Grant
Hi, Using good profiling makes all the difference. Its not easy, and thats where good software helps make it easy. If it's easy, then you tend to do it often, so things stay good. I like using this KIC software so much I wanted to take the profiler
Electronics Forum | Wed Aug 27 14:19:40 EDT 2008 | grics
Have you given this information to your paste manufacturer???(Profile, Pics of defects?) The profile seems to look ok(without knowing paste info...) I think the ramprate looks a little aggressive but it could be the scaling of the profile and the i
Electronics Forum | Fri Oct 23 08:24:52 EDT 2009 | rgduval
Eric, I haven't used this oven; but, our Heller has built in profiling. Essentially, attach the thermo-couples to a board, and the appropriate point on the oven, and run a board (without parts). Your paste manufacturer will have published a reco
Electronics Forum | Fri Nov 06 12:15:19 EST 2015 | derrikf
Also, for anyone who's taken an interest in this thread: We just received samples of Henkel/Loctite's room temperature stable(yes, you read that right), halide-free, lead-free pastes, both the GC 10 and the GC 3W (which is a water soluble/wash paste
Electronics Forum | Thu Aug 28 23:15:44 EDT 2014 | phyllishwl
Hi all, Our production reported that they found 3 panels out of 53 panels with strange phenomenon after reflow. 1/ Blister / Delamination of PCB panels, 2pcs blister/delamination under solder mask, 1pc under Gold plating at Gold finger 2/ Silkscr
Electronics Forum | Thu Jun 21 16:24:24 EDT 2001 | jdtpfacreate
OEM Boy, Reflow depends on your paste type also. Are you using lead free or will you be going to lead free soon? If your are going to you might want to consider developing two different profiles for lead free and leaded pastes. Good Luck! J.D.
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