Electronics Forum | Sat Jan 06 02:12:36 EST 2007 | backbenchers
i have 1 customer using our reflow oven, he is facing the problem that after taking the boards from reflow oven ICs & some resistors felt down.they are using our glue dispenser also, the glue is not fixed with the component. wht will be the solution
Electronics Forum | Sun Jan 07 23:26:27 EST 2007 | KEN
I had the same problem. However, now that I switched to crazy glue the parts stay on the board.
Electronics Forum | Tue Sep 01 02:23:09 EDT 2009 | isd_jwendell
Have you profiled at the problem side of the part?
Electronics Forum | Mon Aug 31 07:56:39 EDT 2009 | d0min0
Hello, since some days we are facing strange problem with SMT component reflow paste on one side of the component is reflowed correctly while the other side is 10%-70% non-reflowed (same component on 3 positions per module, alwyas the same land pad)
Electronics Forum | Thu Sep 03 04:53:31 EDT 2009 | d0min0
to summarize - 3 components are placed on a single module x 8 on pcb - 2 anodes & 1 cathode are infected (so no component for us) - the problem does not look like wetting problem as the component and land pad is wetted, but the paste is not complete
Electronics Forum | Thu Sep 24 09:15:42 EDT 2009 | markgray
I had this issue a few years ago with Kingbright LED's. The problem was extreamly random. When i changed to a different datecode my problem went away.
Electronics Forum | Wed Feb 07 16:16:10 EST 2007 | mr
I have seen this before. Check: --Vibration of belt --Interference (part getting "brushed off" while reflowing bottom-side components --Some glues' cross-linking mechanism is impaired by the flux during migration in reflow, redering the glue useless
Electronics Forum | Fri Oct 07 15:52:09 EDT 2005 | jimmyjames
what make/model/manufacturer? :
Electronics Forum | Sun Dec 17 17:40:49 EST 2006 | darby
Thanks AJ, It is looking like a CTE issue.
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