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 | Mon Mar 01 12:50:47 EST 1999 | justin medernach
| Hello! SMT professionals, | | I do not know if anyone posted this question before. | Last week, I reflowed our newly designed thin Rigid-Flex pcb with 0.040" thickness. I found all of pins of a TQFP48 ic did not get wetted. I could see on the hee
Electronics Forum | Mon Sep 08 09:11:30 EDT 2014 | jdenuzzia
We resolved this issue a few weeks ago. It was a configuration mismatch in the oven (MR933+)software with the onboard O2 analyzer.
Electronics Forum | Fri May 18 14:40:16 EDT 2018 | raylawre
Currently doing weekly to get a good baseline. Once its satisfied that the oven is stable/repeatable, then it will probably go with a monthly PM. We had an OvenRider in house, so no need to reinvent the wheel and make another vehicle. Keeping it in g
Electronics Forum | Tue Mar 27 01:52:23 EDT 2018 | buckcho
Hello Diego, are the components missing on the first side or the second side. Like Mr. Evtimov said, you can check before the oven the pcbs's visually and see what happens after the oven. In this way you can see if it is the oven for sure. Then there
Electronics Forum | Sat Dec 01 21:59:35 EST 2007 | kenferrer
Hi Eng. Yumex in our company we're using 9 zones air convection oven. When the technology on Lead Free came along conversion from non-lead free to lead free viceversa was frequently done but there's no problem on contamination. Where is your company
Electronics Forum | Wed Dec 05 10:58:59 EST 2007 | shrek
Mr. Long, me lad, I don't follow. You say stuff about RoHS and all the banned materials covered by RoHS, but what is your theory on how banned substances can get on a RoHS board if you are running both Pb and Pb-free on the same oven?
Electronics Forum | Sat Feb 28 04:17:17 EST 2015 | thompson
Hi Mr.Syed Shahrat, Do you also need the Good supplier of SMT reflow oven? We are from HB Automation in China and we offered the machines to the Flextronics and Continental automotive. My email：tanglg@sz-hb.net , if any interest, please just let me k
Electronics Forum | Wed Feb 02 15:12:44 EST 2000 | Chung H. Park
Mr. Kim: The answer to your question depends on the type of mix you are dealing with. Here is the approach you should be taking to answer to your question yourself: 1. Establish the reflow process specifications for products. 2. Profile your p
Electronics Forum | Tue Nov 02 05:28:24 EST 2004 | rlackey
Hi Chunks, That would be due to Mr Dumont asking for recommendations on types of ovens! Yes, I agree paste is a major factor, as is type of board (size, construction, palletisation, heat requirements etc), but also real experiences from users help
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