Electronics Forum | Thu May 26 07:50:33 EDT 2011 | scottp
What process steps have been completed before the cross-section? What type of devices have solder cracks? Are the cracks found after just normal processing or after some type of validation testing? It is very unlikely to be a heating/cooling issue
Electronics Forum | Fri May 27 05:16:28 EDT 2011 | aj
Hi, There are quite a few suppliers so you could have a lot of work on your hands trying them all. Do a bit of research finding out what paste all the big guns use? they spend a fortune doing evaluations etc But you should get at least 3 different
Electronics Forum | Tue May 31 22:40:24 EDT 2011 | bejrananda
HI All, Please kindly advice me, I have project that it has DPAK part (MPN:SUD25N15-52 E3 Plating:100% Sn matte)which locate on bottom side (1st reflow), Good wetting for 1st reflow.. but .. when I run Top side (2nd reflow).I found that this D
Electronics Forum | Tue Jul 19 09:14:49 EDT 2011 | kahrpr
All I can tell you about what people do with solder paste at the end of the day or for the weekend is. What the manufacturer recommends. What people say in public? What companies actually do as far as reusing it? I am not passing judgment on 1 or 3
Electronics Forum | Wed Jul 20 08:40:27 EDT 2011 | mosborne1
Umar - This is usually seen when the lead frame in the die attach is cut with a diamond saw instead of a lasar. We have seen this problem years ago from HP 7 segment displays. If you have Enviromental box (tenney box) you can temp cycle them from 0 d
Electronics Forum | Thu Jul 28 19:08:05 EDT 2011 | garym4569
Right now we are mainly using it in bypass mode until we can program our new inspection recipes. We also tried setting a quick inspection program just to see if bypass mode was not working correctly. Still will not handle pcb transfer correctly. I
Electronics Forum | Thu Jul 28 21:32:06 EDT 2011 | rway
We are using 2.7.7. I have two M1 systems, but the sw is the same. I am not at work at the moment, but I will look tomorrow and let you know. On a side note, the conveyor will run continuously when in bypass mode. It does sound like you have a tra
Electronics Forum | Mon Aug 22 10:15:30 EDT 2011 | davidalvarez
we have never had a problem using no-clean flux as far as far as shorts and testing problems, using high pressure test probes helps overcome this. The problem we have had is if a unit comes back down the line a couple of years later we notice that t
Electronics Forum | Fri Aug 05 09:37:11 EDT 2011 | rgduval
From the fine SMTNet archives: http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=12824&#Message54659 There are a few other threads available, as well, by searchign on PCB Delamination. Delamination post reflow is almos
Electronics Forum | Fri Aug 05 17:34:30 EDT 2011 | bobbydur
Hi, I have a faulty intermec printer CPU board. I'm probably in the wrong place but if anyone can give me some help, I would really appreciate it. I manage to connect an incorrect thermal printhead to the printer and I think it has damaged the CPU
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