Electronics Forum | Fri Feb 22 18:36:36 EST 2013 | austinpeterman
Has anyone experienced bridging on topside (solder destination side) surface mount devices after wave soldering? We x-rayed 100% of the placements after smt re-flow with no issues. When the same placements were x-rayed after the tht wave solder pro
Electronics Forum | Thu Mar 21 16:45:31 EDT 2013 | dyoungquist
We have been using a Heller 1707EXL (7 zones + 1 cooldown zone) for lead free (ROHS) soldering since 2007 with good results. I wouldn't go any lower than 7 heat zones though. If I may brag a bit....The IPC-7095 revision C standard was released a fe
Electronics Forum | Mon Mar 25 10:22:20 EDT 2013 | rgduval
You mentioned that you changed the layout some, and this can be essential in this type of process. If the SMT parts and TH leads have inadequate spacing on the bottom side, shorts may be inevitable (someone else will have to advise what the recommen
Electronics Forum | Mon Oct 07 22:06:43 EDT 2013 | action_101
I successfully inspect solder on plcc's with angled cameras on the yestech we have. In the past I have successfully inspected for solder with angled cameras on mirtec machines for both plcc's and qfn's. Other than inspecting solder on those two types
Electronics Forum | Wed May 15 12:53:19 EDT 2013 | mchawg
I am having difficulty programming/inspecting a large SMT Relay. It is a dual in-line through-hole package with 5 leads per side formed to a gullwing configuration on .100" pitch. We have programmed it as a SOW10 pkg and got usable lighting values bu
Electronics Forum | Mon Jul 01 13:19:55 EDT 2013 | emeto
I always look for a toe fillet if the design allows you to. Many times the pad design is close or exactly the size of the leads which makes people to touch it up right away. I told them hundred times not to but...Luckily I have 3D x-ray and I can tel
Electronics Forum | Fri Jul 12 22:15:56 EDT 2013 | ericrr
Sorry to build up your hopes. The latest thing to hit the air ways at work, I was accessed of fiddling with the oven settings, because there were reports of "cracked joints" there was no mention of where the cracks were, cracked at the pcb or cracke
Electronics Forum | Fri Oct 04 16:08:28 EDT 2013 | hegemon
Same idea but simpler execution. Verify Solder pot temperature. Verify Temperature of Solder as it leaves the nozzle. Verify preheating gets your PWB up to 90C-120C prior to soldering. Check machine speed, verify 4 seconds contact with solder at
Electronics Forum | Sun Sep 29 13:04:58 EDT 2013 | KIC-Tech Service
Sr. Tech, As far as I’m aware, most if not all, manufactures of thermal profilers offer K type thermocouples as a standard for profiling in the electronics manufacturing industry. In my decades of experience in the reflow and wave solder industry, t
Electronics Forum | Thu Nov 14 10:24:53 EST 2013 | jaimebc
Recently, we have been experimenting with the 1.8/2.5 nozzle to be able to solder leads that are near an SMD. This pcbs were not design for selective solder, so we are trying to work within this limitations. I found the 1.8 nozzle very hard to insta
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