Electronics Forum | Mon Jul 31 20:34:58 EDT 2017 | zsoden
Hi all, it has been a bit of a delay but I've finally had a chance to do some further investigation on this. First off, we spend some time to clean the solder bath using Kester Solder Saver and scooped out a lot of crap. We then added about 5kg of
Electronics Forum | Thu Dec 16 11:54:45 EST 1999 | Mike Naddra
At reflow an inert atmosphere is used to mitigate the occurance of oxidation, to me the decision weather to move from an inert atmosphere is based on several things ; PCB surface finish - are you using a HASL finish, OSP or another surface finish and
Electronics Forum | Thu Dec 16 17:50:03 EST 1999 | LUIS LOPEZ
Hi, I am new on this, I want to ask you what is HASL finish, OSP, FPY, ppm. About to eliminate the Nitrogen in reflow soldering, a listen about one solder paste that no requires Nitrogen, the solder paste is called Indium, I don't know if this is tru
Electronics Forum | Fri Oct 14 14:00:35 EDT 2005 | patrickbruneel
Mika, If I understand you correctly you compare hole fill of Ni/Au plated boards in a lead-free process with HASL 63/37 boards soldered with leaded solder. If this is the case you might be facing the challenges in Pb free wave soldering with the lim
Electronics Forum | Tue Oct 18 00:31:17 EDT 2005 | KEN
I suspect the problem is a surfactant issue in your flux. I have seen where boards are fluxed, hit the solder fountain and come out like they never touched the solder. There was an inadequate surfactant between the solder and the PCB. I know you
Electronics Forum | Mon Jun 05 18:45:07 EDT 2017 | zsoden
Hi Steve, I agree with your assessment, it would certainly seem like the pads are de-wetting. But what could be the cause of this? Contaminated solder? The boards are new out of vacuum sealed bags (with desiccant sachets), so I can't see it being the
Electronics Forum | Thu Aug 03 14:19:50 EDT 2017 | sumote
Looking at picture 20170801_095540.jpg, the leads look pretty long to me. This would cause you to have to lower your solder pot so that they don't get hung up. Have the leads cut to ~0.150" (0.200" max) long and then raise your pot up.
Electronics Forum | Sun Aug 06 19:05:38 EDT 2017 | zsoden
OK thanks. I had assumed that since the soldering was generally smooth and we were having no issues with bridges that the flux would be operating fine. But there really isn't much left to check so I'll get my profiler fixed (the thermocouple has been
Electronics Forum | Tue Apr 27 15:43:41 EDT 1999 | Joseph Holmes
Another basic soldering question. I notice that lead-free solders have become required for plumbing applications due to legislation. In a local hardware store, I noticed the existence of lead-free solders (based upon tin-copper I think) with a melt
Electronics Forum | Tue Apr 27 16:21:09 EDT 1999 | Chrys Shea
| Another basic soldering question. I notice that lead-free solders have become required for plumbing applications due to legislation. In a local hardware store, I noticed the existence of lead-free solders (based upon tin-copper I think) with a me
