Electronics Forum | Fri Apr 13 12:37:35 EDT 2001 | edylc
>>> gold finger was covered by a Kapton tape and it was done offline away from the Screen printer or rather from the SMT lines itself, we are using an ENIG Pcb's , the process doesnt need a wave soldering ....however at the final end of the line ,
Electronics Forum | Tue Jul 27 09:28:34 EDT 1999 | Bill Bannister
We are currently using a 65/35 solder for our wave process but are considering switching to a 63/37 for a substantial cost savings. No one here seems to know why we everused a 65/35 formulation in the first place. I understand 63/37 to be pretty much
Electronics Forum | Thu Feb 13 07:13:39 EST 2003 | davef
Tell us more about the location of the bridging [ie, front-to-back, back-to-back, front-to-front, etc]. Thoughts are: * Your annular ring around the hole seems large. You have 0.007", consider 0.003" to be the minimum. Your board fabricator can gi
Electronics Forum | Thu Jan 19 13:53:06 EST 2006 | sarar
Hey guys - our lab has some data and photographs available for the MS2 for use in wave solder from some of the studies we have performed for P Kay. There are other versions being studied, but that is the only version available to market currently.
Electronics Forum | Wed Jun 25 11:24:20 EDT 2008 | namruht
I do not have a lot of specs at the moment. I just wanted to get some opinions and some of you thinking. I will get some part specs and add to this post later. WE are running a pretty big PCB and ther are some connectors on the edge of the board. T
Electronics Forum | Wed Jan 27 13:55:47 EST 2010 | patrickbruneel
Randy, Thank you for the acknowledgment. The IF2005Mz is a solvent based flux (not water soluble). I agree with you that the original IF2005M had a very narrow process window. In 2000 we modified the blending procedures and blending equipment which
Electronics Forum | Mon Feb 28 13:13:25 EST 2005 | russ
ING, you had to nake it difficult didn't ya! It appears that all of your parameters are okay. When you state that "sometimes there is a residue" is it liquidous or dry? Is your spray fluxer an ultrasonic or a spray gun head? You may not be getting
Electronics Forum | Mon Feb 28 11:31:08 EST 2005 | russ
This sounds a lot like a profile that is killing flux activity prior to wave immersion. What is your topside preheat temp just prior to hitting the wave? What type of preheat do you have, convection or radiant? Are you using a chip/turbulent wave
Electronics Forum | Tue Aug 04 12:15:33 EDT 1998 | Steve Gregory
| | | | I am looking for some design guidelines (length, width, spacing) for solder thieves which are placed behind trailing pins of wave soldered SOICs. I'd appreciate it if some one could direct me to the appropropriate reference. | | Also, has an
Electronics Forum | Tue Feb 19 19:36:21 EST 2002 | davef
You weren�t clear but I assume the problem is not widely distributed and affects only a few parts on each board. Do this trick: * Cut a ~1� piece of fairly serious wire, like 18 or 12 AWG. * Strip the insulation. * Gear-up with gloves, glasses, and
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