Electronics Forum | Thu Jan 22 10:21:46 EST 2015 | charliedci
I am curious to know how others are providing N2 for their lead free selective soldering process. If you are utilizing a nitrogen generator, is it a PSA type or Membrane type? I am trying to get a handle on nitrogen purity and what purity is necessar
Electronics Forum | Wed Sep 26 11:15:59 EDT 2001 | Hussman
What do you folks use for control on your wave solder process? Primarily after wave. I know there are a variety of "wave riders" that will assure proper wave solder parameters, but would like to know what down stream controls some are using. We ar
Electronics Forum | Fri Jul 08 04:09:59 EDT 2011 | leadthree
I hope to get some feedback here. I have a SMD connector that reflow-solders quite poorly (I guess solder paste or profile issue). On the X-ray I see strange bubbles, does it mean there are voids under pin? Generally I am not satisfied with the sol
Electronics Forum | Thu Mar 03 11:23:50 EST 2005 | Slow Ride
Generally QC is a different deptpartment than touch-up people. Most touch-up people are just general operators, so to keep their job they always see the solder joint as "not enough". Q.C. people are generally a bit better, but know they may be call
Electronics Forum | Tue May 21 07:46:58 EDT 2024 | tommy_magyar
Michal, Overprinting is the extension of the stencil aperture over the solder mask, to enable a bigger volume of solder paste on the pad, therefore bigger volume of the solder joint after reflow. https://youtu.be/WAIm-6BSaiQ?si=UMp9WSFal3vXFp8F as
Electronics Forum | Thu Mar 18 07:17:09 EDT 2010 | phomann
Hi, I have a Fisnar I&J500 Selective soldering robot that has failed. I think it is from around 2000. The Fisnar I&J500 base has a soldering attachment on it. As I understand it, the base controller sends it a 5 bit command to the soldering unit. T
Electronics Forum | Thu Aug 17 01:31:31 EDT 2000 | Dreamsniper
Steve, I'm using 5 Sn/1.5 Ag/93.5 Pb Solder wire with a melting point of 300 deg. C to connect my thermocouples on smd components for thermal profiling. I'm using a soldering iron with an adjustable temp. to be able to melt my solder wire. Temp is ab
Electronics Forum | Thu Jun 29 06:26:36 EDT 2006 | AR
Hi Slaine, The terminations are still present on the component but all the solder (including the pad finish) has coalesced on to the terminations. The termination that normally is shiny and bright in colour has turned matte grey on that zone where t
Electronics Forum | Wed May 03 20:19:31 EDT 2000 | Dave F
Sal: Sorry, sometimes (more often than I�d like to admit) I�m a bit dense. But first � Leaching. Dissolution of a metal coating into liquid solder. Leaching applies to liquid solder and is applied inaccurately to metallurgical effects, like diff
Electronics Forum | Thu Feb 24 00:37:08 EST 2022 | joshsvoboda
I have a pcb with an ENIG finish that is using a 144 pin LQFP and being soldered withSN100C/NC258 T4 paste. I used a oven profiler where the probes are taped down to the joint and the profiling software adjusts the program for the best profile for
