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 | Wed May 03 13:06:54 EDT 2000 | Sal
GUYS SEEING A PROBLEM WITH SOLDER PASTE LEACHING. THE PCB IS HASL FINISH , AND THE DEVICE IN QUESTION IS A O.O30" PITCH RESNET. THE SIZE OF THE PADS ARE 0.020 x 0.0.047 THOU , THE APERTURE SIZES ARE 0.018 x 0.042 THOU . THE LEACHING IS OCCURING DUE
Electronics Forum | Mon Dec 06 16:54:38 EST 2004 | Gopinath A
Hi, I understand that solder dipping of gold plated units (PCB or component lead) is not the ideal solderability test (leaching of gold in the solder bath being one reason). Would anyone have recommendations as to the ideal solderability tests for g
Electronics Forum | Fri Nov 09 13:41:06 EST 2007 | stepheniii
Don't forget that leadfree solder can leach the iron out of old solder tanks. Make sure yours is compatable with leadfree solder. You don't want the tank disolving, unleashing a tidal wave of molten solder.
Electronics Forum | Tue Dec 21 13:18:41 EST 2004 | patrickbruneel
Here a link to a study on leaching http://www.pbfree.com/pdf/groundwater_leaching/solder_leachate.pdf
Electronics Forum | Thu Nov 16 09:38:09 EST 2017 | vchauhan
I am curious to know anyone has used Samtec SEMA Solder Charge connector (SEARAY Seriese. I have done manufacturer's recommended solder paste and good reflow profile still the solder is leaching to the lead instead of becoming a solder connection. T
Electronics Forum | Fri Mar 26 17:12:17 EST 2004 | ben
I have recently encountered a new pcb design with a very high density of components on either side of the pcb. One of the suggested "fixes" is to use the smt pads as vias i.e. the via will be drilled thorough the centre of the smt pad. My concern i
Electronics Forum | Thu Jul 01 16:43:52 EDT 1999 | Dave F
| | | Could somebody tell me what means Leaching, ie: "Leaching of terminal end face exposing the ceramic"? | | | | | Roberto: Leaching, according to the SMTnet Library of Terms: | | | | Leaching. Dissolution of a metal coating into liquid solder.
Electronics Forum | Fri Apr 09 20:28:14 EDT 2004 | Ken
I have experience in this. My company offers Lead free SMT and Wave soldering. I have processed ImSn, ImAg, Enig, OSP in both smt and wave. Yes, silver leaching will occur. Yes, copper leaching will occur. High tin content solders disolve everyt
Electronics Forum | Thu May 06 19:21:24 EDT 2021 | markhoch
Verify your aperture reductions in the stencil. Are the solderballs always in the same location? Same size & shape? Is the solder leaching through plated thermal holes from the opposite side of the PCB? Are you using stencil apertures designed to min
