Electronics Forum | Wed Dec 21 22:59:23 EST 2005 | Joseph Khiew
Dear all, If anyone familiar with the banned substance, Thiourea which is used during chemical solution of pcb with immersion tin. We have check with some of the labs but they are unable to provide such test report for the thiourea content on bare p
Electronics Forum | Thu Dec 22 08:57:08 EST 2005 | davef
Immersion metal baths also rely on alchemy-like magic. If you take a piece of copper and dip it into an aqueous solution of silver ions: Presto Chango! Within seconds the copper will be coated with silver. Of course, there is some additional magic re
Electronics Forum | Wed Sep 09 11:56:50 EDT 1998 | Robert Wells
What substances are emmitted when exhausting standard glue cure? Thanks, Robert
Electronics Forum | Tue Mar 14 12:16:10 EDT 2023 | proceng1
Are these molten solder bubbles, or another substance "foaming" up on the surface?
Electronics Forum | Mon Nov 06 18:02:25 EST 2006 | stepheniii
Does the hardware in question actually have non-ROHS material in them or is it strictly a paperwork issue? Would you be able to buy the hardware and have a lab test it for the banned substances? If they are not there, I wonder how many you would ha
Electronics Forum | Wed Dec 05 03:52:15 EST 2007 | longlee
I disagree with the opinion what use the same reflow oven for both Lead and Lead-free process. As you know, the RoHs restrict the presence of certain substances, including Pb,Mercury,Cadmium,Hexavalent Chromium,PBB,PBDE. Maybe yon don't find any iss
Electronics Forum | Tue Apr 05 20:45:36 EDT 2022 | stephendo
Try adipic acid to clean your nozzles. It is a powder and can be awkward to work with as a result. But you might end up preferring it. Also look where the substance is not. There are two PTH joints without it. And that chip cap is closer to the PT
Electronics Forum | Fri Sep 15 05:48:24 EDT 2000 | carsonho
Have any experience that Sn/Pb plated integrated circuit products will appear some rainbowbridge-like substance after exposing at conditions of 121degC, 100%RH and 15psi for 48hours or above? The rainbow bridge substance was analyzed by EDAX and fou
Electronics Forum | Fri Sep 15 05:48:11 EDT 2000 | carsonho
Have any experience that Sn/Pb plated integrated circuit products will appear some rainbowbridge-like substance after exposing at conditions of 121degC, 100%RH and 15psi for 48hours or above? The rainbow bridge substance was analyzed by EDAX and fou
Electronics Forum | Mon Jun 13 11:56:29 EDT 2005 | patrickbruneel
Hi All, There are IPC drafts in circulation IPC-1751, Generic Requirements for Declaration Process Management and IPC-1752, Materials Declaration Management. To me it looks like the regulations become more tolerable towards lead in solder Lead in s
winsouce.jpg)