Electronics Forum | Thu Sep 14 05:11:29 EDT 2006 | ?
All, We are a contract manuf. for electronics. Since changeover to RoHS we still have customers due to one thing or the other telling us to run Non-RoHS. They are not exempt. What do we do ? do we tell them that we are not running their boards and
Electronics Forum | Thu Oct 31 17:34:37 EDT 2013 | hegemon
Keep in mind that you may need to assure that there are no pure tin finishes remaining on your parts. A general idea is that parts with pure tin (RoHs) finish will need to be plated with tin-lead solder to avoid the possibility of tin whiskers formi
Electronics Forum | Sun Dec 11 22:55:22 EST 2016 | ppcbs
What type of flux is in your solder paste? Active or No-Clean? With lead free solder you really should be using an active flux. The lead free oxidizes during reflow if you are not using a Nitrogen or Vapor Phase reflow. So a more robust and activ
Electronics Forum | Sat Jun 02 08:47:25 EDT 2007 | mika
I almost forgot; If the pcb have HASL (Non RoHS) surface finish, then big fine pitch QFP:s could be shifted during reflow, beacuse of the un-even pad-surface... We have been trough that scenario also... But step No.1 is to make sure that the componen
Electronics Forum | Thu Feb 24 10:34:02 EST 2005 | Rob
Thanks Dave, From what I remember a lot of components went away from Silver Palladium to "base metal" terminations because of the difficulties in continuation of supply & stability of price. (Something about being mined in Chechnia or the Congo?) W
Electronics Forum | Sun Sep 11 01:25:34 EDT 2005 | Mika
I agree with prior postings, but there is no perfect yes/no answers, right (left)...? Only good questions to be answered. I think it is overkill to have an extra stencil, why do you need it? (That is if you have a proper stencil cleaning equipment).
Electronics Forum | Tue May 12 01:09:17 EDT 2009 | malmsteen
Thanks for replying Mr BoardHOuse. The product has to be RohS compliance. Surface finished is something that I am still considering and currently looking at either OSP or Immesion Silver. In short whatever combination that can produce high reliabili
Electronics Forum | Thu Aug 07 11:58:36 EDT 2008 | pbarton
We have experienced the same problem with Pd/AG and P/Ag terminations on precision resistive parts. The problem is dissolution of the termination metallisation into the bulk solder. This is exacerbated by the higher thermal profiles required for RoHS
Electronics Forum | Mon Apr 03 02:09:58 EDT 2017 | soldertraining
Restriction of Hazardous Substances (RoHS) bans products that contain a high level of hazardous materials from entering the market like the EU market. If we talk about PCB products - The printed circuit board services – including both conventional an
Electronics Forum | Mon Nov 04 07:31:54 EST 2019 | amitthepcbguy
As a manufacturer, I prefer plated nickel gold, electroless nickel immersion gold, immersion silver and palladium. These surface finishes are the best options to replace leaded surface finishes. These surface finishes can withstand higher temperature
