Electronics Forum | Tue Jan 06 16:31:41 EST 2015 | jacklucas
In switching to lead free processing, we find ourselves having over 400 PCB part numbers with Sn63 HASL finish. And there is no hope of quickly purging inventory and getting our drawings changed to call out a lead free finish. I want to avoid having
Electronics Forum | Wed Dec 21 17:11:47 EST 2005 | Mike Dolbow www.atotalgps.com
Has any one considered the melting eutectic of the plated part verses the eutectic of the paste it self. Inter metallic solids can form when mixing metals. Thus this causes solder joint reliability. Also a lot of vendors are putting out pure tin prod
Electronics Forum | Tue Apr 24 09:51:18 EDT 2007 | slthomas
Patrick, firstly, I don't disagree with you on the efficacy of or lack of good science behind RoHS. It's a bad joke and our industry is the victim that got punked. I simply don't see anywhere in that document that states they've got an exemption tha
Electronics Forum | Wed Apr 25 15:19:15 EDT 2007 | flipit
Steve, See the link below. See the out take from the link below. http://forum.europa.eu.int/Public/irc/env/rohs/library?l=/requests_exemptions/resistant_applications/hpdoc/_EN_1.0_&a=d The specific verbiage is, "This exemption request seeks to
Electronics Forum | Wed Apr 08 11:05:53 EDT 2009 | boardhouse
Hi, Need a little more info, 1) this board is definitely delaminated 2) this board looks like a Std FR4 board with 63/37 Hot air finish with probably 140 tg. material. Was this reflowed under lead free temps? 3) Do you Pre-bake product 4) What
Electronics Forum | Fri Feb 24 13:04:17 EST 2006 | patrickbruneel
Hi All, The change over to lead-free is as easy or as difficult as you want to make it The big problem I see with this lead-free transition is that there is no benchmark of acceptability and no defect data (yet) related to visual appearance of a sol
Electronics Forum | Thu Jul 20 10:34:15 EDT 2006 | Bill Csonka
John. My name is Bill Csonka. I am an x pcb designer now sales engineer representing Photocircuits Inc. out of Glen Cove, New York. Photocircuits is the first and oldest domestic PCB supplier in the USA originally founded in 1950. Traditionally, the
Electronics Forum | Tue Apr 24 18:21:30 EDT 2007 | flipit
Hi, The verbiage states lead finish on components and not solder used in assembly. I have found nothing that states that Swatch got an exemption. Although the 650 micron pitch spec seems to have come from the data Swatch presented in their execpti
Electronics Forum | Tue Mar 08 11:50:55 EST 2011 | pgoodyear
As a technician that does frequent board level repair / rework some issues have come to mind. I have been an electronics technician for almost 50 years. In that time I have seen the evolution of electronics from point to point wiring using vacuum
