Electronics Forum | Sun Mar 02 01:56:53 EST 2008 | rfematt
Does anyone have used Heller 1700SX (2001) or Heller 1700EXL (1999) for lead free? I found some references in this forum for Heller 1500 but anything for last ovens, just wondering if they can be used though they may run slow.
Electronics Forum | Sun Feb 01 07:50:07 EST 2009 | davef
The concern about lead contamination of lead-free solder has to with zone refining. For more, look here: http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=30315
Electronics Forum | Wed Mar 21 07:44:19 EDT 2012 | cuervo
Hello ! I have a vitronics 500s ( five zones), and the solder paste is ALPHA OM-338-PT lead free. have anyone a profile to start and test, i need some reference temperatures.and conveyor speed thanks !!!
Electronics Forum | Mon Dec 30 08:14:45 EST 2013 | jax
I was unaware of any Pb-Free process capable FR-1 laminate... not to mention capable of Though Hole plating that would be expected when wave soldering. What is the Td and Z-expansion for the laminate you are using?
Electronics Forum | Thu Apr 15 10:58:16 EDT 2004 | mwg9184
I am trying to put a center support on a wave solder machine for lead free soldering. My problem is that every metal I use is interacting with the lead-free metals and thus eating away the center support. I have tried titanium, stainless steel. I am
Electronics Forum | Thu Dec 09 15:19:21 EST 2004 | nrocco
Can anyone point me in the direction to find some IPC standards for lead free solder joint reliablity tests, such as shear tests, pull tests, vibe tests, enviroment tests, etc. I need to know what the specs. are on all aspects of reliability and how
Electronics Forum | Wed Nov 09 08:33:32 EST 2005 | gregp
Sounds like the vision is having trouble deciphering what is the component and what is the background. The problem is what if the plating is inconsistent (sounds like it is)? In this case with front (reflective) lighting the problem may never be so
Electronics Forum | Thu Dec 01 00:34:15 EST 2005 | pyramus
Guy's another question, how about any recommendation what type of adhesive to use as underfill for BGA during lead free process? Currently, we are only using Loctite 3609 & 3515 as adhesive we use 3515 as BGA underfill during normal leaded process s
Electronics Forum | Mon Mar 03 13:09:44 EST 2008 | dyoungquist
We are using a Heller 1707EXL for both lead and lead-free assemblies with no problems. The zones can reach the temperatures needed for lead free. The belt speed can be adjusted so I'm not sure about your "run slow" comment. Maybe the 1707 is diffe
Electronics Forum | Tue Feb 03 10:25:56 EST 2009 | milroy
Hi What is the surface finish you have? Following are true if you have HASL-LeadFree surface. I have had the same problem 3years ago and we did some micro-sectioning for further analysis, still the boards are functioning properly. But you have to
