Electronics Forum | Mon Dec 20 22:41:42 EST 2010 | grantp
Hi, We had it for a while, but had to take it out and replace it with normal convection. I mean the soldering quality is absolutely amazing, and the joints looked perfect, however it was a horror for tomb-stoning. We tried all types of stencil apert
Electronics Forum | Tue Dec 13 17:41:04 EST 2011 | davef
A Study Of 0201’s And Tombstoning In Lead-Free Systems, Phase II Comparison Of Final Finishes And Solder Paste Formulations http://sheaengineering.com/Documents/APEX%2008%200201s%20and%20Tombstoning%20phase%202%20paper.pdf CONCLUSION The condition
Electronics Forum | Mon Apr 16 17:00:43 EDT 2012 | markhoch
I'm doing an inpromtu survey.... I'm asking all Manufacturing/Process Engineers... Do you practice "5S" in your work space? (Desk, Cubical, Office, etc) I've been in the industry for almost 20 years.... I completely understand the concept of 5S. Yet
Electronics Forum | Wed Nov 07 15:01:18 EST 2012 | nikyta
Thanks Dave , my question is about Spopov want to try "Lead Free" SnBi (but uses it on Leaded finishes), but is worry about its low melting point (at this point, no longer 138 degrees as he wrote, but rather in an unknown and unpredictable range bet
Electronics Forum | Mon Dec 10 13:26:40 EST 2012 | dyoungquist
We are using our selective solder machine to solder a backplane with sixteen (16) 4x48 pin 0.080" connectors. Our first pass yield is about 85% meaning that 85% of the connectors come out with no bridges. Not quite as fine pitch as your connector a
Electronics Forum | Fri Feb 08 10:25:49 EST 2013 | emeto
That's what I mean: http://www.pcbunlimited.com/bm-w630-lead-free-reflow-oven-p-575.html?gclid=CLKDuZeBp7UCFe9aMgodFVAAVA http://www.pcbunlimited.com/bm-w430-lead-free-reflow-oven-p-557.html?gclid=CM_up7mBp7UCFYxDMgodSkQAbg these ovens are bigg
Electronics Forum | Wed Sep 18 14:12:40 EDT 2013 | pjchonis
Hello Bachman. SAC305 is the most common lead-free solder alloy, not only for wave soldering but also selective. Most of our selective customers (especially automotive) are using SAC305. What is more important than the alloy to consider is the flux
Electronics Forum | Sat Nov 23 12:39:18 EST 2013 | joeherz
We installed a Soltec Delta 3 a few months ago and have been trying to run with a VOC free no clean. We're using SN100C in the pot. We are spraying the material and have top/bottom preheat. Evaporation of the water in the flux is a bit of a stru
Electronics Forum | Sun Jun 22 13:24:49 EDT 2014 | davef
I don't know. We never had craziness like this before lead-free. You should have the yellowish-metal analyzed to be sure. Guessing: You're seeing this color on the terminations of components, not on the bulk of the SnX solder connection. If that's
Electronics Forum | Fri Jan 23 11:27:45 EST 2015 | charliedci
Per our selective solder provider, they recommend a PSA type generator to supply the needed 99.999% pure N2. The membrane type (which we have) does not provide the minimum (99.995%) purity necessary for lead free wave soldering. They happen to sell P
