Electronics Forum | Fri Feb 13 19:51:07 EST 2009 | joeherz
Update Received cross-section analysis for ENIG plated boards and am happy to report that we have no voiding issues. Intermetalics look great and no copper dissolution. No process parameters were changed, only the PCB plating. For now, we are onl
Electronics Forum | Fri May 24 09:16:36 EDT 2013 | grahamcooper22
you need to reduce your time above liquidus to as low as you can...maybe 10~30 secs to allow the solder to wet to the gold but minimise the amount of gold that is dissolved into the solder joint...try also reducing the peak temp to 200~210 deg C. Thi
Electronics Forum | Fri May 17 10:53:15 EDT 2013 | davef
ENEPIG or Imm Pd? Concerns about palladium as a solderability protection are: * Palladium is more difficult to process in fab than gold * Palladium solder alloys can be brittle, similar to gold, without proper soldering process and/or specification/
Electronics Forum | Thu Sep 16 17:22:16 EDT 1999 | DaveJ
We have some SMT components with gold plated leads. They're actually LCC led packages. A good solder alloy to use would be Indium / Lead to reduce tin dissolution into the gold and avoid the resultant brittle intermetallic compound. However, a recomm
Electronics Forum | Tue Aug 14 23:58:19 EDT 2001 | Glen Brian
We are using the new auto-dipping machine for LED solder dipping and dragging. The flux is water-soluble flux and the solder is 63/37 at 250 deg. C. Two weeks ago we exchanged the pot with new 63/37 solder. About a week, we found that the high level
Electronics Forum | Mon Mar 11 11:11:38 EST 2002 | slthomas
Tahnk you for posting the charts. > > They look > very useful, but I have a silly question: In > reflow problems _ What is "leaching" ? Dissolution of the component metallisation into the liquid solder. _ > What is "Halo effect" ? "...a
Electronics Forum | Wed Jun 29 17:58:12 EDT 2005 | GS
Hello, in Europe (SN100C sold by Balver Zinn) several solder pots have been filled by this alloy. On the paper I heard talking very well in terms of performance and good price, but not data are available ( as I know) about performance and if r
Electronics Forum | Thu Apr 06 04:38:21 EDT 2006 | dougs
Hi, We have just purchased a new rework station, i'm looking for tips to get the best quality rework possible. Currently when we are replacing a SMT component we take off the old one clean the pads with solder braid then IPA, re-tin the pads the
Electronics Forum | Fri May 12 13:56:37 EDT 2006 | timnop
Steve, Thank you very much for your reply. What I really need to know now is how you discovered these issues. Did you run this product in your wave solder machine, and for how long? Are you now using SN100c instead? Please mention the other issues if
Electronics Forum | Wed Dec 20 15:40:36 EST 2006 | slthomas
I'm no metallurgist but I don't think you're going to burn up lead with a soldering iron. That said, I would surmise that you could pull a lot of the metallization from the component terminations (very likely lead free) and the pads on the board (i
winsouce.jpg)
