Electronics Forum | Mon Nov 05 15:38:29 EST 2007 | ck_the_flip
As unlikely that this may be, if the RF circuit is sensitive enough, and the minor change in alloy is the only thing that changed, this MAY be the cause. The circuit was probably tuned to Sn63/Pb37. The reason I'm not surprised? I once had a custo
Electronics Forum | Wed Apr 04 08:55:45 EDT 2012 | tombstonesmt
Dave, *The machine looks to keep a steady 290c (I can confirm) *This problem is machine/product specific. We have three other Pillarhouses that run the same alloy/flux but only run this one product at this station. *The solder does have a "tail" whil
Electronics Forum | Mon Dec 03 16:05:55 EST 2012 | emeto
Hi all, We are going to evaluate new LEAD-FREE solder paste. We stopped our attention on 3 manufacturers but the variety of products is so big. What would you recommend for a daily basis use? Is SAC305 the most commonly used alloy? We are a subcontr
Electronics Forum | Fri Mar 01 03:16:01 EST 2013 | grahamcooper22
Solder paste flux formulation can make a difference when soldering to nickel silver...due to the alloy containing metals that oxidise easily like zinc and nickel then the flux has to be able to cope with the surface oxidation when the parts are in th
Electronics Forum | Wed Nov 01 07:32:33 EST 2006 | davef
What you have run up against is the unfortunate consequence of the transition period from Sn-Pb to Pb-free. In the past 2-3 years there have been several studies highlighting the differences in reliability between mixed metal systems, Sn/Pb, and SAC
Electronics Forum | Mon Oct 03 22:16:58 EDT 2005 | Ken
If that's the case, let your customer go. I have run into this situation recently. Q. Why do you not run a dedicated line for lead free? A. You (the customer) give less than 12 weeks forcast and expect us to have a dedicated line for your product?
Electronics Forum | Fri Dec 30 16:50:48 EST 2005 | fctassembly
250 tons/month) and, as it has been stated here, many customers have switched from SAC305 to SN100C but we are not aware of any customer who has switched from SN100C to SAC305. As the inventor of SN100C states, �once a customer touches the SN100C, he
Electronics Forum | Wed Jul 12 11:26:12 EDT 2006 | flipit
Hi, I believe you have classic gold imbrittlement here. With 80 microinches of gold you are way over the limit. You can try to reflow longer time and at a higher temperature. The gold does not melt into the solder joint. The gold dissolves into
Electronics Forum | Mon Apr 18 12:28:33 EDT 2005 | davef
We've never heard of it either. Stained glass widow people use varous types of copper and brass tape / foil in their work. A widely used suppler of this tape is Venture [ http://www.venturetape.com ]. They may be able to help. We're not sure how
Electronics Forum | Thu Jun 09 05:04:05 EDT 2005 | Joseph
Dear Patrick, Unfortunately we do not know what exactly the failure as our customer refuse to reveal to us. From visual inspection the solder joints are smooth and shiny as per IPC-A-610 requirements. The component supplier (IR) commended that they
