Electronics Forum | Tue Aug 09 11:57:11 EDT 2005 | Board House
Hi Ted, I am a Sales Manager for a Circuit board Manufacture in MN. We have seen the Majority of our Customer base switch to Enig do to shelf life issues of silver and Tin. Silver, Tin & OSP all have a shelf life between 6 - 8 Mos. Enig is betwee
Electronics Forum | Fri Feb 11 15:33:52 EST 2000 | Steve Thomas
We're considering an ENIG finish on some of our boards to resolve some coplanarity concerns with 20 mil pitch QFP100s. I welcome any comments on the subject, especially regarding solderability and the variables of ENIG that affect it, but would part
Electronics Forum | Thu Sep 30 16:54:33 EDT 2010 | 18424
Enig have been one of the industries leading finishes with great solderabilty and shelf life, And now Immersion Silver is starting to get popular.
Electronics Forum | Thu Oct 31 11:47:00 EDT 2019 | slthomas
I've never tried OSP so can't speak to it's real world use. I only know what I've read about it (it has a shelf life and allegedly is less physically durable than ENIG) so I don't believe that it's a good fit for us. I understand that it solders
Electronics Forum | Thu Jul 28 09:47:06 EDT 2005 | fctassembly
Hello Carl, The main reason there is little information on lead free soldering to ENIG is because most of the lead free soldering to date has been Japanese consumer products. To keep costs down, the major surface coating used has been OSP copper. It
Electronics Forum | Tue Jul 06 16:59:36 EDT 2004 | davef
I'm sorry for not being clear. The "1 thou" refers to the thickness of copper that rides below your ENIG. If your HIC card is blue that's good. If it's some other color that makes you nervous, then you make of it what you will. They're pretty muc
Electronics Forum | Wed Dec 15 21:29:34 EST 2004 | davef
We�d say that it�s incorrect that ENIG solderability protection cannot be steam aged. It�s true the immersion tin and silver cannot be steam aged. We believe that most of the issues surrounding the poor performance of ENIG after steam aging is attr
Electronics Forum | Tue Feb 25 06:06:11 EST 2020 | hexton
I am currently weighing up my options for resistors that will be fitted to a fully assembled PCB (PTH&SMT). Do I omit the stencil apertures leaving exposed pads (ENIG) so they can be hand soldered with fresh solder. Considering shelf life for soldera
Electronics Forum | Wed Dec 22 01:39:06 EST 2010 | boardhouse
Hi Johan, As a Asian board supplier - I would not recommend using Lead free hasl on any product that has BGA, you would be just looking for issues, flatness being the main. I agree with one of the other replies - Your purchasing dept. should not be
Electronics Forum | Wed May 03 15:56:25 EDT 2006 | Board House
Hi Patrick, Thank you for the info, We like to push ENIG, for us being the ENIG line is in house it is cheaper to use than the carbon, plus shelf life of the Carbon is an issue in Storage. Pre-application. Thanks again, Mike
