Electronics Forum | Fri Oct 14 16:51:46 EDT 2005 | GS
It stands for Elettroless Nikel Immersion Gold, a kind of PCB finishing Entek (there are several kinds) is a brand name of an OSP (Organic Solderability Preservative)kind of PCB finishing. Regards............GS
Electronics Forum | Mon Jan 03 12:26:16 EST 2005 | barryg
We are looking at potentially doing a pcb that is enig finished as called out on its fab. drawing. We plan on a standard 63/37 water soluble paste. Is there any pro's and cons to this process with a pcb plated as such. What is the main advantage that
Electronics Forum | Tue Jan 04 12:37:41 EST 2005 | Cmiller
We have been using this finish almost exclusively for fine pitch boards for about 5 years. Make SURE you use a board house that does the gold plating in-house. There are some potential issues as DaveF stated. The only problem we have encountered is w
Electronics Forum | Mon Nov 03 11:20:08 EST 2008 | boardhouse
Vlad, That was a bad statement to make... Enig should never be thicker than 5 micro inches max. or it will cause embrittlement. This process does self limit but it can put on as much as 10-14 Micro inches which would be a major cause of concern.
Electronics Forum | Mon Feb 05 07:02:11 EST 2007 | CL
ASIR, Findings for us so far: OSP- has worked well for us for single sided boards only. We have seen problems with using it on double sided reflow applications. Also, some customers have specified OSP, but are intolerant of exposed copper. Limited
Electronics Forum | Thu Oct 07 15:50:57 EDT 2010 | boardhouse
Craig & Rem - I would also recomend switching to ENig - OSP would be my sencond choise ENig will give you the flatness your looking for plus the best shelf life. Enig is about 5% more than Hot Air. Enig also does not cause as much stress on the c
Electronics Forum | Thu Oct 07 08:13:52 EDT 2010 | remullis
I just swapped from the HASL to Immersion Silver mainly because the board house we use could not maintain consistency in keeping the pads level. I was constantly battling bumps and bad finishes on the pads. They are able to give me a consistent board
Electronics Forum | Thu Sep 30 16:16:14 EDT 2010 | vetteboy86
Were doing double sided, and I'm told our PCB finish is tin silver. From a quick search I'm finding that for double sided assemblies we would be better off using ENIG.
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 | Wed Jan 19 19:14:12 EST 2022 | charliedci
Looking for opinions on pic attached of ENIG finish. appears to be over-etched gold, but I am not trained up on PCB fabrication.
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