Full Site - : gold and discoloration (Page 23 of 28)

Difference Gold Plating electrolytic and ENIG with on BGA

Electronics Forum | Wed Apr 06 13:43:14 EDT 2011 | mosborne1

ENIG is the way you need to go. With ENIG you deposit a lot less gold. Too much gold will cause soler problems. Matt www.americancircuits.com

Gold Fingers Discoloration

Electronics Forum | Mon Jul 03 23:11:04 EDT 2000 | Patrick Ng

hi, We are receiving PCBs with gold fingers "discolored". The "discolored" gold fingers can be removed if rub with soft eraser! We are working with suppliers to determine the root cause and eliminate this issue. Pls assist if you have encountered si

what is the different between ENIG and Immersion Au

Electronics Forum | Thu Jan 12 02:08:47 EST 2006 | adeline_ko

Hi, What is the different between Electroless Nickel / Immersion Gold (ENIG) and Immersion Au. Are they refer to the same finishing? We has been using the Gold thickness (0.00005 - 0.00013mm) , nicket (0.0025mm) for all Gold finishing brd (Immersio

PB and PB Free on same screen printer

Electronics Forum | Thu Oct 04 16:12:52 EDT 2007 | mike007

Use dedicated stencils & gold or green squeegee holders

Tinned leads and where the component body is defined

Electronics Forum | Wed Sep 02 15:02:36 EDT 2020 | SMTA-64387501

We have recently received some pre-tinned "flat lead packages" and the question I have relates to the definition of solder touching the component body of the part. Typically when I have gold lead parts tinned there is a gold gap between the tinned po

Lead Free PCB Plating and Leaded Solder Process

Electronics Forum | Tue Feb 16 21:29:18 EST 2010 | actioncontrols

I predict you will have no problems with your soldering. Remember that all plating is only a few microns thick and quickly washed away by the molten solder. We have used white tin, immersion gold, OSG, etc. for quite a while with leaded solder and


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