Industry News | 2011-08-19 05:08:40.0
Nickel gold is one of the most popular surface finishes used in the PCB assembly industry with many advantages but also process and reliability issues.
Industry News | 2019-05-16 01:27:23.0
There are several surface treatment for PCB board: bare board (no treatment on the surface), rosin board, OSP (Organic Solderability Preservatives), HASL (lead tin, lead-free tin), plating gold, immersion gold, etc., these are relatively conscious treatment. Many people can't tell the difference between plating gold and immersion gold, thinking that it is the same thing, it is a big mistake. The following is a brief introduction to the difference between plating gold and immersion gold.
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Suitable for welding of THT, SMD device, streamline design, beautiful, convenient maintenance and maintenance. preheating zone and filtration system adopts direct pull type module design, convenient maintenance and maintenance. preheating zone,
Industry News | 2010-04-09 21:17:21.0
Five of Indium Corporation's technology experts will present their technical findings at APEX in Las Vegas, Nevada, April 6-9, 2010.
Electronics Forum | Tue Aug 02 15:02:50 EDT 2016 | davef
ASPIS (Advanced Surface Protection for Improved Reliability PCB Systems) The three year Aspis ‘Research for SMEs’ project has been conducted to address problems found with the nickel gold (ENIG) solderable finishes that are used by the electronics in
Electronics Forum | Mon Oct 20 14:17:35 EDT 2008 | robinj
The discoloration/shadow appearance is a clear sign of black pad which is from nickel corrosion in the gold bath.
Electronics Forum | Thu Aug 23 09:52:38 EDT 2007 | d0min0
Hi, in past we had an issue with ENIG surface, black was Ni that get pass the Au - but it was discovered after reflow (SnPb) and the IC was losing contact with Cu tracks...at customers application :| Reason was as I remember too thin Au sufrace... w
Electronics Forum | Mon Oct 20 15:41:19 EDT 2008 | patrickbruneel
Josh, You can not check the bare boards for black pad unless you remove the gold plating. Like Robin said black pad is nickel oxidation/corrosion and a result from bad electroless nickel plating bath control. The only preventative action you take is
Electronics Forum | Thu Mar 02 07:40:46 EST 2000 | Roni Haviv
Allmost forgot: The "black pad" is simply the oxidized Nickel.
