Hi Mike - the general consensus is that there is an issue with the nickel
plating layer. Not a ton of data in the published literature but a topic
that has been discussed a length in the IPC-JSTD-002/003 committees at
times.

Dave Hillman
Rockwell Collins

On Thu, Dec 15, 2016 at 7:53 PM, Lehmicke, Michael <
[log in to unmask]> wrote:

> What is the root cause of Black Oxide issues in ENIG plating?
>
> Mike Lehmicke
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