Hi Joyce - are we talking black pad or black oxide (sometimes described as
black tar)? I was describing the black tar discussions we have had in the
IPC committees. Black pad is well understood and published.

Dave

On Fri, Dec 16, 2016 at 7:43 AM, <[log in to unmask]> wrote:

> http://ieeexplore.ieee.org/document/1645469/
>
> > 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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