Had to rearrange a little, the ad-mini-strator reacted on something...
posh machine, that robotic..

____________________________________________________________________________

You were right, Brian.

Matte Ni served well. When you say 'massive' below, I think of elep-hants.
Can you expand your saying to something more like shi-t per volume or a
similar scientific expression?

Ingemar


-----Original Message-----
From: Brian Ellis [mailto:[log in to unmask]]
Sent: den 1 september 2004 14:32
To: TechNet E-Mail Forum; Ingemar Hernefjord (KC/EMW)
Subject: Re: [TN] Tarnish Immersion Silver


Ingemar

I'm no expert here but, if the substrate permits the Ni to adhere
perfectly, then I see no problem. OTOH, you will require plenty of Cl-
ions to solder that darn nickel. It's probably a good thing that the Ni
is matte, because it shows there is not a massive co-deposit of organic
brighteners, which can cause dewetting. :-)

Brian

Ingemar Hernefjord (KC/EMW) wrote:

> Brian in topform,
>  maybe one can slip in another finish question in parallel? Imagine packages made of Al/Si 58/42. They are ISO-1458 electrolytic sulphamate nickel plated (at least what we ask for). There is no P but lots of Cl, and the appearance of the finish is greyish and extremly matte, much like old cadmium plate. And extremly sensitive to fingerprints. The nickel plate ought to be solderable (filter feedtrues, SMA etc). Question: does the high silicon content have any impact on the final nickel plating?
>
> Ingemar Hernefjord
> Ericsson Microwave Systems
>

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