Hi Sally,

We have switched all of our SMT boards to Silver,
with no bad effects.

Its not even a "cost adder" anymore, and in fact might even be
cheaper than HASL these days (I don't quote anymore)

We don't "stockpile" boards, but if they are wrapped and stored
properly they won't tarnish until you use them.

I hardly ever see ENIG anymore, and only a few people on
TechNet really try to defend it (probably ENIG suppliers, ha)

best wishes,
Jack

On 6/25/07, Sally Price <[log in to unmask]> wrote:
>
>
>
> Hi all,
>
>
>
> A question on the new RoHS gold plating for boards, is anyone flashing
> the gold directly to the copper eliminating the nickel bath? I have read
> that doing this makes the gold more brittle and it has problems with the
> lead-free paste.  Also, is there anything new on the use of sliver
> immersion, I read that the tarnishing of stockpiled boards before
> assembly could be a good thing?
>
>
>
> I know this is vague but the cost of PCB's has risen to 30% since we
> have gone to ENIG boards and this makes it tough trying to be profitable
> long term. ALL suggestions are welcome (come on you lurkers I need you).
>
>
>
> Thanks in advance.
>
>
>
> Sally Price
>
> (A fellow Lurker)
>
>
>
> Sally  Price
> Senior  PCB Designer
> Nvision,Inc.
> 125 Crown Point Ct.
> Grass Valley, CA  95945
> Phone:  (530) 265-1049
> FAX:     (530) 265-1055
> e-mail:  [log in to unmask]
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
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