Chenhan
You might want to consider an electroplated copper film and then cap
it off with a flash of gold (~ 1 micron) for corrosion resistance.
There might be issues when you consider plating thick films of gold -
especially given an elevated bath temperature and issues such as
resist logetivity, adhesion, cost of plating etc. Copper is both cheap
and and room temperature and is also a well studied material for
electroplating
hope it helps
Amrit.



On Fri, 19 Nov 2004 14:48:18 -0000, Chen-Han Lee  wrote:
>
> Hi mems members,
>
> Could anyone help me please
> between copper and gold thin films,
> which one is more suitable to act as conductive layer,
> for electroplate Nickel and Nickel alloys?
> I know gold has a lower conductivity than copper but
> it is also more resistant to corrosion.
>
> so which one should I use?
>
> thanks
>
> chenhan
>
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> Chen-Han Lee
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> School of Manufacturing and Mechanical Engineering,
> University of Birmingham,
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