You might want to talk to Transene - US based company

> From: [email protected]
> To: [email protected]
> Date: Mon, 14 Sep 2015 07:33:45 +0200
> Subject: [mems-talk] Searching for a gold etchant
>
> Dear all,
>
>
>
> for structuring gold layers I’m using Au etch 200 from NB technologies as a
> standard process which has a very good performance. But now there is a
> demand for a good selectivity to copper. It seems that there is no gold
> etchant available with a selectivity to copper. Does somebody have any
> suggestions?
>
>
>
> Regards,
>
> Mit freundlichem Gruß
>
>
>
> André Bödecker
>
>
>
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