Hi Ghong Wei,

  Most microfabrication labs/facilities will not allow to etch stainless
steel in thier equipment or benches because of contaminants.  I would
recommend the hands on version of using finer and finer grades of sand paper
to get a good look at the cross section.

Phil Tabada


>From: ":\(\): oxxxxxx|" 
>Reply-To: General MEMS discussion 
>To: mems-talk@memsnet.org
>Subject: [mems-talk] Alumina/ss
>Date: Thu, 22 May 2003 10:49:32 -0500
>
>   hi.
>
>   I depositing a alumina thin film on the surface of Stainless Steel. I
>tried to have a look of the cross section. Anybody can tell me how to etch
>it?
>--
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