Sang-Wook,

There are many photochemical etching companies, some in your
area, that etch stainless steel sheets for a living. I had one
etch 25 micron sheet for me before by providing them with a data
file in dxf format. They must have solved your problem long time
ago. The only problem is whether they want to share the info with
you. You might possibly give them the business and have them etch
for you.

You can find some in
http://www.jobshop.com/index.html

Patrick Cheung, research scientist   Xerox PARC, MS 35-1674
(O) 650-812-4338 (FAX) 650-812-4334   3333 Coyote Hill Road
[email protected]                  Palo Alto, CA 94304
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On Mon, 12 Oct 1998, Sangwook Lee wrote:

Hi!
I am wondering if someone has some information about stainless steel
etchants, or vendors. We are going to etch 200 um thick stainless steel.
The stainless steel has some of Cr and Ni. We tried some etchants
followed by a Metal Handbook. But the etch rate is not fast enough.
I heard ferric chloride can etch the stainless steel. But I don't have
the information about the concentration. If you give us some information,
We will really appreciate that.

Sang-Wook