Sang-Wook,

I've used ferric chloride to etch stainless of that thickness. It's still
slow, but heat and agitation (or spray) will speed it up. I don't remember
the concentration, but I'll check when I get back to my New Jersey office
next Tuesday.

Reid Zeigler
Merck Research Labs.

> ----------
> From:         Sangwook Lee[SMTP:[email protected]]
> Sent:         Monday, October 12, 1998 1:06 PM
> To:   [email protected]
> Subject:      Stainless etchant
>
> 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
>
>