Julian

CVD boron nitride is inert to HF.  The only chemicals I am aware of that
will etch it are flourine plasmas and sodium hypochlorite solutions.

Roger Shile
Endevco
-----Original Message-----
From: Julian Shapley 
To: [email protected] 
Date: Friday, November 06, 1998 7:51 PM
Subject: HF resist


>Hello Mems Workers
>
>Could anybody give me any leads on a substance that could be used as a
>masking material for HF for a long period of time.
>
>Thanks in advance
>
>Julian Shapley
>University of Cardiff.
>UK
>
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