A much better masking material Enthone OMI "stop-off Number 1". This material is
a green paint on polymeric compound which dries quickly and is completley
resistant to acids and bases. It is EASILY removed, and simply peels off like a
rubber sheet - no residuals. I have used the Apiezon "Black Wax" material, but
not with the same degree of satisfaction (especially upon removal - it leaves
residuals).

K. Cazzini (Ph.D)
Senior Scientist
Alcon Research Ltd.
>
> From: "ABHIJAT GOYAL" 
> Date: 2002/02/25 Mon PM 10:12:59 EST
> To: [email protected]
> Subject: [mems-talk] black wax
>
> Hi,
>
>  can you please suggest me some vendors for Black Wax as a mask for KOH etch.
> Can you please tell me the vendors that are based in US only, since it will be
> difficult for me to procure my order if they are outside the US.
>
>   Also can you please suggest me something by which I can remove black wax
after I have etched.
>
> Thanks in advance,
>
> Abhijat Goyal
>
>
> Abhijat Goyal
> EE MEMS group,
> MS candidate,
> Dept. Of Electrical Engineering,
> State College, PA
>
> Ph: (R)814-2350917
>     (O)814-8653664
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