Hello.
KOH should work and it is less dangerous in handling, compared to HF.
Best regards,
Norbert Nodes
EV Group
E-Mail: n.nodes@evgroup.com, www.EVGroup.com
-----Original Message-----
From: mems-talk-bounces@memsnet.org
[mailto:mems-talk-bounces@memsnet.org] On Behalf Of Gary Hillman
Sent: Mittwoch, 10. Oktober 2007 19:02
To: 'jpt sharma'; 'General MEMS discussion'
Subject: RE: [mems-talk] Al2O3
J. Alumina is really pretty chemically resistant. The only thing that
I
think will touch it is HF and then VERY slowly. Gary