[mems-talk] RE: Hydrophilic or hydrophobic surfaces

[Boris Kobrin]

Message: 8
Date: Mon, 31 Jul 2006 18:36:31 -0700 (PDT)
From: amron gary <mam_gary at yahoo.com>
Subject: Re: [mems-talk] Hydrophilic or hydrophobic surfaces
To: General MEMS discussion <mems-talk at memsnet.org>
Message-ID: <20060801013631.66991.qmail at web57112.mail.re3.yahoo.com>
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Well, I am interested in creating hydrophobic thin
film coatings. After doing some literature search I
found that Fluorination using plasma of C2F2 gas can
create hydrophobic surfaces which will repel water
molecules. I am not familiar with this technolog so I
am not really sure how to proceed.
Once I deposit coating of let's say ZrN, then is there
a way I can make it hydrophobic. usually angle of
contact and surface free energy is used as a
characgerization tool for hydrophobic or hydrophilic
surfaces. Thanks

Gary


Hi Gary,

You can modify surface hydrophobicity using vapor deposited self-assembled
monolayers. Perfluorinated silanes, for example, are regularly used in MVD
systems as hydrophobic layers. We have never deposited on ZrN, but ready to
try (you may contact me directly for further instructions).

Regards,

Boris Kobrin, Ph.D.
Director of Technology
Applied Microstructures, Inc.
1020 Rincon Circle, San Jose, CA 95131
(408) 907-2885 x2805 office
(408) 594-0654 mobile
boris_kobrin at appliedmst.com