Xinyu,
      Any treatment with a suitable silane will make the PDMS more hydrophobic.
If you can get access to a YES vacuum vapor prime you can vacuum dehydrate the
PDMS then vapor treat with HMDS and achieve hdrophobicity.  Let me know if I can
help running some demo's here.  Bill Moffat

-----Original Message-----
From: Xinyu Li [mailto:[email protected]]
Sent: Monday, December 09, 2002 8:38 AM
To: [email protected]
Subject: [mems-talk] How to make PDMS more hydrophobic?


Dear colleagues,

Do you know how to make PDMS more hydrophobic?

Thanks.

Xinyu Li


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