Jimmy,

      Need more information.  Are you evaporating or sputtering metal on
top of PDMS.  If so a gentle inert plasma ( Argon or Nitrogen) will
provide molecular level pitting.  More surface area more adhesion.  Let
us know more we may be able to help.  Bill Moffat

-----Original Message-----
From: mems-talk-bounces@memsnet.org
[mailto:mems-talk-bounces@memsnet.org] On Behalf Of Jimmy Wang
Sent: Wednesday, January 06, 2010 4:11 PM
To: mems-talk@memsnet.org
Subject: [mems-talk] Adhesion of Metal embedded in PDMS

Hi,

I am working on a project that involves embedding metals (copper/zinc)
into PDMS. The purpose is to have it be flexible. However, despite being
flexible, due to the weak adhesion between PDMS and the embedded metal,
the PDMS may just peel off. The metal is cleaned very thoroughly yet the
problem still occurs. It appears that metal does not adhere well to
PDMS. Is there anything to enhance the adhesion between PDMS and metal?

Thanks!

JJW