Greg,

Thermal-conductive pressure sensitive adhesive (PSA) tape would help with
this application better than liquid adhesive or glue due to the following
advantages:
*       Good control of thickness variation
*       Tailored adhesion level to specific bonding substrate
*       Minimum tension (liquid adhesives usually shrink and introduce
tension to substrate)
*       Easy to use. Never messy. Bond instantly; easily conformable.
*       Supplied in roll form, allowing higher manufacture efficiency than
using liquid adhesive.

In this case, you could use a double-face or transfer PSA tape to bond the
wafers. We have thermal-conductive PSA tapes, and also have heat release
technology where the adhesive loses its tack when heated. Contact me if you
need detailed information.

Wilson Xia

Wilson Z. Xia (Ph.D.)
Adhesives Research, Inc.
PA  17327, USA.
Tel: 1-717-227-3487
[email protected]
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Mems Group,

I'm looking for a good thermal conductive glue that will bond two =
silicon wafers together - and be release after a few operation that =
require good thermal conductivity, vacuum compatible, temperature range =
between -20 to 125 C.

Thanks,

Greg Miller
KVH Industries
Email: [email protected]