Rajib,

  What size are your parts?  What type of a bond are you looking for?  What kind
of alignment accuracy are you looking for?  Planarity?  My initial thought would
be to do a glass frit bond.  We could run some samples at Suss if you would be
interested.

Regards,

Brian Douglas
Suss Microtec Inc.
Applications Engineer - Bonders
Phone: (802) 244 - 5181 x202
Fax:  (802) 560 - 0001