Hello, You can use Dry etch BCB (3000-serie. Inhere we use it for W2W bonding. Regards, Peter Kuijpers MiPlaza Technology Laboratories Philips Research Europe High Tech Campus 04 Postbox HTC-4-1 5656 AE Eindhoven The Netherlands Tel.: +31 402743667 +31 612507027 Email: p.e.m.kuijpers@philips.com -----Original Message----- From: mems-talk-bounces@memsnet.org [mailto:mems-talk-bounces@memsnet.org] On Behalf Of Ulli Hansen Sent: Tuesday 11 August 2009 17:09 To: mems-talk@memsnet.org Subject: [mems-talk] thermally curable glue Hi everyone, I am looking for glues that can be spun on as thin coatings (few micrometers) and can be cured entirely thermal. Any kind of UV initiation is not possible, as both bond partners are not transparent. Any hints? thanks Ulli