Dear all, I had a 20nmCr/ 200nmAu film sputtert on silicon. This setup has been treated at 350°C for an hour. At the final Hf etching step which I used to remove the BOX of an SOI wafer the Au film peeled of. Does anybody have an explanation? Do I need a diffusion barrier between the Cr and the Au? Or has anyone a suggestion for another adhesion layer? Kind regrads, Heiko Micromotive GmbH Carl-Zeiss-Str. 18-20 55129 Mainz, Germany Tel.: +49 6131 62780-10 Fax.: + 49 6131 62780-15