Hi all, I'd like to use polyimide as sacrificial layer for the fabrication of an air-bridge. I'll have to spin it on a SiO2 surface; on part of the top I'll have to deposit gold and SiO2 again. I was thinking to use HD-8820 polyimide and I wonder whether this is a good solution. Has anybody already used something similar ? Suggestions ??? Thanks in advance ! Giuliano