Evelyn, I don't think Shipley publishes a recommended hard bake time (at least I didn't see one when I just glanced at their datasheet). I use 20 min at 120 C. That works for my application, but there's a lot of variation in the published numbers out there. - Kevin -----Original Message----- From: mems-talk-bounces@memsnet.org on behalf of Evelyn B Sent: Sat 2/7/2009 4:47 PM To: General MEMS discussion; Evelyn Benabe Subject: [mems-talk] Resist 1813 post development bake I have heard that for improved etch resistance 1813 resist should be post-develop baked. Does any one know the recommended post development bake temperature and duration for 1813 resist? I understand that both the temperature and duration should be larger than that of the soft-bake.