Ion milling with argon will work for only 0.1 um of Ti. --Kirt Williams -----Original Message----- From: mems-talk-bounces+kirt_williams=sbcglobal.net@memsnet.org [mailto:mems-talk-bounces+kirt_williams=sbcglobal.net@memsnet.org] On Behalf Of Shane GUO Sent: Tuesday, July 12, 2011 8:57 AM To: mems-talk@memsnet.org Subject: [mems-talk] Ti etching and S1813 resist Hi all, I would like to use S1813 resist as an etching mask for Ti. I am wondering if there is anything that does not contain HF can work for me? I am thinking about oxalic acid or H2O2. Do they attack S1813 resist? Can they work for a 100nm Ti layer? Any suggestion is welcome. Best regards