Sorry guys, I should clarify this. My situation is that I can only use wet etching. We do not have DRIE equipment. Our O2 plasma may not be powerful enough for dry etching. It is only used for cleaning wafers. Cheers >________________________________ >From: Shane GUO>To: "mems-talk@memsnet.org" >Sent: Tuesday, July 12, 2011 11:57:08 AM >Subject: Regarding 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 >