From phimmer at snf.stanford.edu Wed Mar 17 11:59:32 2004 From: phimmer at snf.stanford.edu (phillip himmer) Date: Wed, 17 Mar 2004 11:59:32 -0800 Subject: ti etch Message-ID: <9BC4A0E2-784D-11D8-ADBF-000A95AC943C@snf.stanford.edu> Hello I want to etch a titanium layer overlying an aluminum layer. Does anyone know if the Ti etch, using ammonium hydroxide recipe that SNF uses, will etch aluminum or roughen the aluminum surface? Any thoughts are appreciated. thanks phil