Hi All, I'm trying to bulk etch some die we got from MOSIS and had planned to use the TMAH+ solution (i.e. TMAH+Ammonium Peroxysulfate+silicic acid) but we came across the following info from NIST: http://www.mosis.org/Technical/Designsupport/nist-mems-1.html which says you can use EDP for the post processing. Has anyone used EDP on MOSIS chips? Is the Al alloy used in MOSIS just more resistant to it? Any help would be appreciated -Mike Martin