Materials that are allowed at Sentech Chamber 1 (metal chamber) for now:
ZrOx, HfOx, AlOx, ITO, TiN, C class metals and ScAlN Forbidden Materials: Noble metals (Au, Ag, Pt, Cu, Pd), Heavy metals (Cd, Pb, Zn), silicones, Li, Y, Fe, Co, Ni, Cr
(Note that Class D wafers with Cu, Au, and Pt are allowed but etching those layers with plasma is forbidden: use IBE instead.)
Monitoring of tool stability is underway and may eventually be used to admit more materials.