... reflection film evaporation materials with refractory crucible and boat.High metal reflection film, ultra wide band ... optical filmMetal electrode film1. The substrate material and the target lattice matching degree2, substrate surface ... , high pure platinum Pt, high purity germanium, high purity Ni Ni and high pure golden Au ... Au Ge alloy Auge, alloy of gold and nickel and auni, NiCr Ni Cr alloy, titanium ...