GRANULAR MAGNETIC RECORDING MEDIA WITH IMPROVED CORROSION RESISTANCE BY CAP LAYER AND PRE-OVERCOAT ETCHING

摘要

Particulate magnetic recording media are non-magnetic substrate having a surface; The uppermost and the particulate magnetic recording layer, comprising a layer stack on the substrate surface containing the particulate magnetic recording layer having an outer surface that is sputtered etching the cap layer, and a protective overcoat layer on the outer surface of the cap layer that is sputter etching on.