Patent ID: 8334028
Filing Date: 2012-12-18
Classification: B05D,C23C,G11B

Abstract:
1. A method of forming a protective film for a magnetic recording medium, the method comprising: (1) forming a protective film, on a lamination including a substrate and metallic film layers formed on the substrate, by means of a plasma CVD method using a hydrocarbon gas, wherein a flow rate of the hydrocarbon gas is in a range of 50 sccm to 200 sccm and an emission current is in a range of 0.1 A to 0.3 A: and (2) surface treating the protective film that has been formed in (1), said surface treating including (2a) a plasma treatment in an argon gas, and (2b) a plasma treatment in a gas containing a nitrogen gas wherein 2a precedes 2b.