Magnetic recording medium and method for production thereof
AssigneeHitachi Global Storage Technologies Netherlands B.V.
InventorsYoshinori Honda, Ikuko Takekuma, Ichiro Tamai
Life of this patent
Estimating the term…
Abstract
A reactive sputtering method is provided for producing a magnetic layer in a stable manner with good reproducibility. One aspect of the invention is to form a magnetic layer for a magnetic recording medium without adversely affecting magnetic properties. Carbon oxide gas is added at the time of reactive sputtering. In one embodiment, a method for producing a magnetic recording medium includes forming at least a soft magnetic layer and a magnetic layer above a substrate, wherein forming said magnetic layer includes sputtering with argon gas and carbon oxide gas.
Claims17
A method for producing a magnetic recording medium, comprising:
- forming at least a soft magnetic layer and a magnetic layer above a substrate;
- wherein forming said magnetic layer includes sputtering with argon gas and carbon oxide gas.
A method for producing a magnetic recording medium, comprising:
- forming an adhesion layer above a substrate;
- forming a soft magnetic layer after forming said adhesion layer;
- forming a magnetic layer by sputtering after forming said soft magnetic layer;
- forming a protective layer after forming said magnetic layer;
- and
- forming a lubricating layer after forming said protective layer;
- wherein forming said magnetic layer involves incorporating carbon oxide gas.
Dependencies are inferred from the claim text.