Methods for reducing surface roughness of magnetic media for storage drives

摘要

Methods for reducing the surface roughness of magnetic media to be used in storage drives are described. One such method includes forming a recording media on a substrate, the recording media including at least one recording layer configured to store information magnetically, depositing a first layer of carbon on the recording media, the first carbon layer having a first average preselected thickness, etching the first carbon layer to have a second average preselected thickness less than the first average preselected thickness, depositing a second layer of carbon on the etched first carbon layer, the second carbon layer having a third average preselected thickness that is less than the first average preselected thickness, and implanting nitrogen in the second carbon layer.

主权项

1. A method for reducing surface roughness of magnetic media, the method comprising:
forming a recording media on a substrate, the recording media comprising at least one recording layer configured to store information magnetically, wherein the recording media comprises a plurality of peaks separated by a plurality of valleys and a first surface roughness; depositing a first carbon layer directly on the recording media in a single deposition, the first carbon layer having a first average preselected thickness, a second surface roughness, wherein the second surface roughness is less than the first surface roughness; etching the first carbon layer to have a second average preselected thickness less than the first average preselected thickness, wherein the second average preselected thickness is greater than a height of any of the plurality of peaks in the recording media; depositing a second carbon layer on the etched first carbon layer, the second carbon layer having a third average preselected thickness that is less than the first average preselected thickness; and implanting nitrogen in the second carbon layer.