Patent Number: 6,165,582

Title: Magnetic recording medium

Abstract: A magnetic recording medium having a diamond-like carbon (DLC) film added therein a Group IV element of the periodic table such as silicon, particularly in the vicinity of the boundary between the magnetic material and the formed DLC film. Since a DLC having low friction coefficient can be formed, the centerline average roughness can be reduced to 30 nm or even less. Accordingly, a magnetic recording medium improved in magnetic properties and in lubricity can be obtained.

Inventors: Hayashi; Shigenori (Kanagawa, JP)

Assignee: Semiconductor Energy Laboratory Co., Ltd.

International Classification: G11B 5/72 (20060101); G11B 5/84 (20060101); G11B 005/66 ()

Expiration Date: 12/26/2013