Patent ID: 6680112
Filing Date: 2004-01-20
Classification: G11B,Y10T

Abstract:
A magnetic recording medium produced using a process for producing a magnetic recording medium which comprises the steps of (i) forming a non-magnetic undercoat film and a magnetic film on a non-magnetic substrate to produce a disk, (ii) forming a carbonaceous protective film thereon through plasma chemical vapor deposition, (iii) etching a surface of the carbonaceous protective film by use of plasma generated from an etching gas, during the etching of the surface of the carbonaceous protective film, applying a high-frequency electric power onto a disk, and (iv) forming a lubricating film, wherein,oxygen is present in the surface of the carbonaceous protective film in an amount of about 2.9 to 12% as measured using X-ray photoelectron spectrometry, a B/A value of the carbonaceous protective film is about 1.22 to 1.65 as measured using Raman spectrometric analysis, a water contact angle of the carbonaceous protective film is about 70Â° or less, and a thickness of the carbonaceous protective film is 30-100 Ã¥.