Method for producing magnetic recording medium, and magnetic recording and reproducing device

Abstract

The present invention relates to the production method for the magnetic recording medium having a magnetic recording pattern 2a which is magnetically divided. The production method includes a step in which a magnetic layer 2 is formed on a non-magnetic substrate 1; a step in which a dissolution layer 3 is formed on the magnetic layer 2; a step in which a mask layer 4 is formed on the dissolution layer 3; a step in which the dissolution layer 3 and the mask layer 4 are changed to shapes that correspond with the magnetic recording pattern 2a; a step in which the part of the magnetic layer 2, which is not covered by the mask layer 4 and the dissolution layer 3, is partially modified or eliminated; and a step in which the dissolution layer 3 is wet-dissolved using a chemical solution for removing the dissolution layer 3 and the mask layer 4 on the dissolution layer from the magnetic layer 2, wherein in the step of forming the dissolution layer 3, after a coating which is obtained through dissolving organic silicon compound into organic solvent is coated on the magnetic layer 2, the coating is solidified, thereby forming the dissolution layer 3.

Description

technical field [0001] The present invention relates to a method of manufacturing a magnetic recording medium used in a hard disk drive (HDD) and the like, and to a magnetic recording and reproducing device. Background technique [0002] In recent years, the range of application of magnetic recording devices such as hard disk devices, floppy disk devices, and magnetic tape devices has significantly increased, and while their importance has increased, the recording density of magnetic recording media used in these devices has been increasing. Significantly increased. Especially since the introduction of MR head and PRML technology, the increase in areal recording density has been even more intensified. In recent years, GMR head and TMR head have also been introduced, which is continuing to increase at a rate of about 1.5 times a year. [0003] For these magnetic recording media, it is required to achieve higher recording densities in the future. Therefore, it is required to...

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Problems solved by technology

However, in the case of this method, although the medium is less likely to be contaminated during the manufacturing process, since the concave-convex shape formed on the substrate is inherited by the film formed on it, there is a possibility that the medium may be recorded while floating on the medium. The problem that the floating posture and floating height of the recording and reproducing head become unstable during reproduction

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