Thin film disk media using optimum surface orientation to writte

Details Thin film disk media using optimum surface orientation to writte Thin film disk media using optimum surface orientation to writte

1998-06-29

2000-06-27

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record medium

Disk

G11B 582

Patent

active

06081411&

ABSTRACT:
The hard disk drive manufacturing method of the present invention includes an initial determination of the orientation of the individual hard disks during the various processing steps and disk drive assembly steps. Specifically, the orientation of the hard disks in the assembled disk drive is ascertained, such that the direction of arcuate writing paths on the disk surface is known. Additionally, the orientation of non-random arcuate micro-scratches that appear on the disk surface during disk processing is ascertained. Where the arcuate path of the micro-scratches corresponds to the arcuate writing paths on a disk surface, the disk process is altered to effectively reorient the disk in its mounting in the hard disk drive. The result of the process alteration is that there is no longer a correspondence between the arcuate path of the micro-scratches and the arcuate written data paths, and a significant reduction in the number of defects on the surface of the hard disk is obtained.

REFERENCES:
patent: 4588611 (1986-05-01), Shadzi
patent: 5099615 (1992-03-01), Ruble et al.
patent: 5351156 (1994-09-01), Gregory et al.
patent: 5364655 (1994-11-01), Nakamura
patent: 5389794 (1995-02-01), Allen et al.
patent: 5442638 (1995-08-01), Awad et al.
patent: 5443901 (1995-08-01), Mino et al.
patent: 5576918 (1996-11-01), Bar-Gadda et al.
patent: 5599590 (1997-02-01), Hayashi
patent: 5612830 (1997-03-01), Gregory et al.
patent: 5623386 (1997-04-01), Sullivan
patent: 5645471 (1997-07-01), Strecker
patent: 5661559 (1997-08-01), Brezoczky et al.
patent: 5853847 (1998-12-01), Takahashi

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