Disk drive disk with landing zone having textured and...

Details Disk drive disk with landing zone having textured and... Disk drive disk with landing zone having textured and...

2005-08-09

2005-08-09

Davis, David (Department: 2652)

Dynamic magnetic information storage or retrieval

Record medium

Disk

Reexamination Certificate

active

06927941

ABSTRACT:
A disk storage medium and a disk drive which reduce friction during landing of the head/slider is described. The minimum fly height area of the head/slider is positioned over a texture free portion of the landing zone on the disk surface landing. In a preferred embodiment, the landing zone of a magnetic disk is a laser texture zone comprising a great number of bumps and is positioned during landing adjacent an area other than the minimum fly height area of the head/slider. The area facing the minimum fly height area of a head/slider has no bumps, i.e. is a bump free zone.

REFERENCES:
patent: 4698251 (1987-10-01), Fukuda et al.
patent: 4996622 (1991-02-01), Takatsuki et al.
patent: 5635269 (1997-06-01), Weir et al.
patent: 56-35 (1979-11-01), None
patent: 63-239618 (1987-03-01), None
patent: 4-38716 (1992-02-01), None
patent: 5-307748 (1993-11-01), None
patent: 6-111294 (1994-04-01), None
patent: 6-290452 (1994-10-01), None
patent: 07-302476 (1995-11-01), None
patent: 08-77554 (1996-03-01), None

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