Method and apparatus for texturing zones of a magnetic disk

Details Method and apparatus for texturing zones of a magnetic disk Method and apparatus for texturing zones of a magnetic disk

1994-12-19

1996-01-09

Lavinder, Jack W.

Abrading

Abrading process

Combined abrading

451 37, 451 58, B24B 100

Patent

active

054824974

ABSTRACT:
A magnetic data storage disk includes a surface with a coarsely textured head landing zone and a finely textured data storage area. The coarse texture is applied over the fine texture in the landing zone without forming a step in elevation at the boundary. A method for texturing the magnetic disk includes first applying a fine texture to both the data storage area and the landing zone, and then applying a coarse texture to the landing zone only. Texturing apparatus includes peripheral disk clamps permitting axial compliant movement when the opposed disk surfaces are engaged by balanced, pneumatically biased abrading tools. A free abrasive slurry is introduced to pads carried by the tools.

REFERENCES:
patent: 3659386 (1972-05-01), Goetz et al.
patent: 4835909 (1989-06-01), Richter
patent: 4939614 (1990-07-01), Shirakura
patent: 5167096 (1992-12-01), Eltoukhy

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