Textured disc substrate and method

Details Textured disc substrate and method Textured disc substrate and method

1993-07-30

1996-04-16

Ryan, Patrick J.

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428329, 428331, 428900, 428913, 369272, B32B 302

Patent

active

055080774

ABSTRACT:
A disc substrate having a selected roughness gradient from an inner-diameter region to an outer-diameter region, and a method of producing the texturing on the substrate are disclosed. The method includes simulating the movement of texturing particles produced by rotating a texturing pad against a rotating disc substrate, at selected substrate and pad rotational speeds and directions, and for a selected run time. Simulation conditions which produce an averaged cross-hatch angle of intersecting texture lines that is at least about 2 times greater at the inner-diameter region of the substrate than at the outer-diameter region are selected.

REFERENCES:
patent: 4330910 (1982-05-01), Schachl et al.
patent: 4430782 (1984-02-01), Bornhorst et al.
patent: 4535567 (1985-08-01), Seaborn
patent: 4656790 (1987-04-01), Mukai et al.
patent: 4941293 (1990-07-01), Ekhoff
patent: 5070425 (1991-12-01), Inumochi
patent: 5123933 (1992-06-01), Ito et al.
patent: 5155372 (1992-10-01), Bowen et al.
Tsai, H.-S., et al., "Tribological phenomena at the head-disk interface of thin-film rigid disks," J. Vac. Sci. Technol. A 7(3):2491-2495 (1989).

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