Magnetic disk

Details Magnetic disk Magnetic disk

1990-12-05

1992-06-02

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record medium

Disk

G11B 582

Patent

active

051192594

ABSTRACT:
A magnetic disk of the stretched surface type, in which a substrate is formed at least two bases having opposing warp characteristics so as to avoid adverse deformation effects. Non-metallic materials, which are less expensive than metallic materials such as aluminum, preferably are used for the substrate, with the thermal expansion coefficient of the substrate being approximately that of the arm on which a magnetic head is mounted. The bases may be adhered by a hot-melt adhesive or a radiation-curable adhesive.

REFERENCES:
patent: 4812939 (1989-03-01), Dishi
patent: 4835647 (1989-05-01), Chernega et al.
patent: 4887178 (1989-12-01), McCracken et al.

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