Magnetic head gimbal suspension with double dimple

Details Magnetic head gimbal suspension with double dimple Magnetic head gimbal suspension with double dimple

1996-07-12

1997-07-29

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 560, G11B 2121

Patent

active

056526849

ABSTRACT:
A head-gimbal assembly for suspending a magnetic head over a spinning disk in a magnetic disk drive having head suspension positioning apparatus includes a base plate fastenable to the positioning apparatus in the magnetic disk drive, a load beam coupled at one end thereof to the base plate and a first dimple in the load beam at another end thereof, a flexible gimbal coupled to the load beam near the other end thereof and a second dimple in the gimbal having a concave surface facing a convex surface of the first dimple and a convex surface to which the magnetic head is attachable. Preferably, the convex surface of the first dimple has a radius smaller than a radius of the concave surface of the second dimple. The head is attached to the gimbal by an adhesive material attached to the convex surface of the second dimple and a top surface of the magnetic head. The adhesive material is hardened while a bottom surface of the head and the base plate are held in a predetermined attitude relative to one another (e.g., parallel to one another). Preferably, a predetermined force is applied to the head-gimbal interface while the adhesive material hardens corresponding to (e.g., equal to) an operational force exerted on the head-gimbal interface during operation of the magnetic disk drive.

REFERENCES:
patent: 4470088 (1984-09-01), Fick
patent: 4797763 (1989-01-01), Levy et al.
patent: 5019931 (1991-05-01), Ohwe et al.
patent: 5079660 (1992-01-01), Yumura et al.
patent: 5299080 (1994-03-01), Mizuno et al.

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