Magnetic head slider having a protective coating thereon

Details Magnetic head slider having a protective coating thereon Magnetic head slider having a protective coating thereon

1990-12-27

1992-10-27

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

29603, G11B 5255

Patent

active

051595087

ABSTRACT:
A magnetic head slider having a protective coating on the rails thereof, the protective coating comprising a thin adhesion layer and a thin layer of amorphous hydrogenated carbon. The protective coating is deposited on the air bearing surface of the slider after the thin film magnetic heads are lapped to a chosen dimension, but before the pattern of rails is produced on the air bearing surface. The protective coating protects the magnetic head during the rail fabrication process and in usage in a magnetic recording system protects the magnetic head from wear and corrosion damage.

REFERENCES:
patent: Re32464 (1987-07-01), Aine
patent: 4130847 (1978-12-01), Head et al.
G. Kaus, J. Kempf, and G. Schmid, "Sliders for Magnetic Heads of Surface-Hardened Silicon with Integrated Electronic Components", IBM TDB, Dec. 1982, p. 3173.
F. D'Heurle and J. Riseman, "Silicon Nitride Protection for Magnetic Heads", IBM TDB, Jun. 1976, p. 351.

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