Corrosion resistant thin film head assembly and method for makin

Details Corrosion resistant thin film head assembly and method for makin Corrosion resistant thin film head assembly and method for makin

1977-03-31

1978-12-19

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Head

Head surface structure

360103, 360113, G11B 560, G11B 512, G11B 522, G11B 2120

Patent

active

041308476

ABSTRACT:
A slider element includes a thin film transducer deposited onto a slider along at least one of the rails forming the flying air bearing surface with a magnetic media. A portion of the end tips of the pole pieces and gap of the thin film inductive transducer and a portion of the slider rail adjacent to the transducer is etched by a sputter etching process. A layer of a passivation material such as chromium is sputter deposited into the etched portion such that the leading portion of the rail protects the passivation material from wear. The passivation material over the pole tips of the transducer prevents the corrosion of the iron-nickel alloy comprising the pole tips.

REFERENCES:
patent: 3573768 (1971-04-01), Harris
patent: 3665436 (1972-05-01), Murray et al.
patent: 3823416 (1974-07-01), Warner
patent: 3855625 (1974-12-01), Garnier et al.
patent: 3887945 (1975-06-01), Nepela et al.
patent: 3921217 (1975-11-01), Thompson
patent: 3956770 (1976-05-01), McWhinnie et al.

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