Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1986-09-08
1989-01-03
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
360122, G11B 560, G11B 5187
Patent
active
047961260
ABSTRACT:
A thin film magnetic head comprises a flying slider and a thin film transducer. The flying slider is formed as a polygonal body having a first face constituting a flying face and a second face normal to the first face, on which second face the thin film magnetic transducer is formed. The flying slider is made of a material containing Al.sub.2 O.sub.3 -TiC as the main constituent thereof and on the flying face of the slider is formed Al.sub.2 O.sub.3 -TiO.sub.2. The flying face exhibits an improved sliding property, while enabling use of the excellent features of Al.sub.2 O.sub.3 -TiC in forming the thin film element as well as in machining the flying slider. The slider can be produced by subjecting the flying face of the slider made of a material containing Al.sub.2 O.sub.3 -TiC to a gas phase reaction with an oxygen containing gas. Alternatively, a portion of the flying face can be removed and a layer of Al.sub.2 O.sub.3 -TiO.sub.2 deposited upon the surface of the flying face.
REFERENCES:
patent: 3735052 (1973-05-01), Hoogendoorn et al.
patent: 4130847 (1978-12-01), Head et al.
patent: 4251841 (1981-02-01), Jacobs
patent: 4430440 (1984-02-01), Wada et al.
Bayer et al, Method of Microroughening the Al.sub.2 O.sub.3 /Tic Substrate of Magnetic Sliders, IBM Technical Disclosure Bulletin, vol. 26, No. 7A, Dec. 1983.
W. D. Kehr and R. W. Polleys, Wear-Resistant Coating, Aug. 1976, IBM Technical Disclosure Bulletin, vol. 19, No. 3.
Electronic Design, IBM's Thin Film Heads Squeeze Disk Capacity to Record Levels, Mar. 1, 1980, pp. 60-63.
Chida Kousaku
Karakama Yoshiakira
Nagaike Sadanori
Nakajima Hiroyasu
Tsuchiya Hiroshi
Computer Basic Research Association
Sniezek Andrew L.
Tupper Robert S.
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