Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1992-06-12
1994-10-25
Gluck, Richard E.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
G11B 560
Patent
active
053594797
ABSTRACT:
A composite magnetic head slider is shown. The magnetic head slider includes a slider body having a leading edge, a trailing edge and a side surface extending therebetween. The slider body includes an hydrodynamic surface which co-acts with an air cushion on a moving magnetic media and the hydrodynamic surface includes an air bearing surface which extends between the leading edge and trailing edge of the slider body. The air bearing surface is substantially perpendicular to the side surface. A magnetic transducing element formed of a polycrystaline ferrite material and having a transducing gap located adjacent the trailing edge and air bearing surface is rigidly joined to the side surface of the slider with a bonding layer comprising a material by weight approximately 80% gold and approximately 20% tin.
The magnetic head slider can be fabricated to have outer dimensions for 100%, 70%, 50%, 25% or 10% or any other selected percentage form factor magnetic head slider having operating characteristics similar to those of more expensive deposited thin film magnetic transducers.
A method for fabricating a composite magnetic head slider is shown.
REFERENCES:
patent: 4823216 (1989-04-01), Atesmen et al.
patent: 4854659 (1989-08-01), Hamerslag et al.
patent: 4928195 (1990-09-01), Ezaki et al.
patent: 5105529 (1992-04-01), Yasan et al.
The How and Why of Slider Downsizing by Dr. Paul W. Smith, Magnetic Headlines, Special Comdex Edition, Oct. 1991, pp. 1 & 4 [Submission is an 3-81/2.times.11 pages].
Stress Analysis of Glass Bonded Ferrite Recording Heads by T. Tang; IBM J. Res. Develop., May 1974, pp. 274-278.
Auger Spectroscopy Analysis of Metal/Ferrite Interface Layer in Metal-In-Gap Magnetic Head by K. Kajiwara et al; IEEE Transactions on Magnetics, vol. 24, No. 6, Nov. 1989 pp. 2620-2622.
1991 Head/Media Technology Review, Conference Summer, Oct. 20, 1991, p. 142.
Applied Magnetics Corporation
Gluck Richard E.
Meaney, Jr. Daniel J.
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