Metal working – Method of mechanical manufacture – Electrical device making
Patent
1997-07-03
1999-08-10
Hall, Carl E.
Metal working
Method of mechanical manufacture
Electrical device making
2960324, 2960325, G11B 542
Patent
active
059339403
ABSTRACT:
A matrix type magnetic recording/reading head made in integrated fashion, including an electrically non-conductive ceramic substrate having a first main face and a second main face, each provided with connection areas. The two areas of the two faces are interconnected in sets of two by internal connection elements. A layer with high magnetic permeability is deposited on the first face of the substrate. The substrate bears a first series of row conductors and a second series of column conductors intersecting the row conductors, each conductor being connected to a connection area of the first face. Pairs of magnetic poles are located substantially at the intersection of the row conductor and column conductors, the poles of each pair separated by a gap space and being magnetically coupled to the layer with high magnetic permeability in two opposite zones defined by the intersection of a row conductor and a column conductor.
REFERENCES:
patent: 3839784 (1974-10-01), Pierce
patent: 5392181 (1995-02-01), Lhureau et al.
J.P. Lazzari, et al., "A New Thin Film Head Generation IC Head", Proceedings Of The International Magnetics Conference (INTERMAG), Washington, DC, Mar. 28-31, 1989, pp. AA-1.
Patent Abstracts of Japan, vol. 18, No. 539, (P-1812), Oct. 13, 1994 & JP6187612, Jul. 8, 1994.
Dorel Marc
Maillot Christian
"Thomson-CSF"
Hall Carl E.
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