Procédé de réalisation d'une tête magnétique verticale et tête obtenue par ce procédé

Selon l'invention, l'espaceur amagnétique (68) définissant l'entrefer est dans le même matériau que le substrat (50). Application à l'enregistrement magnétique. The method involves using a substrate (2) with one surface covered by a deposited magnetic layer (2'). A magnetic...

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Bibliographic Details
Main Authors DESLOGES BRIGITTE, GAUD PIERRE, SIBUET HENRI
Format Patent
LanguageFrench
Published 08.09.1995
Edition6
Subjects
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Summary:Selon l'invention, l'espaceur amagnétique (68) définissant l'entrefer est dans le même matériau que le substrat (50). Application à l'enregistrement magnétique. The method involves using a substrate (2) with one surface covered by a deposited magnetic layer (2'). A magnetic circuit (4) is formed with a conductor winding (9) which surrounds one of the magnetic head poles. The magnetic circuit includes two pole-pieces (5,7) separated by a non-magnetic spacer (6). The spacer spreads into the substrate layer. The structure is formed by successive etching of the substrate through a series of masks and deposition of thin films. The final assembly, including substrate, superstrate and active magnetic layer, is finally machined to define the vertical head surface.
Bibliography:Application Number: FR19940002330