U.S. Philips Corporation

Peter Lasinski

Franciscus W Dirne

Arnold Broese Van Groenou

Leo-Franciscus M Van Oorschot

Freddy Roozeboom

Victor Zieren

Hendrik J De Wit

Cornelis H Witmer

Mathijs De Jongh

Johannes A Tolboom

Franciscus W A Dirne

Magnetic head having a head face ( ) and comprising a head structure composed of thin layers and provided with a transducing element (E ), in which different materials occurring in different areas are present in the head face. The head face is provided with a first layer ( ) of a material which is more sensitive to corrosion than other materials in the head face, and the first layer is provided with a second layer ( ) of a wear-resistant material which is more insensitive to corrosion than the material of the first layer. The second layer constitutes a contact face ( ) for cooperation with a magnetic tape ( ).

Magnetic head having a wear-resistant layer, and method of manufacturing such a magnetic head

A magnetic head having a head face (5) and a layer structure with a transducing element (E11) and a transducing gap terminating in the head face. At the area of the transducing gap and at both sides of the transducing gap the head face is coated with a layer (31) substantially comprising Cr.sub.2 O.sub.3 for forming a contact face (33) for cooperation with a record carrier. The layer substantially comprising Cr.sub.2 O.sub.3 having a thickness in the range between 10 and 100 nm is preferably provided by reactive RF sputtering.

Magnetic head having a wear resistant layer substantially comprising

The invention relates to a soft magnetic multilayer film which comprises a number of crystalline main layers and a number of amorphous secondary layers, the main layer substantially exclusively comprising iron as the magnetic constituent, and the secondary layer comprising mainly iron as the magnetic constituent. Such multilayer films exhibit a relatively low magnetostriction constant which is almost not influenced by temperature treatments. Such films are very suitable for use in magnetic heads.

Soft magnetic multilayer film and magnetic head provided with such a

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Eindhoven, Netherlands

Peter Lasinski