Magnetic head with wear resistant layer having alignment mark, and magnetic head unit incorporating same
AssigneeU.S. Philips Corporation
InventorsVictor Zieren, Jacobus J. M. Ruigrok, Mathijs De Jongh, Arnold Broese Van Groenou
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Abstract
Magnetic head unit comprising a magnetic head secured in a housing and having a magnetic head structure provided with a head face and at least one transducing gap terminating in the head face. A wear- resistant layer (31 ) having at least one alignment mark (35, 36, 37) occupying a defined position with respect to the transducing gap is provided on the head face.
Claims20
A magnetic head unit comprising a magnetic head secured to a support and having a magnetic head structure provided with a head face and at least one transducing gap terminating in the head face, which head face is provided with at least one head face area having a first distinguishing structure in the form of a cavity and occupying a defined position with respect to the transducing gap, a wear-resistant layer forming a contact face being provided on said head face, a contact face area of the contact face having a second distinguishing structure which matches the first distinguishing structure, and which differs from the surrounding structure of the wear-resistant layer and forms an alignment mark occupying a defined position with respect to the transducing gap.
Dependencies are inferred from the claim text.