U.S. Philips Corporation

Helmut J Gassen

Gerardus H Somers

Victor Zieren

Rudolf A Van Doorn

Franciscus A Pronk

James Richard Peterson

Wilhelmus J Smits

Johannes H Franssen

Eugene L Raemaekers

Johannes F De Proost

Method of manufacturing a magnetic head having a tape contact face (5) with transducing gaps, which method starts from a substrate (1) on which a magnetic head structure is formed layer by layer. A magnetic head structure comprises magnetoresistive elements (E1-E11) connected each to first connection faces (13a, 13b) by means of at least two first connection tracks (11a, 11b), and flux guides (19a, 19b) for cooperating with the magnetoresistive elements. An electrically conducting uninterrupted layer (27) extending parallel to the tape contact face to be formed is provided during formation of the magnetic head structure, which layer is interrupted locally when the tape contact face is being formed so as to define spatially separated electric conductors for biasing at least one magnetoresistive element. Each electric conductor is connected to second connection faces (17a, 17b) by means of at least two second connection tracks (15a, 15b).

Method of manufacturing a magnetic head

For a tape contact face to be formed in a thin-film magnetic head having at least one transducing element, by removing material, a reference plane (29) corresponding to the tape contact face is detected by means of a plurality of markers (27A-27J) juxtaposed in a layer and extending transversely to the tape contact face, which markers have first end portions (27A1-27J1) pointing in one direction and second, spatially separated end portions (27A2-27J2) pointing in an opposite direction, with the second end portions located at different distances from the reference plane, inclined with respect to the reference plane, and adjoining each other steplessly.

Method of manufacturing a thin-film magnetic head and magnetic head

Growing community of inventors

Eindhoven, Netherlands

Helmut J Gassen