Method of manufacturing a thin film magnetic head with identific

Details Method of manufacturing a thin film magnetic head with identific Method of manufacturing a thin film magnetic head with identific

1997-05-23

1998-11-17

Evans, Geoffrey S.

Electric heating

Metal heating

By arc

B23K 2600, G11B 560

Patent

active

058379630

ABSTRACT:
A method of manufacturing thin film magnetic heads, including the steps of forming, on one surface of a substrate, a plurality of electromagnetic transducer elements and a plurality of input and output terminals electrically connected to the transducer elements, forming a protection layer on the surface of the substrate to cover at least the transducer elements, forming terminal cover layers and a seed layer thereof on the surface in order to cover the input and output terminals, respectively, and forming identification marks for identifying the magnetic head on the protection layer by laser beam machining. The identification mark forming step is performed during the terminal cover layer forming step.

REFERENCES:
patent: 4301353 (1981-11-01), Suenaga et al.
patent: 5329090 (1994-07-01), Woelki et al.
patent: 5523125 (1996-06-01), Kennedy et al.
patent: 5718036 (1998-02-01), Oji et al.

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