Manufacturing method of thin film magnetic heads
AssigneeTDK Corporation
InventorsNoboru Yamanaka, Shunichi Katase
Life of this patent
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Abstract
A method for manufacturing a thin film magnetic head includes a step of preparing a wafer with a thickness greater than a desired slider length for the magnetic head, a step of forming a plurality of thin film magnetic head elements on one surface of the wafer, a step of slicing the wafer to obtain a plurality of bars so that each of the bars includes a plurality of the thin film magnetic head elements, and a step of longitudinally cutting each of the bars in parallel with a first side face of the bar, on which the thin film magnetic head elements are formed, to remove a portion of the bar at the side of a second side face which is opposed to the first side face so that a length of the bar becomes equal to the desired slider length for the magnetic head.
Claims4
A method for manufacturing a thin film magnetic head, comprising the steps of:
- preparing a wafer having first and second opposed side faces defining a thickness therebetween greater than a desired slider length of a magnetic head to be manufactured;
- forming a plurality of thin film magnetic head elements on said first side surface of said wafer;
- slicing said wafer in the direction perpendicular to said side faces, thereby obtaining a plurality of bars, each of said bars including a plurality of the thin film magnetic head elements;
- longitudinally cutting each of said bars in parallel with said first side face, on which said thin film magnetic head elements are formed, thereby removing a portion of said bar at the side of said second side face, thereby producing a plurality of bars each having a length equal to the desired slider length of the magnetic head to be manufactured;
- and
- cutting the bars having the desired length in a direction perpendicular to the slicing direction, thereby producing the thin film magnetic heads.
Dependencies are inferred from the claim text.