Method of forming a thin film magnetic head

Details Method of forming a thin film magnetic head Method of forming a thin film magnetic head

1993-07-29

1995-11-14

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

360123, G11B 542

Patent

active

054654750

ABSTRACT:
A thin film magnetic head has a lower magnetic pole formed on a substrate; a coil arranged on the lower magnetic pole through an adhesive layer; an upper magnetic pole arranged on the coil; and a gap layer formed between the upper and lower magnetic poles. A method for forming the thin film magnetic head has a process for forming a lower magnetic pole on a first substrate; a process for forming a coil on a second substrate having a recessed portion; a process for polishing the first and/or second substrate such that a face of the lower magnetic pole on the first substrate and a face of the coil on the second substrate come in close contact with each other; a process for adhering the first and second substrates to each other such that the lower magnetic pole and the coil are adjacent to each other; a process for forming a gap layer on the lower magnetic pole; a process for polishing or etching a portion or all of the second substrate; and a process for forming an upper magnetic pole. In this magnetic head and the forming method, high performance can be obtained and cost of the thin film magnetic head can be reduced.

REFERENCES:
patent: 3839784 (1974-10-01), Pierce

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