Method for manufacturing a magnetic head

Details Method for manufacturing a magnetic head Method for manufacturing a magnetic head

1983-11-09

1986-07-22

Goldberg, Howard N.

Metal working

Method of mechanical manufacture

Electrical device making

360119, 360122, 360125, 360126, G11B 5127

Patent

active

046010998

ABSTRACT:
A magnetic head is made by forming a first half core having at least two substantially parallel plane surfaces and one lateral surface, the distance between the two plane surfaces being equal to or greater than a predetermined track width fixing one of the two plane surfaces of the first half core on part of one plane surface of a non-magnetic substrate so that the one lateral surface of the first half core meets with the one plane surface of the substrate, and depositing a magnetic insulator to a substantially uniform thickness on the other of the two plane surfaces and the one lateral surface of the first half core and the remaining part of the one plane surface of the substrate, thereby forming a gap spacer, depositing the same material for the first half core to a substantially uniform thickness on the gap spacer film, thereby forming a second half core having a thickness equal to or greater than the predetermined track width, and removing at least part of the gap spacer film lying on the other plane surface of the first half core and part of the second half core lying on said part of the gap spacer film to be removed from the other plane surface of the first half core, thereby forming a magnetic head.

REFERENCES:
patent: 3751803 (1973-08-01), Fisher et al.

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