Manufacture of magnetic transducing heads

Details Manufacture of magnetic transducing heads Manufacture of magnetic transducing heads

1978-03-06

1980-02-12

Goolkasian, John T.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

29603, 51310, 51312, 65 36, 65 43, 65 61, 156247, 156344, 360120, 360121, 360126, 428900, B32B 3100, B24B 100, G11B 542

Patent

active

041882474

ABSTRACT:
A process for the manufacture of pole structures for magnetic transducing heads is described in which the configuration of the non-magnetic gaps is formed by abrading the ferrite pole structure through a mask to erode recesses in the gap area which have inclined walls. The final dimension of the gap defining face of one or the magnetic elements is determined by removing material from the masked face of the structure until the dimension between the recesses has the desired value.

REFERENCES:
patent: 3458926 (1969-08-01), Maissel et al.
patent: 3494026 (1970-02-01), Sugaya
patent: 3514851 (1970-06-01), Parkins et al.
patent: 3577634 (1971-05-01), Secrist
patent: 3579926 (1971-05-01), Gaspari
patent: 3605258 (1971-09-01), Fisher et al.
patent: 3807043 (1974-04-01), Hikino et al.

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