Method of making a high density multitrack magnetic head

Details Method of making a high density multitrack magnetic head Method of making a high density multitrack magnetic head

1977-09-26

1978-09-19

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

29418, G11B 542

Patent

active

041142594

ABSTRACT:
The front face of a multitrack magnetic head has a stack of track defining pole pairs and spacers between the pole pairs of adjacent tracks. The spacers are slotted, and shields reside in the slots. A chamfer runs longitudinally of the stack. Embracing opposite sides of the stack and parallel to the chamfer, are non-magnetic wing parts, such parts being part of a surround used in the manufacture of the front face. Bonding glass, in the form of a unitary "lattice" fills the chamfer, and the spacings between the ceramic and shields, and the wing parts and stack.
The method for forming the head employs a surround having a depth greater than the depth of the stack, thereby forming a basin for accepting the bonding glass.

REFERENCES:
patent: 3400386 (1968-09-01), Sinnott
patent: 3761641 (1973-09-01), Mlinaric
patent: 3909932 (1975-10-01), Kroon
patent: 3983622 (1976-10-01), Schneider et al.

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