Manufacture of magnetic heads having asymmetric air bearing surf

Details Manufacture of magnetic heads having asymmetric air bearing surf Manufacture of magnetic heads having asymmetric air bearing surf

1995-03-23

1999-05-18

Echols, P. W.

Metal working

Method of mechanical manufacture

Electrical device making

2960312, G11B5/127

Patent

active

059039680

ABSTRACT:
Thin film magnetic heads each having non-parallel asymmetric rails are manufactured by, forming a multiplicity of thin film magnetic transducers on a substrate, for a matrix distribution of magnetic heads to be produced from the substrate; testing all the magnetic transducers and discriminating them into good ones and failed ones; assigning a rail pattern to each of the magnetic heads, which pattern utilizes a good magnetic transducer; severing the substrate into respective rows; polishing an air bearing surface on each row; forming a resist layer on the air bearing surface of each row; positioning the rows in an exposing apparatus; exposing the assigned rail pattern on the resist layer in each magnetic head region of each row.

REFERENCES:
patent: 4333229 (1982-06-01), Ellenberger
patent: 4785161 (1988-11-01), Strom
patent: 4835361 (1989-05-01), Strom
patent: 5159508 (1992-10-01), Grill et al.

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