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

1996-11-18

1998-09-01

Breneman, R. Bruce

Metal working

Method of mechanical manufacture

Electrical device making

2960312, 216 22, G11B 5127

Patent

active

057993882

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: 3706926 (1972-12-01), Barrager et al.
patent: 5159508 (1992-10-01), Grill et al.
patent: 5402074 (1995-03-01), Keel et al.
patent: 5632669 (1997-05-01), Azarian et al.

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