Thin film magnetic head and method of fabrication

Details Thin film magnetic head and method of fabrication Thin film magnetic head and method of fabrication

1996-07-25

1998-03-17

Bray, W. Donald

Metal working

Method of mechanical manufacture

Electrical device making

2960315, 2960312, 216 22, 360113, 360104, 360125, G11B 5127, G11B 539

Patent

active

057273081

ABSTRACT:
A magnetic head is formed by depositing a pad pattern on a substrate with a flat upper surface. The pad pattern includes two spaced inner slopes that face each other. An air bearing surface plane is defined between the inner slopes where the air bearing surface of the magnetic head is to be formed. An undercoat layer is deposited on the pad pattern, such that the undercoat layer follows the contour of the inner slopes to form a recessed region between the inner slopes. A magnetic layer is deposited on the undercoat layer to form a first pole P1 that follows the contours of the inner slopes. A gap layer is then formed on top of the first pole P1 and follows its contour. Conductive coils are formed within the recessed region. A second magnetic layer is deposited over the coils and gap layer to form a second pole P2. The magnetic head is lapped at the air bearing surface plane to form the final air bearing surface.

REFERENCES:
patent: 4652954 (1987-03-01), Church
patent: 5557492 (1996-09-01), Gill et al.
patent: 5560097 (1996-10-01), Bajhorek et al.
patent: 5655286 (1997-08-01), Jones, Jr.

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