Method of making a magnetoresistive sensor

Details Method of making a magnetoresistive sensor Method of making a magnetoresistive sensor

1995-11-28

1997-09-23

Vo, Peter

Metal working

Method of mechanical manufacture

Electrical device making

2960315, 2960318, 360113, G11B 5127, G11B 539

Patent

active

056691335

ABSTRACT:
A magnetoresistive sensor having an improved read sensitivity function which remains relatively stable in response to variations in lapping. The magnetoresistive sensor includes a magnetoresistive element, a first electrical contact and a second electrical contact. During lapping, the boundaries between the electrical contacts and the magnetoresistive element, and therefore the active region of the magnetoresistive element, remain relatively constant in a lateral direction across the magnetoresistive sensor. This provides a relatively insensitive read sensitivity function within a predetermined lapping tolerance range.

REFERENCES:
patent: 4503394 (1985-03-01), Kawakami et al.
patent: 4843505 (1989-06-01), Mowry
patent: 4967298 (1990-10-01), Mowry
patent: 5018037 (1991-05-01), Krounbi et al.
patent: 5079035 (1992-01-01), Krounbi et al.
patent: 5285339 (1994-02-01), Chen et al.

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