Magnetoresistive sensing element with a projection for enhanced

Details Magnetoresistive sensing element with a projection for enhanced Magnetoresistive sensing element with a projection for enhanced

1988-04-25

1989-06-27

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Hall effect

G11B 539

Patent

active

048435058

ABSTRACT:
A thin film magnetic data transducer has for reading data a magnetoresistive sensing element with a projection not more than about 1.5 .mu.m. long under at least one of the poles. The projection's tip is approximately flush with the end of the pole, and because of its proximity to the medium, allows greater sensitivity in reading magnetic patterns in the recording medium. As long as the length of the projection is less than about the stated dimension (length measured normal to the medium surface) the sensing element does not break up into domains.

REFERENCES:
patent: 3731007 (1973-05-01), Masuda et al.
patent: 4613918 (1986-09-01), Kanai et al.
patent: 4713708 (1987-12-01), Krounbi et al.
patent: 4785366 (1988-11-01), Krounbi et al.

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