Magnetic sensor

Details Magnetic sensor Magnetic sensor

2009-10-29

2011-12-27

Castro, Angel A. (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

Reexamination Certificate

active

08085513

ABSTRACT:
An object is to provide a magnetic sensor permitting an increase in potential output. The magnetic sensor has a channel layer, a magnetization free layer provided on a first portion of the channel layer and configured to detect an external magnetic field, and a magnetization fixed layer provided on a second portion different from the first portion of the channel layer, and a cross-sectional area of the magnetization fixed layer in a surface opposed to the channel layer is larger than a cross-sectional area of the magnetization free layer in a surface opposed to the channel layer.

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