Magnetic detection device

Details Magnetic detection device Magnetic detection device

2010-02-10

2010-11-16

Aurora, Reena (Department: 2858)

Electricity: measuring and testing

Magnetic

Magnetometers

C324S207210, C338S03200R

Reexamination Certificate

active

07834619

ABSTRACT:
A magnetic detection device includes a sensor unit including a sensor pattern having a plurality of magnetoresistance effect films whose ends in the length direction thereof are coupled via return portions, and electrode units formed at both ends of the sensor pattern in the longitudinal direction thereof. A non-magnetic conductor is electrically connected across a top surface of one of a pair of magnetoresistance effect films that are coupled via the corresponding one of the return portions and that face each other and a top surface of the other magnetoresistance effect film. Therefore, the resistance value between the electrode units can be adjusted without increasing the dimensions of the sensor unit, and deterioration or variation in magnetic characteristics can be reduced.

REFERENCES:
patent: 4480248 (1984-10-01), Sudo et al.
patent: 6069476 (2000-05-01), Vieux-Rochaz et al.
patent: 6732583 (2004-05-01), Yasuda et al.
patent: 2006/0152218 (2006-07-01), Schmollngruber et al.
patent: 1-24617 (1990-08-01), None
patent: 2004-207540 (2004-07-01), None

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