Magnetic sensor and magnetic sensor module

Details Magnetic sensor and magnetic sensor module Magnetic sensor and magnetic sensor module

2010-06-22

2010-12-28

Aurora, Reena (Department: 2858)

Electricity: measuring and testing

Magnetic

Magnetometers

C324S207210

Reexamination Certificate

active

07859258

ABSTRACT:
Magnetoresistive effect elements are provided with an element unit having an elongated shape in which an element length L1is formed to be longer than an element width W1. The element unit has a fixed magnetic layer and a free magnetic layer laminated via a non-magnetic layer on the fixed magnetic layer. A magnetism direction of the fixed magnetic layer faces an element width direction (Y direction) of a sensitivity axis direction. First soft magnetic bodies formed to have a width size W2and a length size L2are arranged in a non-contact manner on both lateral sides of the magnetoresistive effect element. The length size L2is longer than the element length L1, and the first soft magnetic body has an extension part extending in an element length direction from both sides in the element length direction of the element unit.

REFERENCES:
patent: 56-034131 (1981-04-01), None
patent: 58-197892 (1983-11-01), None
patent: 59-195889 (1984-11-01), None
patent: 2005-183614 (2005-07-01), None
International Search Report issued in corresponding PCT Application No. PCT/JP2008/072920; mailed Mar. 17, 2009.

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