Brinks Hofer Gilson & Lione
Method of producing exchange coupling film and method of producing magnetoresistive sensor by using the exchange coupling film
An exchange coupling film includes a first antiferromagnetic layer formed on a pinned magnetic layer, and a second antiferromagnetic layer formed thereon. A composition ratio of an element X in the first antiferromagnetic layer is larger than that of the second antiferromagnetic layer. Preferably, a non-aligned state is created at an interface between the first antiferromagnetic layer and the pinned magnetic layer, whereby a large exchange coupling magnetic field is obtained upon heat-treatment.
Alps Electric Co., Ltd.
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Yosuke Kenichi Naoya Masamichi
Ide Tanaka Hasegawa Saito