Magnetic field sensor and a method of manufacturing the same with the giant magneto-resistance effect element and manufacturing equipment

摘要

The present invention is characterized in that a first giant magnetoresistive effect element and a second giant magnetoresistive effect element are provided along a first straight line with the magnetization of the pinned magnetic layer c oriented in a fixed direction, and that a third giant magnetoresistive effect element and a fourth giant magnetoresistive effect element are provided along a second straight line, which is parallel to the first straight line, with the magnetization of the pinned magnetic layer oriented 180° opposite to the directions of magnetization of the pinned magnetic layers in the first and second giant magnetoresistive effect elements.