| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetoresistance effect element capable of preventing electrostatic discharge damage or overcurrent damage. SOLUTION: The magnetoresistance effect element 1 has a magnetoresistance effect layer 2, a pair of electrically conductive layers 4, 4 which give an electric current to the magnetoresistance effect layer 2 and current bypass layers 5, 6 laminated on the magnetoresistance effect layer 2. The layers 5, 6 lower their electric resistance and change from an insulator to a conductor when heated to a prescribed temperature. When an overcurrent flows in the magnetoresistance effect layer, the current bypass layers 5, 6 are heated and change from an insulator to a conductor. The overcurrent flowing in the magnetoresistance effect layer 2 is bypassed, the generation of heat in the magnetoresistance effect layer is prevented and electrostatic discharge damage or overcurrent damage is prevented.
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