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Abstract

Provided are a method of manufacturing a magnetoresistive element and a manufacturing system which are capable of manufacturing a magnetoresistive element achieving further downscaling, i.e., further increase in the degree of integration of the magnetoresistive element while having high magnetic properties. The method includes: preparing a stacked film including one of the two magnetic layers, a layer to form the tunnel barrier layer, and the other of the two magnetic layers, on a substrate; forming multiple separated stacked films on the substrate by separating the stacked film into the multiple stacked films by etching; irradiating side portions of the multiple separated stacked films with ion beams in a pressure-reducible process chamber; and after the irradiation with the ion beams, forming oxide layers or nitride layers on surfaces of the multiple stacked films by introducing an oxidizing gas or a nitriding gas into the process chamber.

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First Claim