Process for fabricating soft magnetic thin films

摘要

An Fe-Zr-N base thin film composed of a metal nitride is formed by reactive sputtering. At the reactive sputtering step, the stress of the thin film is controlled by causing relative movement of the substrate with respect to a target in such a manner that the substrate can be periodically opposite to the target, or applying a negative bias voltage to the substrate, or performing said relative movement of the substrate with the application of the negative bias voltage to the substrate.