Magnetic member for electromagnetic driving device and manufacturing method thereof

摘要

A first core is formed by stacking a plurality of magnetic plates of a soft magnetic material, such as iron, in a direction perpendicular to a plane of each magnetic plate. A bonding thin layer made of iron oxide having a thickness of approximately a few nanometers to a few hundred micrometers is formed between adjacent ones of the magnetic plates. The adjacent magnetic plates are bonded to each other by diffusion bonding in such a manner that the bonding thin layer is interposed between the adjacent magnetic plates to electrically insulate between the adjacent magnetic plate.