COMPOSITE MAGNETIC SHEET AND PROCESS FOR PRODUCING THE SAME

摘要

This invention provides a composite magnetic sheet, which has excellent magnetic properties while realizing high strength and thickness reduction, and a process for producing the same. The composite magnetic sheet (1) comprises at least a resin (20) and a metallic magnetic powder (10). The metallic magnetic powder (10) comprises flat-shaped powder particles having a major axis and a minor axis. In the flat-shaped powder particles, the major axis is in the range of not less than 5 µm and not more than 80 µm, and the aspect ratio defined by the dimension ratio between the major axis and the minor axis is not less than 5 and not more than 20. In the composite magnetic sheet (1), the metallic magnetic powder (10) is dispersed so that the major axis is aligned parallel along the surface of the composite magnetic sheet (1).