Method of manufacturing a chip inductor

摘要

A winding core is formed by extruding a kneaded material to be obtained by kneading a powdered magnetic material and a binder. A plurality of bundled conducting wires are wound around the winding core into a coiled shape. An external cover element is formed by extruding the kneaded material to enclose the plurality of conducting wires. The winding core and the external cover element are sintered such that the plurality of bundled conducting wires wound around the core into a coiled shape are deformed into a zigzag manner by the stress due to shrinkage of the external cover element at the time of sintering thereof. The partially manufactured product, obtained by the preceding steps, is cut into a predetermined length to thereby obtain a plurality of chip inductor main bodies. An external electrode is formed on each of end surfaces of the respective chip inductor main bodies. The external electrode is connected to each end portion of the conducting wires. Each end portion of the conducting wires is exposed to each of the end surfaces of the respective chip inductor main bodies.