Method of manufacturing a coil component
A coil component includes a body that is made of a composite material containing a resin material and metal powder, a coil conductor which is provided in the body and an end portion of which is exposed on an end face of the body, and a metal film that is provided on an outer surface of the body and that is electrically connected to the coil conductor on the end face in the outer surface. The outer surface of the body has a contact area that is in contact with the metal film. Multiple particles of the metal powder escape from the resin material and are in contact with each other in the contact area of the body.
1 . A method of manufacturing a coil component, the method comprising:
providing a coil conductor in a body made of a composite material containing a resin material and metal powder so that an end portion of the coil conductor is exposed on an end face of the body;
irradiating at least the end face in an outer surface of the body with laser in such a manner to cause particles of the metal powder to be exposed from the resin material on a laser irradiation face of the body and to cause the particles to be in contact with each other; and
forming a metal film on the laser irradiation face of the body using plating, wherein:
the body has a side face adjacent to the end face,
the laser irradiation face is provided on the end face and the side face during the laser irradiating, and
the metal film is continuously provided on the end face and the side face in the metal film forming.
2 . The method of manufacturing the coil component according to claim 1 , further comprising:
covering a portion of the metal film, which is positioned on the end face, with an insulating film after the metal film forming step.
3 . The method of manufacturing the coil component according to claim 1 , wherein during the laser irradiating, the laser is irradiated to melt the particles so that the particles are bonded to each other.