Patent ID: 7310871

Claim:
A method of producing a surface-mounting coil component, comprising: preparing a drum-type ferrite core in which an upper flange and a lower flange are formed as one body, wherein the lower flange is disposed on the other end of the upper flange facing toward the upper flange; providing external electrodes that are direct-mounted to the core on the bottom surface of the lower flange; wrapping a winding around the winding core of the drum-type ferrite core and conductively connecting both ends of the winding to the external electrodes; filling a paint of a resin coating material with magnetic powder in a space range defined between the upper flange and the lower flange in opposition to this upper flange; and hardening the paint of the resin coating material with magnetic powder, wherein the filling of the paint of the resin coating material with magnetic powder uses a paint of the resin coating material with magnetic powder having the glass transition temperature of about −20° C. or lower in the course of transferring from the glass state to the rubber state during changing of shear modulus with respect to temperature as the physical property when hardening.