PURPOSE: To suppress generation of a hole of a painted part of conductive paste and to improve productivity by preventing the generation of the hole due to air engulfing in the paste coating an end of a chiplike electronic component in a short time.

CONSTITUTION: In order to coat an end of a chiplike electronic component 8 with conductive paste 13, the component 8 is dipped in the paste 13 in a helium chamber 14 partitioned from an exterior to be a helium gas atmosphere. Then, the component 8 is removed from the chamber 14 at each jig 1, an end of the component 8 of a side coated with the paste 13 is directed toward an upside, and helium engulfed in the coated paste 13 is externally discharged.