Patent ID: 9251952
Filing Date: 2016-02-02
CPC Classification: H01F,Y10T

Claim Text:
1. A method of manufacturing a laminated coil device comprising the steps of: (A) manufacturing ceramic insulating thin sheets; (B) forming parts of the ceramic insulating thin sheets to have conductive through-holes; (C) manufacturing coil thin sheets having coil conductors so as to stack the coil conductors with said ceramic insulating thin sheets; (D) orderly stacking and cutting said ceramic insulating thin sheets so that said coil thin sheets having coil conductors are cut into unit sizes in order to obtain laminated bodies; (E) heating the laminated bodies at the temperature of 400 degrees centigrade for 2 hours so as to remove a binder, and the sintering the laminated bodies at the temperature of 850˜910 degrees centigrade for 2˜6 hours; and (F) coating the conductive pastes primarily consisting of silver on two ends of the laminated bodies by the impregnation method, and then sintering the laminated bodies with silver coated at the temperature of 600 degrees centigrade for 1 hour so as to form external electrodes.