Abstract: A switching power supply module includes a power inductor which includes a magnetic core and L-shaped metal end electrodes and a switching power supply chip which includes a packaging body, a bare chip and a bottom bonding pad of the bare chip; the L-shaped metal end electrode includes a first electrode part which is welded at 90° to the magnetic core and a second electrode part which extends in parallel from the first electrode part to the middle of the magnetic core and is perpendicular to the first electrode part; the bare chip and the packaging body are embedded between the first, the second electrode part and the magnetic core; the bottom bonding pad abuts between the two second electrode parts and is insulated from the second electrode part, and the weld face of the bottom bonding pad is flush with that of the second electrode part.

Abstract: A laminated electronic device includes a laminate wherein the laminate includes a plurality of laminated insulator layers, the laminate has a multi-layer coil pattern provided between the plurality of insulator layers in a laminated manner, adjacent layers of the coil pattern are electrically connected through conductive via holes to form an internal coil, a first external electrode and a second external electrode are disposed on a bottom surface of the laminate which is parallel to a direction of lamination. In surface-mounting of the laminated electronic device, it only needs to connect the external electrodes on the bottom surface of the laminate to a soldering board, and needs not to preserve a space for solder wicking in the surrounding, thereby significantly saving the occupied space of surface mount components to achieve high-density mounting; in addition, the Q value of the product is improved.

Abstract: A switching power supply module includes a power inductor which includes a magnetic core and L-shaped metal end electrodes and a switching power supply chip which includes a packaging body, a bare chip and a bottom bonding pad of the bare chip; the L-shaped metal end electrode includes a first electrode part which is welded at 90° to the magnetic core and a second electrode part which extends in parallel from the first electrode part to the middle of the magnetic core and is perpendicular to the first electrode part; the bare chip and the packaging body are embedded between the first, the second electrode part and the magnetic core; the bottom bonding pad abuts between the two second electrode parts and is insulated from the second electrode part, and the weld face of the bottom bonding pad is flush with that of the second electrode part.

Abstract: An inductor and a method for manufacturing the same are disclosed. The inductor includes a magnetic body and a conductor coil, where the conductor coil is inside the magnetic body; and further includes an inorganic insulation layer, where the inorganic insulation layer is wrapped on a surface of the conductor coil, and the inorganic insulation layer is inside the magnetic body. According to the present application, an inductor having a higher inductance or an inductor having a lower direct current resistance may be manufactured.

Abstract: A method of manufacturing a laminated coil device includes conductors for forming coils and insulation stacking for forming laminated bodies, and further includes the steps of: (A) manufacturing ceramic insulating thin sheets; (B) forming ceramic insulating thin sheets with conductive through-holes; (C) manufacturing coil thin sheets with coil conductors so as to embed the coil conductors inside the ceramic insulating thin sheets; (D) orderly stacking and cutting ceramic insulating thin sheets and coil thin sheets with coil conductors into unit sizes in order to obtain laminated bodies; (E) heating the laminated bodies in order to remove the binder, and then sintering the laminated bodies; (F) coating the conductive paste on the two ends of the laminated bodies so as to form external electrodes. Thus, the present invention is to provide a manufacturing method of producing a laminated coil power device with low direct current resistance, no delamination, no air space, and no lamination cracking.

Abstract: A method of manufacturing a laminated coil device includes conductors for forming coils and insulation stacking for forming laminated bodies, and further includes the steps of: (A) manufacturing ceramic insulating thin sheets; (B) forming ceramic insulating thin sheets with conductive through-holes; (C) manufacturing coil thin sheets with coil conductors so as to embed the coil conductors inside the ceramic insulating thin sheets; (D) orderly stacking and cutting ceramic insulating thin sheets and coil thin sheets with coil conductors into unit sizes in order to obtain laminated bodies; (E) heating the laminated bodies in order to remove the binder, and then sintering the laminated bodies; (F) coating the conductive paste on the two ends of the laminated bodies so as to fen external electrodes. Thus, the present invention is to provide a manufacturing method of producing a laminated coil power device with low direct current resistance, no delamination, no air space, and no lamination cracking.