COIL DEVICE AND METHOD OF MANUFACTURING THE SAME

Abstract: a coil device includes a core and a wire. the core contains a magnetic material and includes a mounting surface and a side surface extending in a direction perpendicular to the mounting surface. the wire includes a winding portion disposed inside the core and a leading portion led out from the winding portion. the leading portion includes a base end portion extending from the winding portion toward the side surface and a flat terminal portion continuing to the base end portion and extending along at least the side surface. the plating layer is formed on the terminal portion. a recess recessed toward the opposite side to the mounting surface is formed in the vicinity of a boundary portion between the base end portion and the terminal portion.

Inventor(s): Kosuke ENDO, Shohei ABE, Satoshi SUGIMOTO

CPC Classification: H01F27/2828 (MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES (ceramics based on ferrites ; alloys {; construction of loading coils }; loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers ; thermomagnetic devices ))

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