| 摘要 |
PROBLEM TO BE SOLVED: To provide a chip-like winding-type coil component which is superior in a Q characteristic, has high connection reliability, and is suitable for miniaturization. SOLUTION: In the winding-type coil component 10, ends of windings 6 are bonded to electrodes 5 arranged on sides S at lower sides of corner brims 2a and 2b of a drum-type ferrite core 3 having the square corner brims 2a and 2b on both ends of a winding core 1. An outer periphery of the winding 6 wound to the winding core 1 is coated with magnetic powder content coating resin 8. Recessed grooves 4 are made on the sides S at the lower sides of the corner brims 2a and 2b from a winding core 1-side to an end face F in a thickness direction of the brims. First electrodes 5 are formed in the widthwise direction including the recessed groove 4 on the sides S on the lower sides where the recessed grooves 4 of the corner brims 2a and 2b are arranged. The ends of winding 6 are thermocompression-bonded at the side toward the end face F in the groove 4, and a part near the winding core 1 in the recessed groove 4 at the end of winding 6 is coated with coating resin 8. A surface of coating resin 8 in the recessed groove 4, an outer surface of a thermocompression bonding part C, and a surface of the first electrode 5, are coated by a second electrode 9 of conductive resin. COPYRIGHT: (C)2006,JPO&NCIPI
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