MULTI-LAYER ANTENNA, COMMUNICATION IC UNIT USING THE SAME AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To realize a communication IC unit of an antenna mount type. SOLUTION: The multi-layer antenna A is formed by combining a base 11, a 1st coil 21 formed to the base 11, and a 2nd coil 22 laminated on the 1st coil 21 via an insulation film 12. A required high inductance can easily be realized by decreasing the pattern size of the multi-layer antenna A. Integrally joining the multi-layer antenna A with a communication IC module B forms a communication IC unit C.