| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic component module capable of sufficiently preventing the erroneous operation of a circuit. SOLUTION: An electronic component module comprises a base 2 having wiring and a thin film magnetic device 3 provided on one surface 2a side of the base 2. The thin film magnetic device 3 comprises a magnetic film 6 arranged in opposition to the base 2, a magnetic film 8 arranged in an opposed manner on a side opposed to the base 2 relative to the first magnetic film 6, and a thin film coil 4 which is wound on the magnetic film 8 a plurality of times. The thin film coil 4 comprises a plurality of conductive pattern portions 4A provided between the magnetic films 6 and 8, a plurality of conductive pattern portions 4B provided on a side opposed to the magnetic film 6 relative to the magnetic film 8, and a plurality of connection conductive portions 4C connecting the conductive pattern portion 4A and the conductive pattern portion 4B in series. The relative magnetic permeability of the magnetic film 8 is larger than the relative magnetic permeability of the magnetic film 6. COPYRIGHT: (C)2008,JPO&INPIT |
