| 摘要 |
PROBLEM TO BE SOLVED: To provide a non-contact type information medium capable of easily adjusting capacitance of a capacitor configured by facing plate electrodes.SOLUTION: A non-contact type IC card 10 includes: a film base material 11; an antenna coil 13 arranged on a top surface 11a of the film base material 11; an IC chip 12 for performing radio communication processing; first flat electrodes 14a, 14b connected to the antenna coli 13 and arranged on the top surface 11a of the film base material 11; and second flat electrodes 16a, 16b arranged on a rear surface 11b of the film base material 11 so as to face the first flat electrodes 14a, 14b in the thickness direction by sandwiching the film base material 11. The film base material 11 includes: an intermediate base material 11c made of a dielectric substance; a first dielectric substance layer 11d for adjustment made of the dielectric substance and formed on one surface of the intermediate base material 11c; and a second dielectric substance layer 11e for adjustment made of the dielectric substance and formed on the other surface of the intermediate base material 11c.SELECTED DRAWING: Figure 2 |
