| 摘要 |
<p>PURPOSE:To obtain a storage device, which has high mechanical strength against bending or twist in spite of a thin type and in which the mounting surface of a circuit board is utilized effectively, in the card-shaped noncontact type portable storage device exchanging signals with an external device by electromagnetic waves. CONSTITUTION:A conductive reinforcing frame 14 having high rigidity is installed along the outer circumferential section of a circuit board 11, and mechanical strength against the bending and twist of a device is increased while the reinforcing frame 14 is connected electrically to the conductor pattern of a spiral coil 61 on the circuit board 11 constituting the inductance of an antenna circuit 6 and a part of the spiral coil is organized.</p> |
