Patent ID: 7924228
Filing Date: 2011-04-12
Classification: G06K,H01Q,H05K

Abstract:
1. A storage medium with built-in antenna, comprising: a semiconductor element including a communication function for sending and receiving a signal to and from external equipment via an antenna coil; a circuit board on which the semiconductor element is placed; a first magnetic layer and a second magnetic layer disposed sandwiching the semiconductor element and the circuit board; the first magnetic layer and the second magnetic layer being larger than the semiconductor element; a first antenna coil disposed on the first magnetic layer; and a second antenna coil disposed on the second magnetic layer; wherein the first antenna coil and the second antenna coil are connected in parallel on a single flexible sheet, the first antenna coil and the second antenna coil being folded at a side of the first magnetic layer and at a side of the second magnetic layer, respectively, and being electrically connected to the semiconductor element.