Patent ID: 7400038

Claim:
A semiconductor device comprising: a plurality of substrates including first to fourth substrates, each of the first to fourth substrates including a flat body having a first surface for mounting an electronic component and a second surface substantially parallel to the first surface, the first and second surfaces being disposed parallel to each other in the width direction of the substrate, wherein a first electronic component is mounted on the first substrate, wherein a second electronic component is mounted on the second substrate, the second substrate being disposed so that the first surface of the first substrate and the first surface of the second substrate oppose each other, wherein a third electronic component is mounted on the third substrate, wherein a fourth electronic component is mounted on the fourth substrate, the fourth substrate being disposed so that the first surface of the third substrate and the first surface of the fourth substrate oppose each other, and wherein antennas for receiving signals are formed on the second substrate and on the third substrate disposed adjacent to the second substrate at positions corresponding each other with respect to the second substrate and the third substrate.