Patent ID: 8004054

Claim:
A semiconductor device, comprising: a semiconductor substrate including a semiconductor chip formation region; a chip internal circuit provided within the semiconductor chip formation region of the semiconductor substrate; a signal transmitting/receiving unit which is provided within the semiconductor chip formation region of the semiconductor substrate, transmits/receives a signal to/from an outside in a non-contact manner by one of electromagnetic induction and capacitive coupling, and transmits/receives a signal to/from the chip internal circuit through electrical connection to the chip internal circuit; and a power receiving inductor which has a diameter provided along an outer edge of the semiconductor chip formation region of the semiconductor substrate so as to surround the chip internal circuit and the signal transmitting/receiving unit, receives a power supply signal from the outside in the non-contact manner, and is electrically connected to the chip internal circuit, wherein said signal transmitting/receiving unit transmits/receives said signal to/from said outside in said non-contact manner without using said power receiving inductor.