Patent ID: 7036741

Claim:
A wireless identification semiconductor device comprising: a first conductor; a second conductor; and an IC chip; wherein at least one of first and second conductors serves as an antenna; wherein the IC chip includes a first electrode formed on a front surface of the IC chip, a second electrode formed on a rear surface of the IC chip and a rectifier circuit comprising a first diode, a second diode and a capacitor; wherein a first end of the capacitor is coupled to the first electrode; wherein a second end of the capacitor is coupled to a cathode of the first diode and an anode of the second diode; wherein an anode of the first diode is coupled to the second electrode which is the same potential as that of a substrate of the IC chip; wherein a slit is provided which extends in a direction of a longitudinal axis of at least one of the first and second conductors from a central part of said one of the first and second conductors; wherein the IC chip is coupled between the first conductor and the second conductor through the first electrode and the second electrode; and wherein the other of the first and second conductors crosses over the slit and is coupled to said one of the first and second conductors.