Patent ID: 7208351

Claim:
A method of manufacturing an electronic device, comprising the steps of: providing an IC chip having a memory to store predetermined information and first and second external electrodes provided on front and back sides thereof, respectively; providing first and second antennae, each having a dumet at one end thereof; providing a glass tube; inserting a portion of the dumet of the first antenna into the glass tube; placing the IC chip in contact with the dumet of the first antenna arranged in the glass tube such that the first external electrode is disposed in contact with a side of the first antenna dumet; placing a portion of the dumet of the second antenna in contact with the IC chip arranged in the glass tube such that the dumet of the second antenna is disposed in contact with a side of the second external electrode; and melting the glass tube to fix the IC chip and the dumets of the first and second antennae to maintain an electrical connection between the IC chip and the first antenna dumet and the second antenna dumet; wherein the IC chip comprises a logic circuit, a first diode, a second diode and a condenser; wherein the condenser is connected between the first external electrode and both a cathode of the first diode and an anode of the second diode; wherein the anode of the first diode is connected to the second external electrode and a ground line of the logic circuit; and wherein a cathode of the second diode is connected to a power supply line of the logic circuit.