Patent ID: 7459350

Claim:
A method of fabricating a semiconductor device comprising: providing a semiconductor substrate; forming at least one fuse circuit in the semiconductor substrate, wherein the fuse circuit comprises: a fuse having a first end connected to a first voltage, and a second end; a first transistor having a first current electrode (drain) connected to the second end of the fuse, a control electrode (gate) for receiving an input signal, and a second current electrode (source) connected to a second voltage; a second transistor having a first current electrode connected to the second end of the fuse, a control electrode, and a second current electrode connected to the second voltage; a first diode having an anode and a cathode, the anode of the first diode connected to the second voltage and the cathode of the first diode connected to the second end of the fuse; a second diode having an anode and a cathode, the anode of the second diode connected to the second end of the fuse and the cathode of the second diode connected to the first voltage; a resistor having a first end connected to the anode of the second diode, and a second end; and an inverter having an input end connected to the second end of the resistor, and an output end connected to the control electrode of the second transistor for providing an output signal; and forming a fuse window overlying the at least one fuse circuit.