Some of the applications of tunnel diode are. Tunnel diode is commonly used for the following purposes. Tunnel Diode Wikipedia Numerical Values Of Parameters Used For The Mis Tunnel Diode File Tunnel Diode Amplifier Svg Wikimedia Commons A tunnel diode is a semiconductor diode that exhibits negative resistance meaning the current decreases with an increase in voltage. Tunnel diode use . When used in the reverse direction tunnel diodes are called back diodes or backward diodes and can act as fast rectifiers with zero offset voltage and extreme linearity for power signals they have an accurate square law characteristic in the reverse direction. It has a switching time of the order of nanoseconds or even picoseconds. Tunnel diode m anufacturing process. The first series of tunnel diodes were formed by the alloying method. Definition tunnel diode ...