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Tunnel Diode

The tunnel diode is a p-n Junction device that operates in certain region of I - V characteristic by the tunneling of electrons through potential barrier of the junction. The tunnel diode consist of two degenerate semi-conductors.
 

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Fig.

where,

Ip = peak current

IV = valley current

Vp = peak voltage

Ip/IV = figure of merit for tunnel diode

Vp/Vf = measure of voltage spread between two positive resistance region.





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