Question

Difference between tunnel diode and backward diode

Answer 1

$tunnel \: diode$

A two-terminal semiconductor diode using tunnelling electrons to perform high-speed switching operations.

$backward \: diode$

In semiconductor devices, a backward diode (also called back diode) is a variation on a Zener diode or tunnel diode having a better conduction for small reverse biases (for example –0.1 to –0.6 V) than for forward bias voltages.