Question

How are zener diodes made?

Answer 1

Hint: Diodes are going to form by the doping of a semiconductor with different chemicals. Diode means there is a generation of two different poles by the doped material. Diode consists of two different charges or two different regions like positive and negative.

Complete answer:
- First of all a diode is going to form by the doping of a semiconductor with different chemicals.
- The chemicals used in doping are trivalent doping and a pentavalent doping material.
- Trivalent doping material is going to create p –type junction and pentavalent doping material is going to create a type junction.
- This is how p and n type diodes are going to be prepared.

- At the time of doping if we are going to use a huge amount of doping material (p and n type chemicals) then there is a formation of the very thin junction layer at the middle of the semiconductor then it is called zener junction diode or zener diode.
- The zener diode is going to form by the heavy doping of a semiconductor with the respective doping material.

Note:
Zener diodes are mostly used to provide stable reference voltage in the circuits. Generally to breakdown the highest voltage in the circuit’s Zener diode is very useful. This property of resisting the breakdown of the circuit is due to the heavy doping with doping materials.