PUC Karnataka Science Class 12Department of Pre-University Education, Karnataka
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A Zener Diode is Fabricated by Heavily Doping Both P- and N- Sides of the Junction. Explain, Why? - PUC Karnataka Science Class 12 - Physics

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Question

A zener diode is fabricated by heavily doping both p- and n- sides of the junction. Explain, why?

Solution

It is a heavily doped p-n junction. As a result, the depletion region formed is very thin and the electric field of the junction is extremely high even for a small reverse bias voltage.  

The I-V characteristics of a Zener diode are shown in the figure below:

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Solution A Zener Diode is Fabricated by Heavily Doping Both P- and N- Sides of the Junction. Explain, Why? Concept: p-n Junction.
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