1 Physics -- Semiconductor Devices

Why is the depletion region of Zener diode lesser than that  of PN junction diode ?

Why is the depletion region of Zener diode lesser than that  of PN junction diode ?

PN Junction diode is a semiconductor is made by combination of a low doped p-type and an n-type semiconductor. zener diode is also made similarly but with highly doped semiconductor  because of which similarity between both the semiconductor is that they work similarly in forward bias nut in reverse bias, PN is a total insulator and zener can act normal after passing of zener voltage. Because of the reason that highly doped p-type and n-type semiconductor are used for constructing zener diode its depletion layer becomes lesser than that of PN as it is designed to work as voltage stabilizer i.e. in both, forward and reverse bias.  

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