How to make a semiconductor p type and n type

Question

Accepted Answer

Semiconductor doping is used to make a semiconductor p-type or n-type by introducing impurities with different valence electrons.

To make a semiconductor p-type, impurities with three valence electrons (e.g., boron) are added.
To make a semiconductor n-type, impurities with five valence electrons (e.g., phosphorus) are added.
Doping alters the conductivity and creates majority and minority charge carriers.
P-type has holes as majority carriers, while n-type has electrons as majority carriers.

Accepted Answer

For making p-type semiconductor we have add impurities of group 3 elements to it like aluminium, gallium etc. these are generally the acceptors.

for n-type semiconductors: we have to add group 5 impurities to it. and these are generally the donor elements.

Accepted Answer

We can add the impurities in intrensic semiconductor, according to adding impurities we say it is p type or n type semiconductor,if we add indium,gallium,boran, aluminium then we say p type and when we add arsenic, antimony, phosphorus then we said n type semiconductor.

How to make a semiconductor p type and n type

Top VVDN Technologies Embedded Software Engineer interview questions & answers

Popular interview questions of Embedded Software Engineer

Top HR questions asked in VVDN Technologies Embedded Software Engineer