Question

what is depletion region in diodes???

Answer 1

the region between n-type and p-type semiconductor material in a p-n junction. i think the positive holes are filled by excess electrons from the n-type material...or something, ha. i could be wrong

Answer 2

free electrons*

Answer 3

This is the small area at the junction of the two different semiconductor materials N and P This region is a electrically charged consisting primarily of ionized atoms with relatively few free electrons or holes.

Answer 4

radar, how does the gap form though?

Answer 5

thanks u very much

Answer 6

Laka, it is a quantum thing with the mobile electrons and holes be caught up in the valence bands ioniizingg the atoms, very similar to a small capacitor where applied bias will eight separate the plates further of bring them closer together depending on the polarity of the bias. the process is by diffusion.

Answer 7

that eight is supposed to be either. lol

Answer 8

wait, bias just refers to the polarity of the voltage, right? ive havent learnt that term yet

Answer 9

I*

Answer 10

nevermind, I googled it :) thanks

Answer 11

bias is the external applied voltage and can be either forward bias or reverse bias depending on the polarity of the externally applied voltage.

Answer 12

so from what i gathered, reverse bias occurs when the holes and free electrons are attracted to opposite ends of the semiconductor material, widening the depletion zone and stopping current flow? whereas forward bias is the opposite? like, there is a two way current flow: conventional current (positive holes) in one direction and an electron drift in the other? is this right

Answer 13

thanks by the way, i zoned out in class when we were getting taught this

Answer 14

It is a good field to get in but is changing very fast. Can'nt keep up lol

Answer 15

I worked in radar with the FAA both as an electronic tech and electronic engineer.

Answer 16

Thankfully I am now retirted and have been retired since 1994

Answer 17

true, it is a fast advancing field. and haha, i was born in 1994. we're doing semiconductors in physics and there are exams next week. but i doubt we have to know this much anyway

Answer 18

Understand, good luck with it.