Avalanche Breakdown: What is it?

A SIMPLE explanation of Avalanche Breakdown. Understand what Avalanche Breakdown (or “the Avalanche effect”) is, and how it is different from Zener Breakdown. You can read more about Avalanche Breakdown at: www.electrical4u.com/avalanch...
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Avalanche breakdown (or “the avalance effect”) is a phenomenon that can occur in both insulating and semiconducting materials. It is a form of electric current multiplication that can allow very large currents within materials which are otherwise good insulators. It is a type of electron avalanche. The avalanche process occurs when carriers in the transition region are accelerated by the electric field to energies sufficient to create mobile or free electron-hole pairs via collisions with bound electrons.
There is a difference between Avalanche breakdown and Zener breakdown. In Zener breakdown, the electrons “tunnel” from the valence band of the p side to the conduction band on the n side. In classical physics, electrons should not have been able to cross over in this way. Tunnelling is, in fact, a quantum mechanical phenomenon, which comes about from electrons having wave properties.
The main differences between Zener and Avalanche Breakdown are:
1. Zener breakdown and avalanche breakdown are processes by which diodes begin to conduct significant currents, when they are subject to a high reverse voltage.
2. Zener breakdown occurs when the doping levels are high, and involves electrons tunnelling from the valence band of the p side to the conduction band on the n side.
3. Avalanche breakdown occurs when charge carriers which are accelerated by the electric field gain enough kinetic energy such that, when they collide with lattice atoms, they ionise the lattice atoms to produce electron-ion pairs. These pairs, in turn, cause further ionisations, leading to an “avalanche” effect.

[@abigailmike6846]

3:28 is when the avalanche breakdown actually starts

[@ashwinikumar.]

Thanks man....

[@nexo8328]

@Deependra Singh Well sure it is, but for ppl who have that backknowledge to already this is actually a nice timestamp. =)

[@mohammedabusufiyan8934]

Lol 😂. I was solely concentrating on the drawings 😂. How are they so neat and clean?

[@electrical4you]

We have very straight rulers 😁 Glad you like them!

[@alobiswas6059]

Please teach me how to do it. It is so neat and clean.

[@itsme-xo4ku]

@@alobiswas6059 are bhagwan don't be that much innocent ...this is a software

[@manikantasivakumar1327]

😂😂😂😂

[@bhaveshdeore6636]

This is white board animation 😂😅

[@electrical4you]

Thank you for watching! If you want to learn more about Avalanche Breakdown, you can read our full article at: www.electrical4u.com/avalanche-breakdown/

[@chuaca8545]

That's great!

[@electrical4you]

@@chuaca8545 Thank you for your kind words Chua 😄

[@jefflgaol3448]

May I know are you using conventional current or electron current?

[@Dheeru.18]

Atti sundar 🤩

[@AJ-bj5ds]

I like your videos very much sir.Very Simple and clear explanation ....Thank u very much sir ..we r hoping more no. Of videos from u sir ....keep Rocking 😊😃😘

[@QB_Quotes]

So nice video .... mine all concepts are clear now ... Keep ur work, ma'am ... I really appreciate ur work ... :)

[@deveshdembla5252]

Awesome video! Thanks :)

[@allusivasantoshi77]

Finally I got some clarity on avalanche breakdown..thank u.👍👍

[@miraclemayhappensometimes]

Excellent presentation...thankuuuuu

[@swarnameenakshi9980]

Awesome understood well 😎

[@sadamhussain6931]

very help full video... thanks dear uploader...

[@adityakrishnasinha_0460]

So nicely explained

[@gautamgautamkrishna]

informative one..I like it

[@user-bb2gt9yq6g]

Nice .. Thanks👍🏻

[@RedPandaDesu]

So neat diagram :0

[@kratozeus6358]

ShouldStudy I'm in love with the diagrams😍😍

[@sleepyPePe]

Thanks for video :)

[@rohithsrisai4226]

thank you so much

[@aliciajohn5528]

Thank you so much❤

[@sivasankars3535]

Thank you

[@telutron9755]

Amazing class

[@SandhyaMaddippati]

Excellent

[@hamsathvanibalachandran9320]

Very clear

[@AdityaPrasad007]

3:58 The free atom hits the "atom" at high speed... does it hit the atom or does it "hit" valance electrons and thereby pass on KE??

[@cracktheweb6199]

Thanks 🤗

[@AmyContiero]

Thank you, it was very helpful visualisation!

[@shreekant_0711]

Very very very helpful video's of ur channel.. I love 😍 them all

[@electrical4you]

Thank you very much for the feedback! 😄

[@puenchong9322]

Have big mis taken in this video, correctly n- type semiconductor is electron donor , p-type semiconductor is electron accpter. but in this video was resversed

[@dandur7124]

if you are referring to 3 minutes in, she is referring to impurities in the materials.

[@easy2learn896]

Very nice

[@schoollevelphysics1693]

👏👏super 👍

[@sayanguha9962]

3:42 What do you mean by the junction breaks down? ::-- Do you mean to say that the thickness of depletion layer increases ...in other words the depletion layer spreads out?

[@atharvapatil3248]

Nice 👌

[@ramakrishnagara1818]

Excellent presentation. I understood Avalanche Breakdown clearly. Thank you Can u tell me which software/equipment is used for this presentation

[@alansaldanha1698]

Today I fully understood the meaning of avalance breakdown.

[@BharathKumar-eo2hy]

What is the main difference between the avalanche and zener i want clarity

[@perspicacious_100]

nice way

[@soniyajesus552]

Nice

[@hasibulhasan5970]

make more videos like this

[@gpkumar100]

Prof I am giving higher potential to anode +10 v and lower potential to +5 v to cathode. What is the behavior of diode now?

[@hamsathvanibalachandran9320]

p-n junction diode

[@HM-rc7nn]

why this breakdown is non reversible???while zener one is reversible???

[@julianvillanuevachavez9597]

because zener semiconductors are highly doped. In this situation, electrons flow due to electron quantum tunneling and therefore they are not destroyed.

[@nagarajyadav3267]

Nice explaining madam

[@electrical4you]

Thank you for your kind words Nagaraj :)

[@justrandom7214]

How do you draw such straight lines by hand? Is there a trick to it?

[@alok2683]

andi sixtimesseven leave those straight lines and look at those circles

[@arkadeepkashyap2180]

there is a software to do it.. he is not doing it by hand..lol

[@IbrahimAli-kx9kp]

this is freak :D how can you draw such a circle :D Nice video and explanation anyway :D Thanks

[@Norm_y]

Why there is no forward saturation current in pn jn diode....🤔

[@akhileshsajja8843]

what is the main difference between avalanche breakdown and zener breakdown???

[@niaschim]

Akhilesh Sajja 🤔‽ 🤨? 🧐

[@khushikhokhani4775]

In avalanche, breakdown is due to collision while in zener it is dur to high electric field

[@movieclips4602]

Nicee

[@maasbekooy901]

I thought the N-material had too much electrons and the P-material has holes

[@raza8442]

Nice video.......

[@HarshvardhanNigam11]

why have you shown free electron in P side ? i guess holes are the majority carriers in p type SC .

[@HarshvardhanNigam11]

***** i see. Tnx for the reply

[@quinnjohnson7910]

isnt reverse bias suppose to widen the depletion layer?

[@kjeevan9945]

How is she doing it

[@s-restorationking9864]

ini melal immathiri videoyum aayittu erangalleda patti

[@vikashpandey8134]

GCET

[@yaschen]

Hi

[@sanjeetsharma9656]

0:20

[@phasorsystems6873]

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[@circuitsolver9885]

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[@organickeeda5780]

kya smjhae ho bhai....

[@haithemali4769]

srsly should I wait the whole time looking at u drawing rly?

[@redduck4070]

Curry

[@santoshkumarmandal5822]

explanation is not upto the mark

[@amjadalhindi7350]

thank you so much

[@GauravGupta-pb8mk]

Thank you