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Concepts of Turn-on Breakdown

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firry

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Hi,
I have a MOS model that will occur breakdown when Vds>4V,which is called turn-on breakdown. If the FET in cut off region and Vds>4V, will it occur breakdown? Is the term turn-on breakdown means the FET will breakdown when it is work(Vgs>Vth)?
Can anyone give me a document or describing the concepts of Turn-on Breakdown?

Regards,
Firry.
 

i don't understand your question
but what i know is
there us condition called velocity saturation
it happens when applying voltage greater than the voltage which is caused saturation in velocity of electrons
in cut off; ther is no current pass because there is no channel created
 

firry said:
Hi,
I have a MOS model that will occur breakdown when Vds>4V,which is called turn-on breakdown. If the FET in cut off region and Vds>4V, will it occur breakdown? Is the term turn-on breakdown means the FET will breakdown when it is work(Vgs>Vth)?
Can anyone give me a document or describing the concepts of Turn-on Breakdown?

Regards,
Firry.
Click to expand...

Here
 

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