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If a chip got transistor breakdown, should the chip show high or low current?

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surianova

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hi all,

If a chip got transistor breakdown, should the chip show high or low current?
 

Teddy

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Re: breakdown

Depends what is happening. Usually it means that gate is shorted to channel or S/D areas are shorted. So th ecurrent should be higher due to a short.
Usually you have destructive effects during ESD pulse.
 

gafsos

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Re: breakdown

hi,
it depends for exemple if u manipulate Antifuse u need a high volatge (for FPGA antifuse or others like SAF single Antifuse), si a high current is needed.
I work in Antifuse domain, don't hesitate to ask me
regards.
g@fsos
 

Syukri

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Re: breakdown

usually the circuit would be build in order to work with your high current...designer would fullfil this spec in their circuit design...

but if breakdown happen the current is higher than it should.....

if the current flow is spech is 1mA(this is high in IC design)...then in breakdown it will reach more than 1mA

if the spec is 10µA then in breakdown even 20µA is considered high
 

Mline7

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Re: breakdown

In fact Breakdown refer to voltage rather than current.

The braekdown voltage is the voltage over which the electric field under the oxyde is too high, and thus the oxyde breaks down and destroy the tansistor.

Whatever your techno is, you should increase the width of the transistor to withstand high current. The voltage should be kept below the breakdown specified by the techno provider.
 

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