NPN junction- Breakdown

Thread Starter

mrideau

Joined Dec 11, 2009
2
I have an NPN junction in series with a variable voltage source. The P is 1 um in legnth

Na=10^20 mm
Np=10^22 mm
T= 295 K
Un= .15 m^2/v*s
Up=.05 m^2/v*s

tn=tp=10 us

Dtermine the breakdown voltage and the mechenism that caused it to breakdown.

avalanche or punchthrough
 
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