「$ifimpact ion」:修訂間差異

出自DDCC TCAD TOOL Manual
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$ifimpact_ion is a function to turn on the impact ionization. It is a field and current dependent function which will rely on the electric field in the simulation program. <br>
$ifimpact_ion is a function to turn on the impact ionization. It is a field and current dependent function which will rely on the electric field in the simulation program. <br>


The impact ionization generation rate is decided by <br>
The impact ionization generation rate is decided by <br><br>


<math>
<math>
G_impact =  \frac{|Jn|}{e} \times \alpha_n +\frac{|Jp|}{e} \times \alpha_p  
G_impact =  \frac{|Jn|}{e} \times \alpha_n +\frac{|Jp|}{e} \times \alpha_p  
</math><br>
</math><br><br>
<math>
<math>
\alpha_{n} = a_{n}*exp\left( - \left| \left(\frac{b_{n}*|Jn|}{\vec{E}\cdot \vec{Jn}}\right)^{c_{n}} \right|\right)
\alpha_{n} = a_{n}*exp\left( - \left| \left(\frac{b_{n}|Jn|}{\vec{E}\cdot \vec{Jn}}\right)^{c_{n}} \right|\right)
</math><br>
</math><br><br>
<math>
<math>
\alpha_{n} = a_{p}*exp\left( - \left| \left(\frac{b_{p}*|Jp|}{\vec{E}\cdot \vec{Jp}}\right)^{c_{p}} \right|\right)
\alpha_{n} = a_{p}*exp\left( - \left| \left(\frac{b_{p}|Jp|}{\vec{E}\cdot \vec{Jp}}\right)^{c_{p}} \right|\right)
</math>
</math><br><br>




             Gimpact=-absjn/ELCHG*impactratelayer(1,indEl)*&
             Gimpact=-absjn/ELCHG*impactratelayer(1,indEl)*&
                 exp(-abs( ((impactratelayer(2,indEl)*absjn)/productEJ(1))**impactratelayer(3,indEl)))
                 exp(-abs( ((impactratelayer(2,indEl)*absjn)/productEJ(1))**impactratelayer(3,indEl)))

於 2017年8月22日 (二) 03:05 的修訂

$ifimpact_ion is a function to turn on the impact ionization. It is a field and current dependent function which will rely on the electric field in the simulation program.

The impact ionization generation rate is decided by

Gimpact=|Jn|e×αn+|Jp|e×αp

αn=an*exp(|(bn|Jn|EJn)cn|)

αn=ap*exp(|(bp|Jp|EJp)cp|)


           Gimpact=-absjn/ELCHG*impactratelayer(1,indEl)*&
               exp(-abs( ((impactratelayer(2,indEl)*absjn)/productEJ(1))**impactratelayer(3,indEl)))