"$ifimpact ion" 修訂間的差異

出自 DDCC TCAD TOOL Manual
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行 16： 行 16：
 
$ifimpact_ion
  
$ifimpact_ion
 
<math>a_{n} b_{n} c_{n} a_{p} b_{p} c_{p} </math>
  
<math>a_{n} b_{n} c_{n} a_{p} b_{p} c_{p} </math>
  +
<math>a_{n} b_{n} c_{n} a_{p} b_{p} c_{p} </math>
  +
<math>a_{n} b_{n} c_{n} a_{p} b_{p} c_{p} </math>
  +
<math>a_{n} b_{n} c_{n} a_{p} b_{p} c_{p} </math>
  +
...
  +
...
  +
... repeat for n-layers

於 2017年8月31日 (四) 08:18 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

G_impact = \frac{|Jn|}{e} \times \alpha_n +\frac{|Jp|}{e} \times \alpha_p

\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_{p}*exp\left( - \left| \left(\frac{b_{p}|Jp|}{\vec{E}\cdot \vec{Jp}}\right)^{c_{p}} \right|\right)

The way to input this command is 

$ifimpact_ion
a_{n} b_{n} c_{n} a_{p} b_{p} c_{p}   
a_{n} b_{n} c_{n} a_{p} b_{p} c_{p}   
a_{n} b_{n} c_{n} a_{p} b_{p} c_{p}   
a_{n} b_{n} c_{n} a_{p} b_{p} c_{p}   
...
...
...  repeat for n-layers
取自 "http://yrwu-wk.ee.ntu.edu.tw/mediawiki/index.php?title=$ifimpact_ion&oldid=520"