「$solvetimestep」:修訂間差異

出自DDCC TCAD TOOL Manual
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  then run
  then run
   <math> vg=3.2 </math><br>
   <math> vg=3.2 </math><br>
<big>'''The $solvetimestep setting for 1D-DDCC in GUI interface '''</big> <br>
3.Modify the number of layers.<br>
[[檔案:1d_$solvetimestep_fig1.jpg|1300px]]<br>
4.Choose the steptype.<br>
5.Modify the parameters.<br>
[[檔案:1d_$solvetimestep_fig2.jpg|1300px]]<br>

於 2025年1月4日 (六) 13:15 的修訂

$solvetimestep is a command for solving the transient behavior of the device. The format is

$solvetimestep
number_of_different_steps(Nt)
steptype δtttotal par1 par2 par3 par4 ....    
steptype δtttotal par1 par2 par3 par4 ....    
...
steptype δtttotal par1 par2 par3 par4 ....    repeat Nt times


The number of parameters depeding on step type. Now we have 3 step types

Steptype  = 1:  
δt,ttotal,vg0
vg=vg_end for t<0, for t>0, vg=vg0
Steptype  = 2:  
δt,ttotal,vg0,A0,ω,c0
vg=vg0+A0×sin(2πωt+c0)
Steptype  = 3:  
δt,ttotal,vg0,A0,ω,c0
vg=vg0+int(A0×sin(2πωt+c0))


For example:

$solvetimestep
2
2 1.0e-10 1.0e-6 3.00 0.1 1.0e6 0.0 
1 1.0e-10 1.0e-6 3.20 
first run
 vg=3.0+0.1×sin(2π×106t)
then run vg=3.2

The $solvetimestep setting for 1D-DDCC in GUI interface

3.Modify the number of layers.

4.Choose the steptype.
5.Modify the parameters.