「$solvetimestep」:修訂間差異

出自DDCC TCAD TOOL Manual
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第5行: 第5行:
  steptype contact_type <math>\delta t ~~  t_{total}</math> par1 par2 par3 par4 ....     
  steptype contact_type <math>\delta t ~~  t_{total}</math> par1 par2 par3 par4 ....     
  steptype contact_type <math>\delta t ~~  t_{total}</math> par1 par2 par3 par4 ....     
  steptype contact_type <math>\delta t ~~  t_{total}</math> par1 par2 par3 par4 ....     
 
...
  steptype contact_type <math>\delta t ~~  t_{total}</math> par1 par2 par3 par4 ....    repeat Nt times
  steptype contact_type <math>\delta t ~~  t_{total}</math> par1 par2 par3 par4 ....    repeat Nt times



於 2018年2月23日 (五) 08:24 的修訂

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

$solvetimestep2D
number_of_different_steps(Nt)
steptype contact_type δtttotal par1 par2 par3 par4 ....    
steptype contact_type δtttotal par1 par2 par3 par4 ....    
...
steptype contact_type 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
1.0e-10 1.0e-6 3.00 0.1 1.0e6 0.0 
 vg=3.0+0.1×sin(2π×106t)