「Solvetimestep2D」：修訂間差異

於 2018年7月9日 (一) 07:28 的修訂

$solvetimestep2D is a command for solving the transient behavior of the device. The format is

$solvetimestep2D
number_of_different_steps(Nt)
steptype contact_type  $δ t t_{t o t a l}$  par1 par2 par3 par4 ....    
steptype contact_type  $δ t t_{t o t a l}$  par1 par2 par3 par4 ....    
...
steptype contact_type  $δ t t_{t o t a l}$  par1 par2 par3 par4 ....    repeat Nt times

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

Steptype  = 1:  

 $δ t, t_{t o t a l}, v g_{0}$ 

 vg=vg_end for t<0, for t>0, vg= $v g_{0}$

Steptype  = 2:  

 $δ t, t_{t o t a l}, v g_{0}, A_{0}, ω, c_{0}$ 

 $v g = v g_{0} + A_{0} \times s i n (2 π ω t + c_{0})$

Steptype  = 3:  

 $δ t, t_{t o t a l}, v g_{0}, A_{0}, ω, c_{0}$ 

 $v g = v g_{0} + i n t (A_{0} \times s i n (2 π ω t + c_{0}))$

contact_type

2: gate
3: source
4: drain

Steptype  = 4:  

 $δ t, t_{t o t a l}, v g_{0}$ 

vg=vg_end for t<0, for t>0, vg= $v g_{0}$  , generation = system generation at t<0 and generation =0 for t> 0

Steptype  = 5:  

 $δ t, t_{t o t a l}, v g_{0}, ω, c_{0}$ 

vg=vg_end for t<0, for t>0, vg= $v g_{0}$  , generation = gen(system)* $(0.5 + 0.5 * c o s (ω * t + c_{0}))$

Steptype  = 6:  

 $δ t, t_{t o t a l}, v g_{0}, ω, c_{0}$ 

vg=vg_end for t<0, for t>0, vg= $v g_{0}$  , generation = gen(system)* $I n t (0.5 + 0.5 * c o s (ω * t + c_{0}))$

For example:

$solvetimestep2D
2
2 2 1.0e-10 1.0e-6 3.00 0.1 1.0e6 0.0 
2 4 1.0e-10 1.0e-6 3.00 0.1 1.0e6 0.0 
  $v g = 3.0 + 0.1 \times s i n (2 π \times 1 0^{6} t)$ 

  $v d = 3.0 + 0.1 \times s i n (2 π \times 1 0^{6} t)$

related:
$savetimestep2D

@@ 第36行： / 第36行： @@
   vg=vg_end for t<0, for t>0, vg=<math> vg_0  </math> , generation = gen(system)*<math> (0.5+0.5*cos (\omega * t + c_{0})) </math> <br>
-  Steptype  = 5:  <br>
+  Steptype  = 6:  <br>
   <math>\delta t,~~ t_{total},~~ vg_0 ,~~ \omega ,~~ c_{0}</math><br>
   vg=vg_end for t<0, for t>0, vg=<math> vg_0  </math> , generation = gen(system)*<math> Int(0.5+0.5*cos (\omega * t + c_{0})) </math> <br>

「Solvetimestep2D」：修訂間差異

於 2018年7月9日 (一) 07:28 的修訂

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