「$useevprofile」:修訂間差異

出自DDCC TCAD TOOL Manual
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第13行: 第13行:
  1:  
  1:  
  2:
  2:
  3: Two different segments, N_sep separaet this two segments  
  3: Two different segments, <Math>N_{sep}</math> separaet this two segments  


  <math>N_{sep}</math>: which_column_the_second_format_start
  <math>N_{sep}</math>: which column where the second segments starts
  <math>N_{total}</math>: total column number  
  <math>N_{total}</math>: total column number  


第26行: 第26行:
  ....
  ....
  ....
  ....
  .... to N_sep-1
  .... to <math> N_{sep-1}</math>
  <math>Ex2_{N_{sep}-1}~~~ V_1 </math>
  <math>Ex2_{N_{sep}}~~~ V_{N_{sep}} </math>
  <math>Ex2_{N_{sep}-1}~~~ V_2 </math>
  <math>Ex2_{N_{sep}+1}~~~ V_{N_{sep}+1} </math>
  <math>Ex2_{N_{sep}-1}~~~ V_3 </math>
  <math>Ex2_{N_{sep}+2}~~~ V_{N_{sep}+2} </math>
  ....
  ....
  ....
  ....
   <math>Ex2_{N_{total}}~~~ V_{1} </math>
   <math>Ex2_{N_{total}}~~~ V_{N_{total}} </math>


   
   

於 2017年9月3日 (日) 02:45 的修訂

If the user needs to use field dependent mobility profile, he has several way to achieve this. The first way is to call $usefieldmufunc , $useemufunc, $useemunfunc, $useemupfunc. However, for this one, you will need to write the code by yourself. The other way is to give the program a E versus velocity table files. And you need to setup the region $xend and $yend to decide which region to use this profile.
Note that his function current is only support Ex field for electron transport in x direction since this function is for FET transistor case. It does not support for holes, neither. When this function is called, other regions or unsupported direction such as Ey or holes will use the constant mobility model.


Format:

$useevprofile
E-versus-v_filename
Ntotal format_type
Nsep
Format_type:
1: 
2:
3: Two different segments, Nsep separaet this two segments 
Nsep: which column where the second segments starts
Ntotal: total column number 



File format of E-versus-v_filename:

Ex11V1
Ex12V2
Ex13V3
....
....
.... to Nsep1
Ex2NsepVNsep
Ex2Nsep+1VNsep+1
Ex2Nsep+2VNsep+2
....
....
 Ex2NtotalVNtotal



For examples:

$useevprofile
mcalgan32-GaN-InGaN.inp.vfoc.res
174 3
131
$xend
89.9999e-04 116.000001e-4
$yend
4.2001e-04 4.000e-04