$SourcePosition
出自 DDCC TCAD TOOL Manual
Format
$SourcePosition pt1 pt2 pt3 pt4 pt5 pt6 // all are floating points.
Source%posi(1-6).
if it is not any node at the pt, the program will find the nearest point/face as the source.
Example
$SourcePosition 700e-9 0 0 0 0 0
