$PBCpoint x
出自 DDCC TCAD TOOL Manual
Format:
$PBCpoint_x xleft xrigth
Example:
$PBCpoint_x 0 3e-06
xleft is the left x point for periodic boundary condition.
xright is the right x point.
xleft and xright usually correspond to the mesh boundary.
the mesh should be compile with PBC file, if you need to use PBC.
