2D HBT Build a structure (material region setting)

● HBT schematic structure

● Set up the width of the structure

● Set layer range

You can refer to the $ranges command.

● Set local range

You can refer to the $triregionnumber, $triregiontype and $triranges commands.

● Set empty section

You can refer to the $emptyperiodshape command.

● Set linear contact

You can refer to the $xd, $contact and $bottomcontactnum commands.