Visible to Intel only — GUID: mwh1410471091395
Ixiasoft
Visible to Intel only — GUID: mwh1410471091395
Ixiasoft
1.10.2. Defining PCB Layers and PCB Layer Thickness
Tcl Commands for Specifying PCB Layer Assignments
set_global_assignment -name PCB_LAYER_THICKNESS 0.00099822M -section_id 1 set_global_assignment -name PCB_LAYER_THICKNESS 0.00034036M -section_id 2 set_global_assignment -name PCB_LAYER_THICKNESS 0.00034036M -section_id 3 set_global_assignment -name PCB_LAYER_THICKNESS 0.00055372M -section_id 4 set_global_assignment -name PCB_LAYER_THICKNESS 0.00034036M -section_id 5 set_global_assignment -name PCB_LAYER_THICKNESS 0.00034036M -section_id 6 set_global_assignment -name PCB_LAYER_THICKNESS 0.00082042M -section_id 7
These Tcl commands specify that there are seven PCB layers in the design, each with a different thickness. In each assignment, the letter M indicates the unit of measurement is millimeters. When you specify PCB layer assignments with Tcl commands, you must list the layers in consecutive order. For example, you would receive an error during SSN Analysis if your Tcl commands created the following assignments:
set_global_assignment -name PCB_LAYER_THICKNESS 0.00099822M -section_id 1 set_global_assignment -name PCB_LAYER_THICKNESS 0.00082042M -section_id 7
To create assignments with the unit of measurement in mils, refer to the syntax in the following Tcl commands.
set_global_assignment -name PCB_LAYER_THICKNESS 14.9MIL -section_id 1 set_global_assignment -name PCB_LAYER_THICKNESS 6.6MIL -section_id 2 set_global_assignment -name PCB_LAYER_THICKNESS 14MIL -section_id 3 set_global_assignment -name PCB_LAYER_THICKNESS 6.6MIL -section_id 4