Creating GDSII Layer Mapping Files

While importing a 2D model (GDSII) file, you can create a mapping of the GDSII layer numbers to layer names in the design stackup.

To create and use the mapping file:

  1. Use a text editor to create a text file that maps GDSII layer numbers to layer names in the stackup. The layer mapping file must have a *.tech suffix.

    In *.tech format:

    • / is the comment character
    • Units may be specified with a line UNITS <string> before the lines of layer information. <string> is any of the allowed desktop length units. The default unit is nm.
    • Each layer is specified by a line that contains <import layer> <product layer> <layer color> <layer elevation> <layer thickness>

    where:

    • <import layer> is the name of the DXF layer
    • <destination layer> is the name to map the DXF layer to
    • <layer color> is a string from the choices listed here
    • <layer elevation> is specified in nms
    • <layer height> is specified in nms

    2. For example:

    Mapping file example
  2. Save the *.tech file locally.
  3. During import, click Open in the Layer mapping panel to locate and open the existing layer mapping file.
  4. Click OK.

    The file is imported into the active Modeler window.