docs/IC/physical_verification/design_manual/drm_04_3.rst

4.3. Mask Layer Numbering
=========================

The following table matches the mask or reticle layer number to the drawn/generated layers.

 .. csv-table:: Mask layers
    :file: tables_clear/4.3_mask_layer.csv
    :widths: 150, 150 , 150 , 150,150

.. note::

    1. Nplus needs OPC for tapeouts to FAB5 flow. Refer to YI-093-DR008 for OPC rule. No Nplus OPC is required for tapeouts to FAB6 flow

    2. PIB data polarity is chrome for mask used in FAB2. PIB data polarity is clear for mask used in FAB6.

    3. These layers are used for analog process.