Layers
======

Layers Definition
-----------------

Please refer to the :ref:`layer_table` section in the layout rules for more information about the available layers in SG13G2 SiGe BiCMOS technology.

.. _layers_key:

Layout Layers
-------------

.. tip::
    The illustration below is a helpful guide to understanding the layering system used in layout design. Each layer is assigned a unique color, making it visually clear and easier to visualize LVS devices.

.. image:: images/layers_key.png
    :width: 200
    :align: center
    :alt: Layout layers

.. rst-class:: center

    Figure 2.2.1 Layer Color Coding Reference for KLayout

.. image:: images/layers_key_orig.png
    :width: 250
    :align: center
    :alt: Layout layers

.. rst-class:: center

    Figure 2.2.2 Layer Color Coding Reference for Layout (Original)