Full-Custom Analog IC Design using Cadence DFII Virtuoso/Assura

Figure 13 – Initial Layout Editor windowEach layer in LSW consists of layer texture, layer name and layer type (Figure 14 isan example for POLY1 dg layer). You should always use dg layer type (not pn) unlessit is explicitly said to use other.Left click on the layer in LSW which makes that layer selected (marked with red framein Figure 16) and then you can use it for drawing.There are 4 possible types of selection in the LSW window. AV which means all the layers arevisible, NV makes all the layers invisible, AS which means that all the layers are selectable andNS which makes none of the layers selectable (NV clicked in Figure 14).Figure 14 – LSW in detailDetailed steps for drawing a layout of NOR circuit are shown in an online LayoutTutorial that you can access athttp://moodle.epfl.ch/mod/resource/view.php?id=9282. Please passcarefully through this tutorial in order to learn how to do basic operations. Each step isexplained and keyboard shortcut as well as menu shortcut is given. Moreover in each18/23