How far upward (or downward) the layer should extrude.
Unlike a simple 3D toggle, generating a 2.5D view in KLayout requires a . This gives you immense control to define the material stack precisely.
KLayout's 2.5D view is more than just a gimmick—it is a robust analytical engine that turns raw layout data into an insightful, three-dimensional model. While it requires a bit of scripting to unlock its full potential, the flexibility and control it offers for visualizing complex multi-layer designs are unparalleled in a free, open-source EDA tool. klayout 25d view
Manually entering heights for 40+ layers in a modern CMOS process is inefficient. You can automate this by writing a macro using KLayout's API. By writing a script that binds to your Process Design Kit (PDK), you can launch a perfectly scaled 2.5D model with a single click. 2. Using Cut-Planes and Cross-Sections
Everything looks like flat colored paper. Solution: You forgot to set the "Height" in Layer Properties, or you haven't tilted the camera (still in top-down orthographic mode). How far upward (or downward) the layer should extrude
You must define the thickness and z-position for each layer in the layer properties. Left-click + Drag: Rotate the view. Scroll Wheel: Zoom in and out. Right-click + Drag: Pan across the layout.
Inside the 3D View pane, look for the camera icon or the dropdown menu. Ensure the view is set to (not Orthographic). Perspective gives you the "vanishing point" effect, making the depth look realistic. KLayout's 2
The bottom coordinate of the layer relative to the substrate.
Analog and mixed-signal layouts often require substrate contacts and guard rings. In 2.5D view, one can easily see whether a guard ring fully surrounds a sensitive block across all relevant layers, as the extruded rings appear as walls enclosing the region.