Klayout 25d View Jun 2026

: You need a script that defines the material stack. This script specifies the for each layer. : Many modern Open-PDKs, such as the IHP SG13G2 PDK , already include pre-configured 2.5D viewer settings. : Once your script is ready, select Tools > 2.5D View Navigating the 3D Space

It extrudes each layer based on its “z” order (defined in the layer properties) so you can visually see:

Instead, the 2.5D view works by by a specified, configurable thickness. This allows you to see the "sandwich" structure of your chip. It provides an excellent, efficient way to visualize: Wiring congestions in a three-dimensional space. klayout 25d view

Work inside a specific leaf cell rather than the top-level chip array.

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. : You need a script that defines the material stack

Currently, the tool has a practical limit of approximately 100,000 polygons . Setting Up Your First 2.5D Scene

: Click the Run button in the macro editor or select your script from the Tools > 2.5d View menu. : Once your script is ready, select Tools > 2

In KLayout, the 2.5D view is a specialized visualization mode that extrudes the flat, 2D polygons of your layout into 3D blocks with a specified vertical thickness. It's called "2.5D" because, unlike a true 3D model, it does not simulate complex process topologies like sloped sidewalls. Instead, it treats each layer as a simple, flat extrusion, creating a "blocks world" representation of your chip.

While powerful, the KLayout 2.5D view is not a full 3D engine. Key limitations include: